Date: Mon, 13 Nov 1995 08:11:27 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: Diffs to the dump utility, rewritten with respect to your comments Message-ID: <199511130711.IAA24778@uriah.heep.sax.de> In-Reply-To: <199511122336.KAA27739@godzilla.zeta.org.au> from "Bruce Evans" at Nov 13, 95 10:36:35 am
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As Bruce Evans wrote: > > >Do you know how to check a dump w/o actually restoring to disk and > >comparing files? I was thinking of adding an option to restore to > > I refuse to use cpio or dump because of the lack of such a feature. > I depend on tar's `d' option to check all major backups. It should actually not be a big problem to add this feature to restore, provided that the file system in question is actually mounted. (Remember, dump does also work on an unmounted file system.) One should care for two details: . what's the most effective method to compare two files -- or should checksumming be used? . restore should remember all i-nodes that have already been checked, so checking a large file with multiple links has to be done once only -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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