package initramfs-tools 0.140ubuntu6 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1

[Jerome]

I don't know

ProblemType: Package
DistroRelease: Ubuntu 21.10
Package: initramfs-tools 0.140ubuntu6
ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13
Uname: Linux 5.13.0-16-generic x86_64
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
CasperMD5CheckResult: pass
Date: Fri Oct 8 12:36:07 2021
ErrorMessage: installed initramfs-tools package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-10-08 (0 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Beta amd64 (20210922)
PackageArchitecture: all
Python3Details: /usr/bin/python3.9, Python 3.9.7, python3-minimal, 3.9.4-1build1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.9ubuntu2
 apt 2.3.9
SourcePackage: initramfs-tools
Title: package initramfs-tools 0.140ubuntu6 failed to install/upgrade: installed initramfs-tools package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sammerjeet Singh Thakur (sammerjeet-singh)]

I don't know much, but this issue affects my Core2Duo E8200 system as well.
Every Ubuntu and it's official flavors fail to install on this C2D E8200 system of mine.
And I am doing fresh/clean install, not upgrades, which also are failing for some people with the same "initramfs-tools error, exit code 1" as can be found on google search

But on my i7 2630qm system, Ubuntu and flavors complete fresh install nicely. No error to be found anywhere. And I have no reason to believe that doing upgrades from previous Ubuntu versions would fail in my Core i7 2630QM system.

I marked another bug (1947854) as this one's duplicate, because I believe the issue to be the same, though that person who filed bug 1947854 has provided lots of logs and files, I believe him to be more of a technical person than I am. What that person (Ymir) is doing is not fresh install but is an upgrade from previous version.

To the bug squashers,
please forgive me for my lack of technical know how and for the lengthy comment.

[Simon J Mudd (sjmudd)]

I have what looks to be a similar issue. I suspect the boot partition may be the problem:

user@host:~$ df -h /boot
Filesystem Size Used Avail Use% Mounted on
bpool/BOOT/ubuntu_ykzcyk 295M 289M 5,5M 99% /boot

user@host:~$ mount | grep -w /
rpool/ROOT/ubuntu_ykzcyk on / type zfs (rw,relatime,xattr,posixacl)

This is with a ZFS root and boot partition.

user@host:~$ zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
bpool 1.88G 1.74G 133M - - 56% 93% 1.00x ONLINE -
rpool 920G 38.7G 881G - - 8% 4% 1.00x ONLINE -

user@host:~$ df -h | grep boot
bpool/BOOT/ubuntu_ykzcyk 295M 289M 5,5M 99% /boot
/dev/nvme0n1p1 511M 15M 497M 3% /boot/efi
user@host:~$

I found a snapshot in the boot dataset and removed it but free space hasn't dropped much.
Perhaps this extra information helps?