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38→I thought it would be funny :p\n 39→\n 40→---\n 41→\n 42→## the problem\n 43→\n 44→Arch Linux assumes you build entirely on the target architecture.\n 45→\n 46→. . .\n 47→\n 48→I do not own a mainframe.\n 49→\n 50→. . .\n 51→\n 52→(but I have access to one)\n 53→\n 54→![](diagrams/mainframe.jpeg){ height=45% }\n 55→\n 56→---\n 57→\n 58→## the solution: a hybrid build\n 59→\n 60→![](diagrams/hybrid-build.png){ height=80% }\n 61→\n 62→---\n 63→\n 64→## step 1: the kernel\n 65→\n 66→cross-compile with `s390x-linux-gnu-gcc` in a Fedora container.\n 67→\n 68→```bash\n 69→make ARCH=s390 CROSS_COMPILE=s390x-linux-gnu- \\\n 70→ -j$(nproc) bzImage modules\n 71→```\n 72→\n 73→this part actually works fine.\n 74→\n 75→. . .\n 76→\n 77→this is the last time I will say that.\n 78→\n 79→---\n 80→\n 81→## step 2: busybox\n 82→\n 83→busybox must be statically linked for the initramfs.\n 84→\n 85→. . .\n 86→\n 87→reliably static-linking s390x binaries requires native compilation.\n 88→\n 89→. . .\n 90→\n 91→you need a real mainframe.\n 92→\n 93→```bash\n 94→$ ssh mainframe\n 95→$ make CONFIG_STATIC=y\n 96→$ scp busybox-s390x-static laptop:boot/\n 97→```\n 98→\n 99→2.3 MB. 60+ applets. built on hardware worth more than my apartment.\n 100→\n 101→::: notes\n 102→busybox is a single binary that provides stripped-down implementations of common Unix utilities (sh, cp, mount, etc). It replaces coreutils, util-linux, and a shell in a single statically-linked binary. The initramfs needs these tools before the real root filesystem is mounted, and busybox is the standard way to provide them in a minimal footprint. The \"ash\" applet in the later slide is busybox's Almquist shell implementation -- the shell that runs as /bin/sh in early boot.\n 103→:::\n 104→\n 105→---\n 106→\n 107→## step 3: mkinitcpio\n 108→\n 109→Arch's initramfs generator assumes it can *run* the binaries it packs.\n 110→\n 111→. . .\n 112→\n 113→it cannot run s390x binaries on x86_64.\n 114→\n 115→. . .\n 116→\n 117→```bash\n 118→# Can't do this on x86_64:\n 119→busybox --list\n 120→# So instead: hardcode all 60+ applet names\n 121→local busybox_applets=(\n 122→ \"[\" \"[[\" \"ash\" \"awk\" \"basename\" \"cat\"\n 123→ \"chmod\" \"cp\" \"dd\" \"df\" \"echo\" \"env\"\n 124→ # ... 50 more lines of this\n 125→)\n 126→```\n 127→\n 128→---\n 129→\n 130→## step 4: the CONFIG_UNIX incident\n 131→\n 132→systemd boots. systemd immediately dies.\n 133→\n 134→. . .\n 135→\n 136→hours later:\n 137→\n 138→```bash\n 139→CONFIG_UNIX=y\n 140→# AF_UNIX sockets. systemd needs these.\n 141→```\n 142→\n 143→---\n 144→\n 145→## the boot sequence\n 146→\n 147→![](diagrams/boot-sequence.png){ width=100% }\n 148→\n 149→total system image: **11 MB** -- smaller than most Electron apps.\n 150→\n 151→---\n 152→\n 153→## it works\n 154→\n 155→```bash\n 156→$ uname -a\n 157→Linux archlinux 6.18.6-arch1-1-s390x #1 SMP s390x GNU/Linux\n 158→\n 159→$ cat /etc/os-release\n 160→NAME=\"Arch Linux\"\n 161→PRETTY_NAME=\"Arch Linux\"\n 162→\n 163→$ busybox | head -1\n 164→BusyBox v1.37.0 (s390x) multi-call binary.\n 165→\n 166→$ systemctl status\n 167→ State: running\n 168→ Units: 12 loaded\n 169→```\n 170→\n 171→---\n 172→\n 173→## what I learned\n 174→\n 175→- cross-compilation has hard limits -- sometimes you need the real hardware\n 176→- distribution tooling has architecture assumptions everywhere\n 177→- `CONFIG_UNIX=y`\n 178→- the s390x boot process is fascinating and completely alien\n 179→\n 180→---\n 181→\n 182→## Arch Linux on s390x\n 183→\n 184→**working today:**\n 185→\n 186→- kernel, initramfs, busybox, systemd\n 187→- full boot to systemd shell\n 188→- QEMU emulation + real z/VM hardware\n 189→\n 190→**next:**\n 191→\n 192→- pacman and makepkg for s390x\n 193→- pacstrap and base packages\n 194→- convince the Arch community this is not a joke\n 195→\n 196→---\n 197→\n 198→## thank you\n 199→\n 200→github.com/pfeifferj/archlinux-s390x\n 201→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. 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You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. 