Public bug reported:
Normally system should be able to switch to login screen after oem-
config is finished. However on OEM mode the system stops with black
screen after oem-config is finished.
This bug can be reproduced on Xenial daily image.
Steps:
1) Boot into OEM mode (EFI) and install the system
2) Restart system, click "Prepare for shipping to end user" and reboot system.
3) oem-config starts, enter user information
4) Black screen.
I found there has race condition between oem-config-* scripts.
First, please watch the code pieces I found in the oem-config-firstboot
for try in $(seq 1 $TRY); do
CODE=0
if [ "$FRONTEND" = debconf_ui ]; then
plymouth quit || true
LANG=en_US.UTF-8 FRONTEND="$FRONTEND" \
/usr/sbin/oem-config-wrapper $DEBUG $AUTOMATIC --only \
2>>/var/log/oem-config.log \
|| CODE=$?
else
FRONTEND="$FRONTEND" \
/usr/bin/ubiquity-dm vt7 :0 oem \
/usr/sbin/oem-config-wrapper $DEBUG $AUTOMATIC --only || CODE=$?
fi
if [ "$CODE" -eq 0 ]; then
# Remove the temporary OEM configuration user, if possible
# and desired.
RET="$(echo GET oem-config/remove | debconf-communicate)"
if [ "${RET#* }" = true ] && getent passwd oem >/dev/null; then
pkill -u oem || true
userdel --force --remove oem || true
fi
/bin/systemctl set-default graphical.target || true
/bin/systemctl --no-block isolate graphical.target || true
exit 0
and oem-config-wrapper:
#! /bin/sh
# Run oem-config, plus other things that need to run after it in X.
set -e
LANG=en_US.UTF-8 oem-config "$@"
# 'set -e' will cause us to exit if oem-config fails. Otherwise:
# Don't run again.
rm -f /var/lib/oem-config/run
# Cleanup from anything the early command prepared
RET="$(echo GET oem-config/late_command | debconf-communicate)" || true
if [ "${RET%% *}" = 0 ]; then
command="${RET#* }"
log-output sh -c "$command" || true
fi
RET="$(echo GET oem-config/remove | debconf-communicate)"
if [ "${RET#* }" = true ]; then
#debconf crashes with this set (LP: #641478)
unset DBUS_SESSION_BUS_ADDRESS
#mandb postinst doesn't like not knowing the locale
if [ -r /etc/default/locale ]; then
. /etc/default/locale
export LANG LANGUAGE
fi
# We're about to pull the rug out from under our own feet, so this
# has to run very late.
case $FRONTEND in
debconf_ui)
export DEBIAN_FRONTEND=dialog
oem-config-remove || true
;;
gtk_ui)
oem-config-remove-gtk || true
;;
kde_ui)
export DEBIAN_FRONTEND=kde
oem-config-remove || true
;;
esac
fi
The /usr/sbin/oem-config-wrapper calls oem-config for bring up UI for
user and runs oem-config-remove-gtk to remove all ubiquity packages at
the end.
Because of oem-config-remove-gtk removes all ubiquity packages, the oem-
config-firstboot can't run remaining commands. Therefore session can't
switch to graphical and results in black screen.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
Normally system should be able to switch to login screen after oem-
config is finished. However on OEM mode the system stops with black
screen after oem-config is finished.
Steps:
1) Boot into OEM mode (EFI) and install the system
2) Restart system, click "Prepare for shipping to end user" and reboot system.
3) oem-config starts, enter user information
- 4) Black screen.
+ 4) Black screen.
I found there has race condition between oem-config-* scripts.
First, please watch the code pieces I found in the oem-config-firstboot
for try in $(seq 1 $TRY); do
- CODE=0
- if [ "$FRONTEND" = debconf_ui ]; then
- plymouth quit || true
- LANG=en_US.UTF-8 FRONTEND="$FRONTEND" \
- /usr/sbin/oem-config-wrapper $DEBUG $AUTOMATIC --only \
- 2>>/var/log/oem-config.log \
- || CODE=$?
- else
- FRONTEND="$FRONTEND" \
- /usr/bin/ubiquity-dm vt7 :0 oem \
- /usr/sbin/oem-config-wrapper $DEBUG $AUTOMATIC --only
|| CODE=$?
- fi
- if [ "$CODE" -eq 0 ]; then
- # Remove the temporary OEM configuration user, if possible
- # and desired.
- RET="$(echo GET oem-config/remove | debconf-communicate)"
- if [ "${RET#* }" = true ] && getent passwd oem >/dev/null; then
- pkill -u oem || true
- userdel --force --remove oem || true
- fi
- /bin/systemctl set-default graphical.target || true
- /bin/systemctl --no-block isolate graphical.target || true
- exit 0
+ CODE=0
+ if [ "$FRONTEND" = debconf_ui ]; then
+ plymouth quit || true
+ LANG=en_US.UTF-8 FRONTEND="$FRONTEND" \
+ /usr/sbin/oem-config-wrapper $DEBUG $AUTOMATIC --only \
+ 2>>/var/log/oem-config.log \
+ || CODE=$?
+ else
+ FRONTEND="$FRONTEND" \
+ /usr/bin/ubiquity-dm vt7 :0 oem \
+ /usr/sbin/oem-config-wrapper $DEBUG
