Newbie help how to enlarge root partition

["John Fleming" <john@wa9als.com>]

I'm the guy that recently dd'd hda (40GB) to hdb (160GB) and then put the 
larger drive in the first position, making it now the new hda.  I knew I 
would then be using only 40GB of the 160GB HDD.  I thought it would be easy 
to enlarge the 40GB root partition, but this newbie is having trouble with 
that.

I tried using a Knoppix live CD and QtParted, but I still couldn't figure 
out to do it - When the root partition was selected, "resize" was not even 
an option (dimmed out).

I've looked at fdisk and parted, but I need help.  Do I need to start over 
copying my 40GB HDD to a properly-partitioned 160GB HDD, or can someone give 
me detailed instructions to expand my 40GB root partition to use the 
available free space on the new drive?

Thanks - My current partitions are shown below.  - John
Debian Sarge


# fdisk /dev/hda

The number of cylinders for this disk is set to 19457.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
  (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/hda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

  Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1        4801    38564001   83  Linux
/dev/hda2            4802        4863      498015    f  W95 Ext'd (LBA)
/dev/hda5            4802        4863      497983+  82  Linux swap / Solaris

Command (m for help):

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