Encrypt swap

sk8harddiefast · Jul 16, 2010

Code:

sudo dd if=/dev/random of=/dev/ad0s1b bs=1m
dd: /dev/ad0s1b: Operation not supported

Any idea?

teckk · Jul 16, 2010

Is /dev/ad0s1b your swap partition

Code:

swapctl -l

I don't know if you have to umount swap to write random to it. Look at

Code:

man swapoff
man swapon

sk8harddiefast · Jul 16, 2010

Is /dev/ad0s1b your swap partition

yeap.
How to use swapon/swapoff?

DutchDaemon · Jul 17, 2010

swapon(8) should contain all the information anyone could give ..

sk8harddiefast · Jul 25, 2010

I did it

This is the steps to encrypt swap with bde.
Boot to single user mode
Run:

Code:

fsck -y
mount -u /
mount -a -t ufs
dd if=/dev/random of=/dev/ad0s1b bs=1m

Where /dev/ad0s1b is your swap partition. Maybe is different in every system.

Code:

ee /etc/fstab

Change from this

Code:

/dev/ad10s1b	        none			swap			sw		0	0

To this

Code:

/dev/ad10s1b[B].bde[/B]	        none			swap			sw		0	0

Code:

ee /etc/rc.conf

and add this line

Code:

gbde_swap_enable="YES"

Reboot and thats it