diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init')
| -rwxr-xr-x | meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init b/meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init index 9de00fd2f..0e38f3aeb 100755 --- a/meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init +++ b/meta-openbmc-mods/meta-common/recipes-phosphor/preinit-mounts/preinit-mounts/init @@ -45,14 +45,21 @@ fi # list of things that need to be rw at boot NV_OVERLAYS="/etc /var /home" -# place to mount the real ubifs backing store +# place to mount the overlay backing store +OVERLAY_MNT=/tmp/.overlay +OVERLAY_SIZE=16384 +# place to mount NV RWFS_MNT=/tmp/.rwfs +# NV overlay storage +OVERLAY_SYNC=${RWFS_MNT}/.overlay if grep -q "$RWFS_MNT" /proc/mounts; then # quit - we have already run exit 0 fi -mkdir -p "$RWFS_MNT" +mkdir -p "$OVERLAY_MNT" +# TODO: remount the overlay with a size limit? +# mount -t tmpfs -o rw,size=${OVERLAY_SIZE} oltmp ${OVERLAY_MNT} mtd_by_name() { local name="$1" @@ -73,10 +80,10 @@ NV_MTD_NUM="$(mtdnum_by_name ${NV_MTD})" nvrw() { local p="$1" # Clear the work dir doing overlay mount - rm -rf "${RWFS_MNT}${p}.work" - mkdir -p "${RWFS_MNT}${p}" "${RWFS_MNT}${p}.work" - local mname=$(echo "rwnv${p}" | sed 's,/,,g') - local opts="lowerdir=${p},upperdir=${RWFS_MNT}${p},workdir=${RWFS_MNT}${p}.work,sync" + rm -rf "${OVERLAY_MNT}${p}.work" + mkdir -p "${OVERLAY_MNT}${p}" "${OVERLAY_MNT}${p}.work" + local mname=$(echo "ol${p}" | sed 's,/,,g') + local opts="lowerdir=${p},upperdir=${OVERLAY_MNT}${p},workdir=${OVERLAY_MNT}${p}.work,sync" mount -t overlay -o "$opts" "$mname" "$p" } @@ -84,19 +91,19 @@ targeted_clean() { log "restore-defaults: targeted_clean" # Do not delete FRU info, ssh/ssl certs, or machine-id ( - cd "${RWFS_MNT}/etc" + cd "${OVERLAY_SYNC}/etc" find . ! -regex '.*\(/ssl\|/dropbear\|/machine-id\(_bkup\)\?\|/fru\).*' -exec rm -rf {} + ) # nothing should be in the workdir, but clear it just in case - rm -rf "${RWFS_MNT}/etc.work" + rm -rf "${OVERLAY_SYNC}/etc.work" # clean everything out of /home - rm -rf "${RWFS_MNT}/home" "${RWFS_MNT}/home.work" + rm -rf "${OVERLAY_SYNC}/home" "${OVERLAY_SYNC}/home.work" # clean everything out of /var - rm -rf "${RWFS_MNT}/var" "${RWFS_MNT}/var.work" + rm -rf "${OVERLAY_SYNC}/var" "${OVERLAY_SYNC}/var.work" - echo "Files remaining: $(find $RWFS_MNT/)" + echo "Files remaining: $(find $OVERLAY_SYNC/)" sync } @@ -104,7 +111,7 @@ full_clean() { log "restore-defaults: full_clean" local OVL='' for OVL in $NV_OVERLAYS; do - rm -rf "${RWFS_MNT}${OVL}" "${RWFS_MNT}${OVL}.work" + rm -rf "${OVERLAY_SYNC}${OVL}" "${OVERLAY_SYNC}${OVL}.work" done sync } @@ -153,7 +160,8 @@ clear_ubenv() { flash_erase /dev/mtd/u-boot-env 0 0 } -# mount a UBIFS on the UBI volume +# mount NV filesystem +mkdir -p "$RWFS_MNT" prepare_ubi_volume $NV_MTD_NUM mount -t ubifs -o sync "/dev/ubi${NV_MTD_NUM}_0" "$RWFS_MNT" if [ $? -ne 0 ]; then @@ -178,21 +186,14 @@ elif [ $restore_op -eq 3 ]; then fi rm -f $RESTORE_FLAG +# Restore the overlay saved in the sync +rsync -a --delete "${OVERLAY_SYNC}/" "${OVERLAY_MNT}" +log "Restored overlay from sync location" + for FS in $NV_OVERLAYS; do nvrw "$FS" done -# at first boot, fix up /var/volatile/{log,tmp} to be RW (due to yocto nonsense) -if [ -L /var/log ]; then - # remove symlink /var/log -> volatile/log; make /var/log non-volatile - rm /var/log - mkdir -p /var/log - # remove symlink /var/tmp -> volatile/tmp; symlink to /tmp/var - rm /var/tmp - ln -s /tmp/var /var/tmp -fi -mkdir -p /tmp/var - # work around bug where /etc/machine-id will be mounted with a temporary file # if rootfs is read-only and the file is empty MACHINE_ID=/etc/machine-id @@ -205,9 +206,9 @@ if [ ! -s "$MACHINE_ID" ]; then # work around - Bug: Overlay fs fails for machine-id due to # origin mismatch. Clean it up, from overlay fs before re-creating # the same. - if [ -e "$RWFS_MNT$MACHINE_ID" ]; then + if [ -e "$OVERLAY_MNT$MACHINE_ID" ]; then umount "/etc" - rm -f "$RWFS_MNT$MACHINE_ID" + rm -f "$OVERLAY_MNT$MACHINE_ID" nvrw "/etc" # Restore the machine-id from backup, else generate it. if [ -s "${MACHINE_ID}_bkup" ]; then @@ -237,6 +238,6 @@ if ! grep -q sofs /proc/mounts; then fi fi -log "Finished mounting non-volatile overlays" +log "Finished mounting nv and overlays" exec /lib/systemd/systemd |