Resizing an existing EXT2 part.

[Y. Benado]

Hi, when i first thought about installing Linux, i gave it 500MB from drive
E: (/dev/hdb) and now, 1.5 years later, i want to resize it to the full
space avail on drive E or just to give it 500mb MORE. how can i do that w/o
removing anything concerning linux.
i have Partition MAgic 4.


thanks,
Yarin
P.s- currently i am running RH 6.0