- About mke2fs: To create an ext2/ext3/ext4 filesystem
- It comes from “e2fsprogs-1.41.12” package.
- Configuration Files:
- Path: /sbin/mke2fs
Examples:
1. To create a file system on a device
| $ mke2fs /dev/sda2 |
2. To specify the block size in bytes
| $ mke2fs -b 1024 /dev/sda2 |
3. To check the device for bad blocks
| $ mke2fs -c /dev/sda2 |
4. To set extended options for file system
| $ mke2fs -E stride=stride-size $ mke2fs -E stripe-width=stripe-width $ mke2fs -E resize=max-online-resize $ mke2fs -E lazy_itable_init[= <0 to disable, 1 to enable>] $ mke2fs -E test_fs |
5. To Specify the size of fragments in bytes
| $ mke2fs -f fragment-size |
6. To force mke2fs to create file system
| $ mke2fs -F /dev/sda2 |
7. To specify the number of blocks in a block group.
| $ mke2fs -g blocks-per-group |
8. To specify the number of block groups that will be packed together to create a larger virtual block group
| $ mke2fs -G number-of-groups |
9. To specify the bytes/inode ratio
| $ mke2fs -i bytes-per-inode |
10. To specify the size of each inode in bytes
| $ mke2fs -I inode-size |
11. To create the ext3 journal using options specified on the command-line
| $ mke2fs -J size=journal-size $ mke2fs -J device=external-journal |
12. To keep, do not attempt to discard blocks at mkfs time
| $ mke2fs -K |
13. To read the bad blocks list from filename
| $ mke2fs -l filename |
14. To set the volume label for the filesystem to new-volume-label
| $ mke2fs -L new-volume-label |
15. To specify the percentage of the filesystem blocks reserved for the super-user
| $ mke2fs -m reserved-blocks-percentage |
16. To set the last mounted directory for the filesystem
| $ mke2fs -M last-mounted-directory |
17. To not actually create a filesystem, but display what it would do if it were to create a filesystem.
| $ mke2fs -n |
18. To overrides the default calculation of the number of inodes that should be reserved for the filesystem
| $ mke2fs -N number-of-inodes |
19. To overrides the default value of the “creator operating system” field of the filesystem
| $ mke2fs -o creator-os |
20. To create a filesystem with the given features
| $ mke2fs -O uninit_bg |
21. To quit execution
| $ mke2fs -O dir_index $ mke2fs -O extent $ mke2fs -O filetype $ mke2fs -O flex_bg $ mke2fs -O has_journal $ mke2fs -O journal_dev $ mke2fs -O large_file $ mke2fs -O resize_inode $ mke2fs -O sparse_super $ mke2fs -q |
22. To set the filesystem revision for the new filesystem
| $ mke2fs -r revision |
23. To write superblock and group descriptors only
| $ mke2fs -S |
24. To specify the filesystem type
| $ mke2fs -t fs-type |
25. To specify how the filesystem is going to be used
| $ mke2fs -T usage-type[,…] |
26. To create the filesystem with the specified UUID
| $ mke2fs -U UUID |
27. For verbose execution
| $ mke2fs -v |
28. To print the version info
| $ mke2fs -V |
Related Commands: mke2fs.conf, badblocks, dumpe2fs, e2fsck, tune2fs