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{"parentUuid":"138ea1d5-3aba-4765-a7c8-51dc16ce8efa","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XPP2rim9StaoAtHYUXVUhB","type":"tool_result","content":"# Arch Linux s390x Port - Makefile\n\n# Output directories\nOUTPUT_DIR := output\nBOOT_DIR := boot\n\n# Output files\nKERNEL := $(OUTPUT_DIR)/vmlinuz-6.18.6-s390x-arch\nINITRAMFS := $(OUTPUT_DIR)/initramfs-6.18.6-s390x.img\nBOOT_KERNEL := $(BOOT_DIR)/vmlinuz-linux\nBOOT_INITRAMFS := $(BOOT_DIR)/initramfs-linux.img\n\n.PHONY: all kernel busybox initramfs boot test test-rootfs test-systemd clean help container systemd\n\n# Default target\nall: boot systemd\n\n# Build Arch Linux kernel with patches\n$(KERNEL): | $(OUTPUT_DIR)\n\t@echo \"Building Arch Linux kernel for s390x...\"\n\t@./scripts/build-arch-kernel.sh\n\nkernel: $(KERNEL)\n\n# Build static busybox on z/VM (manual process)\nbuild-busybox: | $(BOOT_DIR)\n\t@if [ ! -f \"$(BOOT_DIR)/busybox-s390x-static\" ]; then \\\n\t\techo \"❌ ERROR: Static busybox not found!\"; \\\n\t\techo \"\"; \\\n\t\techo \"To build busybox, you must:\"; \\\n\t\techo \"1. SSH into z/VM: ssh -i zvm.pem -o StrictHostKeyChecking=no \\$$ZVM_USER@\\$$ZVM_HOST\"; \\\n\t\techo \"2. Run the build script: ./scripts/build-busybox-zvm.sh\"; \\\n\t\techo \"3. Transfer the resulting busybox binary back to: $(BOOT_DIR)/busybox-s390x-static\"; \\\n\t\techo \"\"; \\\n\t\techo \"The busybox MUST be built natively on s390x hardware for proper static linking.\"; \\\n\t\texit 1; \\\n\telse \\\n\t\techo \"✅ Static busybox already exists at $(BOOT_DIR)/busybox-s390x-static\"; \\\n\tfi\n\n\n# Check busybox binary (must be static build from z/VM)\nbusybox: build-busybox\n\t@echo \"✅ Busybox check complete\"\n\n# Build initramfs (depends on busybox)\n$(INITRAMFS): busybox | $(OUTPUT_DIR)\n\t@echo \"Building initramfs with mkinitcpio...\"\n\t@./scripts/build-initramfs-final.sh\n\ninitramfs: $(INITRAMFS)\n\n# Prepare boot files (depends on kernel and initramfs)\nboot: $(KERNEL) $(INITRAMFS) | boot-dir\n\t@echo \"Preparing boot directory...\"\n\t@./scripts/prepare-boot.sh\n\n# Build container if needed\ncontainer:\n\t@echo \"Building s390x-archlinux-dev container...\"\n\t@./scripts/build-container.sh\n\n# Common validation for test targets\ndefine check_boot_files\n\t@if [ ! -f \"$(BOOT_DIR)/vmlinuz-linux\" ] || [ ! -f \"$(BOOT_DIR)/initramfs-linux.img\" ]; then \\\n\t\techo \"Error: Boot files not found. Run 'make all' first\"; \\\n\t\texit 1; \\\n\tfi\nendef\n\n# Test with QEMU (initramfs-only)\ntest:\n\t$(call check_boot_files)\n\t@echo \"Testing s390x system with QEMU (initramfs-only)...\"\n\t@./scripts/test-qemu.sh initramfs\n\n# Test with root filesystem\ntest-rootfs:\n\t$(call check_boot_files)\n\t@echo \"Testing s390x system with root filesystem...\"\n\t@./scripts/test-qemu.sh rootfs\n\n# Test with systemd as init\ntest-systemd:\n\t$(call check_boot_files)\n\t@if [ ! -d \"output/systemd-root\" ]; then \\\n\t\techo \"Error: Systemd not found. Run 'make systemd' first\"; \\\n\t\texit 1; \\\n\tfi\n\t@echo \"Testing s390x system with systemd...\"\n\t@./scripts/test-qemu.sh systemd\n\n# Create directories\n$(OUTPUT_DIR):\n\t@mkdir -p $@\n\nboot-dir:\n\t@mkdir -p $(BOOT_DIR)\n\n# Build systemd on z/VM (native s390x compilation)\nsystemd-zvm:\n\t@echo \"Building systemd on z/VM...\"\n\t@./scripts/deploy-and-build-systemd-zvm.sh\n\n# Build systemd (alias for z/VM build)\nsystemd: systemd-zvm\n\n# Clean build artifacts\nclean:\n\t@echo \"Cleaning build artifacts...\"\n\t@if [ -d \"$(OUTPUT_DIR)\" ]; then \\\n\t\tif ! rm -rf $(OUTPUT_DIR)/* 2>/dev/null; then \\\n\t\t\techo \"Permission denied. Trying with sudo...\"; \\\n\t\t\tsudo rm -rf $(OUTPUT_DIR)/*; \\\n\t\tfi; \\\n\tfi\n\t@rm -f $(BOOT_KERNEL) $(BOOT_INITRAMFS) 2>/dev/null || true\n\t@echo \"Clean complete.\"\n\n# Show help\nhelp:\n\t@echo \"Arch Linux s390x Port - Build System\"\n\t@echo \"\"\n\t@echo \"Usage: make [target]\"\n\t@echo \"\"\n\t@echo \"Targets:\"\n\t@echo \" all - Build everything (kernel + initramfs + systemd)\"\n\t@echo \" kernel - Build Arch Linux kernel with patches for s390x\"\n\t@echo \" busybox - Check for static s390x busybox (must be built on z/VM)\"\n\t@echo \" initramfs - Build initramfs only (requires busybox)\"\n\t@echo \" boot - Prepare boot directory\"\n\t@echo \" container - Build development container\"\n\t@echo \" systemd - Build minimal systemd on z/VM (native s390x)\"\n\t@echo \" test - Test with QEMU s390x emulation (initramfs only)\"\n\t@echo \" test-rootfs - Test with QEMU and minimal root filesystem\"\n\t@echo \" test-systemd - Test with QEMU and systemd as init\"\n\t@echo \" clean - Remove build artifacts\"\n\t@echo \" help - Show this help message\"\n\t@echo \"\"\n\t@echo \"Quick start:\"\n\t@echo \" make container - Build development container (first time only)\"\n\t@echo \" make all - Build complete system\"\n\t@echo \" make test - Test the built system\"","is_error":false}]},"uuid":"2b393f07-21b2-4f66-93e3-22378aaaf2bb","timestamp":"2026-01-27T22:27:51.602Z","sourceToolAssistantUUID":"138ea1d5-3aba-4765-a7c8-51dc16ce8efa"} {"parentUuid":"2b393f07-21b2-4f66-93e3-22378aaaf2bb","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Bash","command":"python3 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You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. 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Timings are cumulative.\n 4→\n 5→---\n 6→\n 7→## Slide 1: Title [0:00 - 0:08]\n 8→\n 9→*[Walk on, click to first slide.]*\n 10→\n 11→Hi, I'm Josie. This talk is about Arch Linux on an IBM mainframe.\n 12→\n 13→---\n 14→\n 15→## Slide 2: The Premise [0:08 - 0:25]\n 16→\n 17→I use Arch btw.\n 18→\n 19→*[pause for recognition]*\n 20→\n 21→On an IBM mainframe.\n 22→\n 23→*[pause]*\n 24→\n 25→An architecture lineage from 1964. IBM System/360, now z/Architecture.\n 26→The machine your bank still runs its core software on. That one.\n 27→\n 28→---\n 29→\n 30→## Slide 3: s390x in 30 seconds [0:25 - 0:50]\n 31→\n 32→Quick primer. s390x is IBM Z, also branded LinuxONE. It's 64-bit,\n 33→big-endian -- basically the last big-endian architecture anyone still\n 34→manufactures. It doesn't boot, it does IPL -- Initial Program Load.\n 35→Storage isn't a disk, it's DASD. Networking is QETH -- QDIO Ethernet, because apparently regular\n 36→Ethernet wasn't complicated enough. Your bank runs on this hardware. Possibly your government too.\n 37→\n 38→---\n 39→\n 40→## Slide 4: \"Why?\" [0:50 - 1:00]\n 41→\n 42→*[Click once, blank \"Why?\" appears. Let it sit for a beat.]*\n 43→\n 44→Because nobody said I could.\n 45→\n 46→*[Click]*\n 47→\n 48→Also nobody said I couldn't.\n 49→\n 50→---\n 51→\n 52→## Slide 5: The Problem [1:00 - 1:20]\n 53→\n 54→So here's the thing. Arch Linux assumes you're building on the same\n 55→architecture you're targeting. That makes sense -- most people are.\n 56→\n 57→I am not building on a mainframe. I do not own a mainframe. I am\n 58→building on a laptop that cost roughly one millionth of what a mainframe\n 59→costs.\n 60→\n 61→---\n 62→\n 63→## Slide 6: The Hybrid Build [1:20 - 1:50]\n 64→\n 65→The solution is a hybrid. On my x86 laptop, I run a Fedora container\n 66→with the s390x cross-compiler for the kernel. That works fine.\n 67→\n 68→For userspace -- busybox, systemd -- I SSH into an actual z/VM instance\n 69→running RHEL 9.6 on real mainframe hardware, build natively there, and\n 70→SCP the binaries back to my laptop. It's like a distributed build\n 71→system, except one node is an IBM Z and the other is a ThinkPad.\n 72→\n 73→---\n 74→\n 75→## Slide 7: The Kernel [1:50 - 2:02]\n 76→\n 77→The kernel cross-compiles cleanly with the s390x GCC toolchain.\n 78→Standard `make ARCH=s390 CROSS_COMPILE=s390x-linux-gnu-`. This is the\n 79→last step that just works. I want you to appreciate this moment.\n 80→\n 81→---\n 82→\n 83→## Slide 8: Busybox [2:02 - 2:22]\n 84→\n 85→Busybox needs to be statically linked for the initramfs. Static linking\n 86→for s390x cannot be cross-compiled -- glibc static archives for s390x\n 87→don't exist on Fedora. So you SSH to the mainframe, build it there, and\n 88→SCP back 2.3 megabytes of pure native s390x binary. Built on hardware\n 89→worth more than my apartment.\n 90→\n 91→---\n 92→\n 93→## Slide 9: mkinitcpio [2:22 - 2:42]\n 94→\n 95→Arch uses mkinitcpio to build the initramfs. It has a reasonable\n 96→assumption: it can execute the binaries it's packing. Except mine are\n 97→s390x and I'm on x86. So it can't run `busybox --list` to discover\n 98→applets. My fix: hardcode all 60-plus applet names in a bash array.\n 99→Elegant? No. Works? Yes.\n 100→\n 101→---\n 102→\n 103→## Slide 10: CONFIG_UNIX [2:42 - 3:02]\n 104→\n 105→Then systemd. It boots. It immediately dies. No error. No log.\n 106→Just... nothing. After a few hours of staring at QEMU output, I find\n 107→it: `CONFIG_UNIX=y`. AF_UNIX socket support. Systemd will not function\n 108→without it. It will also not tell you this. You just have to know.