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Re: problem: loop-aes swap partition isn't mounted

I have this problem, too.

The encrypted swap works fine.

The problem is that the linux startup scripts attempt to initialize swap before loading the loop-aes module.

Simply try to execute swapon -a as root after the machine is up and it should work fine.

This could be fixed with some /etc/init.d script dependency stuff, I think..

~ boyd
Boyd Waters


On Sep 13, 2005, at 10:31 AM, Jari Ruusu wrote:

Tobias Walkowiak wrote:
On Mon, Sep 12, 2005 at 05:54:39PM +0300, Jari Ruusu wrote:
It should output "swapon: unable to open loop device %s".
If it doesn't output that, then you are running wrong swapon program.

but it _does_ output that. i'm using the loop-aes-utils package on debian
which has version 2.12p-8

You have correct swapon program in there, good.

the only error message is 'activating swap ... failed' during boot. even
dmesg doesn't say anything about it. and after booting losetup -a doesn't
show any loop.

Max Vozeler wrote:
Indeed, I can reproduce this. I'll investigate and follow up later today.

Encrypted swap on stock kernel.org 2.6.13 works ok here, no udev.

# grep /dev/hda3 /etc/fstab
/dev/hda3 none swap sw,loop=/dev/loop6,encryption=AES128 0 0
# swapon -a -v
loop: loaded (max 8 devices)
Setting up swapspace version 1, size = 177012736 bytes
swapon on /dev/loop6
Adding 172860k swap on /dev/loop6. Priority:-2 extents:1
# losetup -a
/dev/loop6: [0302]:77886 (/dev/hda3) offset=4096 encryption=AES128 multi-key-v3
# cat /proc/swaps
Filename Type Size Used Priority
/dev/loop6 partition 172860 0 -2
# uname -r
2.6.13

Silly check: do you have swap enabled in your kernel config?
CONFIG_SWAP=y

--
Jari Ruusu 1024R/3A220F51 5B 4B F9 BB D3 3F 52 E9 DB 1D EB E3 24 0E A9 DD

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Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/

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