現在Redhat Linux預設的檔案系統格式是ext4。可以透過如下多種方法查詢檔案系統型別

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

檔案系統 型別 容量 已用 可用 已用% 掛載點

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

none devtmpfs 498M 248K 497M 1% /dev

none tmpfs 502M 252K 501M 1% /dev/shm

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

none tmpfs 502M 0 502M 0% /var/lock

none tmpfs 502M 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 * 2048 40105983 20051968 83 Linux

/dev/sda2 40108030 41940991 916481 5 Extended

/dev/sda5 40108032 41940991 916480 82 Linux swap / Solaris

Command (m for help): q

4. file

:~$ sudo file -s /dev/sda

/dev/sda: x86 boot sector; partition 1: ID=0x83, active, starthead 32, startsector 2048,

40103936 sectors; partition 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

(parted) p

Model: VMware, VMware Virtual S (scsi)

磁碟 /dev/sda: 21.5GB

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

分割槽表：msdos

數字 開始： End 大小 型別 檔案系統 標誌

1 1049kB 20.5GB 20.5GB primary ext4 啟動

2 20.5GB 21.5GB 938MB extended

5 20.5GB 21.5GB 938MB logical linux-swap(v1)

(parted)

6. 檢視 fstab

# /etc/fstab: static file system information.

#

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

# for a device; this 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).

#

#

proc /proc proc nodev,noexec,nosuid 0 0

# / was on /dev/sda1 during installation

UUID=4942da40-8a49-4bfd-9dc2-45c906d48413 / ext4 errors=remount-ro,user_xattr

0 1

# swap was on /dev/sda5 during installation

UUID=935fb95d-771f-448e-9d23-4820106e1783 none swap sw 0 0

/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0