[Bug 2032579] [NEW] grub-efi-amd64 cant unmount /tmp/zfsmnt.8wydX2

[Thomas Schweikle]

Public bug reported:

grub.efi-amd64 fails to unmount /tmp/zfsmnt.8wydX2. In tune a non working grub.cfg is created.
System boots into rescue mode, unable to mount zfs.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: grub-efi-amd64 2.12~rc1-4ubuntu1
ProcVersionSignature: Ubuntu 6.3.0-7.7-generic 6.3.5
Uname: Linux 6.3.0-7-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Tue Aug 22 00:55:06 2023
InstallationDate: Installed on 2021-12-11 (618 days ago)
InstallationMedia: Xubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
ProcEnviron:
 LANG=de_DE.UTF-8
 LANGUAGE=de_DE
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: grub2-unsigned
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub2-unsigned (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug mantic

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https://bugs.launchpad.net/bugs/2032579

Title:
  grub-efi-amd64 cant unmount /tmp/zfsmnt.8wydX2

Status in grub2-unsigned package in Ubuntu:
  New

Bug description:
  grub.efi-amd64 fails to unmount /tmp/zfsmnt.8wydX2. In tune a non working grub.cfg is created.
  System boots into rescue mode, unable to mount zfs.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.10
  Package: grub-efi-amd64 2.12~rc1-4ubuntu1
  ProcVersionSignature: Ubuntu 6.3.0-7.7-generic 6.3.5
  Uname: Linux 6.3.0-7-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.27.0-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: XFCE
  Date: Tue Aug 22 00:55:06 2023
  InstallationDate: Installed on 2021-12-11 (618 days ago)
  InstallationMedia: Xubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
  ProcEnviron:
   LANG=de_DE.UTF-8
   LANGUAGE=de_DE
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  RebootRequiredPkgs: Error: path contained symlinks.
  SourcePackage: grub2-unsigned
  UpgradeStatus: No upgrade log present (probably fresh install)

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