Bootable buildd images silent on both graphical and serial console

[Michał Sawicz]

The buildd images:

http://cloud-images.ubuntu.com/daily/server/buildd

Are all silent on both graphical and serial console:

$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.15.0-123-generic root=PARTUUID=ab592e60-38a4-4441-bdc9-81fa55ac7a5f ro quiet splash vt.handoff=1

$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.4.0-53-generic root=PARTUUID=6f81c7ba-8fb3-44d5-ac47-d9f71d4613d2 ro quiet splash

Compare that to a generic cloud image:
BOOT_IMAGE=/boot/vmlinuz-5.4.0-1037-kvm root=PARTUUID=c5a77234-d27c-4c92-b206-69f94a82b3c3 ro console=tty1 console=ttyS0

This makes it much trickier to debug.

[Joshua Powers (powersj)]

Adding livecd-rootfs as this is where I believe this would be changed.

In livecd-rootfs, CPC images get a 50-cloudimg-settings.cfg where GRUB_CMDLINE_LINUX_DEFAULT is set without quiet. Similarly, ubuntu-core does something similar in their hooks.

[Joshua Powers (powersj)]

Investigating your other bug caused me to find:

https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398027

Which will set up a custom grub config without quiet. Looking at a hirsute image, this appears to be the case already. What is remaining is the SRU back to other releases via the following MPs:

xenial
https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398900

bionic
https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398899

focal
https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398898

groovy
https://code.launchpad.net/~codyshepherd/livecd-rootfs/+git/livecd-rootfs/+merge/398897

[Michał Sawicz (saviq)]

Thanks Josh for finding these, I knew something must've been in progress.

[Michał Sawicz (saviq)]

There's one thing I saw, though: the above MPs leave out `console=tty1`, meaning the graphical console will be silent now.

Should I file a separate bug? I wouldn't like this to hold up the existing MPs.