如何查看linux的文件系统是什么格式的

需要准备的材料分别是：电脑、linux连接工具。

1、首先连接上linux主机，进入等待输入指令的linux命令行状态。

2、在命令行状态下面，输入指令：df-T-h，再按回车。

3、此时会打印出所有文件系统对应的文件格式。

在Linux中可以使用如下几种方法来查看文件系统，即可以看到文件系统的版本，比如ext4还是ext3。

1. mount

:~$ mount

/dev/sda1 on / type ext4 (rw,errors=remount-ro,user_xattr)

proc on /proc type proc (rw,noexec,nosuid,nodev)

none on /sys type sysfs (rw,noexec,nosuid,nodev)

none on /sys/fs/fuse/connections type fusectl (rw)

none on /sys/kernel/debug type debugfs (rw)

none on /sys/kernel/security type securityfs (rw)

none on /dev type devtmpfs (rw,mode=0755)

none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)

none on /dev/shm type tmpfs (rw,nosuid,nodev)

none on /var/run type tmpfs (rw,nosuid,mode=0755)

none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)

none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)

none on /var/lib/ureadahead/debugfs type debugfs (rw,relatime)

none on /proc/fs/vmblock/mountPoint type vmblock (rw)

binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)

gvfs-fuse-daemon on /home/kysnail/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=kysnail)

:~$

2. df

:~$ df -lhT

文件系统 类型容量 已用 可用 已用% 挂载点

/dev/sda1 ext4 19G 11G 7.8G 57% /

none devtmpfs498M 248K 497M 1% /dev

none tmpfs502M 252K 501M 1% /dev/shm

none tmpfs502M 96K 502M 1% /var/run

none tmpfs502M 0 502M 0% /var/lock

none tmpfs502M 0 502M 0% /lib/init/rw

none debugfs 19G 11G 7.8G 57% /var/lib/ureadahead/debugfs

:~$

3. fdisk

:~$ sudo fdisk /dev/sda

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

switch off the mode (command 'c') and change display units to

sectors (command 'u').

Command (m for help): c

DOS Compatibility flag is not set

Command (m for help): u

Changing display/entry units to sectors

Command (m for help): p

Disk /dev/sda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00077544

Device Boot Start End Blocks Id System

/dev/sda1 *20484010598320051968 83 Linux

/dev/sda24010803041940991 9164815 Extended

/dev/sda54010803241940991 916480 82 Linux swap / Solaris

Command (m for help): q

4. file

:~$ sudo file -s /dev/sda

/dev/sda:

x86 boot sectorpartition 1: ID=0x83, active, starthead 32,

startsector 2048, 40103936 sectorspartition 2: ID=0x5, starthead 254,

startsector 40108030, 1832962 sectors, code offset 0x63

kysnail@ubunkysnail:~$ sudo file -s /dev/sda1

/dev/sda1:

Linux rev 1.0 ext4 filesystem data,

UUID=4942da40-8a49-4bfd-9dc2-45c906d48413 (needs journal recovery)

(extents) (large files) (huge files)

:~$

5. parted

:~$ sudo parted

GNU Parted 2.2

使用 /dev/sda

欢迎使用 GNU Parted! 输入 'help'可获得命令列表.

(parted) p

Model: VMware, VMware Virtual S (scsi)

磁盘 /dev/sda: 21.5GB

Sector size (logical/physical): 512B/512B

分区表：msdos

数字 开始： End 大小类型 文件系统标志

11049kB 20.5GB 20.5GB primary ext4启动

220.5GB 21.5GB 938MB extended

520.5GB 21.5GB 938MB logical linux-swap(v1)

(parted)

6. 查看 fstab

# /etc/fstab: static file system information.

#

# Use 'blkid -o value -s UUID' to print the universally unique identifier

# for a devicethis may be used with UUID= as a more robust way to name

# devices that works even if disks are added and removed. See fstab(5).

#

# <file system><mount point> <type> <options> <dump> <pass>

proc/proc procnodev,noexec,nosuid 0 0

# / was on /dev/sda1 during installation

UUID=4942da40-8a49-4bfd-9dc2-45c906d48413 / ext4errors=remount-ro,user_xattr 0 1

# swap was on /dev/sda5 during installation

UUID=935fb95d-771f-448e-9d23-4820106e1783 noneswapsw 0 0

/dev/fd0/media/floppy0 autorw,user,noauto,exec,utf8 0 0

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