\n 109→\n 110→---\n 111→\n 112→## Slide 11: Boot Sequence [3:02 - 3:22]\n 113→\n 114→But once you know -- it works. IPL, kernel loads, initramfs unpacks,\n 115→busybox runs early userspace, mounts the root filesystem, switch_root,\n 116→systemd becomes PID 1.\n 117→\n 118→Total image size: 13 megabytes. Smaller than most Electron apps.\n 119→\n 120→---\n 121→\n 122→## Slide 12: It Works [3:22 - 3:40]\n 123→\n 124→`uname -a` says s390x. `/etc/os-release` says Arch Linux. Busybox and\n 125→systemd are running. This is a real, booting, functional Arch Linux\n 126→system on mainframe architecture.\n 127→\n 128→---\n 129→\n 130→## Slide 13: What I Learned [3:40 - 3:55]\n 131→\n 132→Cross-compilation has hard limits. Distribution tooling has architecture\n 133→assumptions everywhere. CONFIG_UNIX=y. And IBM actually gives away free\n 134→mainframe access through the LinuxONE Community Cloud, so you can do\n 135→this too.\n 136→\n 137→---\n 138→\n 139→## Slide 14: Status / Next [3:55 - 4:06]\n 140→\n 141→Everything through systemd boot works today -- on both QEMU emulation\n 142→and real z/VM hardware. Next steps are building pacman and makepkg for\n 143→s390x, then pacstrap and base packages, and convincing the Arch\n 144→community this is not a joke.\n 145→\n 146→---\n 147→\n 148→## Slide 15: Thank You [4:06 - 4:16]\n 149→\n 150→Thank you. The repo is on GitHub. And yes -- I use Arch btw.\n 151→\n 152→*[Nod. Walk off.]*\n 153→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"67efcffa-3f8f-49d1-8b77-1d75824457c7","timestamp":"2026-01-27T22:27:55.232Z","sourceToolAssistantUUID":"bdb17b9e-4f2e-4acc-9d5c-bcdf5bea751a"} {"parentUuid":"67efcffa-3f8f-49d1-8b77-1d75824457c7","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/posttooluse.py"},"parentToolUseID":"toolu_01TAdsyHj25AeQaFGBn2J3Hz","toolUseID":"toolu_01TAdsyHj25AeQaFGBn2J3Hz","timestamp":"2026-01-27T22:27:55.260Z","uuid":"21567693-d762-4d0c-ab01-0f3349487383"} 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28→ sudo apt-get update\n 29→ sudo apt-get install -y podman libarchive-tools wget\n 30→ \n 31→ - name: Build container\n 32→ run: make container\n 33→ \n 34→ - name: Check for required busybox\n 35→ run: |\n 36→ if [ ! -f \"boot/busybox-s390x-static\" ]; then\n 37→ echo \"ERROR: Static busybox not found!\"\n 38→ echo \"\"\n 39→ echo \"To build a release, you must first:\"\n 40→ echo \"1. SSH into z/VM: ssh -i zvm.pem -o StrictHostKeyChecking=no \\$ZVM_USER@\\$ZVM_HOST\"\n 41→ echo \"2. Run the build script: ./scripts/build-busybox-zvm.sh\"\n 42→ echo \"3. Transfer the busybox binary: scp -i zvm.pem \\$ZVM_USER@\\$ZVM_HOST:~/busybox-s390x-static boot/\"\n 43→ echo \"4. Commit the busybox binary to the repository\"\n 44→ echo \"\"\n 45→ echo \"The busybox MUST be built natively on s390x hardware for proper static linking.\"\n 46→ exit 1\n 47→ else\n 48→ echo \"OK: Static busybox found at boot/busybox-s390x-static\"\n 49→ ls -la boot/busybox-s390x-static\n 50→ fi\n 51→ \n 52→ - name: Setup z/VM environment\n 53→ env:\n 54→ ZVM_HOST: ${{ secrets.ZVM_HOST }}\n 55→ ZVM_USER: ${{ secrets.ZVM_USER }}\n 56→ ZVM_SSH_KEY: ${{ secrets.ZVM_SSH_KEY }}\n 57→ run: |\n 58→ # Validate required variables\n 59→ if [ -z \"$ZVM_HOST\" ] || [ -z \"$ZVM_USER\" ] || [ -z \"$ZVM_SSH_KEY\" ]; then\n 60→ echo \"Error: Missing required z/VM configuration\"\n 61→ echo \"Required secrets: ZVM_HOST, ZVM_USER, ZVM_SSH_KEY\"\n 62→ exit 1\n 63→ fi\n 64→ \n 65→ # Setup SSH\n 66→ mkdir -p ~/.ssh\n 67→ echo \"$ZVM_SSH_KEY\" > zvm.pem\n 68→ chmod 600 zvm.pem\n 69→ ssh-keyscan -H $ZVM_HOST >> ~/.ssh/known_hosts\n 70→ \n 71→ # Export for later steps\n 72→ echo \"ZVM_HOST=$ZVM_HOST\" >> $GITHUB_ENV\n 73→ echo \"ZVM_USER=$ZVM_USER\" >> $GITHUB_ENV\n 74→ echo \"ZVM_PORT=${ZVM_PORT:-22}\" >> $GITHUB_ENV\n 75→ echo \"SSH_CONNECT_TIMEOUT=${SSH_CONNECT_TIMEOUT:-10}\" >> $GITHUB_ENV\n 76→ \n 77→ - name: Test z/VM connectivity\n 78→ run: |\n 79→ ssh -i zvm.pem -o ConnectTimeout=$SSH_CONNECT_TIMEOUT $ZVM_USER@$ZVM_HOST \"echo 'z/VM connection successful'\"\n 80→ \n 81→ - name: Build complete system\n 82→ run: |\n 83→ echo \"Building s390x kernel and creating initramfs...\"\n 84→ make all\n 85→ \n 86→ - name: Build systemd on z/VM\n 87→ run: |\n 88→ echo \"Building systemd natively on z/VM...