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Author SHA1 Message Date
79ed723303 Notes.md, absolute path normalizing
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- edit NOTES.md for updating line numbers
- add check for using normalized path in initramfs normalization
2025-09-18 21:45:21 +02:00
d649b7e6bf docker: add perl back to builder image
rfs build depends on perl; removing it caused failures. Ensure perl is installed in the container image to restore rfs functionality.
2025-09-18 18:29:32 +02:00
6 changed files with 42 additions and 30 deletions

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@@ -19,6 +19,7 @@ RUN apk add --no-cache \
musl-utils \
pkgconfig \
openssl openssl-dev \
perl \
shadow \
bash \
findutils \

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@@ -46,13 +46,13 @@ Configuration build.conf
- FIRMWARE_TAG optional for reproducible firmware flist naming.
Absolute Path Normalization
- Location: [bash.common.sh](scripts/lib/common.sh:225)
- Location: [bash.common.sh](scripts/lib/common.sh:236)
- After sourcing build.conf, the following variables are normalized to absolute paths anchored at PROJECT_ROOT:
- INSTALL_DIR, COMPONENTS_DIR, KERNEL_DIR, DIST_DIR
- Rationale: Prevents path resolution errors when CWD changes (e.g., when kernel build operates in /workspace/kernel/current, validation now resolves to /workspace/initramfs instead of /workspace/kernel/current/initramfs).
Build Pipeline High Level
- Orchestrator: [bash.main_build_process()](scripts/build.sh:213)
- Orchestrator: [bash.main_build_process()](scripts/build.sh:214)
- Stage list:
- alpine_extract
- alpine_configure
@@ -92,16 +92,16 @@ Initramfs Assembly Key Functions
- Binary size optimization: [bash.initramfs_strip_and_upx()](scripts/lib/initramfs.sh:491)
- Final customization: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:575)
- See “Branding behavior” below.
- Create archive: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:662)
- Create archive: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688)
- Calls finalize, runs sanity checks, and creates initramfs.cpio.xz.
- Validate: [bash.initramfs_validate()](scripts/lib/initramfs.sh:790)
- Validate: [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
- Ensures essential items exist, logs debug info:
- Prints “Validation debug:” lines showing input, PWD, PROJECT_ROOT, INSTALL_DIR, and resolved path.
Kernel Integration
- Get full kernel version: [bash.kernel_get_full_version()](scripts/lib/kernel.sh:13)
- Apply config (embed initramfs): [bash.kernel_apply_config()](scripts/lib/kernel.sh:81)
- Updates CONFIG_INITRAMFS_SOURCE to the archives absolute path via [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:129).
- Updates CONFIG_INITRAMFS_SOURCE to the archives absolute path via [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:130).
- Build kernel: [bash.kernel_build_with_initramfs()](scripts/lib/kernel.sh:173)
- Build and install modules in container: [bash.kernel_build_modules()](scripts/lib/kernel.sh:228)
- Installs modules to /lib/modules/$FULL_VERSION in container, runs depmod -a.
@@ -139,8 +139,8 @@ Validation Diagnostics and Triage
- Root cause:
- INSTALL_DIR re-sourced in a different CWD and interpreted as relative.
- Fix:
- Absolute path normalization of INSTALL_DIR/COMPONENTS_DIR/KERNEL_DIR/DIST_DIR after sourcing build.conf in [bash.common.sh](scripts/lib/common.sh:225).
- Additional “Validation debug” prints added in [bash.initramfs_validate()](scripts/lib/initramfs.sh:790).
- Absolute path normalization of INSTALL_DIR/COMPONENTS_DIR/KERNEL_DIR/DIST_DIR after sourcing build.conf in [bash.common.sh](scripts/lib/common.sh:236).
- Additional “Validation debug” prints added in [bash.initramfs_validate()](scripts/lib/initramfs.sh:799).
- Expected logs now:
- “Validation debug: input='initramfs' PWD=/workspace PROJECT_ROOT=/workspace INSTALL_DIR=/workspace/initramfs”
- Resolves correctly even if called from a different stage CWD.
@@ -172,10 +172,10 @@ File Pointers (quick jump)
- Orchestrator: [scripts/build.sh](scripts/build.sh)
- Common and config loading: [bash.common.sh](scripts/lib/common.sh:1)
- Finalization hook: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:575)
- Passwordless deletion: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:616)
- Validation entry: [bash.initramfs_validate()](scripts/lib/initramfs.sh:790)
- CPIO creation: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:662)
- Kernel embed config: [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:129)
- Passwordless deletion: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:592)
- Validation entry: [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
- CPIO creation: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688)
- Kernel embed config: [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:130)
- RFS packers: [bash.pack-modules.sh](scripts/rfs/pack-modules.sh:1), [bash.pack-firmware.sh](scripts/rfs/pack-firmware.sh:1)
Change Log

