[RndTbl] disk cloning
montanaq at gmail.com
Fri Jul 24 07:38:16 CDT 2009
FWIW, we use SuperDuper at work and are happy with it.
On Fri, Jul 24, 2009 at 12:42 AM, Adam Thompson <athompso at athompso.net>wrote:
> On Fri, Jul 24, 2009 at 00:29, Robert Keizer <robert at cluenet.org> wrote:
>> Dan Martin wrote:
>> > On a Unix based system such as the Mac, should file level copies be
>> > adequate?
>> For the most part. Especially if you backup the partition tables too. I
>> recommend rdiff-backup, it works great and can copy locally or to remote
>> sites over ssh.
>> > Any suggestions re how to make a clone of my boot drive would be
>> > appreciated.
>> Is clonezilla what your looking for?
> There are some problems with backing up a Mac (largely thanks to the HFS+
> file system). The problem is very similar to backing up any UNIX filesystem
> that stores additional metadata beyond the basic stat(2) fields. Linux
> ACLs, for example, or even worse, EAs (which are often used to store ACLs)
> are not necessarily backed up correctly by [pick your favorite backup
> tool]. Most versions of GNU tar can backup ext3 and XFS ACLs & EAs, and EAs
> on any filesystem with compatible APIs, but from version to version there
> are various limitations that must be addressed. Many versions of cpio(1)
> don't handle EAs or ACLs. Pax(1) was written to address many of these
> issues but for incomprehensible reasons isn't present on many UNIX systems.
> Anyway, two (dated, but still relevant) articles on Mac backups:
> http://www.bombich.com/software/ccc.html **note that Bombich disagrees
> with the test results in the first two articles.
> Both SuperDuper and CCC are availabe at no charge for personal use... if
> you don't back up your mac already, USE ONE!
> Note also that many external USB & Firewire drives (esp. LaCie
> branded-drives) come with OS X backup software preloaded.
> -Adam Thompson
> <athompso at athompso.net>
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> Roundtable at muug.mb.ca
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