[Bug 2127235] Re: grub-mkconfig: 31: /etc/default/grub: add: not found

Daniel Letzeisen 2127235 at bugs.launchpad.net
Sat Oct 11 02:57:05 UTC 2025


Good to hear. You're welcome.

** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

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Title:
  grub-mkconfig: 31: /etc/default/grub: add: not found

Status in grub2 package in Ubuntu:
  Invalid

Bug description:
  My laptop keeps trying to do a partial upgrade and at the end says there were errors during the upgrade.
  The error is 'installed linux-image-6.8.0-85-generic package post-installation script subprocess returned error exit status 127'.
  --- 
  ProblemType: Bug
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  llip       6864 F.... wireplumber
   /dev/snd/controlC0:  llip       6864 F.... wireplumber
   /dev/snd/seq:        llip       6859 F.... pipewire
  CRDA: N/A
  CasperMD5CheckResult: unknown
  CurrentDesktop: GNOME-Classic:GNOME
  DistroRelease: Ubuntu 24.04
  InstallationDate: Installed on 2021-10-03 (1468 days ago)
  InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 1ea7:0066 SHARKOON Technologies GmbH [Mediatrack Edge Mini Keyboard]
   Bus 001 Device 003: ID 13d3:56a6 IMC Networks Integrated Camera
   Bus 001 Device 004: ID 0bda:b023 Realtek Semiconductor Corp. RTL8822BE Bluetooth 4.2 Adapter
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  MachineType: LENOVO 81LB
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-84-generic root=UUID=b0a9de9a-0e26-4598-a70f-935ebbdef6bd ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 6.8.0-84.84-generic 6.8.12
  RelatedPackageVersions:
   linux-restricted-modules-6.8.0-84-generic N/A
   linux-backports-modules-6.8.0-84-generic  N/A
   linux-firmware                            20240318.git3b128b60-0ubuntu2.17
  Tags: noble
  Uname: Linux 6.8.0-84-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/30/2020
  dmi.bios.release: 1.22
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 9VCN22WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Legion Y530-15ICH-1060
  dmi.ec.firmware.release: 1.22
  dmi.modalias: dmi:bvnLENOVO:bvr9VCN22WW:bd11/30/2020:br1.22:efr1.22:svnLENOVO:pn81LB:pvrLenovoLegionY530-15ICH-1060:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrLenovoLegionY530-15ICH-1060:skuLENOVO_MT_81LB_BU_idea_FM_LegionY530-15ICH-1060:
  dmi.product.family: Legion Y530-15ICH-1060
  dmi.product.name: 81LB
  dmi.product.sku: LENOVO_MT_81LB_BU_idea_FM_Legion Y530-15ICH-1060
  dmi.product.version: Lenovo Legion Y530-15ICH-1060
  dmi.sys.vendor: LENOVO

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