Win XP+Mandriva+Ubuntu

[Ranjya]

My problem is that during boot Mandriva assumes /dev/sda8 as / and takes
about a minute to resume bootstrap.
After Ubuntu install Mandriva was not booting till I edited the
grub.cfg of Ubuntu and pointed the root as /dev/sda6.
This is the present partition status. /dev/sda6 is Mandriva, /dev/sda7 is Ubuntu
Ubuntu was installed last.
[root@localhost ranjit]# fdisk -l

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x61c2fa14

Device Boot Start End Blocks Id System
/dev/sda1 * 1 1305 10482381 7 HPFS/NTFS
/dev/sda2 1306 5642 34836678 f W95 Ext'd (LBA)
/dev/sda5 3408 4623 9767488+ 7 HPFS/NTFS
/dev/sda6 4624 5642 8185086 83 Linux
/dev/sda7 1306 3286 15906816 83 Linux
/dev/sda8 3286 3407 975872 82 Linux swap / Solaris

Partition table entries are not in disk order
[root@localhost ranjit]#

The contents of my /etc/fstab are as follows:-
# Entry for /dev/sda8 :
UUID=1b87c3fa-8f4a-48f8-a054-260121d1f115 / ext4 relatime 1 1
/dev/cdrom /media/cdrom auto umask=0,users,iocharset=utf8,noauto,ro,exec 0 0
# Entry for /dev/sda1 :
UUID=D4A8E79EA8E77D7C /media/win_c ntfs-3g defaults,umask=000 0 0
# Entry for /dev/sda5 :
UUID=9A50F43C50F420A5 /media/win_d ntfs-3g defaults,umask=000 0 0
none /proc proc defaults 0 0
# Entry for /dev/sda7 :
UUID=ee9ae94f-2eef-43d3-a4fd-b49b3f3571aa swap swap defaults 0 0
How to repair the fstab as methinks the uuid's are also not correct
anymore. I dont remember the command to show uuid
regards,
Ranjit.

[doomgiver]

well, if possible, make sda5 as a /boot partition, around 100-200 mb will do the trick.
put all your bootloader in that.

[Ranjya]

Not possible. sda5 is the first extended partition and my NTFS data partition.
Moreover a /boot partition can be made during install only IMHO.

[doomgiver]

dont want to reinstall?
try gparted from a live cd.
but i dunno how to put all bootloaders in a partition after installing.