John R Pierce wrote:
I'm assuming you're using straight ext3 without LVM or raid....
Good point. A while ago I copied an 80 Gb drive to existing partitions
on 120 Gb. The source didn't use LVM, the destination did.
I got it working, but I couldn't describe what I did with any reliability.
I'd probably boot the regular CD into rescue mode, without mounting the
file systems, then partition the new disk to suit (making each partition
at least as large as the original drive, and in the same order, then run
something like....
this assumes new drive is hda, old drive is hdb
mkdir /mnt/src /mnt/dst
for f in 1 2 5 6; do
mount /dev/hdb$f /mnt/src
mount /dev/hda$f /mnt/dst
dump 0f - /mnt/src | (cd /mnt/dst; restore rf - )
umount /mnt/dst /mnt/src
end
mkswap /dev/hda3
mount /dev/hda2 /mnt/dst && mount /dev/hda1 /mnt/dst/boot
chroot /mnt/dst
grub-install /dev/hda
^z
umount /mnt/dsk/boot; umount /mnt/dsk
adjust file and device names to suit. dump to restore like that
creates a very accurate copy of a file system, complete with special
files, links, ACLs, permissions, etc, etc intact.
And presumably, fairly quickly. I've never used dump/restore, but if it
does the obvious and decides which blocks top copy, sorts the list then
copies, it should be quickest of all, regardless of the data content.
now, swap the new drive
(where 1, 2, 5, 6 are your file system partitions, leaving out your swap
which I'm guessing is hda3)
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Cheers
John
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