Arch Linux

EnzephaloN

Member

Registered: 2024-02-29

Posts: 17

not-LUKS-encrypted LVM gives error at startup

Hello

I had to reinstall my notebook.
Before, root and swap were LVMs on LUKS-encrypted partition.

I formatted this partition and set it to "Linux LVM" . Created a new VG on the partition and installed arch.

After installation all worked fine, but at boot I see

ERROR: Failed to open encryption mapping: The device /dev/mapper/arch_lvm-root is not a LUKS volume and te crypto= parameter was not specified.
/dev/mapper/arch_lvm-root: clean, 237467/27525120 files, 5755591/110099456 blocks

/etc/mkinitcpi.conf

...
MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)

BINARIES=()

FILES=()

HOOKS=(base udev autodetect microcode modconf kms keyboard keymap consolefont block encrypt lvm2 filesystems fsck)
...

/etc/default/grub

...
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet root=/dev/mapper/arch_lvm-root acpi_os=Linux resume=/dev/mapper/arch_lvm-swap"
GRUB_CMDLINE_LINUX="nvidia_drm.modeset=1 nvidia_drm.fbdev=1"
...

I tried

$    sudo cryptsetup erase /dev/mapper/arch_lvm-root
Gerät »/dev/mapper/arch_lvm-root« ist kein gültiges LUKS-Gerät.
$  sudo cryptsetup luksDump /dev/mapper/arch_lvm-root
Gerät »/dev/mapper/arch_lvm-root« ist kein gültiges LUKS-Gerät.

After wipefs -a /dev/mapper/arch_lvm-root the partition-superblock were damaged, I had to repair with e2chkfs, but error still persists.

How can I prevent system from trying to decrypt an unencrypted device??

kermit63

Member

Registered: 2018-07-04

Posts: 174

Re: not-LUKS-encrypted LVM gives error at startup

HOOKS=(base udev autodetect microcode modconf kms keyboard keymap consolefont block encrypt lvm2 filesystems fsck)

.

try removing the encrypt hook from mkinitcpio.conf and run mkinitcpio again.

Whoracle

Member

Registered: 2010-11-02

Posts: 38

Re: not-LUKS-encrypted LVM gives error at startup

According to their post in other languages, /home is still encrypted, hence the hook being present.

EnzephaloN

Member

Registered: 2024-02-29

Posts: 17

Re: not-LUKS-encrypted LVM gives error at startup

try removing the encrypt hook from mkinitcpio.conf and run mkinitcpio again.

I tink I need this, because my home-partition is still encrypted?