cat <<EOT
Usage: "$PROG_NAME__" [OPTIONS] action <device/file> [mountpoint]
-$PROG_NAME__ is a wrapper arround cryptsetup with LUKS support to format a device
+$PROG_NAME__ is a wrapper around cryptsetup with LUKS support to format a device
OPTIONS:
-s size of the loop-filesystem to create, in MB (default=$SIZE_)
Umount the given mountpoint (umount, luksClose, losetup -d)
EOT
+
+ isGrml && cat <<EOT
+NOTICE:
+ losetup does _NOT_ work on unionfs => grml-crypt with a filesystem image does ONLY
+ work if the image is on a tmpfs (eg. in /home/grml or /tmp).
+
+EOT
+
}
notice "Operating on a file"
IS_IMAGE_='true'
if [ -e "$TARGET_" ]; then
- $FORCE_ || die "file $TARGET_ does allready exist"
+ $FORCE_ || die "$TARGET_ does already exist"
warn "overwriting file $TARGET_"
init_='donothing'
else
die "could not initialise the first 2MB of $TARGET_ with /dev/urandom"
elif [[ $OVERWRITE_SOURCE_DEV_ != '/dev/zero' ]]; then
# default mode
- echo "SECURE mode (taking /dev/urandom as source, this could take some time)"
- execute "dd if=/dev/urandom of=$TARGET_ bs=1M &>/dev/null" ||\
- die "could not initialise $TARGET_ with /dev/zero"
+ echo "SECURE mode (taking $OVERWRITE_SOURCE_DEV_ as source, this could take some time)"
+ execute "dd if=$OVERWRITE_SOURCE_DEV_ of=$TARGET_ bs=1M &>/dev/null" #||\
+ # skipped because "no space left on device" from dd
+ # die "could not initialise $TARGET_ with $OVERWRITE_SOURCE_DEV_"
else
echo 'INSECURE mode (only initialising the fist 2MB with /dev/urandom)'
execute "dd if=/dev/urandom of=$TARGET_ bs=1M count=2 &>/dev/null" \
local mount_point_exists_='true'
test -d "$MOUNT_POINT_" || mount_point_exists_='false'
- if [[ "$MOUNT_POINT_" != "" && "$mount_point_exists_" == 'true' ]]; then
+ if [[ $MOUNT_POINT_ != "" && "$mount_point_exists_" == 'true' ]]; then
$READONLY_SET_ && margs_='-r'
execute "mount $margs_ $ADDITIONAL_MOUNT_ARGS_ $DM_PATH_ $MOUNT_POINT_" die
else
- $mount_point_exists_ || warn "mountpoint $MOUNT_POINT_ does not exist, not mounting. please use \"grml-crypt start $ORIG_TARGET_ <mountpoint>\" to start the device"
+ if [[ $MOUNT_POINT_ != "" ]]; then
+ $mount_point_exists_ || warn "mountpoint $MOUNT_POINT_ does not exist, not mounting. please use \"grml-crypt start $ORIG_TARGET_ <mountpoint>\" to start the device"
+ fi
execute "$CRYPTSETUP_ luksClose $DM_NAME_" warn
$IS_IMAGE_ && execute "losetup -d $TARGET_" warn
fi
else
+ execute "$CRYPTSETUP_ luksClose $DM_NAME_" warn
$IS_IMAGE_ && execute "losetup -d $TARGET_" warn
fi
}
# END OF FILE
################################################################################
-# vim:foldmethod=marker
+# vim:foldmethod=marker tabstop=2 expandtab shiftwidth=2