When I type in df -h, I get the free space in all my partitions, except for /home (it does not show on the list). No error messages.

My fstab looks fine.

This is the first time I see myself unable to run a quick check of my home space. The "devices" tool on the panel, which has the same purpose, is also blind to my ;home partition.

All the partitions were formatted as ext3, while my home partition is jfs. Is that maybe the reason why I can't get to see the free space on my partition?

How can I check my free space in this case?

what does you fstab look like?

I've only briefly played with Zenwalk but I do not believe it supports jfs. AFAIK ext2/3, xfs and reiserfs are supported. Was this an existing parititon or was it created when you installed Zenwalk?

In addition to posting your fstab include how your drive(s) are partitioned via the fdisk command.
fdisk -l (that is a small L)

Thanks for the answers.
My fstab:
I created the partitions with GParted before installing Zenwalk. After the installation, the mount type for my /home partition was empty, and I added jfs for home and replaced ntfs with ntfs-3g for /windows. Either way, df keeps neglecting /home.
How can I know if I have to compile the kernel with jfs support?

Either recompile kernel with jfs support or use xfs/ext3/...

Now I see my mistake. Since Slack supports jfs, I assumed that the current Zenwalk does it too. I should have been more careful.
Two more questions:

1. If my current kernel does not support jfs, what driver is letting me use my /home partition as I am currently doing? How come the system is up and runnning nonetheless?
   
2. When I recompile the kernel, I don't want to lose all the nice features Zenwalk already has. How can I make sure all the rest stays the same, after adding the jfs patch?

you have to add jfs support either as module or built-in your "home made" kernel
just install the package kernelsources (eithere by un-blacklisting it in netpkg.conf or downloading and installing it with installpkg or thunar right-click) from zenwalk mirrors and you'll have the default .config

It is just a directory under the root. If you compile jfs support in and reboot with that fstab your user will not have access to the old /home.
Might pay to come up in single user and copy the /home before logging the user on.

Now I'm getting the picture. Thank you all for your help.
I'll recompile and post about it, for the records.

I recompiled the 2.6.22.9 kernel and chose Y (not as module) on jfs on "Filesystems".
I also installed jfsutils.

However, after mount -t jfs /dev/sda10 /mnt/hello

After jfs_fsck /dev/sda10


What am I missing here?

I recompiled several times, either setting the jfs support as a module or as part of the kernel. Every time, it gave me the error messages shown above. Maybe I made a mistake at some point. I'll eventually figure it out. In the meantime, I installed a regular kernel from Slack, with support for jfs already. It's working fine.