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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-03-07 19:09:09 +0100 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-03-07 19:09:09 +0100 |
| commit | a1a9560d5cb7e50c9088efd89525771960dc5322 (patch) | |
| tree | 8d89a7d1347b2a9267509a9b49f62be46709cb01 /Documentation | |
| parent | 4d7bc73cd9f20411dde4680c97b2e5746eaf3d3b (diff) | |
| parent | c252409a688a831385fb71097db7a86ffe595b74 (diff) | |
Merge tag 'v4.4.4' into linux-4.4.y-rt
This is the 4.4.4 stable release
Diffstat (limited to 'Documentation')
| -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. |