Public bug reported:
I rebooted my Ubuntu 20.04.01 LTS OS via SSH and I was unable to reboot.
About 7 seconds into the boot process, I get "Kernel Panic - not
syncing: VFS: Unable to mount root fs on unknown-block(0,0)". I did NOT
upgrade any packages before rebooting.
This error occurs while attempting to boot with the 5.4.0-70 kernel.
I have a RAID0 array on two Samsung 256GB SSDs, and SMART tests
correctly with no errors. There is no sign of data loss or corruption on
the underlying drives. I have two partitions and RAID arrays, one for /,
and one for /boot.
I am able to mount my arrays fine, with no issues, in network rescue
mode provided by scaleway.
I am also able to boot successfully using the 5.4.0-67 kernel, and I
used sudo apt install linux-image-generic-hwe-20.04 to get the 5.8
kernel, and that worked fine. My memory is ECC memory.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-70-generic (not installed)
ProcVersionSignature: Ubuntu 5.8.0-48.54~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-48-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Apr 11 20:33 seq
crw-rw---- 1 root audio 116, 33 Apr 11 20:33 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: pass
Date: Sun Apr 11 20:35:46 2021
InstallationDate: Installed on 2021-02-22 (48 days ago)
InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Supermicro SYS-5038MD-H24TRF-OS012
PciMultimedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-48-generic
root=UUID=3c7859c9-455e-4823-80bd-9cf122d7477d ro
RelatedPackageVersions:
linux-restricted-modules-5.8.0-48-generic N/A
linux-backports-modules-5.8.0-48-generic N/A
linux-firmware 1.187.9
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/13/2018
dmi.bios.release: 5.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.0
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X10SDE-DF
dmi.board.vendor: Supermicro
dmi.board.version: 1.01
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 1
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd06/13/2018:br5.6:svnSupermicro:pnSYS-5038MD-H24TRF-OS012:pvr0123456789:rvnSupermicro:rnX10SDE-DF:rvr1.01:cvnSupermicro:ct1:cvr0123456789:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: SYS-5038MD-H24TRF-OS012
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal uec-images
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https://bugs.launchpad.net/bugs/1923376
Title:
Unable to boot after reboot, no upgrades.
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