\"\n 89→ make systemd-zvm\n 90→ timeout-minutes: 30\n 91→ \n 92→ - name: Prepare release artifacts\n 93→ run: |\n 94→ mkdir -p release-artifacts\n 95→ \n 96→ # Check if build succeeded\n 97→ if [ ! -f \"boot/vmlinuz-linux\" ] || [ ! -f \"boot/initramfs-linux.img\" ]; then\n 98→ echo \"ERROR: Build artifacts not found!\"\n 99→ echo \"Expected files:\"\n 100→ echo \" boot/vmlinuz-linux\"\n 101→ echo \" boot/initramfs-linux.img\"\n 102→ echo \"\"\n 103→ echo \"Available files in boot/:\"\n 104→ ls -la boot/\n 105→ echo \"\"\n 106→ echo \"Available files in output/:\"\n 107→ ls -la output/ || echo \"output/ directory not found\"\n 108→ exit 1\n 109→ fi\n 110→ \n 111→ # Copy kernel (from boot directory after make all)\n 112→ cp boot/vmlinuz-linux release-artifacts/vmlinuz-linux-s390x\n 113→ \n 114→ # Copy initramfs (from boot directory after make all)\n 115→ cp boot/initramfs-linux.img release-artifacts/initramfs-linux-s390x.img\n 116→ \n 117→ # Copy boot configuration files (excluding large binaries)\n 118→ cp boot/arch.prm release-artifacts/\n 119→ cp boot/generic.ins release-artifacts/\n 120→ cp boot/initrd.addrsize release-artifacts/\n 121→ cp boot/boot-info.txt release-artifacts/\n 122→ \n 123→ # Copy busybox binary\n 124→ cp boot/busybox-s390x-static release-artifacts/\n 125→ \n 126→ # Copy systemd artifacts if available\n 127→ if [ -d \"output/systemd-root\" ]; then\n 128→ echo \"OK: Systemd found, including in release\"\n 129→ tar -czf release-artifacts/systemd-s390x.tar.gz -C output/systemd-root .\n 130→ cp output/systemd-minimal-s390x.tar.gz release-artifacts/ 2>/dev/null || true\n 131→ else\n 132→ echo \"WARNING: Systemd not found, release will be kernel + initramfs only\"\n 133→ fi\n 134→ \n 135→ # Get actual sizes\n 136→ KERNEL_SIZE=$(du -h boot/vmlinuz-linux | cut -f1)\n 137→ INITRAMFS_SIZE=$(du -h boot/initramfs-linux.img | cut -f1)\n 138→ BUSYBOX_SIZE=$(du -h boot/busybox-s390x-static | cut -f1)\n 139→ SYSTEMD_SIZE=\"\"\n 140→ if [ -f \"release-artifacts/systemd-s390x.tar.gz\" ]; then\n 141→ SYSTEMD_SIZE=$(du -h release-artifacts/systemd-s390x.tar.gz | cut -f1)\n 142→ fi\n 143→ \n 144→ # Create build info file\n 145→ cat > release-artifacts/BUILD_INFO.txt << EOF\n 146→ Arch Linux s390x Build Information\n 147→ ==================================\n 148→ \n 149→ Build Date: $(date -u '+%Y-%m-%d %H:%M:%S UTC')\n 150→ Kernel Version: 6.18.6-arch1\n 151→ Architecture: IBM s390x (big-endian)\n 152→ \n 153→ Component Sizes:\n 154→ - Kernel: $KERNEL_SIZE\n 155→ - Initramfs: $INITRAMFS_SIZE \n 156→ - Busybox: $BUSYBOX_SIZE$(if [ -n \"$SYSTEMD_SIZE\" ]; then echo \"\n 157→ - Systemd: $SYSTEMD_SIZE\"; fi)\n 158→ \n 159→ Build Method:\n 160→ - Kernel: Cross-compiled in Fedora container with CONFIG_UNIX and CONFIG_KMOD\n 161→ - Busybox: Statically compiled on z/VM RHEL 9.6\n 162→ - Initramfs: Generated with modified mkinitcpio for s390x$(if [ -n \"$SYSTEMD_SIZE\" ]; then echo \"\n 163→ - Systemd: Natively compiled on IBM z/VM with mount/udevadm utilities\"; fi)\n 164→ \n 165→ Status: $(if [ -n \"$SYSTEMD_SIZE\" ]; then echo \"Fully functional - boots with systemd to 'Welcome to Arch Linux!'\"; else echo \"Fully functional - boots to emergency shell\"; fi)\n 166→ \n 167→ Boot Targets Available:\n 168→ - make test: Initramfs-only system\n 169→ - make test-rootfs: Root filesystem with busybox init$(if [ -n \"$SYSTEMD_SIZE\" ]; then echo \"\n 170→ - make test-systemd: Full systemd boot with modern init system\"; fi)\n 171→ EOF\n 172→ \n 173→ # Create checksums\n 174→ cd release-artifacts\n 175→ sha256sum * > SHA256SUMS\n 176→ cd ..\n 177→ \n 178→ # Create tarball of all artifacts\n 179→ tar -czf archlinux-s390x-${{ github.event.inputs.version }}.tar.gz -C release-artifacts .\n 180→ \n 181→ # Capture build information for GitHub release\n 182→ echo \"KERNEL_VERSION=6.18.6-arch1\" >> $GITHUB_ENV\n 183→ echo \"BUSYBOX_VERSION=1.35.0\" >> $GITHUB_ENV\n 184→ echo \"KERNEL_SIZE=$KERNEL_SIZE\" >> $GITHUB_ENV\n 185→ echo \"INITRAMFS_SIZE=$INITRAMFS_SIZE\" >> $GITHUB_ENV\n 186→ \n 187→ - name: Create GitHub Release\n 188→ uses: softprops/action-gh-release@v1\n 189→ with:\n 190→ tag_name: ${{ github.event.inputs.version }}\n 191→ name: Arch Linux s390x ${{ github.event.inputs.version }}\n 192→ body: |\n 193→ ${{ github.event.inputs.release_notes }}\n 194→ draft: false\n 195→ prerelease: false\n 196→ files: |\n 197→ archlinux-s390x-${{ github.event.inputs.version }}.tar.gz\n 