About Linux disk partitioning, file system creation command, file system mount approximation

　　　　

Linux Disk Management

(1) Create a disk partition

Fdisk/dev/sda

Subcommand: P Print disk partition information

D Delete Partition

N New Partition

W Save and exit

T modify partition ID

L The partition ID of the list

(2) Create a file system on a new partition, a management tool for user space

MKFS.EXT2 Device

Mke2fs-t ext3-b 1024-m 3-l ' volume label '/dev/device Explanation:-T indicates file system

-j =-T ext3-b description block partition size

-N Create how many inode-m to reserve a percentage of space for administrative staff

-N data space each number of bytes created an inode, not less than Block-l indicated volume label

-O fearture[: Enable related attributes

-o ^fearture[...] close related features

　　　

Mkswap: Creating Swap partitions

Mkswap [Options] Device

-L ' LABEL '

Premise: adjust its partition ID to 82;

(3) File System mount fame

Mount [-FNRSVW] [-t vfstype] [-O options] Device dir

Device indicates which devices to mount and can use-u ' UUID ' or-l ' LABEL '

Dir mount point requires pre-existing, preferably empty directory. If the directory is not empty, the previously existing file is hidden

-T type indicates the type of file system being mounted

-U ' UUID ' indicates the device being mounted with a UUID

-L ' LABEL ' indicates the mounted device with a volume label

-R Read-only mount

-W Read-write Mount

-A auto mount so the device that supports automatic mounting is defined in the/etc/fstab file. And the Mount option has an ' Auto mount ' option

-N does not update/etc/mtab automatically

See what the kernel is tracking to mount the device cat/proc/mounts

Device file line selection-o option

Atime/noatime whether the access timestamp is updated automatically

Diratime/nodiratime If the directory access timestamp is automatically updated

ASYCN/SYCN asynchronous mode or synchronous mode high access efficiency for asynchronous mode

Exce/noexce whether the application on the file system is allowed to run as a process

Dev/nodev support for access to device files on this file system

Whether the Auto/noauto supports automatic mounting

Remount Re-mount

RO Read-only mount

RW Read-Write Mount

Suid/nosuid

User/nouser whether a normal user is allowed to mount this device

ACLs enable ACL functionality on the device

Defaults default mount option rw suid dev exec auto Nouser asycn

　　　　

Umount Uninstall command

Umount Mount_point

View the process being accessed fuser-v Mount_point

End the process being accessed fuser-km Mount_point

Enable Swap space swapon-a enable all swap spaces

-P Prioroty

Disable swapoff [option] Device

Memory space usage free-m displayed in megabytes

Mounted File system usage df-h

-I view used inode status

-P output in POSIX-compatible format

View the usage status of a directory Du-h-s Dir

Attached: Cat/proc/filesystems View the file system of the current system

To see if the kernel has identified a new partition:

# cat/proc/partations

Notifies the kernel to re-read the hard disk partition table:

Partx-a/dev/device

-N m:n

Kpartx-a/dev/device

-f:force

Lsmod Viewing mounted file systems

Blkid Device View information for a partition

Blkid-u to view the specified device according to the set ID

　　

　　　　　

　　

　　

　　　　

　　　　

　　　

About Linux disk partitioning, file system creation command, file system mount approximation