lookup_builtin_file() could not open builtin file '/lib/modules/5.4.0-14-generic/modules.builtin.bin'

[Nick Moffitt]

This error did not take place on my laptop (where I ran apport, for convenience), but on a server being deployed to Focal with MAAS.

The initial deployment boot worked fine, and that was lucky as it meant I could ssh in and tail /var/log/syslog while it went through the upgrades and cloud-init steps. But after this it reboots without network configuration.

I've attached the logs mentioned above.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-modules-5.4.0-14-generic 5.4.0-14.17
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: nick 1445 F.... pulseaudio
 /dev/snd/controlC0: nick 1445 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Feb 28 16:17:47 2020
Dependencies:

InstallationDate: Installed on 2020-02-24 (4 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20ALCT01WW
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-14-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding.
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-14-generic N/A
 linux-backports-modules-5.4.0-14-generic N/A
 linux-firmware 1.186
SourcePackage: linux-5.4
UpgradeStatus: Upgraded to focal on 2020-02-24 (4 days ago)
dmi.bios.date: 12/15/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: GIET84WW (2.34 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20ALCT01WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98417 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGIET84WW(2.34):bd12/15/2015:svnLENOVO:pn20ALCT01WW:pvrThinkPadX240:rvnLENOVO:rn20ALCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X240
dmi.product.name: 20ALCT01WW
dmi.product.sku: LENOVO_MT_20AL_BU_Think_FM_ThinkPad X240
dmi.product.version: ThinkPad X240
dmi.sys.vendor: LENOVO

[Nick Moffitt (nick-moffitt)]

It's still happening:

Mar 2 10:05:37 negret cloud-init[2450]: depmod: ERROR: ../libkmod/libkmod.c:515 lookup_builtin_file() could not open builtin file '/lib/modules/5.4.0-14-generic/modules.builtin.bin'

-rw-r--r-- 1 root root 10257 Mar 1 22:11 /lib/modules/5.4.0-14-generic/modules.builtin.bin

So I'm not sure why it has trouble!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nick Moffitt (nick-moffitt)]

And from MAAS boot it seems like this was running the right kernel:

[ 0.000000] Linux version 5.4.0-14-generic (buildd@lgw01-amd64-034) (gcc version 9.2.1 20200203 (Ubuntu 9.2.1-28ubuntu1)) #17-Ubuntu SMP Thu Feb 6 22:47:59 UTC 2020 (Ubuntu 5.4.0-14.17-generic 5.4.18)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-14-generic root=UUID=3b923f7b-c9b3-4b86-9c53-1a8c65af7551 ro console=ttyS1,115200 nosplash netcfg/do_not_use_netplan=true

[Nick Moffitt (nick-moffitt)]

Looking at bug#1863261 the depmod error may be a red herring.