Mount options

https://linux.die.net/man/8/mount

• defaults: rw, suid, dev, exec, auto, nouser, and async
• noiversion Do not increment the i_version inode field
• auto_da_alloc
• acl
• user_xattr Support "user." extended attributes (or not).
• noatime do not update inode access times on this filesystem
• errors=remount-ro
• commit=20, commit=nrsec Sync all data and metadata every nrsec seconds. The default value is 5 seconds. Zero means default.
• inode_readahead_blks=64 tuning parameter controls the maximum number of inode table blocks that ext4's inode table readahead algorithm will pre-read into the buffer cache
• delalloc Deferring block allocation until write-out time.

See also

• File systems: mount, umount, findmnt, find, swapon, swapoff, UUID, blkid, mount options: /etc/fstab, udisksctl mount, guestmount, /proc/mounts, fstrim, systemd-mount, defaults
• ext4 e2fsck, fsck.ext4, superblock, inode, block size, mkfs.ext4 tune2fs, wipefs, resize2fs stat, extents, Review ext4 journalctl logs. Read-only file system, virt-resize, ACL