[Bug 1965288] Re: Handle UEFI runtime service SetVariable() not available decently

[Launchpad Bug Tracker]

This bug was fixed in the package grub2 - 2.06-2ubuntu6

---------------
grub2 (2.06-2ubuntu6) jammy; urgency=medium

  [ Heinrich Schuchardt ]
  * efivar: check that efivarfs is writeable (LP: #1965288)

  [ Dimitri John Ledkov ]
  * Do not validate kernels twice. (LP: #1964943)

  [ Heinrich Schuchardt ]
  * efi: EFI Device Tree Fixup Protocol (LP: #1965796)
  * fdt: add debug output to devicetree command

 -- Julian Andres Klode <juliank at ubuntu.com>  Fri, 25 Mar 2022 16:03:11
+0100

** Changed in: grub2 (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1965288

Title:
  Handle UEFI runtime service SetVariable() not available decently

Status in curtin:
  New
Status in grub2 package in Ubuntu:
  Fix Released

Bug description:
  On system conforming to the Embedded Base Boot Requirements (EBBR)
  specification it is allowable that the UEFI runtime service
  SetVariable() is not available. This means that the BOOTXXXX variable
  for invoking GRUB cannot be set automatically. Instead this has to be
  left to the user.


          Traceback (most recent call last):
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
              ret = args.func(args)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/commands/curthooks.py", line 1886, in curthooks
              builtin_curthooks(cfg, target, state)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/commands/curthooks.py", line 1851, in builtin_curthooks
              setup_grub(cfg, target, osfamily=osfamily,
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/commands/curthooks.py", line 804, in setup_grub
              install_grub(instdevs, target, uefi=uefi_bootable, grubcfg=grubcfg)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/commands/install_grub.py", line 401, in install_grub
              in_chroot.subp(cmd, env=env, capture=True)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/util.py", line 780, in subp
              return subp(*args, **kwargs)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/util.py", line 275, in subp
              return _subp(*args, **kwargs)
            File "/snap/subiquity/x1/lib/python3.8/site-packages/curtin/util.py", line 139, in _subp
              raise ProcessExecutionError(stdout=out, stderr=err,
          curtin.util.ProcessExecutionError: Unexpected error while running command.
          Command: ['unshare', '--fork', '--pid', '--', 'chroot', '/target', '/usr/lib/grub/grub-multi-install']
          Exit code: 1
          Reason: -
          Stdout: ''
          Stderr: Installing grub to /boot/efi.
                  Installing for riscv64-efi platform.
                  grub-install: warning: Cannot set EFI variable Boot0000.
                  grub-install: warning: efivarfs_set_variable: failed to create /sys/firmware/efi/efivars/Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c for writing: Read-only file system.
                  grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Read-only file system.
                  grub-install: error: failed to register the EFI boot entry: Read-only file system.

          Unexpected error while running command.
          Command: ['unshare', '--fork', '--pid', '--', 'chroot', '/target', '/usr/lib/grub/grub-multi-install']
          Exit code: 1
          Reason: -
          Stdout: ''
          Stderr: Installing grub to /boot/efi.
                  Installing for riscv64-efi platform.
                  grub-install: warning: Cannot set EFI variable Boot0000.
                  grub-install: warning: efivarfs_set_variable: failed to create /sys/firmware/efi/efivars/Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c for writing: Read-only file system.
                  grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Read-only file system.
                  grub-install: error: failed to register the EFI boot entry: Read-only file system.

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