Arch Linux

Wallsy

Member

Registered: 2010-07-28

Posts: 19

Trouble creating encrypted swap

Afternoon all, I am having some difficulty encrypting my swap partition.

Here is my /etc/fstab

  GNU nano 2.2.6              File: /etc/fstab                                  

#
# /etc/fstab: static file system information
#
# <file system> <dir>   <type>  <options>       <dump>  <pass>
tmpfs           /tmp    tmpfs   nodev,nosuid    0       0
UUID=26882eb1-1601-49d7-9cc5-5b30b45a4338 /home ext4 defaults,user_xattr 0 1
/dev/mapper/swap swap swap defaults 0 0
#UUID=4f11f3a5-fa0b-4077-b4f8-e4ba086bee45 swap swap defaults 0 0
UUID=a1127842-f956-499f-bb64-ad9b496209d1 /boot ext2 defaults 0 1
UUID=fd6b16de-7940-4007-a788-12c6dbc29f9b / ext4 defaults 0 1

And here is my /etc/crypttab

# NAME          SOURCE DEVICE           PASSWORD                OPTIONS
#home           /dev/hda4               mypassword
#data1          /dev/hda3               "my \"password\""
#data2          /dev/hda5               /etc/cryptfs.key
#swap           /dev/hdx4               SWAP                    -c aes-cbc-essi$
#vol            /dev/hdb7               ASK
swap /dev/sda2 SWAP "-c aes-xts-plain -h whirlpool -s 512"

When I boot, I get 'Failed to load encypted swap' or something to that effect.  Any ideas?

Cheers,
Wallsy

Gcool

Member

Registered: 2011-08-16

Posts: 1,456

Re: Trouble creating encrypted swap

What do the logs (/var/log/messages.log) say? Also consider using persistent naming in your crypttab.

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Burninate!

Wallsy

Member

Registered: 2010-07-28

Posts: 19

Re: Trouble creating encrypted swap

May 20 17:06:17 localhost kernel: [    5.134512] device-mapper: uevent: version 1.0.3
May 20 17:06:17 localhost kernel: [    5.134697] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
May 20 17:06:17 localhost kernel: [    5.584045] EXT4-fs (sda3): re-mounted. Opts: (null)
May 20 17:06:17 localhost kernel: [    5.740085] EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: user_xattr
May 20 17:06:17 localhost kernel: [    5.774080] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
May 20 17:06:17 localhost kernel: [    5.775144] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)

I was doing everything by UUID earlier, but the same problem was happening so I thought I would change it to see if it worked, which it didn't.

top returns no swap active.

Wallsy

Member

Registered: 2010-07-28

Posts: 19

Re: Trouble creating encrypted swap

Altered fstab and crypttab as follows respectively:

# <file system> <dir>   <type>  <options>       <dump>  <pass>
tmpfs           /tmp    tmpfs   nodev,nosuid    0       0
UUID=26882eb1-1601-49d7-9cc5-5b30b45a4338 /home ext4 defaults,user_xattr 0 1
#/dev/mapper/swap swap swap defaults 0 0
UUID=4f11f3a5-fa0b-4077-b4f8-e4ba086bee45 swap swap defaults 0 0
UUID=a1127842-f956-499f-bb64-ad9b496209d1 /boot ext2 defaults 0 1
UUID=fd6b16de-7940-4007-a788-12c6dbc29f9b / ext4 defaults 0 1

# NAME          SOURCE DEVICE           PASSWORD                OPTIONS
#home           /dev/hda4               mypassword
#data1          /dev/hda3               "my \"password\""
#data2          /dev/hda5               /etc/cryptfs.key
#swap           /dev/hdx4               SWAP                    -c aes-cbc-essi$
#vol            /dev/hdb7               ASK
swap UUID=4f11f3a5-fa0b-4077-b4f8-e4ba086bee45 "-c aes-xts-plain -h whirlpool -$

But to no avail