Home Explore Blog CI



man-pages

25th chunk of `mount.man`
1c60f55fbb2c5d5e80fe26e7de626a9a2758ba02583e630c0000000100000fa6
 file length. This
           implies that a file cannot be larger than 16 MB.

       session=x
           Select number of session on a multisession CD.

       sbsector=xxx
           Session begins from sector xxx.

       The following options are the same as for vfat and specifying them only
       makes sense when using discs encoded using Microsoft’s Joliet
       extensions.

       iocharset=value
           Character set to use for converting 16 bit Unicode characters on CD
           to 8 bit characters. The default is iso8859-1.

       utf8
           Convert 16 bit Unicode characters on CD to UTF-8.

   Mount options for jfs
       iocharset=name
           Character set to use for converting from Unicode to ASCII. The
           default is to do no conversion. Use iocharset=utf8 for UTF8
           translations. This requires CONFIG_NLS_UTF8 to be set in the kernel
           .config file.

       resize=value
           Resize the volume to value blocks. JFS only supports growing a
           volume, not shrinking it. This option is only valid during a
           remount, when the volume is mounted read-write. The resize keyword
           with no value will grow the volume to the full size of the
           partition.

       nointegrity
           Do not write to the journal. The primary use of this option is to
           allow for higher performance when restoring a volume from backup
           media. The integrity of the volume is not guaranteed if the system
           abnormally ends.

       integrity
           Default. Commit metadata changes to the journal. Use this option to
           remount a volume where the nointegrity option was previously
           specified in order to restore normal behavior.

       errors={continue|remount-ro|panic}
           Define the behavior when an error is encountered. (Either ignore
           errors and just mark the filesystem erroneous and continue, or
           remount the filesystem read-only, or panic and halt the system.)

       noquota|quota|usrquota|grpquota
           These options are accepted but ignored.

   Mount options for msdos
       See mount options for fat. If the msdos filesystem detects an
       inconsistency, it reports an error and sets the file system read-only.
       The filesystem can be made writable again by remounting it.

   Mount options for ncpfs
       Just like nfs, the ncpfs implementation expects a binary argument (a
       struct ncp_mount_data) to the mount(2) system call. This argument is
       constructed by ncpmount(8) and the current version of mount (2.12) does
       not know anything about ncpfs.

   Mount options for ntfs
       iocharset=name
           Character set to use when returning file names. Unlike VFAT, NTFS
           suppresses names that contain nonconvertible characters. Deprecated.

       nls=name
           New name for the option earlier called iocharset.

       utf8
           Use UTF-8 for converting file names.

       uni_xlate={0|1|2}
           For 0 (or 'no' or 'false'), do not use escape sequences for unknown
           Unicode characters. For 1 (or 'yes' or 'true') or 2, use vfat-style
           4-byte escape sequences starting with ":". Here 2 gives a
           little-endian encoding and 1 a byteswapped bigendian encoding.

       posix=[0|1]
           If enabled (posix=1), the filesystem distinguishes between upper and
           lower case. The 8.3 alias names are presented as hard links instead
           of being suppressed. This option is obsolete.

       uid=value, gid=value and umask=value
           Set the file permission on the filesystem. The umask value is given
           in octal. By default, the files are owned by root and not readable
           by somebody else.

   Mount options for overlay
       Since Linux 3.18 the overlay pseudo filesystem implements a union mount
       for other filesystems.

       An overlay filesystem combines two filesystems - an upper

Title: JFS, MSDOS, NCPFS, NTFS, and Overlay Mount Options
Summary
This section describes mount options for several filesystems. For JFS, it covers journal integrity, error handling, and quota options (though quota options are ignored). For MSDOS, it refers to the FAT filesystem mount options and notes the filesystem becomes read-only on detecting inconsistencies. For NCPFS, it explains the binary argument requirement for the mount(2) system call. For NTFS, it details options for character set conversion (iocharset/nls), UTF-8 encoding, Unicode character handling, POSIX compliance (now obsolete), and setting file permissions. Finally, for Overlay, it mentions that it is a union mount for other filesystems (introduced in Linux 3.18).