Arch Linux

pingu07

Member

Registered: 2026-02-07

Posts: 2

[SOLVED] Timed out waiting for device /dev/mapper/cryptroot LUKS

I just re-installed archlinux to encrypt my drives with luks however it seem like the decrypted partition /dev/mapper/cryptroot isn't mounted. I can chroot with an iso and mount it manually.
here is a image of the error:

lsblk:

nvme0n1                                                                                                                               
├─nvme0n1p3                                                        47A7-56AD                                                         /mnt/boot
├─nvme0n1p4   crypto_LUKS 2                           58fec652-97af-47d9-b8c7-12c07f160b2c                
│ └─cryptroot                                                         c8753d3d-e24b-42a7-945c-8bc06399b8ed  /mnt
└─nvme0n1p5                                                        a520eefc-c236-4653-b827-696c1a7361b6   /mnt/home

fstab:

# /dev/mapper/cryptroot
UUID=c8753d3d-e24b-42a7-945c-8bc06399b8ed	/         	btrfs     	rw,relatime,ssd,space_cache=v2    0 0
# /dev/nvme0n1p3
UUID=47A7-56AD      	/boot     	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro	0 2
# /dev/nvme0n1p5
UUID=a520eefc-c236-4653-b827-696c1a7361b6	/home     	btrfs     	rw,relatime,ssd,discard=async,space_cache=v2	0 0

mkinitcpio.conf:

HOOKS=(base systemd autodetect microcode modconf kms keyboard keymap sd-vconsole block sd-encrypt filesystems fsck)

grub:

# GRUB boot loader configuration

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3"
GRUB_CMDLINE_LINUX="rd.luks.name=58fec652-97af-47d9-b8c7-12c07f160b2c=root root=/dev/mapper/cryptroot

thank you for your help

Last edited by pingu07 (2026-02-07 15:52:07)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,584

Re: [SOLVED] Timed out waiting for device /dev/mapper/cryptroot LUKS

You're using rd.luks.name to tell it to be addressable as 'root', but then trying to access it as 'cryptroot'.

pingu07

Member

Registered: 2026-02-07

Posts: 2

Re: [SOLVED] Timed out waiting for device /dev/mapper/cryptroot LUKS

I feel like the dumbest guy on earth. Thank you a lot