Mailinglist Archive: opensuse-factory (1231 mails)

[Josef Reidinger <jreidinger@xxxxxxx>]

Dave Plater wrote:
> Josef Reidinger wrote:
> > Hi,
> > I have question for middle experienced user of opensuse. Often is quite
> > useful for users to have documentation when kernel upgrade fail because
> > bootloader update failed to different reasons. Or also what they need
> > manually edit if something goes bad as in
> > https://bugzilla.novell.com/show_bug.cgi?id=224476. So my question where
> > you expect documentation about this (some howto or FAQ and also describe
> > process what happen during it)? Manpage for update-kernel script? Or
> > some comments in some config file? Please expect that bootloader is not
> > only grub, but also for other architectures (powerLilo etc.).
> > Josef Reidinger,
> > perl-Bootloader maintainer
> >   
> Comments in the config files would be helpful as rescue disks have no
> man pages or other help and that would normally be where you will be
> trying to fix the problem from.
> Regards
> Dave P

Comments in configfile have disadvantage, that it messed that configfile
and cannot be so long. I think e.g. debian menu.lst is good example how
unreadable it can be. But maybe good idea is add to configfile See
section where you specify some plain text file about it.

example debian configfile menu.lst:
# menu.lst - See: grub(Valím oči! Super!, info grub, update-grub(Valím
oči! Super!
#            grub-install(Valím oči! Super!, grub-floppy(Valím oči! Super!,
#            grub-md5-crypt, /usr/share/doc/grub
#            and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from
0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default
entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default      0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the
default entry
# (normally the first entry defined).
timeout      3

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive
editing
# control (menu entry editor and command-line)  and entries protected by the
# command 'lock'
# e.g. password topsecret
#      password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title      Windows 95/98/NT/2000
# root      (hd0,0)
# makeactive
# chainloader   +1
#
# title      Linux
# root      (hd0,1)
# kernel   /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
##      kopt_2_6_8=root=/dev/hdc1 ro
##      kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=4b5235e0-8b0f-4baf-a0a3-d2c55c055f3f ro

## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,2)

## should update-grub create alternative automagic boot options
## e.g. alternative=true
##      alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
##      lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
##      lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##      altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
##      howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
##      memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title      Ubuntu 7.10, kernel 2.6.22-15-generic
root      (hd0,2)
kernel      /boot/vmlinuz-2.6.22-15-generic
root=UUID=4b5235e0-8b0f-4baf-a0a3-d2c55c055f3f ro quiet splash
initrd      /boot/initrd.img-2.6.22-15-generic
quiet

title      Ubuntu 7.10, kernel 2.6.22-15-generic (recovery mode)
root      (hd0,2)
kernel      /boot/vmlinuz-2.6.22-15-generic
root=UUID=4b5235e0-8b0f-4baf-a0a3-d2c55c055f3f ro single
initrd      /boot/initrd.img-2.6.22-15-generic

title      Ubuntu 7.10, kernel 2.6.22-14-generic
root      (hd0,2)
kernel      /boot/vmlinuz-2.6.22-14-generic
root=UUID=4b5235e0-8b0f-4baf-a0a3-d2c55c055f3f ro quiet splash
initrd      /boot/initrd.img-2.6.22-14-generic
quiet

title      Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
root      (hd0,2)
kernel      /boot/vmlinuz-2.6.22-14-generic
root=UUID=4b5235e0-8b0f-4baf-a0a3-d2c55c055f3f ro single
initrd      /boot/initrd.img-2.6.22-14-generic

title      Ubuntu 7.10, memtest86+
root      (hd0,2)
kernel      /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title      Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title      Windows Vista/Longhorn (loader)
root      (hd0,0)
savedefault
makeactive
chainloader   +1


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda2
title      Windows Vista/Longhorn (loader)
root      (hd0,1)
savedefault
makeactive
chainloader   +1

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