Maurice:
Let's try grub again, to install grub to (hd0,5) to be sure it's there, then try a chainloader stanza in the current /boot/grub/menu.lst.
[root@localhost ~]# grub <Enter>
Probing devices to guess BIOS drives. This may take a long time.
GNU GRUB version 0.97 (640K lower / 3072K upper memory)
[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename. ]
grub> find /boot/grub/stage2 <Enter>
find /boot/grub/stage2
(hd0,1)
(hd0,4)
(hd0,5)
grub> root (hd0,5) <Enter>
root (hd0,5)
Filesystem type is ext2fs, partition type 0x83
grub> setup (hd0,5) <Enter>
setup (hd0,5)
Checking if "/boot/grub/stage1" exists... yes
Checking if "/boot/grub/stage2" exists... yes
Checking if "/boot/grub/e2fs_stage1_5" exists... yes
Running "embed /boot/grub/e2fs_stage1_5 (hd0,5)"... failed (this is not fatal)
Running "embed /boot/grub/e2fs_stage1_5 (hd0,5)"... failed (this is not fatal)
Running "install /boot/grub/stage1 (hd0,5) /boot/grub/stage2 p /boot/grub/menu.lst "... succeeded
Done.
If you see the the same results as above, ending with ... succeeded and Done, then;
grub> quit <Enter>
quit
[root@localhost ~]#
Post your results, up to this point, so we can verify that the process was complete, and without errors. Then open your menu.lst to add a new boot stanza;
[root@localhost ~]# kwrite /boot/grub/menu.lst <Enter>
Add this stanza in your menu.lst
title PCLOS-2012-02
root (hd0,5)
chainloader +1
Save the file, then reboot.
Choose PCLOS-2012-02 from the boot menu.
Post your results.