Another option might be dd.  I used it when I was setting up a cluster.  I
had all the same brand of disk so that may make a difference.

I used:

dd if=/dev/sda of=/dev/sdb

later,



> -----Original Message-----
> From: Kent Borg [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 09, 2002 10:38 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: replacing my primary hard drive
> 
> 
> On Mon, Sep 09, 2002 at 10:50:32AM -0400, David Yates wrote:
> 
> > My 80 GB primary linux hard drive (dev/hda) containing / , /boot/
> > and swap is dying.  I have purchases a replacement drive of the same
> > size, but made by a different manufactuer.  I am wanting to avoid a
> > reinstall. I need specific instructions for duplicating the old
> > dying hda on to the new drive.
> > I am using the grub boot loader. 
> > Specifically, I need instructions for making the new blank drive
> > identical to the old failing drive and making sure I can boot off of
> > it using grub once the old drive is removed and the new one remains.
> 
> I haven't done this, so I don't have exact instructions.  Someone
> maybe will post more exact instructions, but before following them, I
> suggest you carefully understand what they mean anyway, so in the mean
> time, start firing up some man pages and see if you can make sense of
> the following steps:
> 
>  - Physically install new disk (probably as and IDE slave with old
>    disk as master),
> 
>  - Partition new disk to match partitions of old disk (using fdisk,
>    which will require a bit of learning, the "?" command is useful),
> 
>  - Make new file systems in those partitions to match old 
> (using mke2fs
>    if you are using ext2 or ext3, other for others),
> 
>  - Copy everything over to new disk, partition by partition (using cp
>    with -a switch),
> 
>  - Shutdown, unplug old disk, plug new disk in its place (probably as
>    master now), see if it will boot.
> 
> 
> A few catches:
> 
>  - Some data doesn't like being copied by file-by-file from one disk
>    to another.  Examples are database files and some e-mail server
>    programs' spool files (like qmail), so stop and wonder what such
>    things you might be running and see how they say you should back up
>    and restore their data.  I am pretty sure a stock Red Hat
>    installation used in unelaborated ways, won't have problems, but if
>    you have customized it much, you need to think about your
>    customization.
> 
>  - Disks are pretty cheap these days.  If you are running a recent
>    version of Red Hat, consider getting another 80 GB disk and setting
>    it up with the new one you already have in a software raid 1
>    configuration.  This is a fully redundant configuration where each
>    disk has a complete copy of everything.  Also, raid 1 is faster
>    than a single disk on reading data and no slower than a single disk
>    on writing.  It will protect you in the future.  Yes, it will
>    complicate the steps you need to complete now (roughly: build a
>    single disk version of a dual disk raid 1, copy data across, remove
>    old disk, put in second new disk, partition it for being part of
>    your raid 1, add new disk to array and raid software automatically
>    brings it up to date in background).  You want to put the two raid
>    1 disks on different IDE controllers to get the speed (I share one
>    with my-mostly-idle-CD-ROM for mostly-high-performance, still on
>    the cheap), but most motherboards have two controllers.  For
>    software raid 1 you don't need any special raid hardware.
> 
> 
> Good luck,
> 
> -kb, the Kent who will be watching for reports.
> 
> 
> 
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