John Von Essen on 23 Dec 2006 03:31:44 -0000


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[PLUG] directv DVR appliance investigations


Thought this would amuse plug members.

I have directv with their DVR service. The other day the receiver died, and would not startup. I know these units have a hard drive inside with an embedded OS, so my guess was the drive died or their was some corruption preventing it to boot.

I also knew that the original tivo was a linux kernel, so I figured the directv unit might be similair. Goal was to mount it and do an fsck. So I ripped open my dvr unit and started playing around.

Using a gentoo live cd I was able to examine the disk. Indeed it had some bad sectors. But it wasnt a ext linux volume, it was coming up as FAT32.

So.... I connected the dvr's hard drive to a WinXP machine, and the dvr drive came up as D: with a volume label and everything. Did a full Disk Check, and voila - fixed. Installed drive back in DVR unit, and it loaded up. TV works!

Moral of the story. Directv DVR is not based on a linux kernel, as some might think. And if you have it, and it dies. Just through the drive in a PC and do a Disk Check from within MS and force a bad sector scan.

-john
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