Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Duplicate Flash drive
Date: Sun, 13 Sep 2009 15:48:30
Message-Id: 20090913164822.5a70d636@zaphod.digimed.co.uk
In Reply to: Re: [gentoo-user] Duplicate Flash drive by Dirk Heinrichs
1 On Sun, 13 Sep 2009 09:13:21 +0200, Dirk Heinrichs wrote:
2
3 > You can then first take an image of the partition:
4 >
5 > dd if=/dev/sda1 of=firewall.img
6 >
7 > This image can then be mounted and modified as needed:
8 >
9 > mkdir /mnt/firewall
10 > mount -t ext2 -oloop firewall.img /mnt/firewall
11 > [do modifications inside /mnt/firewall]
12 > umount /mnt/firewall
13 >
14 > then write it back to as many other CF cards you need:
15 >
16 > dd if=firewall.img of=/dev/sdX1 (replace X as appropriate)
17 >
18 > There should also be a possibility to copy the MBR with dd, something
19 > like
20 >
21 > dd if=/dev/sda of=mbr.img count=512 (not sure about the count value,
22 > though).
23 >
24 > and write it back with
25 >
26 > dd if=mbr.img of=/dev/sda.
27 >
28 > The only thing left is the automatic partitioning.
29
30 Alternatively, set everything up as you need to start with, then dd the
31 entire device, including partitioning and bootloader, with
32
33 dd if=/dev/sda of=firewall.img
34
35 If you need to make changes to network or other settings for each setup,
36 do that after you have copied the image to the new disk.
37
38 --
39 Neil Bothwick
40
41 Microbiology: staph only.

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[gentoo-user] Re: Duplicate Flash drive Grant Edwards <grante@××××.com>