198→ release-artifacts/vmlinuz-linux-s390x\n 199→ release-artifacts/initramfs-linux-s390x.img\n 200→ release-artifacts/busybox-s390x-static\n 201→ release-artifacts/systemd-s390x.tar.gz\n 202→ release-artifacts/systemd-minimal-s390x.tar.gz\n 203→ release-artifacts/BUILD_INFO.txt\n 204→ release-artifacts/SHA256SUMS\n 205→ env:\n 206→ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}\n 207→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"93946df8-ec77-422b-8476-d522f162562c","timestamp":"2026-01-27T22:27:58.424Z","sourceToolAssistantUUID":"99475f04-e878-417f-b330-9835a3014c3a"} {"parentUuid":"93946df8-ec77-422b-8476-d522f162562c","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/posttooluse.py"},"parentToolUseID":"toolu_01YKvkB2UQRbkBUHCv4iQLDA","toolUseID":"toolu_01YKvkB2UQRbkBUHCv4iQLDA","timestamp":"2026-01-27T22:27:58.458Z","uuid":"fddd6482-4dc4-44d5-ae71-fffd0a1a33a2"} 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{"parentUuid":"449cd37f-8bb9-4a83-84a8-8f1a1d893835","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01LVzwLJYYDWpwn1c3G3Urrv","type":"message","role":"assistant","content":[{"type":"text","text":"Let me check if there's a build-slides script or any .asciidoc, .rst files and also look for any GitHub actions related to slides:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":616,"cache_creation_input_tokens":3630,"cache_read_input_tokens":32178,"cache_creation":{"ephemeral_5m_input_tokens":3630,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYfssqTsY5avESE7Wy9M","type":"assistant","uuid":"27d96f84-b955-48fc-a2a3-854b7201be87","timestamp":"2026-01-27T22:28:00.514Z"} 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files"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":616,"cache_creation_input_tokens":3630,"cache_read_input_tokens":32178,"cache_creation":{"ephemeral_5m_input_tokens":3630,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYfssqTsY5avESE7Wy9M","type":"assistant","uuid":"2e1c6674-4e04-4769-a47e-72a21cd53bfd","timestamp":"2026-01-27T22:28:01.253Z"} {"parentUuid":"2e1c6674-4e04-4769-a47e-72a21cd53bfd","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01LVzwLJYYDWpwn1c3G3Urrv","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_012zrEU7y5E9q5LYEEWzomMA","name":"Bash","input":{"command":"find /home/josie/development/archlinux/s390-arch -type f -name \"*.mmd\" 2>/dev/null","description":"Find Mermaid diagram files"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":616,"cache_creation_input_tokens":3630,"cache_read_input_tokens":32178,"cache_creation":{"ephemeral_5m_input_tokens":3630,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYfssqTsY5avESE7Wy9M","type":"assistant","uuid":"4f76cfe9-2be0-4b84-95fe-2c6fa81228a5","timestamp":"2026-01-27T22:28:01.558Z"} 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{"parentUuid":"5ca1b9e4-5bfc-4d01-bd68-305f64c4b31c","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_016YLVxVLXDNCa6aV2K7PJ77","type":"tool_result","content":" 1→{\n 2→ \"theme\": \"base\",\n 3→ \"themeCSS\": \".edge path, .flowchart-link, path.path { stroke-width: 5px !important; } .marker, .arrowMarkerEnd, marker path { fill: #bb86fc !important; stroke: #bb86fc !important; } .edgePath path { stroke-width: 5px !important; }\",\n 4→ \"themeVariables\": {\n 5→ \"primaryColor\": \"#ffffff\",\n 6→ \"primaryTextColor\": \"#000000\",\n 7→ \"primaryBorderColor\": \"#000000\",\n 8→ \"lineColor\": \"#bb86fc\",\n 9→ \"secondaryColor\": \"#f5f5f5\",\n 10→ \"secondaryTextColor\": \"#000000\",\n 11→ \"secondaryBorderColor\": \"#000000\",\n 12→ \"tertiaryColor\": \"#e8e8e8\",\n 13→ \"tertiaryTextColor\": \"#000000\",\n 14→ \"tertiaryBorderColor\": \"#000000\",\n 15→ \"noteBkgColor\": \"#ffffff\",\n 16→ \"noteTextColor\": \"#000000\",\n 17→ \"noteBorderColor\": \"#000000\",\n 18→ \"edgeLabelBackground\": \"#ffffff\",\n 19→ \"clusterBkg\": \"#f0f0f0\",\n 20→ \"clusterBorder\": \"#000000\",\n 21→ \"titleColor\": \"#000000\",\n 22→ \"actorBorder\": \"#000000\",\n 23→ \"actorBkg\": \"#ffffff\",\n 24→ \"actorTextColor\": \"#000000\",\n 25→ \"actorLineColor\": \"#000000\",\n 26→ \"fontFamily\": \"IBM Plex Sans, sans-serif\",\n 27→ \"fontSize\": \"24px\"\n 28→ }\n 29→}\n 