[Bug 1891721] Re: grub-multi-install attempts to mount a non-existing device after migrating to another system

[John Levon]

Can confirm that apt purge of grub packages then install again worked,
though I suspect debconf-set-selections with:

grub-common grub-efi/install_devices_disks_changed  multiselect 
grub-efi-amd64  grub-efi/install_devices_disks_changed  multiselect 
grub-common grub-efi/install_devicesmultiselect /dev/vda1
grub-efi-amd64  grub-efi/install_devicesmultiselect /dev/vda1

might work too

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Title:
  grub-multi-install attempts to mount a non-existing device after
  migrating to another system

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[Bug 1891721] Re: grub-multi-install attempts to mount a non-existing device after migrating to another system

[John Levon]

I saw this issue when switching a KVM guest backend from emulated to
virtio

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https://bugs.launchpad.net/bugs/1891721

Title:
  grub-multi-install attempts to mount a non-existing device after
  migrating to another system

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[Bug 1274908] Re: Consider adding a 'semi automatic' audio change switch to HDMI input.

[John Levon]

Is this just a bug?


Here is the pulseaudio debug I get when inserting my HDMI cable. It can be seen 
it's *trying* to switch over, but the lack of profile? is causing the issue.
4.15.0-54-generic kernel, Ubuntu 18.04, pulseaudio 1:11.1-1ubuntu7.2

An explicit 'pactl set-card-profile 0 output:hdmi-stereo-extra1' works.
Some race issue with setup?

Jul 8 21:51:32 kent gsd-color[1762]: no xrandr-Samsung Electric 
Company-SAMSUNG-16780800 device found: Failed to find output xrandr-Samsung 
Electric Company-SAMSUNG-16780800
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] alsa-util.c: Monitor name in 
ELD info is 'SAMSUNG' (for device=7)
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] module-alsa-card.c: Jack 
'HDMI/DP,pcm=7 Jack' is now plugged in
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] device-port.c: Setting port 
hdmi-output-1 to status yes
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: Trying to switch to port hdmi-output-1
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: Finding best profile for port hdmi-output-1, 
preferred = hdmi-stereo-extra1
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: No suitable profile found
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-stereo-extra1 to availability 
status unknown
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-surround-extra1 to availability 
status unknown
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-surround71-extra1 to 
availability status unknown
Jul 8 21:51:32 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.

Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] alsa-util.c: ELD info empty 
(for device=7)
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] module-alsa-card.c: Jack 
'HDMI/DP,pcm=7 Jack' is now unplugged
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] device-port.c: Setting port 
hdmi-output-1 to status no
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-stereo-extra1 to availability 
status no
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-surround-extra1 to availability 
status no
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-surround71-extra1 to 
availability status no
Jul 8 21:51:44 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:46 kent gsd-color[1762]: no xrandr-Samsung Electric 
Company-SAMSUNG-16780800 device found: Failed to find output xrandr-Samsung 
Electric Company-SAMSUNG-16780800
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] alsa-util.c: Monitor name in 
ELD info is 'SAMSUNG' (for device=7)
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] module-alsa-card.c: Jack 
'HDMI/DP,pcm=7 Jack' is now plugged in
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] device-port.c: Setting port 
hdmi-output-1 to status yes
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: Trying to switch to port hdmi-output-1
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: Finding best profile for port hdmi-output-1, 
preferred = hdmi-stereo-extra1
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] 
module-switch-on-port-available.c: No suitable profile found
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-stereo-extra1 to availability 
status unknown
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] core-subscribe.c: Dropped 
redundant event due to change event.
Jul 8 21:51:46 kent pulseaudio[6907]: [pulseaudio] card.c: Setting card 
alsa_card.pci-_00_1f.3 profile output:hdmi-surround-extra1 to availability 
status unknown
Jul 8