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drseergio
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Joined: 28 Sep 2005
Posts: 236
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 Posted: Tue Nov 21, 2006 1:50 pm Post subject: restore dd full drive copy [solved] |
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I have a PC with SATA disk, few hours ago I had to change it to _exactly_ the same PC (a laptop). I booted from gentoo live CD, mounted external USB (reiserfs) and made a full copy by using this:
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dd if=/dev/sda of=/path/linux_backup
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However, I cannot figure out how to restore right now:
dd if=/path/linux_backup of=/dev/sdb (drive name changed for some reason)
it does not seem to restore the partition table. What might be wrong?
Last edited by drseergio on Tue Nov 21, 2006 2:59 pm; edited 1 time in total |
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nephros
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Joined: 07 Feb 2003
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Location: Graz, Austria (Europe - no kangaroos.)
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| Posted: Tue Nov 21, 2006 2:39 pm Post subject: |
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Not sure about your problem, just a hint:
If one of the filesystems you backed up was also reiserfs, DO NOT EVER run any of the reiserfstools against that USB disk.
The tools cannot deal with reiserfs-image-on-reiserfs and will corrupt your filesystem.
You might consider bzipping* (or similar) this image to work around that.
*) should that be bz2ipping or bzip2ing or bzipping2?
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Last edited by nephros on Tue Nov 21, 2006 5:27 pm; edited 1 time in total |
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drseergio
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| Posted: Tue Nov 21, 2006 2:57 pm Post subject: |
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Thanks for help, dunno why the second time everything went okay. Previously only half was copied (for an unknown reason), now everything works.
And yes, I have all reiserfs partitions (except swap, of course). I shouldn't run reiserfs utilities on the image that dd made? |
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timeBandit
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Joined: 31 Dec 2004
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| Posted: Tue Nov 21, 2006 5:16 pm Post subject: |
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| nephros wrote: | You might consider bzipping* (or similar) this image to work around that.
*) should that be bz2ipping or bzip2ing or bzipping2? |
"bzip2-ing." I am answering rhetorical questions today in honor of Voltaire's birthday. 
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Super-short f.g.o checklist: Search first, strip comments, mark solved, help others. |
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nephros
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Posts: 2139
Location: Graz, Austria (Europe - no kangaroos.)
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| Posted: Tue Nov 21, 2006 5:26 pm Post subject: |
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| drseergio wrote: | | I shouldn't run reiserfs utilities on the image that dd made? |
No, you shouldn't run reiser tools on (real) filesystems which contain image-files of a reiser filesystem.
The tools are known to get confused with these, especially fsck.reiserfs --rebuild-tree.
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drseergio
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| Posted: Tue Nov 21, 2006 8:56 pm Post subject: |
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| Okay, I get the point, I will archive them then. |
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