I'm trying to create a block device file on my floppy drive using the following command:

/bin/mknod /mnt/floppy/dev/fd0 b 2 0

The error I get is as follows:

/bin/mknod: `/mnt/floppy/dev/fd0': Operation not permitted

dev was created earlier but I noticed that I could not modify the group and other permissions for this directory. I can create files in the directory but cannot modify their permissions. I thought I'd mention this problem in case it has any bearing on the mknod problem. Has this got something to do with the way I formatted /dev/fd0 using mke2fs?

Thanks

mknod is used to create nodes in /dev so that the kernel can pass information into userspace. Why are you trying to create a device node on a floppy disk?
As for your problem with permissions in /dev, what distro are you using and are you using udev?

Thanks Andrew...

Turns out that all I needed to do was to reformat the disk and recreate the file system on the floppy. I'm working with a custom linux distro which uses a script to create dev/fd0 on its boot disk. It uses the linux-2.4.18 kernel.