Endpoint configuration · GraphQL enum

DiskMountOption enum

File system mount options. Values cover both Linux fstab/mount options and macOS mount flags. Reference (Linux): mount(8) — Linux man page Reference (macOS): mount(8) — Apple man page

Values

Enum Value Description

READ_WRITE

 Mount read-write.

READ_ONLY

 Mount read-only.

SYNCHRONOUS

 All writes are synchronous (macOS flag name; see also SYNC).

NO_EXEC

 Disallow program execution.

NO_SUID

 Ignore setuid bits.

UNION

 Union with underlying file system (macOS).

ASYNC

 All writes are asynchronous.

DONT_BROWSE

 Do not show in Finder (macOS).

AUTO_MOUNTED

 Filesystem was mounted automatically (macOS).

JOURNALED

 Filesystem is journaled (macOS HFS+).

MULTI_LABEL

 Mandatory access control multi-label (macOS).

NO_ATIME

 Do not update inode access times.

NO_DEV

 Disallow device file access.

COMPRESS

 Enable filesystem-level compression (btrfs, APFS).

ATIME

 Update inode access times.

NOATIME

 Do not update inode access times.

AUTO

 Allow automatic mounting (Linux fstab).

NOAUTO

 Disable automatic mounting (Linux fstab).

CONTEXT

 Apply SELinux context label (Linux).

FSCONTEXT

 Apply SELinux filesystem context label (Linux).

DEFCONTEXT

 Apply SELinux default context label (Linux).

ROOTCONTEXT

 Apply SELinux root context label (Linux).

DEFAULTS

 Use kernel default mount options (Linux fstab).

DEV

 Allow device file access (Linux).

NODEV

 Disallow device file access.

DIRATIME

 Update directory access times (Linux).

NODIRATIME

 Do not update directory access times (Linux).

DIRSYNC

 Synchronize directory updates (Linux).

EXEC

 Allow program execution (Linux).

NOEXEC

 Disallow program execution.

GROUP

 Allow group members to mount (Linux fstab).

IVERSION

 Enable inode version tracking (Linux).

NOIVERSION

 Disable inode version tracking (Linux).

MAND

 Enable mandatory locking (Linux).

NOMAND

 Disable mandatory locking (Linux).

NETDEV

 Network filesystem device (Linux fstab).

NOFAIL

 Do not fail boot if mount fails (Linux fstab).

RELATIME

 Update atime only on reads (less frequently) (Linux).

NORELATIME

 Disable relatime behavior (Linux).

STRICTATIME

 Always update access times (Linux).

NOSTRICTATIME

 Do not always update access times (Linux).

LAZYTIME

 Delay writing to disk; batch atime updates (Linux).

NOLAZYTIME

 Disable lazytime behavior (Linux).

SUID

 Honor setuid bits (Linux).

NOSUID

 Ignore setuid bits.

SILENT

 Suppress certain kernel warning messages (Linux).

LOUD

 Enable kernel warning messages (Linux).

OWNER

 Allow the device owner to mount (Linux fstab).

REMOUNT

 Remount an already-mounted filesystem (Linux).

RO

 Mount read-only.

RW

 Mount read-write.

SYNC

 All I/O is synchronous.

USER

 Allow unprivileged user to mount (Linux fstab).

NOUSER

 Disallow unprivileged user to mount (Linux fstab).

USERS

 Allow any user to mount (Linux fstab).

NOSYMFOLLOW

 Disallow following symbolic links (Linux, macOS).

X_MOUNT_AUTO_FSTYPES

 Automatically determine filesystem types (Linux fstab x-mount extension).

X_MOUNT_NOCANONICALIZE

 Do not canonicalize paths (Linux fstab x-mount extension).

X_MOUNT_NOLOOP

 Disable loop device auto-detection (Linux fstab x-mount extension).

X_MOUNT_SUBDIR

 Mount a specific subdirectory (Linux fstab x-mount extension).

X_MOUNT_OWNER

 Override mount owner UID (Linux fstab x-mount extension).

X_MOUNT_GROUP

 Override mount group GID (Linux fstab x-mount extension).

