diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/lvm_import_vdo.sh | 48 |
1 files changed, 41 insertions, 7 deletions
diff --git a/scripts/lvm_import_vdo.sh b/scripts/lvm_import_vdo.sh index 685821f13..39a320c84 100755 --- a/scripts/lvm_import_vdo.sh +++ b/scripts/lvm_import_vdo.sh @@ -50,6 +50,7 @@ DM_DEV_DIR="${DM_DEV_DIR:-/dev}" DEVICENAME="" DEVMAJOR=0 DEVMINOR=0 +PROMPTING="" DRY=0 VERB="" @@ -57,7 +58,8 @@ FORCE="" YES="" # default name for converted VG and its VDO LV -NAME="vdovg/vdolvol" +DEFAULT_NAME="vdovg/vdolvol" +NAME="" # help message tool_usage() { @@ -100,6 +102,7 @@ dry() { cleanup() { trap '' 2 + test -z "$PROMPTING" || echo "No" rm -rf "$TEMPDIR" # error exit status for break exit "${1:-1}" @@ -175,7 +178,9 @@ detect_lv_() { ;; esac - DEV="$("$DMSETUP" info -c -j "$DEVMAJOR" -m "$DEVMINOR" -o uuid,name --noheadings --nameprefixes --separator ' ' 2>/dev/null)" + test "$DEVMAJOR" != "$(grep device-mapper /proc/devices | cut -f1 -d' ')" && return + + DEV="$("$DMSETUP" info -c -j "$DEVMAJOR" -m "$DEVMINOR" -o uuid,name --noheadings --nameprefixes --separator ' ')" case "$DEV" in Device*) ;; # no devices *) eval "$DEV" ;; @@ -244,15 +249,31 @@ convert2lvm_() { detect_lv_ "$DEVICE" case "$DM_UUID" in LVM-*) eval "$("$DMSETUP" splitname --nameprefixes --noheadings --separator ' ' "$DM_NAME")" - if [ -z "$VGNAME" ] || [ "$VGNAME" = "$LVNAME" ] ; then + if [ -z "$VGNAME" ] || [ "$VGNAME" = "$LVNAME" ] ; then VGNAME=$DM_VG_NAME - LVNAME=$DM_LV_NAME + verbose "Using existing volume group name $VGNAME." + test -n "$LVNAME" || LVNAME=$DM_LV_NAME elif test "$VGNAME" != "$DM_VG_NAME" ; then - error "Volume group name \"$VGNAME\" does not match name \"$DM_VG_NAME\" for device \"$DEVICE\"." + error "Volume group name \"$VGNAME\" does not match name \"$DM_VG_NAME\" for VDO device \"$DEVICE\"." fi ;; - *) IS_LV=0 - # Check $VGNANE does not already exists + *) IS_LV=0 + # Check if we need to generate unused $VGNANE + if [ -z "$VGNAME" ] || [ "$VGNAME" = "$LVNAME" ] ; then + VGNAME=${DEFAULT_NAME%/*} + # Find largest matching VG name to our 'default' vgname + LASTVGNAME=$(LC_ALL=C "$LVM" vgs -oname -O-name --noheadings -S name=~${VGNAME} | grep -E "$VGNAME[0-9]? ?" | head -1) + if test -n "$LASTVGNAME" ; then + LASTVGNAME=${LASTVGNAME#*${VGNAME}} + # If the number is becoming too high, try some random number + test "$LASTVGNAME" -gt 99999999 2>/dev/null && LASTVGNAME=$RANDOM + # Generate new unused VG name + VGNAME="${VGNAME}$(( ${LASTVGNAME} + 1 ))" + verbose "Selected unused volume group name $VGNAME." + fi + fi + # New VG is created, LV name should be always unused. + test -n "$LVNAME" || LVNAME=${DEFAULT_NAME#*/} "$LVM" vgs "$VGNAME" >/dev/null 2>&1 && error "Cannot use already existing volume group name \"$VGNAME\"." ;; esac @@ -328,6 +349,19 @@ EOF ) verbose "VDO conversion paramaters: $PARAMS" + # If user has not provided '--yes', prompt before conversion + if test -z "$YES" ; then + PROMPTING=yes + echo -n "Convert VDO device \"$DEVICE\" to VDO LV \"$VGNAME/$LVNAME\"? [y|N]: " + read -n 1 -s ANSWER + case "${ANSWER:0:1}" in + y|Y ) echo "Yes" ;; + * ) echo "No" ; PROMPTING=""; exit ;; + esac + PROMPTING="" + YES="-y" # From now, now prompting + fi + verbose "Stopping VDO volume." dry "$VDO" stop $VDOCONF --name "$VDONAME" |