H.S.Rai wrote:
>I want to replace my old HDD 20 GB with new 40 GB HDD. Old HDD has a
>number of partition and is dual boot. I want to know easiest way to
>copy complete content of all partitions (Linux & Window) on new HDD,
>first by making new HDD as secondry, and them moving it to primary.
>
>I have "mirrordir" installed on my sytsem. Can it do this job? or
>something like "dd"? Do I need to first create all partition on new
>disk of exactly same size or some utility can do all this.
>
There was old discussion regarding this issue. Check the archive
just for a small help
this would do a possible help for you.
You can't dd unless both the hard disks are having same exact physical
geometry.
If you want to then you will have to physically modify the partition
table.(But it is not a good solutions)
Read and understand the implications, make sure you have a perfect match
between the rescue disk and your actual installation.
1. create same set of partitions *not necessarily* the same size
2. then format with any compatible filesystem for each partition that
you are trying to map
Or may be if you don't want separate parition then leave it as one
But you have to fiddle with your fstab and
4. Have your linux CD, boot from your linux CD then go to the
repair/rescue mode
5. check to make sure you can do chroot
6. check to make sure you have access to tar
7. Then now mount all the partitions in their respective places
as an example
src dest
hda hdb
---------------------------------------------------------
hda1 -> /mnt/disk1/ hdb1 -> /mnt/disk2/
hda6 -> /mnt/disk1/var hdb1 -> /mnt/disk2/var
hda7 -> /mnt/disk1/usr hdb1 -> /mnt/disk2/usr
hda8 -> /mnt/disk1/opt hdb1 -> /mnt/disk2/opt
hda9 -> /mnt/disk1/export hdb1 -> /mnt/disk2/export
8. Shadow the filesystem using (cd /mnt/disk1/; tar cf - *) | (cd
/mnt/disk2/; tar xf - *)
9. chroot to /mnt/disk2/
10. Modify lilo/grub config files then install boot loader to the hdb
remove or move hda to somewhere else eand make hdb as hda
There will now data loss. but you may lose access to your syste for a while.
One more suggestion? why do you want to make multiple partitions when
you have only one harddisk
having one single it will probabily increase the performance, but may
waste lots of disk space on high capacity hard disk
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