Description of problem:

I'm using this machine:

<<<
My primary machine is a desktop machine with a:

    Pentium 4, 2.4 GHz CPU.
    2.5 GB of RAM.
    An ATI Radeon HD 2600 card.
    One 160 GB Hard-disk and two smaller ones of 80 GB or so.
    A 19×´ LCD Screen by ViewSonic.
    A standard built-in ACâ97 sound-card.
>>>

When I boot it from grub2 and using kernel-3.0.0 as installed from my Debian partition I'm getting "Cannot handle kernel" and the system freezes. I think I see the Init process starting there. Kernel "3.0.0-desktop586-0.rc7.2.1.mga2" boots fine. 

My /boot directory is as follows:

<<<<<
shlomif:~$ ls -l /boot/
total 22292
-rw-r--r-- 1 root root     440 Jun 28 05:48 boot.backup.sda
lrwxrwxrwx 1 root root      38 Jul 23 12:39 config -> config-3.0.0-desktop586-0.rc7.2.1.mga2
-rw-r--r-- 1 root root  131629 Jul 15 19:20 config-3.0.0-desktop586-0.rc7.2.1.mga2
-rw-r--r-- 1 root root  131632 Jul 22 13:15 config-3.0.0-desktop586-1.mga2
-rwxr-xr-x 1 root root  535552 Jul 19 17:34 gfxmenu
drwxr-xr-x 2 root root    4096 Jul 23 02:29 grub
-rw------- 1 root root 4289053 Jun 28 20:23 initrd-2.6.38.8-desktop586-2.mga2.img-bak
-rw------- 1 root root 4522829 Jul 19 17:35 initrd-3.0.0-desktop586-0.rc7.2.1.mga2.img
-rw------- 1 root root 4335871 Jul 23 02:29 initrd-3.0.0-desktop586-1.mga2.img
lrwxrwxrwx 1 root root      34 Jul 23 02:29 initrd-desktop586.img -> initrd-3.0.0-desktop586-1.mga2.img
lrwxrwxrwx 1 root root      34 Jul 23 02:29 initrd.img -> initrd-3.0.0-desktop586-1.mga2.img
-rw-r--r-- 1 root root  209298 Jul 15 19:20 symvers-3.0.0-desktop586-0.rc7.2.1.mga2.gz                                                                          
-rw-r--r-- 1 root root  209290 Jul 22 13:15 symvers-3.0.0-desktop586-1.mga2.gz
lrwxrwxrwx 1 root root      42 Jul 16 15:08 System.map -> System.map-3.0.0-desktop586-0.rc7.2.1.mga2
-rw-r--r-- 1 root root 1617170 Jul 15 19:20 System.map-3.0.0-desktop586-0.rc7.2.1.mga2
-rw-r--r-- 1 root root 1617341 Jul 22 13:15 System.map-3.0.0-desktop586-1.mga2
lrwxrwxrwx 1 root root      31 Jul 23 02:29 vmlinuz -> vmlinuz-3.0.0-desktop586-1.mga2
-rw-r--r-- 1 root root 2558960 Jul 15 19:20 vmlinuz-3.0.0-desktop586-0.rc7.2.1.mga2
-rw-r--r-- 1 root root 2559664 Jul 22 13:15 vmlinuz-3.0.0-desktop586-1.mga2
lrwxrwxrwx 1 root root      31 Jul 23 02:29 vmlinuz-desktop586 -> vmlinuz-3.0.0-desktop586-1.mga2
>>>>>

And the grub 2 definitions are:

<<<<<<<<<<<<<<<
menuentry "mageia1" {
  insmod part_msdos
  insmod ext2
  set root=(hd2,msdos1)
  search --no-floppy --fs-uuid --set=root c6376f86-cd7d-4aa6-9e0f-80c19fa11178
  linux /boot/vmlinuz root=UUID=c6376f86-cd7d-4aa6-9e0f-80c19fa11178 radeon.agpmode=-1 radeon.modeset=1
  initrd /boot/initrd.img
}
menuentry "mageia1 nofb" {
  insmod part_msdos
  insmod ext2
  set root=(hd2,msdos1)
  search --no-floppy --fs-uuid --set=root c6376f86-cd7d-4aa6-9e0f-80c19fa11178
  linux /boot/vmlinuz root=UUID=c6376f86-cd7d-4aa6-9e0f-80c19fa11178 vga=normal nofb radeon.agpmode=-1 radeon.modeset=1
  initrd /boot/initrd.img
}
menuentry "mageia1-old" {
  insmod part_msdos
  insmod ext2
  set root=(hd2,msdos1)
  search --no-floppy --fs-uuid --set=root c6376f86-cd7d-4aa6-9e0f-80c19fa11178
  linux /boot/vmlinuz-3.0.0-desktop586-0.rc7.2.1.mga2 root=UUID=c6376f86-cd7d-4aa6-9e0f-80c19fa11178 radeon.agpmode=-1 radeon.modeset=1
  initrd /boot/initrd-3.0.0-desktop586-0.rc7.2.1.mga2.img
}
>>>>>>>>>>>>>>>>>>