LVM Verschlüsselung

Install

• apt-get install lvm2

Szenario

• fdisk -l /dev/sdb

Device     Boot    Start      End  Sectors Size Id Type
/dev/sdb1           2048 33556479 33554432  16G 83 Linux
/dev/sdb2       33556480 67108863 33552384  16G 83 Linux

LUKS-Medium erstellen

• cryptsetup luksFormat -c aes-xts-plain64 -s 512 -h sha512 /dev/sdb1

WARNING!
========
This will overwrite data on /dev/sdb1 irrevocably.

Are you sure? (Type uppercase yes): YES
Enter passphrase for /dev/sdb1: 
Verify passphrase: 

LUKS-Medium öffnen mit dem Namen crypt-part1

• cryptsetup luksOpen /dev/sdb1 crypt-part1

Enter passphrase for /dev/sdb1:

Device vorbereiten für LVM

• pvcreate /dev/mapper/crypt-part1

Erstellen der Volumegruppe

• vgcreate vgdata /dev/mapper/crypt-part1

Erstellen der Logical Volumes data und media

• lvcreate -L 7G -n data vgdata

 Logical volume "data" created.

• lvcreate -L 7G -n media vgdata

 Logical volume "media" created.

Formatieren

• mkfs.ext4 /dev/mapper/vgdata-data
• mkfs.ext4 /dev/mapper/vgdata-media

Mountpoints erstellen

• mkdir /mnt/media
• mkdir /mnt/data

Ermitteln der UUID

• blkid /dev/sdb1

/dev/sdb1: UUID="ed724c90-84e3-4236-8417-4fd34c760bdb" TYPE="crypto_LUKS" PARTUUID="068d5994-01"

/etc/crypttab

crypt-part1 UUID=ed724c90-84e3-4236-8417-4fd34c760bdb  none luks