problems with Kernel Supermount patch
 

I recently upgraded my Suse 9.2 distro with a stock kernel 2.6.9
I patched the stock kernel with the appropriate supermount patch
and i clicked yes to the option that showed up in psuedo filesystems when i ran make xconfig.

I successfully compiled the kernel and copied the bzImage to /boot
and made the Initrd-2.6.9 (I did not copy the System.map file)

However When I go to restart the computer I still see the message
filesystem subfs is not supported by Kernel.

I tried reading the documentation for the supermount patch. However my existing fstab file already has subfs included as a filesystem for both cdrom devices.

I would think once the patch has been applied and kernel has been compiled that the fstab options would enable both my cdroms to automatically mount. However when a cd is entered in dvd rom or cdrecorder nothing is shown in kde or gnome????

I use supermount. The key thing to understand about supermount is that it is actually a fake filesystem that sits on top of the actual file system. This is how my cdrom-drive looks like in /etc/fstab

none /mnt/cdrom supermount dev=/dev/cdrom,fs=auto,--,ro,iocharset=iso8859-1 0 0

none = you don't have to specify a device since supermount requires you to do it again in the options anyway
/mnt/cdrom = Mount point
supermount = filesystem type
dev=/dev/cdrom,fs=auto,--,ro,iocharset=iso8859-1 = the options

dev=/dev/cdrom points to the underlying device.
fs=auto specifies the filesystem of the underlying device of supermount.
-- = a separator that separates options for supermount with options for the underlying file system.
ro,iocharset=iso8859-1 = standard filesystem options.

is it common to get a kernel does not support subfs filesystem when booting up.... but yet supermount works.


Because i compiled the patch in the kernel and recompiled the kernel and on bootup i get the error message kernel does not support subfs filesystem?

I'm not sure that subfs and supermount have anything to do with each other. They are separate solutions to the same problem.

supermount : http://sourceforge.net/projects/supermount-ng

subfs : http://submount.sourceforge.net/

WOW thank you for the clarification


.... Since i had suse 9.2, submount was the program that used to be installed on the system until i upgraded kernel and i guess broke submount's installation.

For some reason in my mind I have subfs being the filesystem for supermount.

The thing that confuses me is that in the supermount readme
mentions the subfs filesystem. So i thought once the kernel was patched and recompiled that the eror message saying "subfs filesyste not supported by kernel will go away."

Problem solved...

I edited Fstab to as per instructions...


Im just curious... if subfs is a kernel module... and only applies to the submount program?

Then howcome the supermount readme mentions subfs, and its options..


Is the subfs mentioned in the Supermount readme referring to the kernel module that has to be installed in order to run submount?