Setting up luks encrypted drive to automount
So I'm trying to setup my luks encrypted drive which holds the root partition to automount on server start. I'm having an issue where it doesn't automount and instead prompts for a passphrase.
lsblk Output:
sda5
|_sda5_crypt
|_srv--vg-root lvm /
|_srv--vg-swap_1 lvm [SWAP]
/etc/crypttab:
sda5_crypt UUID=uuid goes here /boot/keyfile luks,discard
/etc/fstab:
/dev/mapper/srv--vg-root / ext4 errors=remount-ro 0 1
Now I know that I'm supposed to create a new entry like
/dev/mapper/sda5_crypt / ext4 defaults 0 2
but my / is already defined in fstab, how do I add the crypt entry to fstab so it knows to mount it so the lvm volume groups can be mounted on boot?
ubuntu luks ubuntu-18.04
asked Jan 16 at 14:59
MekkonMekkon
1
add a comment |
So I'm trying to setup my luks encrypted drive which holds the root partition to automount on server start. I'm having an issue where it doesn't automount and instead prompts for a passphrase.
lsblk Output:
sda5
|_sda5_crypt
|_srv--vg-root lvm /
|_srv--vg-swap_1 lvm [SWAP]
/etc/crypttab:
sda5_crypt UUID=uuid goes here /boot/keyfile luks,discard
/etc/fstab:
/dev/mapper/srv--vg-root / ext4 errors=remount-ro 0 1
Now I know that I'm supposed to create a new entry like
/dev/mapper/sda5_crypt / ext4 defaults 0 2
but my / is already defined in fstab, how do I add the crypt entry to fstab so it knows to mount it so the lvm volume groups can be mounted on boot?
ubuntu luks ubuntu-18.04
asked Jan 16 at 14:59
MekkonMekkon
1
You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58
add a comment |
So I'm trying to setup my luks encrypted drive which holds the root partition to automount on server start. I'm having an issue where it doesn't automount and instead prompts for a passphrase.
lsblk Output:
sda5
|_sda5_crypt
|_srv--vg-root lvm /
|_srv--vg-swap_1 lvm [SWAP]
/etc/crypttab:
sda5_crypt UUID=uuid goes here /boot/keyfile luks,discard
/etc/fstab:
/dev/mapper/srv--vg-root / ext4 errors=remount-ro 0 1
Now I know that I'm supposed to create a new entry like
/dev/mapper/sda5_crypt / ext4 defaults 0 2
but my / is already defined in fstab, how do I add the crypt entry to fstab so it knows to mount it so the lvm volume groups can be mounted on boot?
ubuntu luks ubuntu-18.04
asked Jan 16 at 14:59
MekkonMekkon
1
So I'm trying to setup my luks encrypted drive which holds the root partition to automount on server start. I'm having an issue where it doesn't automount and instead prompts for a passphrase.
lsblk Output:
sda5
|_sda5_crypt
|_srv--vg-root lvm /
|_srv--vg-swap_1 lvm [SWAP]
/etc/crypttab:
sda5_crypt UUID=uuid goes here /boot/keyfile luks,discard
/etc/fstab:
/dev/mapper/srv--vg-root / ext4 errors=remount-ro 0 1
Now I know that I'm supposed to create a new entry like
/dev/mapper/sda5_crypt / ext4 defaults 0 2
but my / is already defined in fstab, how do I add the crypt entry to fstab so it knows to mount it so the lvm volume groups can be mounted on boot?
ubuntu luks ubuntu-18.04
ubuntu luks ubuntu-18.04
asked Jan 16 at 14:59
MekkonMekkon
1
asked Jan 16 at 14:59
MekkonMekkon
1
asked Jan 16 at 14:59
MekkonMekkon
1
asked Jan 16 at 14:59
MekkonMekkon
1
asked Jan 16 at 14:59
MekkonMekkon
1
1
You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58
add a comment |
You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58
You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58
add a comment |
1 Answer
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Does it prompt for a password at boot? If so, then it is already trying to automount the partition, but the keyfile is unavailable / incorrect. You could try specifying the partition the keyfile is on by changing the path to /dev/disk/by-uuid/<uuid>:/keyfile
answered Jan 17 at 10:50
user10186803user10186803
12
add a comment |
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Does it prompt for a password at boot? If so, then it is already trying to automount the partition, but the keyfile is unavailable / incorrect. You could try specifying the partition the keyfile is on by changing the path to /dev/disk/by-uuid/<uuid>:/keyfile
answered Jan 17 at 10:50
user10186803user10186803
12
add a comment |
Does it prompt for a password at boot? If so, then it is already trying to automount the partition, but the keyfile is unavailable / incorrect. You could try specifying the partition the keyfile is on by changing the path to /dev/disk/by-uuid/<uuid>:/keyfile
answered Jan 17 at 10:50
user10186803user10186803
12
add a comment |
Does it prompt for a password at boot? If so, then it is already trying to automount the partition, but the keyfile is unavailable / incorrect. You could try specifying the partition the keyfile is on by changing the path to /dev/disk/by-uuid/<uuid>:/keyfile
answered Jan 17 at 10:50
user10186803user10186803
12
Does it prompt for a password at boot? If so, then it is already trying to automount the partition, but the keyfile is unavailable / incorrect. You could try specifying the partition the keyfile is on by changing the path to /dev/disk/by-uuid/<uuid>:/keyfile
answered Jan 17 at 10:50
user10186803user10186803
12
answered Jan 17 at 10:50
user10186803user10186803
12
answered Jan 17 at 10:50
user10186803user10186803
12
answered Jan 17 at 10:50
user10186803user10186803
12
12
add a comment |
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You must enter at least one password, otherwise what would be the point of an encrypted drive? You can auto-mount other partitions because their keys are kets in the first partition which isn't auto-mounted. One can also wonder what is the point of encrypting a server? Are you expecting it to be stolen with sensitive data on it?
– xenoid
Jan 16 at 15:27
LUKS supports using keyfiles, and /boot is accessible outside of the encrypted partition. I know it's not the best solution, but this is for a client and unfortunately, it's what they want.
– Mekkon
Jan 16 at 15:58