Hi, I am a newbie to ddrescue, so forgive my ignorance if my questions have a simple and obvious answer.
My daughter's PowerBook has a crashed disk and I tried ddrescue to copy whatever is possible. I took the disk out of the laptop and attached it to a usb-to-ide converter. I am using ddrescue 1.12 on my MacBookPro and tried to copy the 100GB disk to a disk image on a large (500GB) external disk. I stopped diskarbitrationd on my mac to prevent os-x from mounting the inserted defective disk (see http://forum.soft32.com/mac/prevent-automounting-ftopict113266.html http://forum.soft32.com/mac/prevent-automounting-ftopict113266.html ) and entered sudo ddrescue -v /dev/disk3 /Volumes/bigdisk/image.dmg /Volumes/bigdisk/image.log and ddrescue started working - cool! Then some disk I/O errors appeared - I repeatedly disconnected the disk, stopped ddrescue and started over again a few blocks further. After reaching the end of the disk, I started again with sudo ddrescue -v -R -s(some_size) etc and adjusted (some_size) when I had to restart due to I/O errors or the disk simply stopping to respond, all this in order to decrease the total error size. Now my questions: - is what I am doing (aborting and restarting) the right thing when I/O errors appear or when the disk stops working? - every time when I abort (disconnect the disk, interrupt ddrescue), I had to restart my mac (even reset: simple shutdown hangs) because interrupting ddrescue leaves me with a running process (no matter how long I wait) and restarting ddrescue simply does nothing. Can this be avoided? - I noticed that the image size is around 420M when looking at it with ls -l, and it does not change any more. This is very small compared to what I expect (100G). On the other hand, when looking at it with the Finder, sometimes size is 90-something GB, and sometimes also 420M. What's going on here? I stopped working on the disk because I am afraid that what I am doing is useless. Thanks Patrick -- View this message in context: http://old.nabble.com/image-copy-much-smaller-than-disk-size--tp29246039p29246039.html Sent from the Gnu - ddrescue mailing list archive at Nabble.com. _______________________________________________ Bug-ddrescue mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-ddrescue
