Mounting non Debian partitions

[Russ Pitman <russ@tasman.net.au>]

	Have only just managed to install Debian 2.1, after giving up
many times. 	
	Now mostly it all works, all I need to do is hang in there.

	Normally using  redhat, I now need to shift configurations etc
but when in deb. and I try to mount any linux partition that is not
debian, mount balks with this error
			---------
$ mount -t ext2 /dev/hda9 /rh6

EXT2-fs: 03:09: couldn't mount because of unsupported optional
features  
mount: wrong filesystem  etc. etc.
	or too many etc. etc. ( the usual complaint)
			----------
	Working out of redhat there is no problem in mounting other
distributions partitions/filesystems, at least I haven't had any to
date and the result is the same from fstab

	Is this a known problem, will an upgrade fix things. I am
currently using RH 6.2.Have I missed some changes in the ext2 fs?

	All info  appreciated.  	

-- 

		    ----russ----