Install error, grub-install: warning: efivarfs_set_variable: writing to fd 9 failed: Invalid argument.

[Phoeun Rajame]

May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: Cannot set EFI variable Boot0001.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: efivarfs_set_variable: writing to fd 9 failed: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: error: failed to register the EFI boot entry: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]:
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Unexpected error while running command.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Command: ['unshare', '--fork', '--pid', '--mount-proc=/target/proc', '--', 'chroot', '/target', '/usr/lib/grub/grub-multi-install']
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Exit code: 1
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Reason: -
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Stdout: ''
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Stderr: Installing grub to /boot/efi.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Installing for x86_64-efi platform.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: Cannot set EFI variable Boot0001.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: efivarfs_set_variable: writing to fd 9 failed: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: grub-install: error: failed to register the EFI boot entry: Invalid argument.
May 07 21:30:02 ubuntu subiquity_log.3628[6647]:
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: {'current': '0002', 'timeout': '1 seconds', 'order': '0002,0000,0001'}
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: {'current': '0002', 'timeout': '1 seconds', 'order': '0002,0000,0001'}
May 07 21:30:02 ubuntu subiquity_log.3628[6647]:
May 07 21:30:02 ubuntu subiquity_log.3628[6647]: Stderr: ''
May 07 21:30:02 ubuntu subiquity_event.3628[3628]: executing curtin install curthooks step
May 07 21:30:02 ubuntu subiquity_event.3628[3628]: installing system
May 07 21:30:02 ubuntu subiquity_event.3628[3628]:

[Sebastien Bacher (seb128)]

Thank you for your bug report. Could you add the logs from/var/log/installer after getting the problem?