[CentOS] Replacing a hard drive

Wed Mar 14 15:42:12 UTC 2007
Edward Milstein <eddiem5 at yahoo.com>

On Mar 14, 2007, at 9:35 AM, Bowie Bailey wrote:

> I have a CentOS 4.4 system where all of the main filesystems are on a
> single hard drive.  This drive is starting to give some errors, so  
> I got
> a new (larger) drive to replace it with.  What is the easiest way to
> copy my filesystems over to the new drive?
> I considered using dd, but I lose the extra capacity of the new drive
> that way.
> I tried using SystemImager, but it is giving me some errors.
> I think the easiest way may be to boot from the LiveCD, recreate the
> partitions, copy the info with rsync and then fix the boot  
> partition and
> grub.  Any tips or pointers to a good how-to?
> --
> Bowie

Here is what I recently did for a similar operation.

1) Download the system restore iso http://www.sysresccd.org/Main_Page

2) Boot into the sysrescue cd

3) Run partimage against your old disk to save the slices.

4) Partition your new disk as per your old disk (sfdisk -d /dev/disk1  
| sfdisk /dev/disk2)

5) Use partimage to restore backups you just did to the new disk.

6) Remove old disk

7) Remove CD

8) Reboot



PS.  You might need to fix grub if addressing for the new disk  
changed but there are smarter people to comment on that aspect.