knoppix how i mount the partitions(ext3) in writing mode?

[schreibebrett]

Hello,
I'm using Knoppix 3.8, I will create a backup with partimage. The partition with my ubuntu5.04 is ext3. My second partition is the ext3, too.

How i can mount the partitions in knoppix with writing access?
(please give me an example for the console with the partition hda3

Thank you.

[UnderScore]

sudo mount -t ext3 /dev/hda3 /mnt/hda3