Dualboot: SL6.2 and Debian6.0 squeeze

[Mumrik]

Hello)

I'm trying to recover Debian which was failed after the SL's installing. At first it was only SL in the GRUB menu. I edited the grub.conf and now it's two systems in menu, but it can't boot Debian.

Error 17 : Cannot mount selected partition

Why?

Disks:

QUOTE

Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xadddaddd   Device Boot      Start        End      Blocks  Id  System /dev/sda1  *          1        3697    29690880  83  Linux /dev/sda2            3825      38914  281853545+  f  W95 Ext'd (LBA) /dev/sda3            3697        3824    1024000  82  Linux swap / Solaris /dev/sda5            3825      29932  209712478+  83  Linux /dev/sda6          29933      32422    19999744  83  Linux /dev/sda7          32423      32671    1998848  82  Linux swap / Solaris /dev/sda8          32671      37608    39654400  83  Linux /dev/sda9          37608      38914    10484736  83  Linux Partition table entries are not in disk order Disk /dev/sdb: 2087 MB, 2087976960 bytes 28 heads, 27 sectors/track, 5394 cylinders Units = cylinders of 756 * 512 = 387072 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x26c7631d   Device Boot      Start        End      Blocks  Id  System /dev/sdb1              1        5395    2038921+  b  W95 FAT32

config file:

CODE

# grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE:  You do not have a /boot partition.  This means that #          all kernel and initrd paths are relative to /, eg. #          root (hd0,0) #          kernel /boot/vmlinuz-version ro root=/dev/sda1 #          initrd /boot/initrd-[generic-]version.img #boot=/dev/sda default=0 timeout=15 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title Scientific Linux (2.6.32-220.el6.i686) root (hd0,0) kernel /boot/vmlinuz-2.6.32-220.el6.i686 ro root=UUID=b3b361c3-0671-45b1-b1b2-321fd32bb1ac rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM initrd /boot/initramfs-2.6.32-220.el6.i686.img title Debian 6.0.3 (6.0.3)        root (hd0,6) search --no-floppy --fs-uuid --set f827fa87-25bb-4a24-87ed-cb5250298405 echo 'Loading Linux 2.6.32-5-686 ...' kernel /boot/vmlinuz-2.6.32-5-686 root=UUID=f827fa87-25bb-4a24-87ed-cb5250298405 ro  quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.32-5-686

[AndrewSerk]

Hi Mumrik and welcome to SLF,

The first thing I would try to correct the issue is replace the root=UUID with "root=/dev/sd?"the device location in grub.conf and see if that helps.

[Mumrik]

Hi. Thanks for help!
I made a mistake in the grub.conf:

QUOTE

root (hd0,6)

/dev/sda6 => (hd0,5)

But, when I correct it and replace root=UUID with root=/dev/sd6:

QUOTE

Error 13 : Invalid or unsupported executable format This error is returned if the kernel image being loaded is not recognized as Multiboot or one of the supported native formats (Linux zImage or bzImage, FreeBSD, or NetBSD).

[U308]

Use the blkid command to see if the UUID is correct.
#blkid /dev/sda6

[Mumrik]

Yes, UUID is correct. I can't understand, what's problem.

This is Debian's grub.cfg:

QUOTE

# # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then   load_env fi set default="0" if [ "${prev_saved_entry}" ]; then   set saved_entry="${prev_saved_entry}"   save_env saved_entry   set prev_saved_entry=   save_env prev_saved_entry   set boot_once=true fi function savedefault {   if [ -z "${boot_once}" ]; then     saved_entry="${chosen}"     save_env saved_entry   fi } function load_video {   insmod vbe   insmod vga   insmod video_bochs   insmod video_cirrus } insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set f827fa87-25bb-4a24-87ed-cb5250298405 if loadfont /usr/share/grub/unicode.pf2 ; then   set gfxmode=640x480   load_video   insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set f827fa87-25bb-4a24-87ed-cb5250298405 set locale_dir=($root)/boot/grub/locale set lang=ru insmod gettext set timeout=5 ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=cyan/blue set menu_color_highlight=white/blue ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-686' --class debian --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set f827fa87-25bb-4a24-87ed-cb5250298405 echo 'Loading Linux 2.6.32-5-686 ...' linux /boot/vmlinuz-2.6.32-5-686 root=UUID=f827fa87-25bb-4a24-87ed-cb5250298405 ro  quiet echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.32-5-686 } menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-686 (recovery mode)' --class debian --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set f827fa87-25bb-4a24-87ed-cb5250298405 echo 'Loading Linux 2.6.32-5-686 ...' linux /boot/vmlinuz-2.6.32-5-686 root=UUID=f827fa87-25bb-4a24-87ed-cb5250298405 ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.32-5-686 } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/30_os-prober ### ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/30_otheros ### # This entry automatically added by the Debian installer for a non-linux OS # on /dev/sda1 menuentry "Windows Vista (loader)" { set root=(hd0,msdos1) search --no-floppy --fs-uuid --set 1074434a744331b0 chainloader +1 } # This entry automatically added by the Debian installer for an existing # linux installation on /dev/sda9. menuentry "Debian 6.0.3 (6.0.3) (on /dev/sda9)" { set root=(hd0,msdos9) search --no-floppy --fs-uuid --set 29d1f001-b880-4684-b7b9-ed5f758c0897 linux /boot/vmlinuz-2.6.32-5-686 root=/dev/sda9 initrd /boot/initrd.img-2.6.32-5-686 } ### END /etc/grub.d/30_otheros ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries.  Simply type the # menu entries you want to add after this comment.  Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ### ### BEGIN /etc/grub.d/41_custom ### if [ -f  $prefix/custom.cfg ]; then   source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ###

[U308]

As far as I know the old grub (grub legacy) cannot boot grub2 based OS. I had this before and the solution was to simply chainload from the old grub. So, one would need to add something like:-

title Debian
root (hd0,5)
chainloader +1

to menu.lst

Your Debian bootloader should be installed to root (/) and not to Mbr.

Have look at this: http://bootinfoscript.sourceforge.net/
I find it rather useful.