luks¶
installing¶
# yum install cryptsetup-luks
Removes all data:
# cryptsetup -y -v luksFormat /dev/xvdc
# cryptsetup luksOpen /dev/xvdc backup2
# ls -l /dev/mapper/backup2
# cryptsetup -v status
LUKS headers:
# cryptsetup luksDump /dev/xvdc
formatting¶
Zero to hide usage patterns:
# pv -tpreb /dev/zero | dd of=/dev/mapper/backup2 bs=128M
# kill -USR1 PID
# mkfs.ext4 /dev/mapper/backup2
# mkdir /backup2
# mount /dev/mapper/backup2 /backup2
using¶
Umount:
# umount /backup2
# cryptsetup luksClose backup2
Mount:
# cryptsetup luksOpen /dev/xvdc backup2
# mount /dev/mapper/backup2 /backup2