First, create a file system mkfs
1, mkfs command: create a file system (format)
2, the mkfs -t partition device file system type
3, -t: specifies the type of file format
-b: Specifies block size, in bytes.
-U: set the UUID number
4, swap (virtual memory)
mkfs.xfs
mkfs.ext4
mkfs.vaft -F 32
Second, to expand the swap file system file-based way
touch tan
dd if=/dev/zero of=/root/tan bs=500M count=1
Statistics size:
You SH / root / tan
format:
mkswap /root/tan
Third, create a swap file system mkswap
1, format
mkswap partition device
2, View
cat /proc/meminfo | grep -i “swaptotal”
free -m // check memory, in MB
SWAPO the n- -s // View
3, open
swapon partition device
4, closed
swapoff partition device
Fourth, mount a file system, ISO image
1, format: Mount a storage device mount point directory
Mount -o the -loop ISO image file mount point directory
Mount // view the current mount
Mount -a // Mount / etc / fstab to mount all recorded in
Fifth, uninstall
1, format: umount storage device file
umount mount point directory
umount -a // unmount all mounted recorded
Sixth, set automatically mount file / etc / fstab file
1、vim /etc/fstab
/dev/sdb1 /xuexi /ext4 defaults 0 2
/ Dev / sdb1 device
/ Xuexi mount point
/ Ext4 file system
defaults mount option
0 whether to dump backup
Check that the integrity of the system boot time 2
2, parameters:
defaults: Default
auto: automatically mount
noauto: boot does not automatically mount
nouser: superuser before mount
ro: read-only
rw: readable and writable
user: Any user can mount
3, dump backup settings
When the value 1, to allow the backup. When set to 0, the backup operation is ignored
4, fsck disk checking settings
When its value is 0, never checked; / root directory is always 1, the other partition for 2
Seven, to view disk usage df command
1, Options
-h: display more readable unit of capacity
-T: displays a corresponding file system type
-i: control the number of files that can be saved
Eight, to view UUID number blkid command
1, format: blkid partition device
2, steps:
UUID blkid / dev / sdb6 // display device
End blkid / dev / sdb6 >> / etc / fstab // UUID write the check out / etc / fstab file