I have a PC with Ubuntu 9.10, XP Home and am now trying to add Slackware 13
I am struggling to get Slackware loadable from Grub as I have /boot on its own partition (I have had problems with booting from JFS in the past)

I have the following disk partitioning

sda1 bootable NTFS (Windows XP)
sda2 ext3 (Ubuntu /boot)
sda5 JFS (Ubuntu root)
sda6 swap
sda7 ext3 (Slackware /boot)
sda8 JFS (Slackware root)

Grub is from Ubuntu
/boot/grub/menu.1st has

title Ubuntu 9.04, kernel 2.6.28-15-generic
uuid 845e15da-d20b-42ee-93bb-a696cf7e3288
kernel /vmlinuz-2.6.28-15-generic root=UUID=5c3c3ba2-54d5-4833-9cd7-61a5a37a1717 ro quiet splash
initrd /initrd.img-2.6.28-15-generic
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 a non-linux OS
# on /dev/sda1
title Microsoft Windows XP Home Edition
rootnoverify (hd0,0)
savedefault
makeactive
chainloader +1

Try adding this to your menu.lst

title Slackware 13.0 (/dev/sda7)
root (hd0,6)
kernel /boot/vmlinuz root=/dev/sda7 ro vga=normal

Tried that and got an Error 15: file not found

Anyway now solved with

title Slackware 13
root (hd0,6)
kernel /vmlinuz root=/dev/sda8 ro vga=normal

as the kernel is at the root of the /boot partition and the real root is on sda8

there is two ways to do this
1. install lilo to root of sda7 using your slackware cd, and then chainload into sda7 from ubuntu grub.
2. back up all the files in sda7 somewhere else, format sda7 to ext3 using ubuntu, restore your files back to sda7, then add slackware grub entry as previously mentioned. may have to use hda7 instead of sda7 in the kernel line

Cheers people,

I installed Slackware 13.0 and for some reason it never installed the boot loader, but left ubuntu's boot loader, so I kinda jimmied my slackware OS boot thing from the ubuntu one, which kinda left everything a little messed up.

Everything's working fine know