[initramfs-tools] initramfs.conf should be purged at upgrade

[steubens]

Binary package hint: update-manager

compcache in particular; if enabled, causes problems with hibernation and it is non-obvious in any system log as to the cause

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: update-manager 1:0.134.1
ProcVersionSignature: Ubuntu 2.6.32-20.30-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-20-generic i686
NonfreeKernelModules: wl
Architecture: i386
CheckboxSubmission: 12f34cb446e863f8ecab0ad1f83d1e1e
CheckboxSystem: 8c3973413f77007d7b111ca3763f5e51
Date: Tue Apr 13 04:55:31 2010
InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager

[Michael Vogt (mvo)]

Thanks for your bugreport.

I don't think its a good idea to remove this file. Could you please elaborate a bit more what the problem is? Maybe we need some magic inside initramfs-tools to discard certain compcache values or (if its not working at all) just not use it.

[steubens (steubens)]

purge was probably the wrong word due to its use with apt ... but i merely meant replacing the file unconditionally on an upgrade, instead of merging or whatever, specifically so the compcache settings are reset; i would have to spend a bit of time trying to hibernate with arbitrary compcache values to hope to find some rule of thumb, it depends on available swap and memory size, i think its better to just disable it after an upgrade, or set it to some very small number, like clamp it to 10% so the likelyhood of a hibernation failure would be much smaller.

this could even be a regression, because i could hibernate just fine even with crazy compcache settings before i upgraded to lucid