30→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"348fc726-522c-40ce-aaad-3f95abc2485a","timestamp":"2026-01-27T22:28:02.247Z","sourceToolAssistantUUID":"5ca1b9e4-5bfc-4d01-bd68-305f64c4b31c"} {"parentUuid":"348fc726-522c-40ce-aaad-3f95abc2485a","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/posttooluse.py"},"parentToolUseID":"toolu_016YLVxVLXDNCa6aV2K7PJ77","toolUseID":"toolu_016YLVxVLXDNCa6aV2K7PJ77","timestamp":"2026-01-27T22:28:02.273Z","uuid":"54de0eb7-4a12-4828-8a54-9320975ac7cc"} {"parentUuid":"54de0eb7-4a12-4828-8a54-9320975ac7cc","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_016YLVxVLXDNCa6aV2K7PJ77","toolUseID":"toolu_016YLVxVLXDNCa6aV2K7PJ77","timestamp":"2026-01-27T22:28:02.273Z","uuid":"b23f4f2a-f4d5-4824-9416-70e19e04d7ac"} {"parentUuid":"b23f4f2a-f4d5-4824-9416-70e19e04d7ac","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01TyBF35XQiZKWSoC1JcWxBd","type":"message","role":"assistant","content":[{"type":"text","text":"Let me read the Mermaid files to see what diagrams are defined:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":7,"cache_creation_input_tokens":1807,"cache_read_input_tokens":35808,"cache_creation":{"ephemeral_5m_input_tokens":1807,"ephemeral_1h_input_tokens":0},"output_tokens":3,"service_tier":"standard"}},"requestId":"req_011CXYft9tNL7pghRmRtJgDW","type":"assistant","uuid":"432e0474-fd11-470c-b9cd-e0a69ddf6c33","timestamp":"2026-01-27T22:28:04.335Z"} 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{"parentUuid":"c344c9fa-1a8d-4fa7-936c-37c670ecb2cf","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_01TyBF35XQiZKWSoC1JcWxBd","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01CKmbx5y6hT7m3c9ujRddtL","name":"Read","input":{"file_path":"/home/josie/development/archlinux/s390-arch/notes/diagrams/boot-sequence.mmd"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":7,"cache_creation_input_tokens":1807,"cache_read_input_tokens":35808,"cache_creation":{"ephemeral_5m_input_tokens":1807,"ephemeral_1h_input_tokens":0},"output_tokens":3,"service_tier":"standard"}},"requestId":"req_011CXYft9tNL7pghRmRtJgDW","type":"assistant","uuid":"e54fad0c-39c9-4bc5-acac-cf778ceaf45e","timestamp":"2026-01-27T22:28:04.692Z"} {"parentUuid":"e54fad0c-39c9-4bc5-acac-cf778ceaf45e","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PreToolUse","hookName":"PreToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/pretooluse.py"},"toolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","parentToolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","uuid":"61d7577c-a3ec-4941-a298-fb12baa3f312","timestamp":"2026-01-27T22:28:04.749Z"} {"parentUuid":"61d7577c-a3ec-4941-a298-fb12baa3f312","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PreToolUse","hookName":"PreToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/pretooluse.py"},"toolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","parentToolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","uuid":"cdf28dff-7977-4b31-af88-3b52119c2b64","timestamp":"2026-01-27T22:28:04.761Z"} {"parentUuid":"e54fad0c-39c9-4bc5-acac-cf778ceaf45e","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01CKmbx5y6hT7m3c9ujRddtL","type":"tool_result","content":" 1→%% Rendered as two separate rows combined with an L-shaped connector arrow.\n 2→%% Row 1:\n 3→graph LR\n 4→ IPL[\"IPL
(Initial Program Load)\"] ==> KERN[\"Kernel 6.18.6-arch1
6.1 MB\"] ==> INIT[\"Initramfs unpacks
5.0 MB\"] ==> BB[\"Busybox early userspace
2.3 MB\"]\n 5→ linkStyle default stroke:#bb86fc,stroke-width:4px\n 6→\n 7→%% Row 2:\n 8→graph LR\n 9→ MNT[\"mount /dev/vda
/new_root\"] ==> SW[\"switch_root\"] ==> SD[\"Systemd PID 1\"] ==> ARCH[\"Welcome to Arch Linux!\"]\n 10→ linkStyle default stroke:#bb86fc,stroke-width:4px\n 11→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"75bbd1a9-3d36-4b48-ac37-e2c4112d1602","timestamp":"2026-01-27T22:28:04.841Z","sourceToolAssistantUUID":"e54fad0c-39c9-4bc5-acac-cf778ceaf45e"} {"parentUuid":"75bbd1a9-3d36-4b48-ac37-e2c4112d1602","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/posttooluse.py"},"parentToolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","toolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","timestamp":"2026-01-27T22:28:04.850Z","uuid":"0afe1b43-8fdc-4ee7-9a2f-8edf689596fa"} {"parentUuid":"0afe1b43-8fdc-4ee7-9a2f-8edf689596fa","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","toolUseID":"toolu_01CKmbx5y6hT7m3c9ujRddtL","timestamp":"2026-01-27T22:28:04.851Z","uuid":"9fe3935f-6759-4751-96b4-b3309dd0b904"} {"parentUuid":"c344c9fa-1a8d-4fa7-936c-37c670ecb2cf","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01WuPDAsz3yF878HuqtSeTDu","type":"tool_result","content":" 1→graph LR\n 2→ subgraph x86[\"x86_64 Laptop\"]\n 3→ F[\"Fedora 39
