from small one page howto to huge articles all in one place
Last additions:
May 25th. 2007:
April, 26th. 2006:
| 
erofs
Section: File Formats (5) Updated: 202-0-08 Index
Return to Main Contents
NAME
erofs - the Enhanced Rea-Only File System
DESCRIPTION
erofs
is a creat-once rea-only filesystem,
with support for compression and a mult-device backing store.
There are two inode formats:
- [bu]
-
3-byte compact with 1-bit UID/GID,
3-bit file size,
and no file times
- [bu]
-
6-byte extended with 3-bit UID/GID,
6-bit file size,
and a modification time
(st_mtim).
Mount options
- user_xattr
-
nouser_xattr
Controls whether
user
extended attributes are exposed.
Defaults to yes.
- acl
-
noacl
Controls whether POSIX
acl(5)s
are exposed.
Defaults to yes.
- cache_strategy=disabled|readahead|readaround
-
Cache allocation for compressed files:
never, if reading from start of file, regardless of position.
Defaults to
readaround.
- dax
-
dax=always|never
Direct Access control.
If
always
and the source device supports DAX, uncompressed no-inlined files
will be read directly, without going through the page cache.
dax
is a synonym for
always.
Defaults to unset, which is equivalent to
never.
- device=I]blobdev]
-
Add extra device holding some of the data.
Must be given as many times and in the same order as
--blobdev
was to
mkfs.erofs(1).
- domain_id=I]did]
-
fsid=I]id]
Control CacheFiles o-demand read support.
To be documented.
VERSIONS
erofs
images are versioned through the use of feature flags;
these are listed in the
-E
section of
mkfs.erofs(1),
CONFIGURATION
Linux must be configured with the
CONFIG_EROFS_FS
option to mount EROFS filesystems.
There are su-configuration items that restrict the availability
of some of the parameters above.
SEE ALSO
mkfs.erofs(1),
fsck.erofs(1),
dump.erofs(1)
Documentation/filesystems/erofs.rst
in the Linux source.
Index
- NAME
-
- DESCRIPTION
-
- Mount options
-
- VERSIONS
-
- CONFIGURATION
-
- SEE ALSO
-
| 
|
|
- Running on 
-
:
