On 08/12/2011 05:08 PM, Gerardo Exequiel Pozzi wrote:

v2: Fixed paths inside checksums.md5 (thanks Pierre). Also fix find arguments, and make a separate function in archiso hook for md5sum.

NOTE 1: Needs md5sum, not added here (Waiting for rebuild of mkinitcpio-busybox) NOTE 2: This is a draft without testing, but should works(tm).

Signed-off-by: Gerardo Exequiel Pozzi<vmlinuz386@yahoo.com.ar> --- README | 4 ++++ archiso/hooks/archiso | 25 +++++++++++++++++++++++++ archiso/mkarchiso | 17 +++++++++++++++++ configs/baseline/build.sh | 1 + configs/releng/build.sh | 2 ++ 5 files changed, 49 insertions(+), 0 deletions(-)

diff --git a/README b/README index 4eaf904..852f3bd 100644 --- a/README +++ b/README @@ -31,6 +31,10 @@ INDEX * copytoram= If set to "y" or just "copytoram" without arguments, all SquashFS are copied to "RAM". Default: (unset) +* checksum= If set to "y" or just "checksum" without arguments, + performs a self-test of all files inside ${install_dir}, + and continue booting if ok. + Default: (unset) * cowspace_size= Set the size of tmpfs /cowspace. This space is used for Copy-On-Write files of dm-snapshot. (directory not visible outside initramfs) diff --git a/archiso/hooks/archiso b/archiso/hooks/archiso index 66dbafd..0495195 100644 --- a/archiso/hooks/archiso +++ b/archiso/hooks/archiso @@ -77,6 +77,16 @@ _mnt_sfs() { fi }

+_verify_checksum() { + local _status + cd "/bootmnt/${archisobasedir}" + md5sum -c checksum.md5> /checksum.log 2>&1 + _status=$? + cd "${OLDPWD}" + return ${_status} +} + + run_hook() { [[ -z "${arch}" ]]&& arch="$(uname -m)" [[ -z "${cowspace_size}" ]]&& cowspace_size="75%" @@ -135,6 +145,21 @@ archiso_mount_handler() { launch_interactive_shell fi

+ if [[ "${checksum}" == "y" ]]; then + if [[ -f "/bootmnt/${archisobasedir}/checksum.md5" ]]; then + echo ":: Self-test requested, please wait..." + if _verify_checksum; then + echo "done. Checksum is OK, continue booting." + else + echo "ERROR: one or more files are corrupted, see /checksum.log for details" + launch_interactive_shell + fi + else + echo "ERROR: checksum=y option specified but checksum.md5 not found" + launch_interactive_shell + fi + fi + if [[ "${copytoram}" == "y" ]]; then msg -n ":: Mounting /copytoram (tmpfs) filesystem, size=${copytoram_size}..." mount -t tmpfs -o "size=${copytoram_size}",mode=0755 copytoram /copytoram diff --git a/archiso/mkarchiso b/archiso/mkarchiso index 12d8936..6826441 100755 --- a/archiso/mkarchiso +++ b/archiso/mkarchiso @@ -112,6 +112,8 @@ _usage () echo " includes all specified packages" echo " prepare<dir>" echo " build all images" + echo " checksum<dir>" + echo " make a checksum.md5 for self-test" echo " iso<dir> <image name>" echo " build an iso image from the working dir" exit ${1} @@ -134,6 +136,8 @@ _show_config () { ;; prepare) ;; + checksum) + ;; iso) _msg_info " Image name: ${img_name}" _msg_info " Disk label: ${iso_label}" @@ -286,6 +290,16 @@ _mkfs () { _umount_fs "${work_dir}/mnt/${_src}" }

+command_checksum () { + _show_config checksum + + _msg_info "Creating checksum file for self-test" + cd "${work_dir}/iso/${install_dir}" + find -type f ! -name checksum.md5 -print0 | xargs -0 md5sum> checksum.md5 + cd ${OLDPWD} + _msg_info "Done!" +} + # Create an ISO9660 filesystem from "iso" directory. command_iso () { if [[ ! -f "${work_dir}/iso/isolinux/isolinux.bin" ]]; then @@ -428,6 +442,9 @@ case "${command_name}" in prepare) command_prepare ;; + checksum) + command_checksum + ;; iso) if [[ $# -lt 3 ]]; then _msg_error "No image specified" 0 diff --git a/configs/baseline/build.sh b/configs/baseline/build.sh index a07599c..eabe21f 100755 --- a/configs/baseline/build.sh +++ b/configs/baseline/build.sh @@ -86,6 +86,7 @@ make_prepare() {

# Build ISO make_iso() { + mkarchiso ${verbose} checksum "${work_dir}" mkarchiso ${verbose} -D "${install_dir}" -L "${iso_label}" iso "${work_dir}" "${name}-${version}-${arch}.iso" }

diff --git a/configs/releng/build.sh b/configs/releng/build.sh index d078ee2..44e41f6 100755 --- a/configs/releng/build.sh +++ b/configs/releng/build.sh @@ -163,6 +163,7 @@ make_prepare() { # args: $1 (core | netinstall) make_iso() { local _iso_type=${1} + mkarchiso ${verbose} checksum "${work_dir}" mkarchiso ${verbose} -D "${install_dir}" -L "${iso_label}" iso "${work_dir}" "${name}-${version}-${_iso_type}-${arch}.iso" }

@@ -206,6 +207,7 @@ make_dual() { sed "s|%ARCHISO_LABEL%|${iso_label}|g; s|%INSTALL_DIR%|${install_dir}|g" ${_cfg}> ${work_dir}/dual/iso/${install_dir}/boot/syslinux/${_cfg##*/} done + mkarchiso ${verbose} checksum "${work_dir}/dual" mkarchiso ${verbose} -D "${install_dir}" -L "${iso_label}" iso "${work_dir}/dual" "${name}-${version}-${_iso_type}-dual.iso" :> ${work_dir}/dual/build.${FUNCNAME}_${_iso_type} fi I will merge this in 24 hours. (An improved version, only changed how messages are displayed). It's safe even if newer mkinitcpio-busybox does not hit [core], since is not enabled by default.

-- Gerardo Exequiel Pozzi \cos^2\alpha + \sin^2\alpha = 1