verify file system disk utility volume could not be unmounted

Used in combination with the -c option, uses the badblocks program, ensures that any existing bad blocks are preserved, and any new bad blocks found are added to the bad blocks list.Īdds block numbers listed in the file specified by filename to the list of bad blocks. Replace external-journal with the path you will be using. Sets the path name where the external-journal for the defined file system can be found. This is generally only useful for benchmarking purposes. For more information, see the official man page for e2fsck.įorce filesystem checking even if the file system appears clean.įlushes the file system device’s buffer caches before beginning.

These are generally more advanced options. Replace fd with the file descriptor you would like to use.Įnsures the e2fsck attempts to optimize all directories by re-indexing them or by sorting and compressing directories for smaller directories, or traditional linear directories. Uses the badblocks program to perform a read-only scan to find any bad blocks, and then add any back blocks to the inode to prevent them from being allocated.Įnsures that e2fsck writes completion information to a specified file descriptor to track the progress of the file system check. Replace blocksize with the block size you would like to attempt a repair with. Uses an alternative superblock, replacing superblock as noted in the option.Īllows you to define a block size when performing e2fsck, instead of having e2fsck attempt multiple block sizes to find the correct one.

This option is provided for backwards compatibility purposes only, and it is recommended that the -p option is used instead wherever possible. e2fsck Options and Arguments OptionĪutomatically repair (“preen”) the file system. You risk corrupting your file system and losing data if you run fsck on an active disk.

Verify file system disk utility volume could not be unmounted