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| author | Alex Shi <alex.shi@linaro.org> | 2016-04-21 14:42:15 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-04-21 14:42:15 +0800 |
| commit | fd9302c16fc244139c1ddfdffc145d5b772ed9ce (patch) | |
| tree | 40270feadd63149bcd43380cf3fe402a2dcd85ad /Documentation/filesystems/efivarfs.txt | |
| parent | 9b17ba5e21b99587d7c54250059cf10fd51c74f2 (diff) | |
| parent | 6fe78bc1bfcddabbf3d210e18f91da44fa796d8a (diff) | |
Merge remote-tracking branch 'lts/linux-4.1.y' into linux-linaro-lsk-v4.1lsk-v4.1-16.04
Conflicts:
arch/arm/include/asm/psci.h
mm/memcontrol.c
Diffstat (limited to 'Documentation/filesystems/efivarfs.txt')
| -rw-r--r-- | Documentation/filesystems/efivarfs.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/efivarfs.txt b/Documentation/filesystems/efivarfs.txt index c477af086e65..686a64bba775 100644 --- a/Documentation/filesystems/efivarfs.txt +++ b/Documentation/filesystems/efivarfs.txt @@ -14,3 +14,10 @@ filesystem. efivarfs is typically mounted like this, mount -t efivarfs none /sys/firmware/efi/efivars + +Due to the presence of numerous firmware bugs where removing non-standard +UEFI variables causes the system firmware to fail to POST, efivarfs +files that are not well-known standardized variables are created +as immutable files. This doesn't prevent removal - "chattr -i" will work - +but it does prevent this kind of failure from being accomplished +accidentally. |