Found the problem - for some reason the systemctl service getty@tty[1-4] has a
prerequisite of /dev/tty0 existing. If it is not, all the tty[1-4] do not
start. (tty1 fails, the others are not tried)
SEE below - "ConditionPathExists=/dev/tty0 was not met"
systemctl status getty@tty1
○ getty@tty1.service - Getty on tty1
Loaded: loaded (/lib/systemd/system/getty@.service; enabled; vendor preset>
Active: inactive (dead)
Condition: start condition failed at Wed 2021-10-20 21:50:42 AEDT; 4 days ago
└─ ConditionPathExists=/dev/tty0 was not met
Docs: man:agetty(8)
man:systemd-getty-generator(8)
http://0pointer.de/blog/projects/serial-console.html
If you create the file (eg sudo touch /etc/tty0 in the container) and then
restart the tty daemons, all is good and it works.
eg
sudo systemctl restart getty@tty1
sudo systemctl restart getty@tty2
sudo systemctl restart getty@tty3
sudo systemctl restart getty@tty4
then all is good. However, this workaround needs to be done everytime
the container is started - or you could remove the dependency on
/dev/tty0 for the daemons.
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https://bugs.launchpad.net/bugs/1947811
Title:
cgroups broken in impish
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