RE: copy a datafile to a raw device

From: Richard Ji <Richard.Ji_at_ztango.com>
Date: Thu, 19 Jun 2003 14:51:04 -0700
Message-ID: <F001.005B5A24.20030619141944@fatcity.com>

You didn't mention what Unix platform you are on. But since a striaght dd didn't work, you need to use seek to skip some blocks.

-----Original Message-----
Sent: Thursday, June 19, 2003 2:55 PM
To: Multiple recipients of list ORACLE-L

hi all:

I need to move a SYSTEM datafile from a filesystem to a raw device. I have shutdown the database, copied the file via

dd if=system of=/dev/raw

renamed the file in the database, but couldn't open the database because of the error: Unknown File Header Version read for file number 1.

I tried another dd:

dd if=system of=/dev/raw obs=32768 (32K is the db block size), but I got the same error. Can anyone see what else could be wrong with my dd command

thanks

Gene

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Author: Richard Ji
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