Public bug reported:
Hardware: headless device (Axiomtek NA-330)
Connected to console port (RJ45) via minicom using 115200 8N1
In Ubuntu 14.04 LTS run do-release-upgrade (to Ubuntu 16.04.1 LTS)
At end, confirm reboot
No serial console after that (fortunately the network connection came up
allowing ssh access)
Debugging/work-around:
/etc/default/grub contained GRUB_TERMINAL=serial and
GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no
--stop=1"
which was reflected in /boot/grub/grub.cfg
dmesg | grep tty produced
[ 0.000000] console [tty0] enabled
[ 1.612175] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is
a 16550A
[ 1.632768] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is
a 16550A
systemctl enable console-getty.service
systemctl enable [email protected]
systemctl start console-getty.service
systemctl start [email protected]
Ctrl-A F in minicom returned the login prompt which hadn't worked previously
After the work-around the console port turned out to be ttyS0 so some of
the above may not be necessary.
** Affects: ubuntu
Importance: Undecided
Status: New
** Attachment added: "Contents of /var/log/dist-upgrade"
https://bugs.launchpad.net/bugs/1611921/+attachment/4718556/+files/bug.tgz
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1611921
Title:
no serial console after reboot in do-release-upgrade (14.04)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bug/1611921/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
