su
[root@localhost sbin]# ./mkbootdisk --device /dev/fd0 2.6.11-1.1369_FC4
Insert a disk in /dev/fd0. Any information on the disk will be lost.
Press <Enter> to continue or ^C to abort:
/tmp/mkbootdisk.En7268: Permission denied
Failed to format /tmp/mkbootdisk.En7268
[root@localhost sbin]# ./mkbootdisk --device /dev/fd1 2.6.11-1.1369_FC4
/dev/fd1 exists but is not a block device.