How do I see the Linux file system type?

The Linux commands used in the past must be good at summing up.

How do I see the Linux file system type?

1. The DF command reports the file system disk space utilization , using the-t option to display the file system type for a particular partition of the disk,-H human readable mode.

[[email protected] ~]# df-thfilesystem Type Size used Avail use% mounted on/dev/sda2 ext4 19G 12G 6.3G 65%/tmpfs tmpfs 491M 0 491M 0%/dev/shm/dev/sda1 ext4 190M 65M 116M 36%/boot

The 2.FSCK command can be used to detect and repair a file system , or to output a file system type for a specified disk partition. The- n parameter disables checking for file system errors, just shows what will be done.

[Email protected] ~]# fsck-n/dev/sda1 fsck from Util-linux-ng 2.17.2[/sbin/fsck.ext4 (1)--/boot] fsck.ext4/dev/sda1

The 3.lsblk command displays block device information, and when the-f option is used, the partition's file system type is printed

[[email protected] ~]# lsblk -fname   fstype  label            UUID                                   mountpointsr0    iso9660 centos 7  x86_64                                        sda                                                                    ├─sda1 ext4                      b5717723-fe1c-4add-81f2-e0015dd5753a /boot├─sda2 ext4                      9de67bcd-2282-4533-8f30-2657ed4e0f0c /└─sda3 swap                     6e49b772-f74f-4ba3-8a5c-e699cbc25053  [swap]

The 4.mount command is used to mount the file system without any parameters, and it prints information about the partition of the disk that contains the file system type.

[[email protected] ~]# mount/dev/sda2 on/type ext4 (rw) proc On/proc type proc (rw) Sysfs On/sys type SYSFS (rw) devpts o N/dev/pts type devpts (rw,gid=5,mode=620) Tmpfs on/dev/shm type TMPFS (rw)/dev/sda1 on/boot type EXT4 (rw) None on/proc/ Sys/fs/binfmt_misc type Binfmt_misc (rw

The 5.blkid command is used to locate or print block device properties.

[Email protected] ~]# blkid/dev/sda1:uuid= "b5717723-fe1c-4add-81f2-e0015dd5753a" type= "Ext4"/dev/sda2:uuid= " 9de67bcd-2282-4533-8f30-2657ed4e0f0c "type=" Ext4 "/dev/sda3:uuid=" 6e49b772-f74f-4ba3-8a5c-e699cbc25053 "TYPE=" Swap

The 6.file command recognizes file types , enables read block devices or character devices with the-s parameter, and-L enables symbolic link following.

[Email protected] ~]# File-ls/dev/sda1/dev/sda1:linux Rev 1.0 ext4 FileSystem data (needs Journal recovery) (extents) (Huge files)

7.fstab file is a file system information (such as Mount point, file system type, mount option, boot auto mount, etc.) file

[[email protected] ~]# cat /etc/fstab## /etc/fstab# created by  Anaconda on thu mar 16 00:24:26 2017## accessible filesystems, by  reference, are maintained under  '/dev/disk ' # see man pages fstab (5),  findfs (8),  mount (8)  and/or blkid (8)  for more info#uuid= 9de67bcd-2282-4533-8f30-2657ed4e0f0c /      ext4      defaults     1     1uuid= b5717723-fe1c-4add-81f2-e0015dd5753a /boot    ext4      Defaults     1     2uuid= 6e49b772-f74f-4ba3-8a5c-e699cbc25053 swap    swap    defaults      0     0tmpfs                   /dev/shm  tmpfs      defaults     0     0devpts                   /dev/pts   devpts     gid=5,mode=620  0     0sysfs                     /sys    sysfs     defaults     0      0proc                     /proc   proc      defaults     0     0# directories to Mount                  #挂载点    mount type       mount options      Backup    whether the boot disk self-test

Work Problems : Unable to boot due to modified/etc/fstab

Repair/etc/fstab using Linux rescue (Rescue mode) ( wrong configuration, then unable to restart the system )

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Answer:

Can be solved by rescue mode.

Rescue mode does not support VIM

Vi/mnt/sysimage/etc/fstab, mount the error, repair or remove it.

This article is from the "funny Brother Notes" blog, be sure to keep this source http://qiuyt.blog.51cto.com/1229789/1919619

How do I see the Linux file system type?