# limitations under the License.
# usage: mount-latest-subvol
+#
+# Note, at source location, intentionally not executable, run and read
+# install-my-scripts.
cd /
[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
for p in ${pids}; do
for m in ${my_pids[@]}; do
if (( p == m )); then
- echo "$0: error: pids to kill includes our pid or a parent" >&2
+ echo "$0: error: pids to kill includes our pid or a parent. ps output:" >&2
ps -f -p $p
exit 1
fi
ret=0
##### begin setup fstab for subvols we care about ######
-first_root_crypt=$(awk '$2 == "/" {print $1}' /etc/mtab)
+root_dev=$(awk '$2 == "/" {print $1}' /etc/mtab)
+
+
+if cryptsetup status $root_dev &>/dev/null; then
+ crypt_dev=$root_dev
+else # if we are in a recovery boot, find the next best crypt device
+ noauto=,noauto
+ for dev in $(dmsetup ls --target crypt | awk '{print $1}'); do
+ dev=/dev/mapper/$dev
+ if awk '{print $1}' /etc/mtab | grep -Fx $dev &>/dev/null; then
+ crypt_dev=$dev
+ break
+ fi
+ done
+fi
+
+
fstab <<EOF
-$first_root_crypt /a btrfs noatime,subvol=a 0 0
+$crypt_dev /a btrfs noatime,subvol=a$noauto 0 0
EOF
shopt -s nullglob
f=(/mnt/root/btrbk/q.*)
if [[ -e $f ]]; then
fstab <<EOF
-$first_root_crypt /q btrfs noatime,subvol=q,gid=1000 0 0
-/q/p /p none bind 0 0
+$crypt_dev /q btrfs noatime,subvol=q,gid=1000$noauto 0 0
+/q/p /p none bind$noauto 0 0
EOF
fi
f=(/mnt/root/btrbk/o.*)
if [[ -e $f ]]; then
fstab <<EOF
-$first_root_crypt /o btrfs noatime,subvol=o 0 0
-/o/m /m none bind 0 0
+$crypt_dev /o btrfs noatime,subvol=o$noauto 0 0
+/o/m /m none bind$noauto 0 0
EOF
fi
if [[ $HOSTNAME == frodo ]]; then
fstab <<EOF
-$first_root_crypt /i btrfs noatime,subvol=i 0 0
+$crypt_dev /i btrfs noatime,subvol=i$noauto 0 0
EOF
fi
##### end setup fstab for subvols we care about ######
# if latest is already mounted, make sure binds are mounted and move on
- if e check-subvol-stale $d; then
+ e check-subvol-stale $d
+ # populated by check-subvol-stale if stale
+ if ! fresh_snap=$(</nocow/btrfs-stale/$vol); then
mnt $d
for b in ${binds[@]}; do
mnt $b
continue
fi
- fresh_snap=$(</nocow/btrfs-stale/$vol)
- if [[ ! $fresh_snap ]]; then
- echo "$0: error. empty fresh_snap var"
- ret=1
- continue
- fi
-
umount_ret=true
unmounted=()
for dir in $(echo $d ${binds[*]}\ |tac -s\ ); do