This is more of a FYI than a request for support...

SLES 11 SP3

EXT3 used for OS, a few other disks used for large volumes, one of the BTRFS I wanted to get rid of and repartition.

Unmounted the BRTFS volume.
Used YAST to delete the BTRFS partition, carving it up into 4 smaller partitions of which 2 of them used for EXT4.

Everything looked fine, BRTFS gone, 2 new EXT4 mounts.

Later rebooted. System boot process stalls during boot indicating a dependent file system could not be mounted. You have entered "Emergency Mode" or some such comes up indicating that after I login I should look at file system journal tools. Login never appear. Same when using the recovery / safe boot option from GRUB. Even trying to boot in single user mode, I get to the point where I can entre root password, but every few characters screen refreshed and I cannot actually login.

After booting into recovery system from DVD, and mounting the EXT3 partition manually, I found in /etc/fstab remnants of BTRFS in it.

Code:
/dev/disk/by-id/scsi-3600508b10010395659503155375a0100-part1 swap                 swap       defaults              0 0
/dev/disk/by-id/scsi-3600508b10010395659503155375a0100-part2 /                    ext3       acl,user_xattr        1 1
UUID=ad9dbd38-415a-456e-93d2-f9028f32fb7f /mnt/data1           btrfs      defaults              0 0
/dev/disk/by-id/scsi-3600508b10010395659503155375a0300-part1 /mnt/data2           ext4       acl,user_xattr        1 2
/dev/disk/by-id/scsi-3600508b10010395659503155375a0200-part4 /mnt/data1           ext4       acl,user_xattr        1 2
First off, the 0 0 makes progress impossible. So its basically a cyanide capsule. Looking an another similar system, the format of the entry is not the same. On removing the line it boots fine.

This was via the curses YAST not YAST2 GUI that changes were made.

-- Bob