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@@ -10,22 +10,22 @@ Mission
Repository map (jump-points)
- Build entrypoint and stages:
- [scripts/build.sh](scripts/build.sh)
- Orchestrator main: [bash.main_build_process()](scripts/build.sh:213)
- Orchestrator main: [bash.main_build_process()](scripts/build.sh:214)
- Kernel build stage wrapper: [bash.stage_kernel_build()](scripts/build.sh:398)
- Initramfs create stage: [bash.stage_initramfs_create()](scripts/build.sh:374)
- Initramfs test stage: [bash.stage_initramfs_test()](scripts/build.sh:385)
- Stages infra: [bash.stage_run()](scripts/lib/stages.sh:99), [scripts/lib/stages.sh](scripts/lib/stages.sh)
- Common utilities and config:
- Config load, logging, path normalization: [bash.common.sh](scripts/lib/common.sh:1)
- Absolute path normalization for INSTALL_DIR, COMPONENTS_DIR, KERNEL_DIR, DIST_DIR: [bash.common.sh](scripts/lib/common.sh:225)
- Absolute path normalization for INSTALL_DIR, COMPONENTS_DIR, KERNEL_DIR, DIST_DIR: [bash.common.sh](scripts/lib/common.sh:236)
- Initramfs assembly:
- All initramfs functions: [scripts/lib/initramfs.sh](scripts/lib/initramfs.sh)
- Final customization hook (branding, dirs, ntp): [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:575)
- Create archive (pre-CPIO checks, call finalize): [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:680)
- Validate contents (with new diagnostics): [bash.initramfs_validate()](scripts/lib/initramfs.sh:791)
- Create archive (pre-CPIO checks, call finalize): [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688)
- Validate contents (with new diagnostics): [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
- Kernel integration:
- Kernel helpers: [scripts/lib/kernel.sh](scripts/lib/kernel.sh)
- Embed initramfs in config: [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:129)
- Embed initramfs in config: [bash.kernel_modify_config_for_initramfs()](scripts/lib/kernel.sh:130)
- Zinit config and init scripts (inside initramfs):
- zinit YAML/services: [config/zinit/](config/zinit/)
- Modules mount script: [sh.modules.sh](config/zinit/init/modules.sh:1)
@@ -44,7 +44,7 @@ High-priority behaviors and policies
2) Path normalization (prevents “resolved under kernel/current” errors)
- After loading [config/build.conf](config/build.conf), key directories are normalized to absolute paths:
- [bash.common.sh](scripts/lib/common.sh:225)
- [bash.common.sh](scripts/lib/common.sh:236)
- Prevents validation resolving INSTALL_DIR relative to CWD (e.g., /workspace/kernel/current/initramfs).
3) Initramfs essential directories guarantee
@@ -97,8 +97,8 @@ Diagnostics-first workflow (strict)
- Example: rm -f .build-stages/validation.done && DEBUG=1 ./scripts/build.sh --skip-tests
- Use existing diagnostics:
- Branding debug lines: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:575)
- Validation debug lines (input, PWD, PROJECT_ROOT, INSTALL_DIR, resolved): [bash.initramfs_validate()](scripts/lib/initramfs.sh:791)
- Pre-CPIO sanity listing and essential checks: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:680)
- Validation debug lines (input, PWD, PROJECT_ROOT, INSTALL_DIR, resolved): [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
- Pre-CPIO sanity listing and essential checks: [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688)
- Only after validation confirms the hypothesis, apply the minimal fix.
Common tasks and commands
@@ -122,13 +122,13 @@ A) Diagnose “passwordless root not working”
- Extract dist/initramfs.cpio.xz to a temp dir and grep '^root:' etc/shadow; expect root::
- If not present:
- Ensure passwd is available in container (comes from shadow package): [Dockerfile](Dockerfile)
- Check we use chroot ${initramfs_dir} passwd -d root (not --root or direct file edits): [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:589)
- Check we use chroot ${initramfs_dir} passwd -d root (not --root or direct file edits): [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:592)
B) Fix “Initramfs directory not found: initramfs (resolved: /workspace/kernel/current/initramfs)”
- Confirm absolute path normalization after config load:
- [bash.common.sh](scripts/lib/common.sh:225)
- [bash.common.sh](scripts/lib/common.sh:236)
- Confirm validation prints “Validation debug:” with resolved absolute path:
- [bash.initramfs_validate()](scripts/lib/initramfs.sh:791)
- [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
C) INITRAMFS_ARCHIVE unbound during kernel build stage
- stage_kernel_build now defaults INITRAMFS_ARCHIVE if unset:
@@ -154,9 +154,9 @@ Project conventions
Key files to keep in sync with behavior decisions
- Branding and finalization: [bash.initramfs_finalize_customization()](scripts/lib/initramfs.sh:575)
- Validation diagnostics: [bash.initramfs_validate()](scripts/lib/initramfs.sh:791)
- Archive creation (pre-CPIO checks): [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:680)
- Path normalization after config: [bash.common.sh](scripts/lib/common.sh:225)
- Validation diagnostics: [bash.initramfs_validate()](scripts/lib/initramfs.sh:799)
- Archive creation (pre-CPIO checks): [bash.initramfs_create_cpio()](scripts/lib/initramfs.sh:688)
- Path normalization after config: [bash.common.sh](scripts/lib/common.sh:236)
- Modules/firmware remote fallback: [sh.modules.sh](config/zinit/init/modules.sh:1), [sh.firmware.sh](config/zinit/init/firmware.sh:1)
- Kernel stage defaulting for archive: [bash.stage_kernel_build()](scripts/build.sh:398)
- Operational notes: [docs/NOTES.md](docs/NOTES.md)

