This bug was fixed in the package livecd-rootfs - 25.04.12
---------------
livecd-rootfs (25.04.12) plucky; urgency=medium
* Stop producing a rootfs tarball for the ubuntu-mini-iso builds.
* Move configuration of casper in ubuntu-serve:live builds to a "chroot
early" hook for the installer layer and remove the now unnecessary
update-initramfs from the binary hook that breaks because mkinitramfs
now requires that /sys is mounted. (LP: #2097280)
* Similar changes for ubuntu-mini-iso build.
-- Michael Hudson-Doyle <michael.hud...@ubuntu.com> Wed, 05 Feb 2025
15:26:13 +1300
** Changed in: livecd-rootfs (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/2097280
Title:
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
Status in initramfs-tools package in Ubuntu:
Triaged
Status in livecd-rootfs package in Ubuntu:
Fix Released
Bug description:
In the version of initramfs-tools now in plucky, mkinitramfs fails if
/sys is not mounted. It is unclear if this is a real problem -- it
broke some of our livefs builds but it turns out the update-initramfs
calls were superfluous and could be avoided.
Original description:
The ISO build fails with initramfs-tools 0.145ubuntu1:
```
update-initramfs: Generating /boot/initrd.img-6.12.0-12-generic
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
/usr/sbin/mkinitramfs: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
/usr/share/initramfs-tools/hooks/casper: 122: cannot open
/sys/module/firmware_class/parameters/path: No such file
E: /usr/share/initramfs-tools/hooks/casper failed with return 2.
update-initramfs: failed for /boot/initrd.img-6.12.0-12-generic with 2.
```
Full log:
https://launchpadlibrarian.net/774287312/buildlog_ubuntu_plucky_amd64_ubuntu-
server-live_BUILDING.txt.gz
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