[vox-tech] which kernel gets loaded?
Brian Lavender
brian at brie.com
Fri Nov 4 16:55:16 PDT 2011
I upgraded a Debian system from lenny to squeeze, but it doesn't look
like when the new system boots that it gets the kernel parameters I
am passing it. I need to tell it to have more serial console uarts
by appending 8250.nr_uarts=8, but it looks like it is chain loading
grub 1? How do I fix this? I attached menu.lst.
brian
--
Brian Lavender
http://www.brie.com/brian/
"There are two ways of constructing a software design. One way is to
make it so simple that there are obviously no deficiencies. And the other
way is to make it so complicated that there are no obvious deficiencies."
Professor C. A. R. Hoare
The 1980 Turing award lecture
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# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-legacy-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 change this entry to 'saved' 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 5
# 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=/dev/mapper/whitney-root ro
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,0)
## 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
## 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=(single-user) single
# altoptions=(single-user 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 Chainload into GRUB 2
root (hd0,0)
kernel /grub/core.img
title ?????????????????????????????????????????????????????????????????????
root
title When you have verified GRUB 2 works, you can use this command to
root
title complete the upgrade: upgrade-from-grub-legacy
root
title ?????????????????????????????????????????????????????????????????????
root
title Debian GNU/Linux, kernel 2.6.32-5-686
root (hd0,0)
kernel /vmlinuz-2.6.32-5-686 root=/dev/mapper/whitney-root ro quiet 8250.nr_uarts=8
initrd /initrd.img-2.6.32-5-686
title Debian GNU/Linux, kernel 2.6.32-5-686 (single-user mode)
root (hd0,0)
kernel /vmlinuz-2.6.32-5-686 root=/dev/mapper/whitney-root ro single 8250.nr_uarts=8
initrd /initrd.img-2.6.32-5-686
title Debian GNU/Linux, kernel 2.6.26-2-686
root (hd0,0)
kernel /vmlinuz-2.6.26-2-686 root=/dev/mapper/whitney-root ro quiet
initrd /initrd.img-2.6.26-2-686
title Debian GNU/Linux, kernel 2.6.26-2-686 (single-user mode)
root (hd0,0)
kernel /vmlinuz-2.6.26-2-686 root=/dev/mapper/whitney-root ro single
initrd /initrd.img-2.6.26-2-686
### END DEBIAN AUTOMAGIC KERNELS LIST
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