TiVo Community Forums Archives - Restore failed target drive too small

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Restore failed target drive too small
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Posted by: 2silver

Hi,
I am trying to upgrade my tomspon pvr10uk with a maxtor 120gb disk. I have created an image of my orginal disk with no problems ( following hinsdale) put this on the 120gb disk ok. Tested it in tivo that works. Put it back in the pc to do a mfsbackup -Tao - /dev/hdc |mfsrestore -s 127 -xzpi - /dev/hda I then get the error Restore failed first target drive too small.

I have a dell dimension 8100 and have tried turning off auto detect etc but to no avail.
What should I do...
Thanks Silver

Posted by: Robert S

The TiVo has probably locked the drive.

You need to use qunlock to unlock it, but be VERY CAREFUL! If you run qunlock on the drive while it is not locked, you'll never be able to get back into that drive.

Posted by: 2silver

Doesn't the hinsdale disk auto qunlock the disk?? I guess if I could use fdsik under msdos to check if the disk q locked??

Posted by: Robert S

If the BIOS reports the drive is 10Mb, then it's locked.

The CD checks the drive ID to verify that it's a QUANTUM drive before it unlocks it. The current Maxtor drives have the Quantum firmware, but a MAXTOR ID string, so although the locking mechanism is the same, the kernel on the CD won't unlock them.

qunlock works nicely AS LONG AS THE DRIVE IS LOCKED. If the drive isn't locked, the firmware will be destroyed.

Posted by: 2silver

Unfortunately my dell bios doesn't actually report the drive size as at all. I will probably try and restore the backup I have on my fat 32 partition as if that doesn't work like it did before it must be qlocked..

Posted by: Robert S

In that case, check the Linux boot log:

dmesg | grep hd

Posted by: 2silver

Thanks, its all completed now...

The drive recognition in the linux boot had the 10 meg, although I had been scrolling back through the boot log (ala hinsdale) I had only seen the line reporting the drive id not the line a few below reporting 10 megs.

Once I saw that did the qunlock, I was very cautious about doing this because of the chance of recking the drive. It would seem Tivo also locks the drive every time..

I also now have a backup cd...

Thanks again....