Date: Tue, 6 May 2003 10:30:22 -0700 (PDT) From: Paul English <penglish@hydro.washington.edu> To: freebsd-questions@freebsd.org Subject: Back/restore with dd Message-ID: <20030506102653.E19184-100000@dynamic.hydro.washington.edu>
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So in the process of trying to recover my files, I made a backup copy of a partition using dd. I did: dd if=/dev/ad1s2e of=ad1s2e So I created a file, the size of the partition sitting on another disk area. Now I want to copy that back to another disk partition. I tried just using dd, but that didn't work: dd if=ad1s2e of=/dev/ad1s1e dd if=ad1s2e of=/dev/ad1s1e dd: /dev/ad1s1e: Read-only file system 2+0 records in 1+0 records out 512 bytes transferred in 0.026033 secs (19667 bytes/sec) I have created ad1s1e (which is a different physical disk) as a partition with the same block count as ad1s2e. I used /stand/sysinstall, so it should have had the same defaults for everything, correct? What am I missing? Why would it say read-only file system, and then proceed to transfer only a couple of bytes? Thanks, Paul
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