package udev 229-4ubuntu21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Stan Wilson]

I can't install updates, use my touchpad or open drop down menu.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: udev 229-4ubuntu21
ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.13
Architecture: amd64
Date: Mon Dec 4 19:56:22 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
Lsusb:
 Bus 002 Device 002: ID 0781:5581 SanDisk Corp. Ultra
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 8087:0a2a Intel Corp.
 Bus 001 Device 002: ID 04f2:b56d Chicony Electronics Co., Ltd
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP ENVY x360 m6 Convertible
ProcKernelCmdLine: file=/cdrom/multiboot/hostname-16.04.3-desktop-amd64/preseed/hostname.seed boot=casper cdrom-detect/try-usb=true persistent persistent-path=/multiboot/hostname-16.04.3-desktop-amd64 noprompt floppy.allowed_drive_mask=0 ignore_uuid live-media-path=/multiboot/hostname-16.04.3-desktop-amd64/casper/ initrd=/multiboot/hostname-16.04.3-desktop-amd64/casper/initrd.lz quiet splash --- maybe-ubiquity
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.24
SourcePackage: systemd
Title: package udev 229-4ubuntu21 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/21/2017
dmi.bios.vendor: Insyde
dmi.bios.version: F.41
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 81AC
dmi.board.vendor: HP
dmi.board.version: 53.27
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 31
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.41:bd08/21/2017:svnHP:pnHPENVYx360m6Convertible:pvrType1ProductConfigId:rvnHP:rn81AC:rvr53.27:cvnHP:ct31:cvrChassisVersion:
dmi.product.name: HP ENVY x360 m6 Convertible
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Dimitri John Ledkov (xnox)]

cp: cannot create regular file '/cdrom/casper/initrd.gz.new': No such file or directory
dpkg: error processing package udev (--configure):
 subprocess installed post-installation script returned error exit status 1

This looks odd... Are you inside a livecd session? Upgrades on livecd are not supported.

[Dimitri John Ledkov (xnox)]

Hm, posibly an apt bug, we should not be upgrading livecd sessions.

[Julian Andres Klode (juliank)]

Well, it was an update-manager update. I'm not sure why the user triggered one, but probably a high-level graphical tool should not allow that. For APT, it does not make sense to prevent people from upgrading itself. That said, livecd tools could create a pre-install hook that fails with "This is a live system, it does not support upgrades"?

[Julian Andres Klode (juliank)]

Marking as Won't Fix for apt. Can fix in update-manager and/or install a hook on the live image that prevents upgrades on live sessions.