Dominic Marks wrote:
On Sat, 03 Feb 2007 19:43:42 -0500
Sean Bryant <[EMAIL PROTECTED]> wrote:
Several months ago I was using Freesbie 1.x to dd a harddrive across the
network as a drive duplication effort. This worked 7 computers got the
image. I'm trying to do this again so I got the new Freesbie release 2.0
and fired it up across the computers and tried something simple such as:
dd if=/dev/ad0 bs=1m | nc othercomputer 10000 on the image provider
nc -l 10000 | dd of=/dev/ad0 bs=1m on the computer to receive the image.
I received an operation not permitted. My first thought was they must be
mounted. a quick check, and it seems they weren't.
Next, am I really root? And sure enough I was. After a bit of discussion
in #freesbie on freenode got me to set kern.geom.debugflags to 16 and I
was able to write to ad0 like I had previously done. Yet when I tried to
write to an individual slice I was presented with the same error.
Anyone have any clue ? The eventual goal is to have a mass imaging all
at once with dd, nc and tee
Check out G4U (NetBSD based)
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Dominic
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The only problem I can see here is that multiple parallel reads will
have serious performance impacts, thus greatly increasing the cloning of
the disk.
The solution with dd, tee and netcat would just daisy chain the copy
across the network which would be way faster.
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