package plymouth 0.8.2-2ubuntu19 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Tommy Tong]

Binary package hint: plymouth

in terminal did sudo ap-get upgrade and got the error

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: plymouth 0.8.2-2ubuntu19
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Architecture: amd64
Date: Thu Mar 24 15:39:46 2011
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
ErrorMessage: subprocess installed post-installation script returned error exit status 1
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110323)
MachineType: Acer Aspire M1100
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
SourcePackage: plymouth
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: package plymouth 0.8.2-2ubuntu19 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: 03/21/2008
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: R02-B3
dmi.board.name: F690GVM
dmi.board.vendor: Acer
dmi.chassis.type: 3
dmi.chassis.vendor: Acer
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrR02-B3:bd03/21/2008:svnAcer:pnAspireM1100:pvrR02-B3:rvnAcer:rnF690GVM:rvr:cvnAcer:ct3:cvr:
dmi.product.name: Aspire M1100
dmi.product.version: R02-B3
dmi.sys.vendor: Acer

[Steve Langasek (vorlon)]

The error in the log is:

Setting up plymouth (0.8.2-2ubuntu19) ...
update-initramfs: deferring update (trigger activated)
lzma: Encoder error: -2147467259
dpkg: error processing plymouth (--configure):
 subprocess installed post-installation script returned error exit status 1

To the best of my knowledge, nothing in plymouth uses lzma. I think this might be a dpkg bug instead.

[Raphaël Hertzog (hertzog)]

While dpkg can throw out errors about decompression, this can only happen during --unpack and not during --configure. The error message is clear, the problem lies in one of the programs executed by the the post-installation script. There's only update-initramfs in there so that must be the culprit. It's also coherent with "initrd=/casper/initrd.lz" which is lzma-compressed.