Just let me know how to mount /drive1. You can't just mount it with the line you posted for /drive0. There's no /drive1 entry in /etc/fstab or /etc/mtab (error returned from mount).

Well put an entry there.

#

# /etc/fstab

#

# <device>    <mountpoint>   <filesystemtype> <options> <dump> <fsckorder>

/dev/hda5       /               ext2          defaults,ro    1      1

/dev/hda4       /drive0         ext2          defaults,ro    1      1

/dev/hda2       /usr            ext2          defaults,ro    1      1

/dev/hdc4       /drive1         ext2          defaults,ro    1      1

none             /proc          proc          defaults

.
Then you should be able to mount it with that command. If that STILL fails, try this:

/bin/mount -n -o remount,nocheck,ro /dev/hdc4 /drive1

.
Note that drive1 might be hdb4 on yours, it's hdc4 on mine. If so, adjust accordingly.