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dom0-update: fix backup template name calculation

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VM name is limited to 31 chars, not 32.

Fixes QubesOS/qubes-issues#4829
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Marek Marczykowski-Górecki 2019-02-18 05:05:24 +01:00
parent 72a3459119
commit 59ecf8eb83
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1 changed files with 1 additions and 1 deletions
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dom0-updates/qubes-dom0-update
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@ -84,7 +84,7 @@ if [ "$YUM_ACTION" == "reinstall" ] || [ "$YUM_ACTION" == "upgrade" ] || [ "$YUM
UPDATEVM_TEMPLATE=$(qvm-prefs -- "$UPDATEVM" template 2>/dev/null) UPDATEVM_TEMPLATE=$(qvm-prefs -- "$UPDATEVM" template 2>/dev/null)
if [ X"$UPDATEVM_TEMPLATE" = X"$TEMPLATE" ]; then if [ X"$UPDATEVM_TEMPLATE" = X"$TEMPLATE" ]; then
TEMPLATE_BACKUP="${TEMPLATE}-backup-$(date +%Y%m%d)-$(mktemp -u XXXX)" TEMPLATE_BACKUP="${TEMPLATE}-backup-$(date +%Y%m%d)-$(mktemp -u XXXX)"
TEMPLATE_BACKUP=${TEMPLATE_BACKUP:0:32} TEMPLATE_BACKUP=${TEMPLATE_BACKUP:0:31}
echo "Attempting to operate on template of UpdateVM... backing up $TEMPLATE to $TEMPLATE_BACKUP" echo "Attempting to operate on template of UpdateVM... backing up $TEMPLATE to $TEMPLATE_BACKUP"
if ! qvm-clone -- "$TEMPLATE" "$TEMPLATE_BACKUP"; then if ! qvm-clone -- "$TEMPLATE" "$TEMPLATE_BACKUP"; then
echo "ERROR: Unable to make backup of UpdateVM template!" >&2 echo "ERROR: Unable to make backup of UpdateVM template!" >&2