/sbin/mkswap: Permission Denied

Ikebo · 08-16-2005, 03:02 AM

Creating a 1gig swapfile with the command:

Code:

dd if=/dev/zero of=swapfile bs=1024 count=1M

works to create the file on disk but the command:

Code:

/sbin/mkswap -c swapfile

returns the error:

Code:

swapfile: Permission denied

as root even though I have complete access to read and write to/from the file.

I am running a brand new installation of Fedora Core 4 on an ex2 partition with SELinux enabled and currently no swap space (I didn't create a swap partition hoping to to make a swap file after installation).

Any ideas?

Ikebo · 08-16-2005, 03:50 AM

It appears that using setenforce 0 will allow me to run mkswap and swapon, but even if I add the swapfile to /etc/fstab it will not load the swapfile on boot.

Any ideas there?

Ikebo · 08-16-2005, 05:35 PM

I can't figure this one out. I think its a matter of matching the security contexts of the swapfile and kswapd but I am not sure.

For now I am going to have to rig a user boot script like so:

Code:

setenforce 0
swapon -a
setenforce 1

Any help in this situation would be greatly appreciated.

Ikebo · 08-16-2005, 11:11 PM

After tracking down my AVC error in /var/log/messages I was able to search with a bit more information. I found a bugzilla bug already filed with this problem.

It seems until this bug is fixed, the startup script plan may have to suffice.