do-release-upgrade from 12.04 to 14.04 - package linux-firmware 1.127.24 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Theo]

Tried do-release-upgrade from 12.04 to 14.04

Not sure what is going on but doing the following on another login screen indicates that the upgrade has occurred

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS"

Hmm /boot is 100%

apt-get autoremove

failed again after /boot filled up again
manuall removed stuff Eg.
root@host1:/boot# rm initrd.img-3.2.0-75-generic initrd.img-3.2.0-77-generic initrd.img-3.2.0-80-generic initrd.img-3.2.0-83-generic initrd.img-3.2.0-95-generic

repeated apt-get autoremove which just re-creates the above and results in the following

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-3.13.0-145-generic with 1.
dpkg: error processing package initramfs-tools (--configure):
 subprocess installed post-installation script returned error exit status 1
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 linux-image-extra-3.13.0-145-generic
 linux-image-generic
 linux-generic
 linux-image-server
 linux-server
 initramfs-tools
E: Sub-process /usr/bin/dpkg returned an error code (1)

Tried the following

apt-get update (also did that before the do-release-upgrade)
apt-get autoremove

and that worked

rebooting - wish me luck

rebooted

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: linux-firmware 1.127.24
ProcVersionSignature: Ubuntu 3.2.0-126.169-generic 3.2.79
Uname: Linux 3.2.0-126-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.27
Architecture: amd64
Date: Fri Apr 6 16:50:21 2018
Dependencies:

DuplicateSignature: package:linux-firmware:1.127.24:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2014-03-12 (1486 days ago)
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.8
 apt 1.0.1ubuntu2.17
SourcePackage: initramfs-tools
Title: package linux-firmware 1.127.24 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to trusty on 2018-04-06 (0 days ago)

[Theo (launchpad-flame)]

Probably just a case of /boot at 100%

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1746326, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Theo (launchpad-flame)]

Bug https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1746326 does not look like a problem of the /boot filesystem out of space.