[Bug 2084089] Re: ZFS with disk encryption missing cryptoswap

Wed Oct 9 19:43:19 UTC 2024

** Changed in: subiquity (Ubuntu)
       Status: New => Confirmed

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Title:
  ZFS with disk encryption missing cryptoswap

Status in subiquity package in Ubuntu:
  Confirmed

Bug description:
  After installing Oracular for the "Install (entire disk with ZFS plus
  encryption) in Ubuntu Desktop amd64" ISO testing and rebooting the
  system I noticed that the swap was not activated.

  I can see this in the systemd journal

  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.device: Job dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.device/start timed out.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: Timed out waiting for device dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.device - /dev/disk/by-id/dm-uuid-CRYPT-PLAIN-dm_crypt-0.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: Dependency failed for dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.swap - /dev/disk/by-id/dm-uuid-CRYPT-PLAIN-dm_crypt-0.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: Dependency failed for swap.target - Swaps.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: swap.target: Job swap.target/start failed with result 'dependency'.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.swap: Job dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.swap/start failed with result 'dependency'.
  out 09 19:25:13 danilo-Aspire-ES1-572 systemd[1]: dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.device: Job dev-disk-by\x2did-dm\x2duuid\x2dCRYPT\x2dPLAIN\x2ddm_crypt\x2d0.device/start failed with result 'timeout'.

  # lsblk 
  NAME             MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
  loop0              7:0    0     4K  1 loop  /snap/bare/5
  loop1              7:1    0  74,2M  1 loop  /snap/core22/1621
  loop2              7:2    0  11,7M  1 loop  /snap/desktop-security-center/32
  loop3              7:3    0   272M  1 loop  /snap/firefox/5091
  loop4              7:4    0  10,7M  1 loop  /snap/firmware-updater/127
  loop5              7:5    0 505,1M  1 loop  /snap/gnome-42-2204/176
  loop6              7:6    0  89,7M  1 loop  /snap/gtk-common-themes/1536
  loop7              7:7    0    14M  1 loop  /snap/prompting-client/51
  loop8              7:8    0  10,7M  1 loop  /snap/snap-store/1218
  loop9              7:9    0   564K  1 loop  /snap/snapd-desktop-integration/247
  loop10             7:10   0  38,8M  1 loop  /snap/snapd/21759
  loop11             7:11   0 149,9M  1 loop  /snap/thunderbird/526
  sda                8:0    0 223,6G  0 disk  
  ├─sda1             8:1    0     1M  0 part  
  ├─sda2             8:2    0     2G  0 part  
  ├─sda3             8:3    0     4G  0 part  
  └─sda4             8:4    0 217,6G  0 part  
  sr0               11:0    1  1024M  0 rom   
  zd0              230:0    0    20M  0 disk  
  └─keystore-rpool 252:0    0     4M  0 crypt /run/keystore/rpool

  # ls -l /dev/mapper/
  total 0
  crw------- 1 root root 10, 236 out  9 19:23 control
  lrwxrwxrwx 1 root root       7 out  9 19:23 keystore-rpool -> ../dm-0

  # cat /etc/crypttab 
  dm_crypt-0 PARTUUID=e3ce6d46-c340-4d83-b40f-87eeff46c4bc /dev/urandom cipher=aes-cbc-essiv:sha256,initramfs,plain,size=256,swap
  root at danilo-Aspire-ES1-572:~# 

  # ls -l /dev/disk/by-id/
  total 0
  lrwxrwxrwx 1 root root  9 out  9 19:23 ata-HL-DT-ST_DVDRAM_GUE1N_KXKG7P34019 -> ../../sr0
  lrwxrwxrwx 1 root root  9 out  9 19:23 ata-SanDisk_SSD_PLUS_240_GB_174336804972 -> ../../sda
  lrwxrwxrwx 1 root root 10 out  9 19:23 ata-SanDisk_SSD_PLUS_240_GB_174336804972-part1 -> ../../sda1
  lrwxrwxrwx 1 root root 10 out  9 19:23 ata-SanDisk_SSD_PLUS_240_GB_174336804972-part2 -> ../../sda2
  lrwxrwxrwx 1 root root 10 out  9 19:23 ata-SanDisk_SSD_PLUS_240_GB_174336804972-part3 -> ../../sda3
  lrwxrwxrwx 1 root root 10 out  9 19:23 ata-SanDisk_SSD_PLUS_240_GB_174336804972-part4 -> ../../sda4
  lrwxrwxrwx 1 root root 10 out  9 19:23 dm-name-keystore-rpool -> ../../dm-0
  lrwxrwxrwx 1 root root 10 out  9 19:23 dm-uuid-CRYPT-LUKS2-c09e07539b4c4db39637f9503b6eca56-keystore-rpool -> ../../dm-0
  lrwxrwxrwx 1 root root  9 out  9 19:23 wwn-0x5001480000000000 -> ../../sr0
  lrwxrwxrwx 1 root root  9 out  9 19:23 wwn-0x5001b448b64d0ef0 -> ../../sda
  lrwxrwxrwx 1 root root 10 out  9 19:23 wwn-0x5001b448b64d0ef0-part1 -> ../../sda1
  lrwxrwxrwx 1 root root 10 out  9 19:23 wwn-0x5001b448b64d0ef0-part2 -> ../../sda2
  lrwxrwxrwx 1 root root 10 out  9 19:23 wwn-0x5001b448b64d0ef0-part3 -> ../../sda3
  lrwxrwxrwx 1 root root 10 out  9 19:23 wwn-0x5001b448b64d0ef0-part4 -> ../../sda4

  For comparison this is on my laptop:

  nvme0n1          259:0    0 953.9G  0 disk  
  ├─nvme0n1p1      259:1    0   512M  0 part  /boot/grub
  │                                           /boot/efi
  ├─nvme0n1p2      259:2    0     2G  0 part  
  │ └─cryptoswap   252:1    0     2G  0 crypt [SWAP]
  ├─nvme0n1p3      259:3    0     2G  0 part  
  └─nvme0n1p4      259:4    0 949.4G  0 part  

  $ cat /etc/crypttab 
  cryptoswap      /dev/nvme0n1p2  /dev/urandom    swap,initramfs

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