Mark:

With a LUKS encrypted system, when a new kernel is installed "update-
initramfs -u -k $KERNEL_VERSION" is executed.

As part of that cryptsetup hooks scripts are called. They examine
/etc/fstab and /etc/crypttabto determine if the root file-system, or
swap (which may be used for hibernation) are  encrypted.

If so cryptsetup and its supporting libraries and scripts are copied
into the initrd.img-$KERNEL_VERSION file that is being built.

Additionally, the /etc/crypttab entry for the root file-system device is
added to the initialramfs's /conf/conf.d/cryptroot.

At boot-time the initialramfs cryptsetup scripts read this file and
should unlock the LUKS container.

As that is not happening you should, when dropped at the initialramfs
shell, check for the existence of the config and the tooling:

# ls -l /conf/conf.d/cryptroot /bin/cryptroot-unlock /sbin/cryptsetup
/lib/cryptsetup/askpass

If they are present you can manually unlock using:

# cryptsetup open /dev/sdXY sdXY_crypt

Note: identify the LUKS container using:

# blkid | grep crypt_LUKS

and replace my example 'sdXY' with your device name.

After a successful unlock scan for LVM volumes:

# vgchange -ay

Then let the init system resume operations by pressing Ctrl+D or typing:

# exit


If you're not in the initramfs but are looking at the broken system's file 
system from a LiveISO or similar you can check whether the cryptsetup tools are 
included in the initrd.img file using this command:

# sudo ls -l /boot/initrd.img*

# sudo lsinitramfs /boot/initrd.img-$KERNEL_VERSION | grep crypt

cryptroot-keyfiles
cryptroot-keyfiles/cryptswap1.key
cryptroot-keyfiles/LUKS_VG02.key
sbin/cryptsetup
usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
conf/conf.d/cryptroot
bin/cryptroot-unlock
lib/cryptsetup
lib/cryptsetup/askpass
lib/x86_64-linux-gnu/libgcrypt.so.20.2.1
lib/x86_64-linux-gnu/libcryptsetup.so.12
lib/x86_64-linux-gnu/libgcrypt.so.20
lib/x86_64-linux-gnu/libcryptsetup.so.12.2.0
lib/modules/5.1.0-050100-lowlatency/kernel/crypto
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/crypto_simd.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/xor.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/cryptd.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/ecdh_generic.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx/async_tx.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx/async_memcpy.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx/async_raid6_recov.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx/async_pq.ko
lib/modules/5.1.0-050100-lowlatency/kernel/crypto/async_tx/async_xor.ko
lib/modules/5.1.0-050100-lowlatency/kernel/drivers/md/dm-crypt.ko
lib/modules/5.1.0-050100-lowlatency/kernel/arch/x86/crypto
lib/modules/5.1.0-050100-lowlatency/kernel/arch/x86/crypto/glue_helper.ko
lib/modules/5.1.0-050100-lowlatency/kernel/arch/x86/crypto/aes-x86_64.ko
lib/modules/5.1.0-050100-lowlatency/kernel/arch/x86/crypto/aesni-intel.ko
scripts/local-bottom/cryptopensc
scripts/local-block/cryptroot
scripts/local-top/cryptroot
scripts/local-top/cryptopensc

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1829620

Title:
  cryptsetup stuck at loading initramfs

Status in cryptsetup package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-hwe package in Ubuntu:
  Confirmed
Status in linux-hwe-edge package in Ubuntu:
  Confirmed

Bug description:
  Description:
  - my system gets stuck at "Booting, Loading initramfs" (the first 2 lines of 
booting, after grub)
  - does not even show the enter cryptsetup passphrase
  - affected kernels:
  # apt list --installed |grep linux-signed
  WARNING: apt does not have a stable CLI interface. Use with caution in 
scripts.
  linux-signed-generic/bionic-security,bionic-updates,now 4.15.0.50.52 amd64 
[installed]
  linux-signed-generic-hwe-18.04/bionic-security,bionic-updates,now 
4.18.0.20.70 amd64 [installed]
  linux-signed-generic-hwe-18.04-edge/bionic-security,bionic-updates,now 
5.0.0.15.71 amd64 [installed]

  - the setup is not new, has been working perfectly before (about 7
  days since my last restart?)

  System:
  - HW: ASUS Zenbook 14 UX433FN
  - Ubuntu 18.04, runing latest HWE, fully updated
  - grub(-pc), cryptsetup (crypttab entries for custom encrypted LUKS setup),

  Suspected/possible cause?:
  - recent intel-microcode package update
  - recent kernel package updates

  Steps taken:
  - tried to remove "splash quiet" from grub/kernel cmd line (also tried adding 
nosplash, noplymouth)
  - completely removed nvidia drivers (apt purge *nvidia*)
  - completely purged and reinstalled grub (grup-pc)
  - completely purged and reinstalled all kernels (headers, modules, image, ..)
  - toggle BIOS "fastboot" (now using OFF)
  - toggle UEFI SecureBoot (now using ON)
  - remove plymouth (apt remove *plymouth* , but the workaround is working with 
plymouth installed)

  Workaround:
  - so far, I'm only able to boot with non-Ubuntu kernel! 
(linux-image-liquorix-amd64)
  - which needs "splash" option ON
  - reinstall cryptsetup & update-grub (as suggested in 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1829620/comments/10 )

  I am not sure how to get you more debug info, as this setup has been working 
before, and it's a very eary boot-process bug, so I can't even access dmesg etc.
  ---
  ProblemType: Bug
  ApportVersion: 2.20.9-0ubuntu7.6
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: KDE neon 18.04
  InstallationDate: Installed on 2012-12-23 (2337 days ago)
  InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 
(20121017.1)
  Package: linux-hwe-edge (not installed)
  Tags:  bionic wayland-session
  Uname: Linux 5.0.0-17.1-liquorix-amd64 x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm libvirtd lpadmin netdev plugdev sudo vboxusers video
  _MarkForUpload: True

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1829620/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to