RE: Copy entire hard disk - how ?

From: Otto Haliburton (ottohaliburton_at_comcast.net)
Date: 08/27/03

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    To: <redhat-list@redhat.com>
Date: Wed, 27 Aug 2003 07:16:41 -0500

    Use Parted.

    > -----Original Message-----
    > From: redhat-list-admin@redhat.com [mailto:redhat-list-
    > admin@redhat.com] On Behalf Of Robert C. Paulsen Jr.
    > Sent: Wednesday, August 27, 2003 7:08 AM
    > To: redhat-list@redhat.com
    > Subject: Re: Copy entire hard disk - how ?
    >
    > On Wed, Aug 27, 2003 at 11:39:44AM +0200, Sasa Stupar wrote:
    > > Hi!
    > >
    > > I have for a while installed redhat 8.0. Now I am experiencing some
    > > problems with my hard disk so what I want to do is to copy entire
    > hard
    > > disk to a new one. I don't want to reinstall the system from
    > scratch.
    > > How can I do that ? It is an EIDE HDD.
    > >
    > > Sasa
    >
    > You want to do the copy partition-by-partition. Mount one of the new
    > partitions at some mount point and copy the data from the old to the
    > new. The main trick is to use the "-ax" options on the copy commands.
    > These options cause the copy to...
    >
    > not follow symlinks (copy the link as a link -- don't copy the
    > linked-to file.
    >
    > preserve original files' ownerships, permissions, etc.
    >
    > recursively copy subdirectories
    >
    > *not* recursively copy subdirectories that are mounts of other
    > filesystems (e.g. proc!)
    >
    > So for example if you originally have the following partitions:
    >
    > /dev/hda1 /
    > /dev/hda2 swap
    > /dev/hda3 /boot
    > /dev/hda4 /home
    >
    > Do the following:
    >
    > 1. Make a similar partitioning scheme on the new hard drive
    > (e.g. /dev/hdb).
    >
    > 2. Use mkswap to create the new swapper.
    >
    > 3. Mount and copy the other file systems. For example:
    >
    > mount /dev/hdb1 /mnt
    > cp -ax /* /mnt/
    > umount /mnt
    > mount /dev/hdb3 /mnt
    > cp -ax /boot/* /mnt/
    > umount /mnt
    > mount /dev/hdb4 /mnt
    > cp -ax /home/* /mnt/
    > umount /mnt
    >
    > 4. Fix up the new fstab to point to the new partitions.
    >
    > 5. Fix up either lilo.conf or grub.conf (on the new drive). You
    > may need to look up how to configure whichever of these you are
    > using. Now comes the tricky part -- you need to install the
    > lilo/grub boot loader. The simplest way may be to use chroot.
    > Here is an example for grub:
    >
    > mount /dev/hdb1 /mnt
    > mount /dev/hdb3 /mnt/boot
    > chroot /mnt
    > grub-install
    >
    > Both lilo and grub have command line options that do the
    > equivalent of the chroot for you. I routinely use this with
    > lilo, but for some reason feel more comfortable with the chroot
    > when using grub -- don't know why.
    >
    > WARNING!!! Although I have done the above successfully several times,
    > the above steps are from memory and may be a little off. Read the man
    > pages!
    >
    > Others recommend other techiques using things like cpio/tar.
    >
    > --
    > Robert C. Paulsen, Jr.
    > robert@paulsenonline.net
    >
    >
    > --
    > redhat-list mailing list
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