** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1894378
Title:
Cannot boot after updating kernel to version 5.4.0-45
Status in linux package in Ubuntu:
Fix Released
Bug description:
After the kernel update from version 5.4.0-42 to version 5.4.0-45 a
few days ago, the boot process is ending in a BusyBox shell.
Apparently it cannot properly identify my M.2 NMVe SSD device where my
root partition is. Indeed, it is not listed in /dev (precisely: nvme0
is listed in /dev, but nvme0n1 and its partitions are not). For now,
I'm solving this problem by booting the previous kernel, 5.4.0-42.
This works fine.
Also, an earlier attempt ended in a different shell that presented the
error message "Gave up on waiting for root file system device". The
UUID it indicated as missing is the correct UUID of my root partition,
which also appears on /etc/fstab.
I tried to re-build initrd.img-5.4.0-45-generic, but to no avail.
Let me also mention that in another computer with a non-M.2 SSD,
kernel 5.4.0-45 boots properly.
This bug seems to be the one mentioned in the following "Unix & Linux" forum
question:
https://unix.stackexchange.com/questions/607694/ubuntu-20-04-01-not-booting-after-kernel-update
Many thanks in advance!
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-42-generic 5.4.0-42.46
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ami 3801 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sat Sep 5 17:42:26 2020
HibernationDevice: RESUME=UUID=dd70dd06-717a-4acf-a85e-a9ad37cb92ea
InstallationDate: Installed on 2017-10-04 (1066 days ago)
InstallationMedia: Kubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64
(20170801)
IwConfig:
enp0s31f6 no wireless extensions.
lo no wireless extensions.
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 1532:022a Razer USA, Ltd Razer Cynosa Chroma
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M
|__ Port 8: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 8: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 8: Dev 2, If 2, Class=Human Interface Device, Driver=usbhid, 12M
MachineType: System manufacturer System Product Name
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-42-generic
root=UUID=85262f0d-cb92-475a-8174-2d6316e199a9 ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.4.0-42-generic N/A
linux-backports-modules-5.4.0-42-generic N/A
linux-firmware 1.187.3
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-05-03 (125 days ago)
dmi.bios.date: 06/20/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3807
dmi.board.asset.tag: Default string
dmi.board.name: H110M-A/M.2
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.:bvr3807:bd06/20/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH110M-A/M.2:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
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: System manufacturer
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