I have a big problem here. I got a My Book World 2 nas device / 2 TB without hdds. I just have some TB Samsung hdds here.
I want to make the new and empty Samsung hdds working in the device.
Is that possible ? Is there a how-to manual i can use for that ?
Please help me !!! Thanks a lot !
omg …. i spend weeks on trying to recover this device - i really need help
I did struggle a bit myself for a couple of days too !! Basically, I had the same symptoms as you. Finally, here is what I did :
Rebuilt from scratch only 1 HDD using more or less christoff howto :
1. MBRs Restauration
dd if=sda_mbr of=/dev/sda bs=512 count=1
2. Partition table Restauration
edit sda_ptable to comment out line of sda4, so it will only create the first 3 partitions
sfdisk /dev/sda < sda_ptable
3. Manually create sda4 partition
Go down to select free space
Use all space
Select "Type" -> fd (Linux Raid autodetect)
Select "Write" and quit
4. SDA1 Restauration
bzip2 -cd sda1_image.bz2 | dd of=/dev/sda1
5. SDA2 Restauration
bzip2 -cd sda2_image.bz2 | dd of=/dev/sda2
6. SDA3 Restauration
bzip2 -cd sda3_image.bz2 | dd of=/dev/sda3
7. Create RAID1 devices (if you want RAID0, you can change later on using the web interface)
modprobe raid1 mknod /dev/md1 b 9 1 mknod /dev/md2 b 9 2 mknod /dev/md3 b 9 3 mknod /dev/md4 b 9 4 mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sda1 missing mdadm --create /dev/md2 --level=1 --raid-devices=2 /dev/sda2 missing mdadm --create /dev/md3 --level=1 --raid-devices=2 /dev/sda3 missing mdadm --create /dev/md4 --level=1 --raid-devices=2 /dev/sda4 missing
8. SDA4 Restauration
mkfs.ext3 /dev/md4 mkdir /media/sda4 mount /dev/md4 /media/sda4 cp SDA4FILE.TAR.gz /media/sda4 cd /media/sda4 tar -xzvf SDA4FILE.TAR.gz rm -R SDA4FILE.TAR.gz cd / umount /dev/md4
9. Remove mdadm.conf (a script will rebuild it at bootup)
mkdir /media/sda1 mount /dev/md1 /media/sda1 rm /media/sda1/etc/mdadm.conf umount /dev/md1
10. Stop RAID
mdadm --stop --scan
11. poweroff computer
12. Install the HDD in slot A of your book and powerup. Blue rings should come up after ~1-2 min. Got to the web inteface. It should say that drive B is failing. Install brand new drive in slot B and reboot the book. After a few min, it should say "synchronising". I am currently at this stage…
Hope this helps.
Thank you this worked fine for me. My new 2T drives are synchronizing now. It took me a few days to discover a catch:
Newer Linux distributions use superblock versions later than 0.9 and this brings an error at step 9.
Use the switch —metadata=0.9 when creating all raids. I used Knoppix 6.4.4 but Ubuntu 10.10 also has this issue. The comands should be:
mdadm —create /dev/md1 —metadata=0.9 —level=1 —raid-devices=2 /dev/sda1 missing
mdadm —create /dev/md2 —metadata=0.9 —level=1 —raid-devices=2 /dev/sda2 missing
mdadm —create /dev/md3 —metadata=0.9 —level=1 —raid-devices=2 /dev/sda3 missing
mdadm —create /dev/md4 —metadata=0.9 —level=1 —raid-devices=2 /dev/sda4 missing
Thank you and good luck to all!
Here are the steps I used that were successful for me back in Dec of 2008. My unit as been rock solid ever since. I used 2 Seagate 500GB drives but hopefully using 2 Samsung drives shouldn't be much different. The tricky part is understanding how the drives handle the SMART commands.