TiVo Community Forums Archives - Ugh?! "block 0 has signature e990 rather than 1492"?!

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Ugh?! "block 0 has signature e990 rather than 1492"?!
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Posted by: dmbfan36_23

I am going to throw my TiVo out the window! Help!

So I have this Series 1 TiVo that was having issues... it's a Philips HDR31202... it had the original Quantum Fireball lct10 30 GB drive in it + a Maxtor 80 GB addin.

When I got it I reimaged it from w/StanSimmons fresh 3.0 image using the MFS Tools CD.... then I rebooted and used Steve Jenkin's CD to get telnet running.... I took it up, set it up and it locked up on me twice during the next 3 hours... so I stripped out the drives and ran PowerMax diags on them....

The Maxtor was failing... time to replace it... no biggie... (so I thought).... I pulled a Western Digital 5400RPM / 2MB cache 40 GB drive out of one of my computers and cleared it....I also decided to clear off the Quantum drive as well (I did this by booting into Win2K with both drives connected... killed their partitions... recreated FAT32 partitions and did a full unconditional format on each)....

I then booted up with the MFS Tools disc and reimaged the drives (from the bare bones image StanSimmons has)....

When I rebooted with Steve Jenkin's disc I was unable to mount /dev/hdc4, hdc7 and hdc9.... I keep getting "must specify the filesystem type". I remembered getting this on hdc4 the first time I imaged the drives, and that was because hdc4 is the inactive partition and doesn't exist.... but I could mount 7 and 9 before.....

(the master - Quantum 30gb is hdc, the slave - WD 40gb is hdd, my CDRom is hda)..... it was at this point that I noticed the following in the boot logs:

hdc: Signature 90e9, be16 Signature e990

16:00 block 0 has signature e990 rather than 1492
unknown partition table

hdd: Signature 9214, be16 Signature 1492

blocks in Map=4
mac st=1 sz=3f name='Apple' t='Apple_partition_map' bim=4
hdd1 mac st=40 ......<snip>...... name='New MFS Application' ......<snip>......
hdd2 mac st=440 ......<snip>...... name='New MFS Media' ......<snip>......
hdd3 mac st=4a8......<snip>...... name = 'Extra' ......<snip>......
hdd4

floppy ......<snip>........ blah blah etc etc etc...

Not only can I not mount these to attempt to enable telnet... but TiVo won't boot either... it just hangs at the Please Wait Tivo is Starting Up screen.... I thought I'd try MakeTivoBootable... but this is a fresh image and I don't know how that'd help me mount these drives..... I ran it from a floppy with:

MakeTivoBootable -d /dev/hdc --pk 6 --ak 3 --bp root=/dev/hda7

but I still can't mount the drives.... How do I un-F this TiVo!?!?

Posted by: Robert S

There's no evidence that there's a TiVo image on the Quantum drive. The A drive should have Signature 1492 and at least 11 partitions listed.

Posted by: dmbfan36_23

Wel I just re-ran mfsrestore... but this time I swapped the drives so that the Quantum was the slave (/dev/hdd) and the WD was the master (/dev/hdc) and the WD took the image! I get the 13 or 14 partitions listed when I boot with Steve Jenkin's boot cd....

but the Quantum comes up as:

hdd Signature 90e9, be16 Signature e990
16:40 block 0 has signature e990 rather than 1492
unknown partition table...

to restore the image I ran:

mfsrestore -s 127 -zxpi /mnt/hdrimage.mfs /dev/hdc /dev/hdd

where /mnt is my CDRom (/dev/hda).

and when it was done is said the pair was created for a total of 66 hours.....

and yes, DMA is off and Byteswapping is on for hdb, hdc and hdd... that's the default boot option on Jenkin's CD

Posted by: dmbfan36_23

is it possible to copy block 0 off the WD 40 GB now? how exactly might I do that?

Posted by: dmbfan36_23

So I got home and threw the drives in the TiVo...... restart loop :-(

Posted by: Robert S

Signature 90e9 definitely isn't a byteswapping issue!

I don't see any evidence that MFS Tools has managed to write anything to the Quantum drive - it looks like it still has the FAT partition (MFS Tools should have over-written that). I haven't seen that one before, I'm afraid.

I suggest you run with just the WD drive for now and try and figure out what's wrong with the Quantum. Given the current HD prices, it might be sensible just to start over with a new drive.