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@@ -1,3 +1,2 @@
# Generated by dhcpcd
# /etc/resolv.conf.head can replace this line
# /etc/resolv.conf.tail can replace this line
nameserver 169.254.1.1
nameserver 192.168.64.254

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@@ -1,4 +1,4 @@
root::20340:0:::::
root::20349:0:::::
bin:!::0:::::
daemon:!::0:::::
lp:!::0:::::

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@@ -803,7 +803,19 @@ function initramfs_validate() {
# Diagnostics to catch path/WD issues during validation
log_info "Validation debug: input='${initramfs_dir_in}' PWD=$(pwd) PROJECT_ROOT=${PROJECT_ROOT:-unset} INSTALL_DIR=${INSTALL_DIR:-unset}"
initramfs_dir=$(resolve_path "${initramfs_dir_in}")
# Normalize initramfs path independent of CWD: anchor relative paths to PROJECT_ROOT
if is_absolute_path "${initramfs_dir_in}"; then
initramfs_dir="${initramfs_dir_in}"
log_debug "Validation path strategy: absolute input honored"
else
if [[ -n "${PROJECT_ROOT:-}" ]]; then
initramfs_dir="${PROJECT_ROOT}/${initramfs_dir_in#./}"
log_debug "Validation path strategy: relative input anchored to PROJECT_ROOT"
else
initramfs_dir="$(pwd)/${initramfs_dir_in}"
log_warn "PROJECT_ROOT unset; falling back to PWD anchoring"
fi
fi
log_info "Validation debug: resolved initramfs_dir='${initramfs_dir}'"
section_header "Validating initramfs contents"