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mkfs.jfs(8) JFS file system creation mkfs.jfs(8)
mkfs.jfs - create a JFS formatted partition
mkfs.jfs [options] device
mkfs.jfs is used to create (format) a JFS partition. mkfs.jfs must be run as root.
device is the special file name corresponding to the actual device (e.g. /dev/hdb1) on
which a JFS file system will be created.
The default block size is 4096.
mkfs.jfs will destroy all data on the specified device!
-c Check the device for bad blocks before building the file system.
Set the volume label for the file system.
-O Provide case-insensitive support for compatibility with OS/2.
-q Quiet execution - do not ask for confirmation before creating the file system.
Set the log size (in megabytes). If the -s option is not used, the default log
size is 0.4% of the aggregate size.
-V Print version information and exit (regardless of any other chosen options).
Format 3rd partition on 2nd hard disk with the volume label "JFS_hdb3":
mkfs.jfs -L JFS_hdb3 /dev/hdb3
Format 5th partition on 1st hard disk, verifying each block created:
mkfs.jfs -c /dev/hda5
If you find a bug in JFS or mkfs.jfs, please report it via the bug tracking system
("Report Bugs" section) of the JFS project web site:
Please send as much pertinent information as possible including any error messages result-
ing from running mkfs.jfs and the complete output of running fsck.jfs with the -v option.
mkfs(8), fsck.jfs(8), extendfs(8), logdump(8), logredo(8), xchkdmp(8), xpeek(8)
Barry Arndt (email@example.com)
William Braswell, Jr.
mkfs.jfs is maintained by IBM.
See the JFS project web site for more details:
November 9, 2001 mkfs.jfs(8)
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