Public bug reported:

After last update i got:

"KERNEL PANIC! Please reboot your computer. Unable to mount root fs on
unknown-block(0,0)."

System does not boot. If I choose previous kernel system is booting
correctly and asking me for disk encryption password.

ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: linux-generic 6.17.0-7.7
ProcVersionSignature: Ubuntu 6.17.0-7.7-generic 6.17.2
Uname: Linux 6.17.0-7-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  ws         3284 F.... wireplumber
 /dev/snd/controlC0:  ws         3284 F.... wireplumber
 /dev/snd/seq:        ws         3256 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Dec  6 15:34:22 2025
InstallationDate: Installed on 2023-07-13 (877 days ago)
InstallationMedia: Kubuntu 23.04 "Lunar Lobster" - Release amd64 (20230414.1)
IwDevWlp6s0Link: Not connected.
MachineType: ASUS System Product Name
ProcFB: 0 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-7-generic 
root=/dev/mapper/vgnvme-root ro nvidia_drm.modeset=1 quiet splash nomodeset 
preempt=full rcu_nocbs=all vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 firmware-sof   N/A
 linux-firmware 20250901.git993ff19b-0ubuntu1.4
SourcePackage: linux
UpgradeStatus: Upgraded to questing on 2025-10-31 (36 days ago)
dmi.bios.date: 06/15/2023
dmi.bios.release: 5.17
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3202
dmi.board.asset.tag: Default string
dmi.board.name: TUF GAMING B550-PLUS WIFI II
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr3202:bd06/15/2023:br5.17:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnTUFGAMINGB550-PLUSWIFIII:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
modified.conffile..etc.default.apport: [modified]
mtime.conffile..etc.default.apport: 2023-07-20T00:28:22.888394

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug questing wayland-session

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https://bugs.launchpad.net/bugs/2134301

Title:
  Kernel 6.17.0-7-generic - unable to mount root if disk is encrypted

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