Comment 11 for bug 88147

I tested this again on the Kubuntu 7.04 Beta live CD, and the problem still occurs.

Example copy-command:
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ubuntu@ubuntu:/media$ cp /etc/fstab /media/disk/
cp: cannot create regular file `/media/disk/fstab': Read-only file system

Permissions of the disk directory in /media
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ubuntu@ubuntu:/media$ ls -l
total 16
drwxr-xr-x 9 ubuntu root 16384 1970-01-01 00:00 disk

Result of mount:
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ubuntu@ubuntu:/media$ mount
unionfs on / type unionfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.20-12-generic/volatile type tmpfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
/dev/sdb1 on /media/disk type vfat (rw,noexec,nosuid,nodev,noatime,uid=999,utf8,shortname=lower)

what does the command 'id' return?
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ubuntu@ubuntu:/media$ id
uid=999(ubuntu) gid=999(ubuntu) groups=4(adm),20(dialout),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),110(netdev),111(lpadmin),113(powerdev),114(scanner),117(admin),999(ubuntu)