On 07/06/2012 12:02 PM, Michael Schwendt wrote:
On Fri, 06 Jul 2012 11:22:55 -0400, Jim wrote:
/dev/sdb1 is now a blockwise copy of /dev/sda2
On 05.07.2012, Jim wrote:
There are some important data files I must save off of sda2
Before you start any rescueing, take a full snapshot of the partition,
e.g. "dd if=/dev/sda2 of=/dev/on_an_external_disk"
that is exactly what I did but nothing shows up on /dev/sdb1 external
drive after dd has completed .
That makes no sense. If /dev/sdb1 points at a corrupted filesystem,
above "dd" command will copy the same corrupted filesystem to /dev/sda2.
That's expected and okay, if you only want to keep that one read-only as
a backup of the originally corrupted filesystem. Then you can play with
rescueing sdb1 - but be careful and remember that sda2 is supposed to be
your backup of a corrupted filesystem. Don't mess with that one.
Better would have been to copy sdb1 to an image file instead of another
partition device.
sda2 is the corrupted file system.
I'm trying to send a img of the sda2 to backup hard drive sdb1 .
I' running into a read-only filisystem on sda3 , but :
# mount | grep sda3
/dev/sda3 on / type ext4 (rw,relatime,seclabel,data=ordered)
it say it is rw but when i run the dd command i get a read-only filesystem.
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