Dual Booting (2 Linux from Separate Drives) GRUB issue.

[RensoreK]

Hello everyone!

I'm currently using PCLinuxOS and I want to dual boot with Ubuntu. The problem is Ubuntu is already installed on (hdb1 (/root), hdb6(/home)) and PCLinuxOS is on hda2(/root),hda3(/home). Problem is Grub does not see Ubuntu. Even though when I use the SuperGrub disk, it does see the Ubuntu partitions. Do I need to create some complicated /boot partition to make this work? I am entirely lost. Or would I need to somehow edit the Grub menu to find Ubuntu (Seems more logical?) If so, can someone help me get about doing this?

[sandysandy]

post output of sudo fdisk -lu

and gksudo gedit /boot/grub/menu.lst

u will need to add the Ubuntu entry manually to PC linux GRUB or the other way around.


regards

[RensoreK]

fdisk -lu




Disk /dev/hda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/hda1 63 4209029 2104483+ 82 Linux swap / Solaris
/dev/hda2 * 4209030 46154744 20972857+ 83 Linux
/dev/hda3 46154745 312576704 133210980 83 Linux

Disk /dev/hdb: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 63 41849324 20924631 83 Linux
/dev/hdb2 41849325 234436544 96293610 5 Extended
/dev/hdb5 224829738 234436544 4803403+ 82 Linux swap / Solaris
/dev/hdb6 41849451 217295189 87722869+ 83 Linux
/dev/hdb7 217295253 224829674 3767211 82 Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sda: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/sda1 63 625137344 312568641 83 Linux

Disk /dev/sdb: 4102 MB, 4102887936 bytes
127 heads, 62 sectors/track, 1017 cylinders, total 8013453 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 * 62 8007857 4003898 b W95 FAT32


contents of grub


timeout 5
color black/cyan yellow/cyan
gfxmenu (hd0,1)/usr/share/gfxboot/themes/pclinuxos/boot/message
default 0

title PCLinuxOS 2007
kernel (hd0,1)/boot/vmlinuz BOOT_IMAGE=PCLinuxOS_2007 root=/dev/hda2 acpi=on splash=silent vga=788
initrd (hd0,1)/boot/initrd.img

title PCLinuxOS -noframebuffer
kernel (hd0,1)/boot/vmlinuz BOOT_IMAGE=PCLinuxOS_-noframebuffer root=/dev/hda2 acpi=on
initrd (hd0,1)/boot/initrd.img

title PCLinuxOS Failsafe Mode
kernel (hd0,1)/boot/vmlinuz BOOT_IMAGE=PCLinuxOS_Failsafe_Mode root=/dev/hda2 failsafe acpi=on
initrd (hd0,1)/boot/initrd.img

[sandysandy]

first BACKUP menu.lst file

open menu.lst file of Ubuntu and copy the ubuntu entries into menu.lst of PC linux.

or try adding this to menu.lst of PC linux

title Ubuntu 8.04, kernel 2.6.24-16-generic
root (hd1,0)
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=5535979e-6581-4c96-a1b1-13a0bf803445 ro quiet splash
initrd /boot/initrd.img-2.6.24-16-generic
quiet

or

u can copy the PC linux entries into Ubuntu menu.lst and then with super grub disk restore ubuntu's GRUB.

Remember to BACKUP menu.lst FILES
regards

[RensoreK]

sandysandy thanks. I fixed it by booting from the liveCD, copying the menu.lst from ubuntu and pasting it in the primary drives MBR grub (PCLinuxOS), now reads:


title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd1,0)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=9cd41300-5dc0-4adf-b832-d01162224030 ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet