I did some investigation. It seems that in /etc/crypttab, the third column of the encrypted disk does points to a key file, and the content of the key file is the passphrase.
Not sure why this is created, but I've previously used Ubuntu's disk utility to change the passphrase of my root disk, maybe this is related. Anyway, I changed the third column to `none` and manually remove the key file. Finally, I execute update-initramfs again and now the system become bootable even with the latest kernel. -- 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/1852521 Title: Unable to boot "Gave up waiting for root device" for kernel version 5.3.0-19 & 5.3.0-22 Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu cannot boot if using kernel version 5.3.0-19 & 5.3.0-22. However, kernel version 5.3.0-18 works fine. The root disk is encrypted. When booting with 5.3.0-18, a passsphrase input field is displayed during boot. However, such an input field does not appear in 5.3.0-19 & 5.3.0-22, which eventually leads to time out and the boot failed. Additional information: When I execute `sudo update-initramfs -c -k 5.3.0-22-generic` It shows the following: > update-initramfs: Generating /boot/initrd.img-5.3.0-22-generic > cryptsetup: WARNING: Skipping root target nvme0n1p5_crypt: uses a key file I feel that the message about the root partition (nvme0n1p5_crypt) using a key file might suggest something wrong? Because actually I didn't use a key file for the root partition, instead only a passphrase is used. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-18-generic 5.3.0-18.19+1 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shaform 2068 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Nov 13 21:41:07 2019 InstallationDate: Installed on 2019-11-09 (5 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20LD0017US ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-18-generic root=UUID=6709141d-5e30-44ef-a676-c3bb559cd47c ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.3.0-18-generic N/A linux-backports-modules-5.3.0-18-generic N/A linux-firmware 1.183.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/29/2019 dmi.bios.vendor: LENOVO dmi.bios.version: N25ET50W (1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 20LD0017US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN25ET50W(1.36):bd07/29/2019:svnLENOVO:pn20LD0017US:pvrThinkPadX1Yoga3rd:rvnLENOVO:rn20LD0017US:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone: dmi.product.family: ThinkPad X1 Yoga 3rd dmi.product.name: 20LD0017US dmi.product.sku: LENOVO_MT_20LD_BU_Think_FM_ThinkPad X1 Yoga 3rd dmi.product.version: ThinkPad X1 Yoga 3rd dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852521/+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
