Comment 0 for bug 1996619

Revision history for this message
Heather Lemon (hypothetical-lemon) wrote :

There is an error message that get thrown in in syslog.
There is a suggestion to fix by upgrading the KDB package to version 2.5.1+ or
to understand the root cause and troubleshoot as to why it's broken and resolve
it there.

It is caused by this line in subiquity
https://github.com/canonical/subiquity/blob/46f671d14d57a5da6bc3d60b1da6715b43954f0d/bin/subiquity-service#L11

It's due to PIO_FONTX ioctl removed from kernel since 5.12
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff2047fb755d4415ec3c70ac799889371151796d

In 2.4.5 of kbd which provide setfont in user space, they already switched over to use KDFONTOP only.

### REPRODUCER STEPS ###

# install libvirt
sudo apt install qemu qemu-kvm libvirt-clients libvirt-daemon-system virtinst bridge-utils

sudo systemctl enable libvirtd
sudo systemctl start libvirtd

# check libvirtd process is running
virsh
virsh list

# get iso
wget https://releases.ubuntu.com/22.04/ubuntu-22.04.1-live-server-amd64.iso

# install vm
sudo virt-install --cdrom='./ubuntu-22.04.1-live-server-amd64.iso' --name=setfont-repo --vcpus=2 --memory=2048 --disk size=20 --serial pty --graphics none --boot=uefi --debug

# you can either do the full install,
the error will be in the /var/log/installer.log file

# or on the first page of the installer press Tab-> go to Help, -> Shell
and cd /var/log/
grep setfont* syslog

# to show error message cd to
/snap/subiquity/3698

#execute
setfont $SNAP/subiquity.psf

# error
root@ubuntu-server:/snap/subiquity/3698# setfont $SNAP/subiquity.psf
setfont: ERROR kdfontop.c:266 put_font_piofontx: ioctl(PIO_FONTX): 512,8x16: failed: Inappropriate ioctl for device

# grep
grep setfont* syslog
Nov 14 18:22:11 ubuntu-server console-setup.sh[1107]: setfont: ERROR kdfontop.c:266 put_font_piofontx: ioctl(PIO_FONTX): 512,8x16: failed: Inappropriate ioctl for device
Nov 14 18:22:29 ubuntu-server subiquity.subiquity-service[1878]: setfont: ERROR kdfontop.c:266 put_font_piofontx: ioctl(PIO_FONTX): 512,8x16: failed: Inappropriate ioctl for device