diff options
Diffstat (limited to '')
| -rwxr-xr-x | liveinit | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -48,6 +48,9 @@ LIVEPATH="" # to avoid anything that writes to disk after we copy the OS to RAM. VIRGIN=0 +# If set to '1', existing persistent data will be wiped: +WIPE_PERSISTENCE=0 + # Used for debugging the init; # Set DEBUG to '1' to enable explicit pauses; '2' enables verbose script exec; # and '4' dumps you into a debug shell right before the switch_root: @@ -176,6 +179,11 @@ for ARG in $(cat /proc/cmdline); do nop) VIRGIN=1 ;; + nop=*) + if [ "$(echo $ARG | cut -f2 -d=)" = "wipe" ]; then + WIPE_PERSISTENCE=1 + fi + ;; persistence=*) PERSISTENCE=$(echo $ARG | cut -f2 -d=) ;; @@ -670,6 +678,10 @@ if [ "$RESCUE" = "" ]; then # Try a write... just to be dead sure: if touch /mnt/media/${PERSISTENCE}/.rwtest 2>/dev/null && rm /mnt/media/${PERSISTENCE}/.rwtest 2>/dev/null ; then # Writable media and we are allowed to write to it. + if [ "$WIPE_PERSISTENCE" = "1" ]; then + echo "${MARKER}: Wiping existing persistent data in '/${PERSISTENCE}'." + find /mnt/media/${PERSISTENCE}/ -mindepth 1 -exec rm -rf {} \; 2>/dev/null + fi echo "${MARKER}: Writing persistent changes to media directory '/${PERSISTENCE}'." UPPERDIR=/mnt/media/${PERSISTENCE} OVLWORK=/mnt/media/.ovlwork @@ -700,6 +712,10 @@ if [ "$RESCUE" = "" ]; then echo "${MARKER}: Failed to mount persistence file '/${PERSISTENCE}.img'." echo "${MARKER}: Falling back to RAM." else + if [ "$WIPE_PERSISTENCE" = "1" ]; then + echo "${MARKER}: Wiping existing persistent data in '/${PERSISTENCE}.img'." + find /mnt/live/${prdir}/${PERSISTENCE}/ -mindepth 1 -exec rm -rf {} \; 2>/dev/null + fi echo "${MARKER}: Writing persistent changes to file '/${PERSISTENCE}.img'." UPPERDIR=/mnt/live/${prdir}/${PERSISTENCE} OVLWORK=/mnt/live/${prdir}/.ovlwork |