fdisk cannot display partitions

[beemer]

I just finished cloning a drive from an SD-DVR120 to a 200GB drive, expanding it to use the additional space (thanks, PlainBill, for the tip on that front). However, after using dd to put a killhdinitrd'd kernel on the drive, I tried to mount the root filesystem to begin hacking and was not able to do so. Instead, I got the error message

# mount /dev/hdd7 tivo
mount: special device /dev/hdd7 does not exist

When I tried to print the partition table, I got the following:

# fdisk /dev/hdd
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklab el
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.


The number of cylinders for this disk is set to 24792.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Any guidance on this? Anyone seen this before?

[mike_s]

TiVo doesn't use a DOS partition table, but an Apple one. You need to use pdisk. Do some searching.

[beemer]

I even used pdisk in an earlier post.

I just put Ubuntu linux on a pc at a friend's recommendation, and expected to be able to read the Tivo drive from it. Seems that the kernel doesn't have lba48 enabled. Though I'm not entirely sure how to verify that.

So, using a boot CD, I can run pdisk and see that partition table fine, as well as mount partitions. I just can't do it in Ubuntu (2.6.10-5-386).

Thanks for the response.

[Jamie]

I just can't do it in Ubuntu (2.6.10-5-386).

Sure you can. You just need tivopart (for the revalidate option) and pdisk. You can find both here.