Hello. Recently I’ve installed Open Suse 11.3 along with Ubuntu 9.10 on my PC ( made it a dual-boot OS ). This morning while logged in, in Open Suse 11.3, found out that there were important update for kernel in Yast. So, did the update and then required to restart the PC. In the Grub/boot menu, I chose to log-in to Open Suse 11.3, but after a while it returned with " Error 15, file not found ". Luckily I was able to log-in in Ubuntu 9.10. Assumed that Error 15 is always related to misplaced or wrong configuration of Grub in the partition, I did several searching via Google, and found this possible solution HowTo Boot into openSUSE when it won’t Boot from the Grub Code on the Hard Drive . So I tried the " Broken Grub menu: boot to the menu, drop to a console and boot openSUSE direct " method. But rightly after the " find /boot/grub/menu.lst " command as instructed in the solution, it returned with ( hd0,0 ) and ( hd0,4 ). Why there are 2 bootloader in the Grub ? Which bootloader should I choose ? And for convenience, here is my " menu.lst " folder that I get via Terminal in Ubuntu 9.10 :
$ cat /boot/grub/menu.lst
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-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 10
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=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4 ro
default grub root device
e.g. groot=(hd0,0)
groot=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
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
specify if running in Xen domU or have grub detect automatically
update-grub will ignore non-xen kernels when running in domU and vice versa
e.g. indomU=detect
indomU=true
indomU=false
indomU=detect
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 9.10, kernel 2.6.31-22-generic
uuid fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
kernel /boot/vmlinuz-2.6.31-22-generic root=UUID=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4 ro quiet splash
initrd /boot/initrd.img-2.6.31-22-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-22-generic (recovery mode)
uuid fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
kernel /boot/vmlinuz-2.6.31-22-generic root=UUID=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4 ro single
initrd /boot/initrd.img-2.6.31-22-generic
title Ubuntu 9.10, kernel 2.6.28-11-generic
uuid fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4 ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet
title Ubuntu 9.10, kernel 2.6.28-11-generic (recovery mode)
uuid fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4 ro single
initrd /boot/initrd.img-2.6.28-11-generic
title Ubuntu 9.10, memtest86+
uuid fa7f54f8-4cb7-4d31-9836-72d8ccbdc6b4
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 an existing
linux installation on /dev/sda4.
title openSUSE 11.3 - 2.6.34.7-0.3 (on /dev/sda4)
root (hd0,3)
kernel /boot/vmlinuz-2.6.34.7-0.3-default root=/dev/disk/by-id/ata-SAMSUNG_HD502HJ_S20BJ90Z842118-part4 resume=/dev/disk/by-id/ata-SAMSUNG_HD502HJ_S20BJ90Z842118-part3 splash=silent quiet showopts vga=0x317
initrd /boot/initrd-2.6.34.7-0.3-default
savedefault
boot
This entry automatically added by the Debian installer for an existing
linux installation on /dev/sda4.
title Failsafe – openSUSE 11.3 - 2.6.34.7-0.3 (on /dev/sda4)
root (hd0,3)
kernel /boot/vmlinuz-2.6.34.7-0.3-default root=/dev/disk/by-id/ata-SAMSUNG_HD502HJ_S20BJ90Z842118-part4 showopts apm=off noresume nosmp maxcpus=0 edd=off powersaved=off nohz=off highres=off processor.max_cstate=1 nomodeset x11failsafe vga=0x317
initrd /boot/initrd-2.6.34.7-0.3-default
savedefault
boot
Hope, someone willing to help me out. Thanks in advance for any response.