Ubuntu
mdadm package

  1. Bug #1993541
  2. Comment #16

Comment 16 for bug 1993541

Revision history for this message
Cyrus Lien (cyruslien) wrote :

Thank you for your reminder.
Here is my test result.

1. Mount same mountpoint:
Test method: Adding init-top/01_mount_efivarfs_twice to mount efivarfs again.
Result: Indeed, it failed to mount at second time, and "Device or resource busy" error message shows up but that doesn't affect the boot scripts keep going also doesn't impact mdadm.
Log: initramfs.debug

2. Unmount before transitioning to rootfs:
Test method: Adding init-bottom/zz_unmount_efivarfs to unmount efivarfs just before transition.
Result: There is no problem to unmount efivarfs at this stage.
Log: initramfs.debug

3. Also compared the file attributes in efivarfs. The attributes are identical no matter efivarfs is mounted in initrd or by systemd.
Log: lsattr-efivars-mount-by-systemd.log, lsattr-efivars-mount-in-initrd.log

Please find the test scripts and logs in the attached tarball. Thank you.