Rsync to spare disk
klemen at eprostor.net
Sat Dec 23 16:46:30 GMT 2006
Matt McCutchen-3 wrote:
> On 12/21/06, klemen <klemen at eprostor.net> wrote:
>> OK, i tryed with simpliest command:
>> dd if=/dev/sd0 of=/dev/sd1/backup
>> and get
>> dd: /dev/sd0: Device busy
>> ps: the os is openbsd
> I'm guessing OpenBSD doesn't let you directly read a block device
> containing a mounted filesystem. To make a raw backup of the main
> disk, you might need to reboot the machine to a live disk, or it might
> be enough to remount the filesystem read-only. Alternatively, you
> could make a file-level backup using rsync while the machine is
> running normally.
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Thanks for all your segestions. I will do file-level backup with rsync.
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