[Bug 619129] [NEW] kernel upgrade does not adjust grub2 default parameter when it is non-zero

[flashydave]

Public bug reported:

I was running a tweaked command line version of  2.6.35-12 to get over bugs in nouveau as a new grub entry.
This required me to set GRUB_DEFAULT=6 in my /etc/defaultgrub

On upgrade  to 2.6.35-14 as part of Maverick updates the new kernel was
"inserted"  and results (either by update-grub or by grub-pc itself
during boot) with the entries (normal and recovery versions) being the
first in the list. GRUB_DEFAULT should have been set to 8 to compensate
for the new entries but it remained at 6 resulting in the system booting
the wrong image upon restart. (It booted memtest86 as it happens!).

Obviously the workaround to get the system working is to interrupt grub
with shift key, select the right kernel and once booted manually update
the default to the required entry (in  my case editing the entry to
point to the new kernel).

It is not reasonable to cope with all possible manual alterations to
grub settings but this one should have been dealt with automatically as
it is 100% deterministic and the consequence of the kernel upgrade
scriplet.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-generic 2.6.35.15.16
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-14.20-generic 2.6.35
Uname: Linux 2.6.35-14-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: I82801BAICH2 [Intel 82801BA-ICH2], device 0: Intel ICH [Intel 82801BA-ICH2]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  dwilliams   1318 F.... xfce4-volumed
                      dwilliams   1326 F.... pulseaudio
                      dwilliams   1369 F.... xfce4-mixer-plu
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801BAICH2'/'Intel 82801BA-ICH2 with AD1885 at irq 17'
   Mixer name	: 'Analog Devices AD1885'
   Components	: 'AC97a:41445360'
   Controls      : 38
   Simple ctrls  : 27
Date: Tue Aug 17 09:58:54 2010
HibernationDevice: RESUME=UUID=fbce8d08-8d33-4e5f-b2f3-346a1028a9b2
InstallationMedia: Xubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100803)
IwConfig:
 lo        no wireless extensions.
 
 eth0      no wireless extensions.
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Hewlett-Packard HP Vectra
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-14-generic root=UUID=053be657-1f44-4636-89c5-2cc550a839ef ro nouveau.modeset=0
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 
SourcePackage: linux
dmi.bios.date: 07/19/2001
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: JA.01.03US
dmi.board.name: HP System Board
dmi.board.vendor: Hewlett-Packard
dmi.board.version: A06
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Version 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrJA.01.03US:bd07/19/2001:svnHewlett-Packard:pnHPVectra:pvrVL420:rvnHewlett-Packard:rnHPSystemBoard:rvrA06:cvnHewlett-Packard:ct3:cvrVersion1.00:
dmi.product.name: HP Vectra
dmi.product.version: VL420
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 kconfig maverick needs-upstream-testing

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kernel upgrade does not adjust grub2 default parameter when it is non-zero
https://bugs.launchpad.net/bugs/619129
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