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Full Discussion: Copy entire disk in FC3
Operating Systems Linux Copy entire disk in FC3 Post 81902 by Sergiu-IT on Thursday 25th of August 2005 01:31:27 AM
Old 08-25-2005
Quote:
Originally Posted by dangral
I'm running FC3 and I'd like to copy the entire /dev/hda to /dev/hdc, including all the boot info, so that I can boot off of it in case of failure. This will be a one time thing. I'm doing an app upgrade and I'm very afraid the install will go wrong, so I want to be able to quickly be back up in case of failure.
Any ideas?

Both are 10GB drives, but from different manufacturers. I doubt that makes a difference, but I wanted to include that info.
Hi !
I don't think is necesarely to copy the entire disk/partition... a backup will be enough, but if you insist try to do it with dd (man dd). In Linux it should be something like this:

dd if=/dev/hda of=/dev/hdc

I've never done this before, but it should work.
 

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FDFORMAT(8)						     Linux Programmer's Manual						       FDFORMAT(8)

NAME
fdformat - Low-level formats a floppy disk SYNOPSIS
fdformat [-n] device DESCRIPTION
fdformat does a low level format on a floppy disk. device is usually one of the following (for floppy devices, the major = 2, and the minor is shown for informational purposes only): /dev/fd0d360 (minor = 4) /dev/fd0h1200 (minor = 8) /dev/fd0D360 (minor = 12) /dev/fd0H360 (minor = 12) /dev/fd0D720 (minor = 16) /dev/fd0H720 (minor = 16) /dev/fd0h360 (minor = 20) /dev/fd0h720 (minor = 24) /dev/fd0H1440 (minor = 28) /dev/fd1d360 (minor = 5) /dev/fd1h1200 (minor = 9) /dev/fd1D360 (minor = 13) /dev/fd1H360 (minor = 13) /dev/fd1D720 (minor = 17) /dev/fd1H720 (minor = 17) /dev/fd1h360 (minor = 21) /dev/fd1h720 (minor = 25) /dev/fd1H1440 (minor = 29) The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with fdformat when a non-standard format is being used, or if the for- mat has not been autodetected earlier. In this case, use setfdprm(8) to load the disk parameters. OPTIONS
-n No verify. This option will disable the verification that is performed after the format. SEE ALSO
fd(4), setfdprm(8), mkfs(8), emkfs(8) AUTHOR
Werner Almesberger (almesber@nessie.cs.id.ethz.ch) AVAILABILITY
The fdformat command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. Linux 0.99 1 February 1993 FDFORMAT(8)
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