Not sure where to post this but want to see what's on the new THR22 DirecTV with TiVo DVR's and need some help as things have change so much from my DTiVo days. So far I have been able to dump the partition table.

sudo ./pdisk.x86 /dev/sdb
Edit /dev/sdb -
Command (? for help): p

Partition map (with 512 byte blocks) on '/dev/sdb'
#: type name length base ( size )
1: Apple_partition_map Apple 63 @ 1
2: Version 1 1 @ 2148865904
3: Rsvd 1 @ 2148865905
4: Rsvd 1 @ 2148865906
5: Rsvd 1 @ 2148865907
6: Ext3 mdi 15626240 @ 2148865908 ( 7.5G)
7: Ext2 Devl 524288 @ 2164492148 (256.0M)
8: Swap Linux swap 262144 @ 2165016436 (128.0M)
9: Ext2 /var 524288 @ 2165278580 (256.0M)
10: MFS MFS application region 589824 @ 2172094324 (288.0M)
11: MFS MFS media region 1733755196 @ 2173273972 (826.7G)
12: MFS MFS application region 2 589824 @ 2172684148 (288.0M)
13: MFS MFS media region 2 2148865840 @ 64 ( 1.0T)
14: Ext3 SQLite 6291456 @ 2165802868 ( 3.0G)

Device block size=512, Number of Blocks=3907029168 (1.8T)
DeviceType=0x0, DeviceId=0x0

Command (? for help):