X_MOUNT_MODE

 Override mount permission mode (Linux fstab x-mount extension).

X_MOUNT_IDMAP

 Apply ID-mapped mount (Linux fstab x-mount extension).

X_MOUNT_MKDIR

 Create mountpoint directory if missing (Linux fstab x-mount extension).

UID

 FAT/VFAT: set uid for all files.

GID

 FAT/VFAT: set gid for all files.

OWNMASK

 FAT/VFAT: permissions mask for files owned by uid.

OTHMASK

 FAT/VFAT: permissions mask for files owned by others.

SETUID

 FAT/VFAT: allow setuid execution.

SETGID

 FAT/VFAT: allow setgid execution.

MODE

 FAT/VFAT: permission mode for files.

PROTECT

 HFS+: protect root directory (macOS).

USEMP

 HFS+: use mount point from superblock.

VERBOSE

 Enable verbose output during mount.

PREFIX

 FAT: filesystem volume prefix.

VOLUME

 FAT/NTFS: volume label.

RESERVED

 Reserved mount option.

ROOT

 Root filesystem mount option.

BS

 FAT: block size.

GRPQUOTA

 Enable group disk quotas.

NOQUOTA

 Disable all disk quotas.

QUOTA

 Enable disk quotas.

USRQUOTA

 Enable user disk quotas.

NEWINSTANCE

 devpts: create a new private instance.

PTMXMODE

 devpts: mode for the ptmx device file.

UMASK

 FAT/VFAT: overall permission umask.

DMASK

 FAT/VFAT: umask applied to directories.

FMASK

 FAT/VFAT: umask applied to files.

ALLOW_UTIME

 FAT: allow updating timestamps for user-owned files.

CHECK

 FAT: check file system consistency on mount.

CODEPAGE

 FAT: codepage for short filename conversion.

CONV

 FAT: convert line endings (text conversion mode).

CVF_FORMAT

 FAT/UMSDOS: CVF format driver name.

CVF_OPTION

 FAT/UMSDOS: CVF format options.

DEBUG

 Enable debug output for filesystem.

DISCARD

 Enable TRIM/discard for SSD-friendly block reclaim.

DOS1XFLOPPY

 FAT: emulate DOS 1.x floppy drive behavior.

ERRORS

 FAT: error handling behavior (continue, remount-ro, panic).

FAT

 FAT: FAT type (12, 16, or 32).

NFS

 NFS-specific mount option.

TZ

 FAT: timezone offset.

TIME_OFFSET

 FAT: time offset in seconds from UTC.

QUIET

 FAT: suppress some messages.

RODIR

 FAT: make root directory read-only.

SHOWEXEC

 FAT: only show executable files.

SYS_IMMUTABLE

 UFS: immutable flag for system files.

FLUSH

 FAT/VFAT: flush write operations frequently.

USEFREE

 FAT: use free cluster count from boot sector.

DOTS

 FAT: use dot and dot-dot entries.

NODOTS

 FAT: do not use dot and dot-dot entries.

DOTSOK

 FAT: allow dot files.

POSIX

 ISO 9660: use POSIX permissions.

NONUMTAIL

 FAT/VFAT: do not use numeric tail for 8.3 filenames.

UTF8

 FAT/VFAT: use UTF-8 encoding.

SHORTNAME

 FAT/VFAT: short file name conversion mode.

CREATOR

 HFS: creator type for new files.

TYPE

 HFS: file type for new files.

DIR_UMASK

 FAT/VFAT: umask for directories.

FILE_UMASK

 FAT/VFAT: umask for files.

SESSION

 HFS: session number for multi-session CDROMs.

PART

 HFS: partition number.

CASE

 FAT: case sensitivity.

NOCHECK

 ISO 9660: skip filesystem consistency check.

NOROCK

 ISO 9660: ignore Rock Ridge extensions.

NOJOLIET

 ISO 9660: ignore Joliet extensions.

MAP

 ISO 9660: map non-compliant filenames.

UNHIDE

 ISO 9660: show hidden files.

BLOCK

 ISO 9660: block size.

CRUFT

 ISO 9660: ignore file size discrepancies.