Container\"]\n 4→ K[\"Cross-compile
Kernel\"]\n 5→ BOOT[\"boot/\"]\n 6→ F ==> K\n 7→ K ==> BOOT\n 8→ end\n 9→\n 10→ subgraph zvm[\"z/VM (Real s390x)\"]\n 11→ R[\"RHEL 9.6
on Mainframe\"]\n 12→ B[\"Build
Busybox\"]\n 13→ S[\"Build
Systemd\"]\n 14→ R ==> B\n 15→ R ==> S\n 16→ end\n 17→\n 18→ B ==>|\"SCP\"| BOOT\n 19→ S ==>|\"SCP\"| BOOT\n 20→\n 21→ x86 <==>|\"SSH\"| zvm\n 22→\n 23→ linkStyle default stroke:#bb86fc,stroke-width:4px\n 24→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n\n"}]},"uuid":"263dbbde-cce3-4bd8-a631-9338652baab4","timestamp":"2026-01-27T22:28:04.846Z","sourceToolAssistantUUID":"c344c9fa-1a8d-4fa7-936c-37c670ecb2cf"} {"parentUuid":"263dbbde-cce3-4bd8-a631-9338652baab4","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/posttooluse.py"},"parentToolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","toolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","timestamp":"2026-01-27T22:28:04.868Z","uuid":"3a9915f7-1246-4be4-93f2-d34d9e1be772"} {"parentUuid":"3a9915f7-1246-4be4-93f2-d34d9e1be772","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","toolUseID":"toolu_01WuPDAsz3yF878HuqtSeTDu","timestamp":"2026-01-27T22:28:04.869Z","uuid":"8c78a16c-9337-4c06-8d92-c2864d0aac61"} {"parentUuid":"8c78a16c-9337-4c06-8d92-c2864d0aac61","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_019nD5Vj5yTE3Y5gjcMwJiCN","type":"message","role":"assistant","content":[{"type":"text","text":"Perfect! Now let me check for any README or documentation about how to build the slides:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":351,"cache_creation_input_tokens":592,"cache_read_input_tokens":37615,"cache_creation":{"ephemeral_5m_input_tokens":592,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYftLv9GNTSPyvXCpGnN","type":"assistant","uuid":"f6d42e6c-8855-4b35-8a7e-ab45da1c2cc3","timestamp":"2026-01-27T22:28:07.297Z"} {"parentUuid":"f6d42e6c-8855-4b35-8a7e-ab45da1c2cc3","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_019nD5Vj5yTE3Y5gjcMwJiCN","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_011giQ6wFEcNbn2DS3MtCznn","name":"Bash","input":{"command":"find /home/josie/development/archlinux/s390-arch -type f -name \"README*\" -o -name \"*.md\" | xargs grep -l \"pandoc\\|slide\\|present\\|html\\|pdf\\|reveal\" 2>/dev/null","description":"Search README files for slide-related content"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":351,"cache_creation_input_tokens":592,"cache_read_input_tokens":37615,"cache_creation":{"ephemeral_5m_input_tokens":592,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYftLv9GNTSPyvXCpGnN","type":"assistant","uuid":"b47720ec-6d05-43f3-936a-9d351fdd35a0","timestamp":"2026-01-27T22:28:08.046Z"} {"parentUuid":"b47720ec-6d05-43f3-936a-9d351fdd35a0","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","message":{"model":"claude-haiku-4-5-20251001","id":"msg_019nD5Vj5yTE3Y5gjcMwJiCN","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01QXj1diaxQHMfP4aW1osVt2","name":"Read","input":{"file_path":"/home/josie/development/archlinux/s390-arch/README.md"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":351,"cache_creation_input_tokens":592,"cache_read_input_tokens":37615,"cache_creation":{"ephemeral_5m_input_tokens":592,"ephemeral_1h_input_tokens":0},"output_tokens":1,"service_tier":"standard"}},"requestId":"req_011CXYftLv9GNTSPyvXCpGnN","type":"assistant","uuid":"946ea503-8e9b-4921-87c1-05d69606b83c","timestamp":"2026-01-27T22:28:08.226Z"} {"parentUuid":"946ea503-8e9b-4921-87c1-05d69606b83c","isSidechain":true,"userType":"external","cwd":"/home/josie/development/archlinux/s390-arch","sessionId":"c166d514-9749-4ac4-bb97-2b686925f954","version":"2.1.19","gitBranch":"main","agentId":"ae2de31","slug":"cozy-seeking-catmull","type":"progress","data":{"type":"hook_progress","hookEvent":"PreToolUse","hookName":"PreToolUse:Bash","command":"python3 ${CLAUDE_PLUGIN_ROOT}/hooks/pretooluse.py"},"toolUseID":"toolu_011giQ6wFEcNbn2DS3MtCznn","parentToolUseID":"toolu_011giQ6wFEcNbn2DS3MtCznn","uuid":"69687765-a281-4b08-8dd4-d9b3f20cdeb2","timestamp":"2026-01-27T22:28:08.269Z"} {"parentUuid":"69687765-a281-4b08-8dd4-d9b3f20