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2014 Aug 27
1
Copy on write loop block driver
...013 x86_64 x86_64 x86_64 GNU/Linux
I have been running ddrescue for a while and now it is time to check the progress.
I want to take the oldhd.img output from ddrescue and load it to satrt performing recovery (LVM, then filesystem) but I want to do a copy on write with that.
I fetched http://www.atcomputing.nl/Tools/cowloop/packages/cowloop-3.2.0.1.tar.gz, built it
root at localhost ~/cowloop-3.2.0.1
# cowdev -a /root/oldhd.img /root/oldhd.cow
Cannot open /dev/cow/ctl: No such device or address
So I:
root at localhost /dev
# mkdir cow
root at localhost /dev
# cd cow/
root at localhost /dev/co...