ext2
Sign in to saveAlso known as second extended filesystem
ext2, or second extended file system, is a file system for the Linux kernel. It was initially designed by French software developer Rémy Card as a replacement for the extended file system (ext). Having been designed according to the same principles as the Berkeley Fast File System from BSD, it was the first commercial-grade filesystem for Linux.
In the Vinony graph
Within Vinony's link graph, ext2 is referenced by 267 other articles, and connects out to byte, Berkeley Software Distribution and Linux kernel.
It sits within the topics 1993 software, Disk file systems and File systems supported by the Linux kernel.
Its subject is documented across 29 Wikipedia language editions.
Key facts
- File system.name
- ext2
- File system.full_name
- Second extended file system
- File system.developer
- Rémy Card
- File system.introduction_os
- Linux
- File system.introduction_date
- January 1993
- File system.preceded_by
- extended file system
- File system.succeeded_by
- ext3
- File system.partition_id
- EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 (GPT)0x83 (Master Boot Record)Apple_UNIX_SVR2 (Apple Partition Map)
- File system.directory_struct
- Table
- File system.file_struct
- bitmap (free space), table (metadata)
- File system.bad_blocks_struct
- Table
- File system.max_filename_size
- 255 bytes
- File system.max_files_no
- 1018
- File system.max_volume_size
- 2–32 TiB
- File system.max_file_size
- 16 GiB – 2 TiB
- File system.filename_character_set
- All bytes except NUL ('\0') and '/'
- File system.dates_recorded
- modification (mtime), attribute modification (ctime), access (atime)
- File system.date_range
- December 14, 1901 - January 18, 2038
via Wikipedia infobox
Wikidata facts
- Instance of
- file system
- Subclass of
- extended file system
- Developer
- Rémy Card
Show 6 more facts
- Stack Exchange tag
- stackoverflow.com/tags/ext2
- inception
- 1993-01-00
- operating system
- Linux
- programmed in
- C
- replaces
- extended file system
- replaced by
- ext3
Sources (1)
via Wikidata · CC0
~12 min read
Encyclopedic overview
13 sectionsContents
- History
- ext2 data structures
- Inodes
- Directories
- Allocating data
- File-system limits
- Compression extension
- Under other operating systems
- See also
- References
- Notes
- Further reading
- External links
ext2, or second extended file system, is a file system for the Linux kernel. It was initially designed by French software developer Rémy Card as a replacement for the extended file system (ext). Having been designed according to the same principles as the Berkeley Fast File System from BSD, it was the first commercial-grade filesystem for Linux.
The canonical implementation of ext2 is the "ext2fs" filesystem driver in the Linux kernel. Other implementations (of varying quality and completeness) exist in GNU Hurd, MINIX 3, some BSD kernels, in MiNT, Haiku and as third-party Microsoft Windows and macOS (via FUSE) drivers. This driver was deprecated in Linux version 6.9 in favor of the ext4 driver, as the ext4 driver works with ext2 filesystems.
Excerpted from Wikipedia’s “ext2” article, available under the CC BY-SA 4.0 licence.