February 14, 2016

Lab 10.2 Debian 8 don't ask me any password

Hello

I did the lab 10.2 just as it is explained but when I reboot my Debian 8 it don't ask any password for my swap partition.

This is what I did:

$ cat /proc/swaps
Filename Type Size Used Priority
/dev/sda5 partition 4193776 0 -1
$ sudo swapoff /dev/sda5
$ sudo cryptsetup luksFormat --cipher aes /dev/sda5
$ sudo cryptsetup luksOpen /dev/sda5 swapcrypt
$ sudo mkswap /dev/mapper/swapcrypt
$ sudo swapon /dev/mapper/swapcrypt
$ cat /proc/swaps
Filename Type Size Used Priority
/dev/dm-0 partition 265212 0 -1
$ sudo dmsetup info /dev/dm-0
Name: swapcrypt
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 2
Event number: 0
Major, minor: 254, 0
Number of targets: 1
UUID: CRYPT-PLAIN-swapcrypt
$ sudo nano /etc/crypttab
swapcrypt /dev/sda5 /dev/urandom swap,cipher=aes-cbc-essiv:sha256,size=256
$ sudo nano /etc/fstab
/dev/mapper/swapcrypt none swap defaults 0 0
$ sudo reboot
...
$ cat /proc/swaps
Filename Type Size Used Priority
/dev/dm-0 partition 265212 0 -1
$ cat /proc/meminfo | grep Swap
SwapCached: 0 kB
SwapTotal: 265212 kB
SwapFree: 265212 kB

The pass is only asked when I did `sudo cryptsetup luksOpen /dev/sda5 swapcrypt` but no when debian reboot

Click Here!