[Bug 2036192] [NEW] Ubuntu 23.10 armhf ubuntu-cpc cloud image builds failing

[Philip Roche]

Public bug reported:

With the introduction of the 6.5 kernel for mantic two days ago we are
seeing image build failures on the armhf builds.

cloud image builds for mantic for armhf following the roll to 6.5 kernel
started to fail.

Recent build failures @
https://launchpad.net/~cloudware/+livefs/ubuntu/mantic/cpc/+build/496872
and
https://launchpad.net/~cloudware/+livefs/ubuntu/mantic/cpc/+build/497411
(only viewable by Canonical Cloudware team) with failure `No kernel
output for generic-lpae!` as a result of running

```
KVERS="$( (cd "binary/$INITFS"; ls vmlinu?-* 2>/dev/null || true) | (fgrep -v .efi || true) | sed -n "s/^vmlinu.-\\([^-]*-[^-]*-$FLAVOUR\\)$/\\1/p" )"
	if [ -z "$KVERS" ]; then
```

- see https://git.launchpad.net/livecd-rootfs/tree/live-
build/auto/build#n643

Introduced in the 6.4 kernel and therefore now also in 6.5 there is no
generic-lpae flavor anymore. it's just generic now.

It appears we have code @ https://git.launchpad.net/livecd-
rootfs/tree/live-build/auto/build#n615 which sets the flavour for armhf
to`generic-lpae` but others are `generic`.This can now be dropped for
mantic+

All base mantic cloud image builds will fail to publish until this is
resolved.

** Affects: livecd-rootfs (Ubuntu)
     Importance: Undecided
     Assignee: Philip Roche (philroche)
         Status: New

** Changed in: livecd-rootfs (Ubuntu)
     Assignee: (unassigned) => Philip Roche (philroche)

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https://bugs.launchpad.net/bugs/2036192

Title:
  Ubuntu 23.10 armhf ubuntu-cpc cloud image builds failing

Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  With the introduction of the 6.5 kernel for mantic two days ago we are
  seeing image build failures on the armhf builds.

  cloud image builds for mantic for armhf following the roll to 6.5
  kernel started to fail.

  Recent build failures @
  https://launchpad.net/~cloudware/+livefs/ubuntu/mantic/cpc/+build/496872
  and
  https://launchpad.net/~cloudware/+livefs/ubuntu/mantic/cpc/+build/497411
  (only viewable by Canonical Cloudware team) with failure `No kernel
  output for generic-lpae!` as a result of running

  ```
  KVERS="$( (cd "binary/$INITFS"; ls vmlinu?-* 2>/dev/null || true) | (fgrep -v .efi || true) | sed -n "s/^vmlinu.-\\([^-]*-[^-]*-$FLAVOUR\\)$/\\1/p" )"
  	if [ -z "$KVERS" ]; then
  ```

  - see https://git.launchpad.net/livecd-rootfs/tree/live-
  build/auto/build#n643

  Introduced in the 6.4 kernel and therefore now also in 6.5 there is no
  generic-lpae flavor anymore. it's just generic now.

  It appears we have code @ https://git.launchpad.net/livecd-
  rootfs/tree/live-build/auto/build#n615 which sets the flavour for
  armhf to`generic-lpae` but others are `generic`.This can now be
  dropped for mantic+

  All base mantic cloud image builds will fail to publish until this is
  resolved.

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