Re: Disk backup
From: Wolfgang Fischer (Wolfgang_.fischer_at_freenet.de)
Date: 08/05/03
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Date: Tue, 05 Aug 2003 10:59:32 +0200
On Mon, 04 Aug 2003 22:59:05 +0000, Troy Kinsella wrote:
> Hi, I was wondering if someone could give me some feedback on the
> following method I used to back up my hard disk on a laptop.
>
> I did this on the destination computer:
>
> # nc -l -p 1010 > /home/blah/laptop.img
>
> I did this command on my source computer (laptop):
>
> # dd if=/dev/hda | bzip2 | nc <dest ip> 1010
>
> This method effectively compressed my 5 gig hard drive into 1.5 gigs on
> the destination computer.
>
> So my question is: is this a logical way of backing up my hard drive?
> Are there anythings I should know about stability using this method? And
> would it be as simple as reversing these commands to restore the
> drive?
Yes. However, you need a bootable CD (i.e. KNOPPIX) on the laptop to do
this.
> I.e.
>
> Laptop:
>
> # dd < nv -l -p 1010 > /dev/hda
>
> Archive comp:
>
> # nc <laptop ip> 1010 < /home/blah/laptop.img
Don't forget to decompress the image.
>
> Is there an easier or more reliable way to do this?
If you use ext2/ext3, you might use dump. Maybe ncftpput and ncftpget on
the laptop and an ftp server on the archive comp are more reliable than nc.
>
> Thanks!
>
> Troy
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