What's best way to copy a filesystem? [was: Re: slight
derek at computinginnovations.com
Tue Oct 30 01:04:29 PDT 2007
At 08:45 PM 10/28/2007, Gary Kline wrote:
>On Sun, Oct 28, 2007 at 06:34:22PM -0500, Jon Hamilton wrote:
> > Gary Kline <kline at tao.thought.org>, said on Sun Oct 28, 2007 [03:02:03 PM]:
> > } > At any rate, how do i as root, single user, cp -rp all of /var to
> > } > elsewhere (/storage) and rmdir /var, them mkdir /var and copy
> > } > everything back?? I've forgotten the cpio magic command.
> > } >
> > } The nutshelll of this posting could be: What's the best tool
> > } to copy a /FILESYSTEM to /storage/FILESYSTEM?
> > The best tool is the one you use successfully. If you're really
> talking about
> > a whole filesystem, dump and restore may contain the least surprises in
> > unusual situations:
> > $ newfs /dev/whatever
> > $ mount /dev/whatever /mnt
> > $ cd /dev/whatever
> > $ dump 0af - /old_filesystem | restore -rf -
> > Then delete /mnt/restoresymtable when it's all done.
> > Of course you can use tar, cpio, cpdup if you have it, or even cp. At
> > different points in time historically some of those have had problems with
> > some situations like sparse files, "extra" hard links, symlinks, etc.
> Seems like I'm running into inode problems.... I finally
> tar'd /var to a /temp fs, then forgot to do the newfs. So now
> I've got a fs panic.
> Hope it isn't a bad drive.....
I would run the manufacturer's diagnostics on the drive to be sure. Often
drives will have a media issue SMART doesn't catch.
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