grub2 halts on kernel command

[Andi Meier]

I installed ubuntu 9.10 but it hung on boot, no boot loader message, nothing. 
So I grabbed the Super Grub Disk (on USB pen drive) to look
for the culprit.

I cannot get the system to boot, on submitting the "kernel" command, it hangs.

This is what I tried:

---START---OF---GRUB---SESSIONB---

(boot with Super Grub Disk and exit to GRUB command prompt)
grub> dfisklu
1 (hd0,0) fat  1 GB WINDOWS
5 (hd1,4) ext2fs  1 TB
1 (hd2,0) ext2fs  3 GB Ubuntu 9.10 \n \l
1 (hd3,0) ext2fs  3 GB Ubuntu 9.10 \n \l
5 (hd3,4) ext2fs  1 TB

grub> find /vmlinuz
 (hd2,0)
 (hd3,0)

grub> root (hd2,0)
 Filesystem type is ext2fs, partition type 0xfd

grub> kernel /vmlinuz
   [Linux-bzImage, setup=0x3400, size=0x3bef40]

..... then it hangs ...........

---END---OF---GRUB---SESSIONB---



Additional information:
I partitioned my 3 HDDs the same: 4 GB and the remaining 1,5 TB
2 of the 3 4 GB partitions are configured as operating as one RAID1 mirroring 
cluster.
The remaining 4 GB is configured as swap area.
All 3 1,5 TB partitions build a RAID5 device

  - /dev/hda1 ... 4 GB ... RAID1 mirrored root partition (mounted at /)
  - /dev/hda2 ... 1 TB ... RAID5 data area  (mounted at /data)
  - /dev/hdb1 ... 4 GB ... RAID1 mirrored root partition (mounted at /)
  - /dev/hdb2 ... 1 TB ... RAID5 data area  (mounted at /data)
  - /dev/hdc1 ... 4 GB ... Swap area
  - /dev/hdc2 ... 1 TB ... RAID5 data area  (mounted at /data)


Thanx a lot for any useful hints!
Andi