[mythtv-users] Recovering recordings from corrupted partition
Torsten Crass
torsten.crass at eBiology.de
Wed Nov 26 21:25:52 UTC 2008
Hi Jon,
> My suggestion is to go to www.grc.com and buy spinrite6. It's THE hard
> drive recovery tool for anyone that doesn't want to spent a boatload.
> It is reasonably priced (I think $25? it's been so long, I can't
> recall) and I've saved many hard drives from premature data loss with
> it.
thanks for the advice, but from the (little!) information provided by
www.grc.com on what exactly this tool is capable of I got the impression
that spinrite is mainly good for recovering data from physically damaged
sectors. In fact, I began messing around with my hdd because it begun
making funny, clicking noises at certain occasions, but I was able to
recover all but a single one unreadable sector from my 8 GB system
partition using GNU ddrescue. The problem, however, is...
> Also... I gotta ask, cause you asked me not to... how did this
> corruption happen?
...that, in spite of double-checking the command I entered, I ended up
"rescuing" those 8 GB onto the 390 GB recordins partition on the same
drive -- rather than the partition I had prepared especially for this
purpose on some spare drive. So I ended up with a physically (probably)
completely perfect recordings partition which had about 2% of its data
overwritten -- probably including most of the file system's
organisational data. This is why I am looking for a method to carve
stretches of sectors most likely belonging to individual DVB-T mpg files
out of the partition without relying on any ext3 meta data.
Thanks again for your advice, and best regards from Northern Germany --
Torsten
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