SBSECTOR

 ISO 9660: sector block size offset for the filesystem.

UNDELETE

 UFS: enable undelete support.

ADINICB

 UDF: store data in ICB (in-core block).

NOADINICB

 UDF: do not store data in ICB.

SHORTAD

 UDF: use short allocation descriptors.

LONGAD

 UDF: use long allocation descriptors.

NOSTRICT

 UDF: disable strict compliance mode.

IOCHARSET

 Charset for filename encoding (e.g. iso8859-1).

RESIZE

 Resize the filesystem.

NOINTEGRITY

 NTFS: disable journal integrity checking.

INTEGRITY

 NTFS: enable journal integrity checking.

NLS

 NLS national language support charset.

UNI_XLATE

 Translate unicode to Latin-1 (VFAT).

LOWERDIR

 OverlayFS: lower directory layers.

UPPERDIR

 OverlayFS: upper (writable) directory.

WORKDIR

 OverlayFS: work directory for overlay operations.

USERXATTR

 Enable user-space extended attributes.

REDIRECT_DIR

 ReiserFS: enable directory redirect.

INDEX

 ReiserFS: enable directory index (htree).

UUID

 Filesystem UUID.

NFS_EXPORT

 Enable NFS re-export of the filesystem.

XINO

 ReiserFS: inode number extender.

METACOPY

 OverlayFS: enable metadata-only copy-up.

VOLATILE

 Btrfs: allow unsafe metadata writes (volatile).

HASH

 Btrfs: hash algorithm for checksums.

HASHED_RELOCATION

 Btrfs: enable hashed relocation.

NO_UNHASHED_RELOCATION

 Btrfs: disable unhashed relocation.

NOBORDER

 ReiserFS: disable border flushing heuristic.

NOLOG

 ReiserFS: disable journaling.

NOTAIL

 ReiserFS: disable file tailing packing.

REPLAYONLY

 ReiserFS: replay journal only, do not mount.

USER_XATTR

 Enable user-extended attributes.

ACL

 Enable POSIX access control lists.

BARRIER

 Enable write barrier for journaling filesystems.

BULK_READ

 UBIFS: enable bulk read optimization.

NO_BULK_READ

 UBIFS: disable bulk read optimization.

CHK_DATA_CRC

 UBIFS: enable data CRC checking.

NO_CHK_DATA_CRC

 UBIFS: disable data CRC checking.

COMPR

 Enable transparent filesystem compression.

UFSTYPE

 UFS: filesystem type variant.

ONERROR

 UFS: error recovery behavior (panic, lock, umount, repair).

DEVUID

 USB: default uid for device files.

DEVGID

 USB: default gid for device files.

DEVMODE

 USB: default mode for device files.

BUSUID

 USB: default uid for bus files.

BUSGID

 USB: default gid for bus files.

BUSMODE

 USB: default mode for bus files.

LISTUID

 USB: default uid for list files.

LISTGID

 USB: default gid for list files.

LISTMODE

 USB: default mode for list files.

VERITY_HASHDEVICE

 dm-verity: hash device for integrity verification.

VERITY_ROOTHASH

 dm-verity: root hash of the hash tree.

VERITY_ROOTHASHFILE

 dm-verity: file containing the root hash.

VERITY_HASHOFFSET

 dm-verity: offset of the hash tree in the hash device.

VERITY_FECDEVICE

 dm-verity: Forward Error Correction (FEC) device.

VERITY_FECOFFSET

 dm-verity: offset of FEC data in the FEC device.

VERITY_FECROOTS

 dm-verity: number of FEC parity bytes.

VERITY_ROOTHASHSIG

 dm-verity: signature file for the root hash.

VERITY_ONCORRUPTION

 dm-verity: action on corruption (ignore, restart, panic).

LOOP

 Mount image file via loop device.

OFFSET

 Byte offset into the image file for loop mount.

SIZELIMIT

 Size limit for loop mount.

Used by

  • DiskMount type: A file system mounted on an Endpoint, identified by its device and mount point (for example C: on Windows or / on Linux and macOS).

Example

Example

"READ_WRITE"