MKFS(8) System Manager's Manual MKFS(8)NAME
mkfs - construct a file system
/sbin/mkfs [ -i bytes ] [ -s size ] [ -m gap ] [ -n modulus ] special
N.B.: file systems are normally created with the newfs(8) command.
Mkfs constructs a file system by writing on the special file special. The size of the filesystem in logical blocks is specified by the -s
size option. Logical blocks are 1K (2 sectors) under 2.11BSD.
NOTE: The newfs(8) program's -s option is in units of sectors. Newfs(8) converts this to filesystem (logical) blocks for mkfs(8).
The number of inodes is calculated based on the argument bytes to the -i option. The default is 4096. If more inodes are desired in a
filesystem (there is an absolute maximum of 65500) then a lower value for bytes should be used, perhaps 3072 or even 2048.
The flags -m gap and -n modulus determine the block interleaving of the freelist that will be constructed, where gap is the distance
between successive 1024-byte blocks, and modulus is the number of blocks before the pattern repeats, typically one cylinder. The optimal
values for these parameters vary with the speed and geometry of the disk, as well as the speed of the processor. Newfs(8) will calculate
the correct values in almost all cases from the disklabel.
SEE ALSO fs(5), dir(5), disklabel(8), fsck(8), mkproto(8)newfs(8)BUGS
The lost+found directory is created but the boot block is left uninitialized (see disklabel(8).)
3rd Berkeley Distribution November 16, 1996 MKFS(8)
Check Out this Related Man Page
MKFS.MINIX(8) System Administration MKFS.MINIX(8)NAME
mkfs.minix - make a Minix filesystem
mkfs.minix [options] device [size-in-blocks]
mkfs.minix creates a Linux MINIX filesystem on a device (usually a disk partition).
The device is usually of the following form:
/dev/hda[1-8] (IDE disk 1)
/dev/hdb[1-8] (IDE disk 2)
/dev/sda[1-8] (SCSI disk 1)
/dev/sdb[1-8] (SCSI disk 2)
The device may be a block device or a image file of one, but this is not enforced. Expect not much fun on a character device :-).
The size-in-blocks parameter is the desired size of the file system, in blocks. It is present only for backwards compatibility. If omit-
ted the size will be determined automatically. Only block counts strictly greater than 10 and strictly less than 65536 are allowed.
OPTIONS -c, --check
Check the device for bad blocks before creating the filesystem. If any are found, the count is printed.
-n, --namelength length
Specify the maximum length of filenames. Currently, the only allowable values are 14 and 30 for file system versions 1 and 2. Ver-
sion 3 allows only value 60. The default is 30.
-i, --inodes number
Specify the number of inodes for the filesystem.
-l, --badblocks filename
Read the list of bad blocks from filename. The file has one bad-block number per line. The count of bad blocks read is printed.
-1 Make a Minix version 1 filesystem. This is the default.
-2, -v Make a Minix version 2 filesystem.
-3 Make a Minix version 3 filesystem.
Display version information and exit. The long option cannot be combined with other options.
Display help text and exit.
The exit code returned by mkfs.minix is one of the following:
0 No errors
8 Operational error
16 Usage or syntax error
SEE ALSO fsck(8), mkfs(8), reboot(8)AVAILABILITY
The mkfs.minix command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2015 MKFS.MINIX(8)
I have a question about the use of du. I understand that du reports the number of 512-byte blocks of disk usage used in the directory and below.
However, with only 3 small files (file a is 64 bytes; b is 68 bytes; c is 6 bytes), du seems to tell me that the OS is using 8 blocks x 512-byte to... (3 Replies)
I am using SCO-Unix 5.0.5. I have created 2 logical drives but some of the blocks are overlapped and are now giving warning during startup. I have used fsck to settle the problems but to no avail. Kindly help me to sort out the problem.
Thanks (3 Replies)
what do you make of this ??
all I want to do is newfs a slice of disk.....
# uname -a
SunOS myhost 5.10 Generic_120011-14 sun4u sparc SUNW,Sun-Fire-V240
# cat /etc/release
Solaris 10 8/07 s10s_u4wos_12b SPARC
Copyright 2007 Sun Microsystems, Inc. All... (4 Replies)
I am trying to do a simple calculation using modulus (%) as shown below. But some how it is not showing me correct result. It says "0.166667" is equal to "0" which is wrong. Could you please help me how can i make it work. Thanks a lot.
SLEEP=60... (7 Replies)
We are not able to grow a UFS filesystem since its size will be going over a TB and it wasn't created using -T with newfs.
Hence we have decided to take the backup of all the files on another filesystem and recreate it using -T with newfs.
Please recommend the most reliable... (2 Replies)
Things like this are teaching me a greater appreciation for network time...
The huge gap between the speed of a satellite connection and its tiny bandwidth allowance means either being completely draconian or having to chide people to not abuse it all the time. We're somewhere inbetween, if a... (3 Replies)
I have the following string, and want to introduce additional spaces between the two %s. This will be done by specifying the gap between the %s. Example having gap=8 will put 8 spaces between the two %s.
I am doing the script in bash.
---------- Post updated at... (4 Replies)
I have the following cenario:
I have requested a LUN from the NetApp to create a file system, and the netapp admin provide me with one as you can see below, but after following all the steps, I could not create a file system on the device:
Searching for disks...done
... (11 Replies)