kernel: FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!

[Richard Downer]

Hello all,

Running Ubuntu 5.04 Hoary.

I have an external USB hard drive, which contains 2 FAT partitions. 
When I plug it in, it is detected, and the computer does the necessary
magic to mount the partitions, and GNOME puts up icons and explorer
windows for the two FAT partitions.

However I noticed these error messages in syslog:

Jun  5 12:01:57 localhost kernel: FAT: utf8 is not a recommended IO
charset for FAT filesystems, filesystem will be case sensitive!
Jun  5 12:01:58 localhost kernel: FAT: utf8 is not a recommended IO
charset for FAT filesystems, filesystem will be case sensitive!

Checking with mount, I see that both partitions have these mount options:

type vfat (rw,nosuid,nodev,quiet,uid=1000,gid=1000,umask=077,iocharset=utf8)

Sure enough, there is something funny happening with these partitions
related to case sensitivity (in particular, rsync seemed to get quite
confused when I copied lots of files from a CD-ROM to one of the
partitions.)

Searching Ubuntu Bugzilla for the "utf8 is not a recommended IO
charset" part of the error message reveals nothing....so has anybody
else seen this problem, or is it just me? :-(
How can I override the iocharset used to mount these partitions?

-- 
rd.