Date: Thu, 2 Dec 2004 07:54:19 -0600 From: "Jaime Bozza" <jbozza@thinkburst.com> To: "Nick Barnes" <Nick.Barnes@pobox.com>, "Ken Smith" <kensmith@cse.Buffalo.EDU> Cc: freebsd-stable@freebsd.org Subject: RE: 4.x can't read 5.x dump? Message-ID: <E5797C35DEFA014A96C2171380F0EEE454CDB7@bacchus.ThinkBurstMedia.local>
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>There's no theoretical reason why the formats used by dump and >restore shouldn't be forward and backward compatible, allowing >an older restore (to an older filesystem type) to pick out the >parts of the dump which make sense to it while ignoring parts >which it doesn't understand. > >But they aren't, so it can't, so you're out of luck. This is a pretty interesting issue that I didn't realize. I've regularly restored dumps from a Solaris 8 machine to my FreeBSD 4.x machines. (We had data volumes on some old Solaris machines that I replaced with FreeBSD.) I guess FreeBSD and Solaris volumes are similar enough that the restore just worked. Jaime Bozza
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