QubesOS/qubes-core-admin-linux
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Backup root.img

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Just in case template %post scriptlet doesn't unlink during reinstall, or if reinstall fails.
Also preserves Netvm prefs setting.
This commit is contained in:
ttasket 2016-06-18 12:00:00 -04:00 committed by GitHub
parent d316624f61
commit 32a4269f4a
1 changed files with 27 additions and 28 deletions
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55
dom0-updates/qubes-dom0-update
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@ -65,15 +65,15 @@ done
# but do allow explicit template reinstalls
if [ "$YUM_ACTION" == "reinstall" ] && [[ "$PKGS" == *"qubes-template-"* ]]; then
TEMPLATE_EXCLUDE_OPTS=""
echo "WARNING: Reinstalling a template will erase files in /home and /rw !"
echo "WARNING: Reinstalling a template will erase all files in template's /home and /rw !"
$ONEPKG=`cut -f 1 -d ' ' <<<$PKGS`
ONEPKG=`cut -f 1 -d ' ' <<<$PKGS`
if [[ "$ONEPKG" == "qubes-template-"* ]] && [[ "$ONEPKG" == "${PKGS#\ }" ]]; then # test "$PKGS" minus space
# Prepare to backup template root.img in case reinstall doesn't complete.
TEMPLATE=${ONEPKG#qubes-template-}
TEMPLATE_NETVM=`qvm-prefs $TEMPLATE netvm` || exit 1
if [[ "$TEMPLATE_NETVM" == *"(default)" ]] ; then TEMPLATE_NETVM="default"
BAK_TEMPLATE_ROOT=`qvm-prefs $TEMPLATE root_img` || exit 1
TEMPLATE_NETVM=`qvm-prefs --force-root $TEMPLATE netvm` || exit 1
[[ "$TEMPLATE_NETVM" == *"(default)" ]] && TEMPLATE_NETVM="default"
BAK_TEMPLATE_ROOT=`qvm-prefs --force-root $TEMPLATE root_img` || exit 1
else
echo "ERROR: Specify only one package to reinstall template"
exit 1
@ -179,7 +179,27 @@ if [ -z "$YUM_ACTION" ]; then
fi
if [ "x$PKGS" != "x" ]; then
yum $YUM_OPTS $YUM_ACTION $PKGS
if [[ -n "$BAK_TEMPLATE_ROOT" ]] ; then
# Backup root.img just in case
echo -n "Renaming template root.img to root.img-bak..."
if mv "$BAK_TEMPLATE_ROOT" "$BAK_TEMPLATE_ROOT-bak" ; then
echo "OK"
else
echo; echo "ERROR: Could not rename root.img"
exit 1
fi
fi
yum $YUM_OPTS $YUM_ACTION $PKGS ; RETCODE=$?
if [[ -n "$BAK_TEMPLATE_ROOT" ]] ; then
qvm-prefs --force-root -s $TEMPLATE netvm $TEMPLATE_NETVM
if [ $RETCODE -eq 0 ] ; then
# Reinstall went OK, remove backup file.
echo "Removing $BAK_TEMPLATE_ROOT-bak"
rm -f "$BAK_TEMPLATE_ROOT-bak"
fi
fi
elif [ -f /var/lib/qubes/updates/repodata/repomd.xml ]; then
# Above file exists only when at least one package was downloaded
if [ "$GUI" == "1" ]; then
@ -187,28 +207,7 @@ elif [ -f /var/lib/qubes/updates/repodata/repomd.xml ]; then
else
yum check-update
if [ $? -eq 100 ]; then # Run yum with options
if [[ -n "$BAK_TEMPLATE_ROOT" ]] ; then
# Backup root.img just in case
echo -n "Renaming template root.img to root.img-bak..."
if mv "$BAK_TEMPLATE_ROOT" "$BAK_TEMPLATE_ROOT-bak" ; then
echo "OK"
else
echo; echo "ERROR: Could not rename root.img"
exit 1
fi
fi
yum $YUM_OPTS $YUM_ACTION ; RETCODE=$?
if [[ -n "$BAK_TEMPLATE_ROOT" ]] ; then
qvm-prefs -s $TEMPLATE netvm $TEMPLATE_NETVM
if [ $RETCODE -eq 0 ] ; then
# Reinstall went OK, remove backup file.
echo "Removing $BAK_TEMPLATE_ROOT-bak"
rm -f "$BAK_TEMPLATE_ROOT-bak"
fi
fi
yum $YUM_OPTS $YUM_ACTION
fi
fi
yum -q check-update && rm -f $UPDATES_STAT_FILE