[Bug 1067899] Re: ubiquity fails installing lubuntu 12.10 ppc

[melchiaros]

[Offtopic]

Good Morning J.-S(when this is correct in your timezone).

To reply to your personal questions:

All issues you are encounter like suspend or backlight or sound or fan
or wireless or ... well, all hardware driver related are primary
problems of the linux kernel.

You have pointed out that there are less problems with kernel 3.2 and
kernel 3.2 based distributions, but even this bugs occures with Ubuntu
12.10.

-> The cause for this is that Ubuntu 12.10 based on kernel 3.5.x and what you obserse are called regression bugs(a bug that is induced by programming activity on further versions and causes functionalities to break that work in a privious version).
Unfortunally this happens from time to time and it seems that it hit the the distance from kernel 3.2 to kernel 3.5 hard as you discribe. There are causes to tell for, but that would overwhelm the frame of a bugreport.

To get this all fixed you do not have to do downgrades. You can do
sepatated bugreports for all this issues, but this is also the drawback
for you on this. Many work and not only with the reporting(report for
linux itself from the computers are affected: ubuntu-bug linux). The
standard workflow is reporting -> asking (you) to install the very
latest kernel from special ppa(manually!), which is in moment
kernel3.7rc1, - > if it do what it should do a kernel bisection - > if
it not do what should report upstream to kernel bugtracker. On linux
bugtracker is also a dropdownfiled for regression bugs.

That for short and simplyfied on this. The special workflow may vary.


As I pointed out this is very elabourious to you(complicated process when you do the first time and takes hours) and you might feel more comfortable with using Ubuntu12.04.1.

On the other hand you are very welcome to do working on the linux
kernel, because there are not so much powerpc people arround and you can
do with your work direct help for this people(and make Linux at whole
better; or not so buggy).

The problems you encounter will not go away(most properly for the most
of them) with the time for Ubuntu12.10 Quantal, because the kernel
version3.5.x will not change in the livetime of it(with the exeption of
patching e.g from bisection -> see above). The next newer kernels will
be incoporated in Ubuntu13.04 development.

As you can see I have marked this as offtopic, because for the most
other readers here, this will be not of interest(save their time).

greetings

melchiaros

Hope my expanations help a bit on your desicion what to do.

[Offtopic]

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https://bugs.launchpad.net/bugs/1067899

Title:
  ubiquity fails installing lubuntu 12.10 ppc

Status in “ubiquity” package in Ubuntu:
  Incomplete

Bug description:
  Putting special boot parameter:
  live video=radeonfb:1440x900-32 at 60

  (sorry i don't have the at sign on my computer because of the not
  finished installation) i succeed in getting correct screen display.
  Then, i start the installer (ubiquity) which apparantly works fine but
  then hangs on a point called 'Hardware Erkennung' (something like
  'Checking hardware' - after an installation of a basic file system).

  This happened today with the daily built 20121017 as well with a daily
  built of 3 days ago.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-17-powerpc-smp 3.5.0-17.28
  ProcVersionSignature: Ubuntu 3.5.0-17.28-powerpc-smp 3.5.5
  Uname: Linux 3.5.0-17-powerpc-smp ppc
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: powerpc
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  CasperVersion: 1.328
  Date: Wed Oct 17 22:50:50 2012
  LiveMediaBuild: Lubuntu 12.10 "Quantal Quetzal" - Release powerpc (20121017)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 ATI Radeon 4e50
  ProcKernelCmdLine: ro ramdisk_size=1048576 file=/cdrom/preseed/username.seed boot=casper quiet splash -- video=radeonfb:1440x9000-32 at 60
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-17-powerpc-smp N/A
   linux-backports-modules-3.5.0-17-powerpc-smp  N/A
   linux-firmware                                1.95
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.6.1-0ubuntu4
  Architecture: amd64
  Casper:
   Generating locales...
     en_US.UTF-8... done
   Generation complete.
   pwconv: failed to change the mode of /etc/passwd- to 0600
  DistroRelease: Ubuntu 12.10
  InstallCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/lubuntu.seed boot=casper  quiet splash -- BOOT_IMAGE=/casper/vmlinuz
  InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Beta amd64+mac (20121007)
  MarkForUpload: True
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Tags:  quantal ubiquity-2.12.8
  Uname: Linux 3.5.0-17-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm avahi cdrom dip disk fuse haldaemon lpadmin plugdev sambashare sudo

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