diff options
| -rw-r--r-- | debian/cloud-init.postinst | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/debian/cloud-init.postinst b/debian/cloud-init.postinst index a36fb248..420420b5 100644 --- a/debian/cloud-init.postinst +++ b/debian/cloud-init.postinst @@ -5,6 +5,11 @@ set -f # disable pathname expansion db_capb escape # to support carriage return / multi-line values +debug() { + [ "${_CI_UPGRADE_DEBUG:-0}" = "0" ] && return 0 + echo "$@" 1>&2 || : +} + update_cfg() { # takes filename, header, new object (in yaml), optionally 'remover' # and merges new into existing object in filename, and then updates file @@ -212,6 +217,66 @@ disable_network_config_on_upgrade() { fi } +fix_azure_upgrade_1611074() { + # adjust /etc/fstab on azure so boot after resize does not mount + # /mnt as ntfs and stop re-formatting. + local fixed_ver="0.7.8-49-1" dspath="/var/lib/cloud/instance/datasource" + local oldver="$1" tmpf="" r="" wmsg="" me="cloud-init postinst" + + # if not on azure, or not booted with instance/ skip out. + if [ ! -e "$dspath" ]; then + debug "no $dspath" + return 0 + fi + if ! grep -qi azure "$dspath"; then + debug "not on azure per $dspath" + return 0 + fi + + # if there is no /etc/fstab, then nothing to fix. + if [ ! -e /etc/fstab ]; then + debug "no /etc/fstab" + return 0 + fi + + if dpkg --compare-versions "$oldver" ge "$fixed_ver"; then + debug "previous version was fixed" + return 0 + fi + + wmsg="WARN: $me failed." + wmsg="$wmsg Subsequent resize may not update ephemeral correctly." + tmpf=$(mktemp "${TMPDIR:-/tmp}/cloud-init-upgrade.XXXXXX") || { + echo "$wmsg (mktemp failed with $?)" 1>&2 + return 0; + } + + awk '{ + if ($4 !~ /x-systemd.requires/ && $4 ~ /comment=cloudconfig/) { + sub(/comment=cloudconfig/, "x-systemd.requires=cloud-init.service,comment=cloudconfig") + } + printf("%s\n", $0)}' /etc/fstab > "$tmpf" || { + echo "$wmsg (awk reading of /etc/fstab failed with $?)" 1>&2 + rm -f "$tmpf" + return 0; + } + if cmp /etc/fstab "$tmpf" >/dev/null 2>&1; then + debug "no changes needed." + else + cat "$tmpf" > /etc/fstab || { + r=$? + echo "$wmsg (cp $tmpf /etc/fstab failed with $r)" + echo ==== expected to write the following to /etc/fstab ===== + cat "$tmpf" + echo ======================================================== + return $r + } 1>&2 + echo "$me fixed /etc/fstab for x-systemd.requires" 1>&2 + fi + rm "$tmpf" || : +} + + if [ "$1" = "configure" ]; then # disable ureadahead (LP: #499520) dpkg-divert --package cloud-init --rename --divert \ @@ -254,6 +319,8 @@ EOF # make upgrades disable network changes by cloud-init disable_network_config_on_upgrade "$2" + + fix_azure_upgrade_1611074 "$2" fi #DEBHELPER# |