OpenSUSE Install :: Booting From Ext4 Fails - SDA2 Is Not Reiserfs

I'm migrating my OpenSuse 11.3 (which was update from 11.2, 11.1 ........ ) to a new hard drive. My partitions were reiserfs and in the migration I'm "converting" them to ext4, the conversion process is simple and it works fine for all of them except the root one:
1) I create a new partition on the new hard disk (bigger than the original one)
2) I format it with ext4
3) I copy all the data with cp -a from the original partition to the new one

I already have all the partitions migrated to the second disk, then I have tried to do it with the root partition:
-I've booted with a system rescue CD and I've done !9 2) and 3) with no problems.
-I've edited and changed al entries in fstab and grub conf (menu.lst) to point the new partitions
-I've reinstalled grub and it seemed It will be no problems booting, but

It begins booting, the grub menu appears, It begins booting the kernel, but suddenly:
waiting for /dev/root to appear: OK
fsck.reiserfs -a /dev/sda2
........
mount -o ro,ad,user_xattr -t reiserfs /dev/root /root
and it fails, because sda2 is not reiserfs, but why does it try to mount it as reiserfs if I'm not saying anywhere it is reiserfs?

This is my fstab:
Code:
#/dev/disk/by-id/ata-ST3160211AS_6PT0V05Y-part2 / reiserfs acl,user_xattr 1 1
/dev/disk/by-id/ata-WDC_WD5000AADS-00S9B0_WD-WCAV91599607-part2 / ext4 acl,user_xattr 1 1
/dev/disk/by-id/ata-WDC_WD5000AADS-00S9B0_WD-WCAV91599607-part1 swap swap defaults 0 0
/dev/disk/by-id/ata-WDC_WD5000AADS-00S9B0_WD-WCAV91599607-part3 /home ext4 defaults 1 0
/dev/disk/by-id/ata-ST3500630A_9QG94AT1-part1 /mnt/backup auto noauto, defaults, users, exec .....

I've booted it also with SuperGrub2 disk and the same thing happened, so I think it's not a grub problem but I don't wknow why it tried to mount the root partition as reiserfs.