Disk partition format, mount, swap partition mount

Partition and mount the hard disk

Environment: Virtual machine, centos6.5

1. Add a hard drive 20G

2. View Fdisk-l partition, is a complete disk

# fdisk-ldisk/dev/sdb:21.5 GB, 21474836480 bytes255 heads, $ sectors/track, 2610 cylindersunits = cylinders of 16065 * 8225280 bytessector Size (logical/physical): bytes/512 bytesi/o size (minimum/optimal): bytes/512 bytes Disk identifier:0x00000000

3. Partitioning the disk

# FDISK/DEV/SDB

command  (m for help):  mcommand action   a   toggle  a bootable flag   b   edit bsd disklabel    c   toggle the dos compatibility flag   d    delete a partition   l   list known partition  Types   m   print this menu   n   add  a new partition   o   create a new empty dos  partition table   p   print the partition table    q   quit without saving changes   s    Create a new empty sun disklabel   t   change a  partition ' S system id   u   change display/entry units   v    verify the partition table   w   write table  to disk and exit   x   extra functionality  ( experts only) command  (m for help): ncommand action   e    extended   p   primary partition  (1-4) ppartition  number  (1-4): 1first cylinder  (1-2610, default 1): Using default  value 1last cylinder, +cylinders or +size{k,m,g}  (1-2610, default 2610 ): +5gcommand  (M FOR HELP): wthe partition table has been  altered! Calling ioctl ()  to re-read partition table. Syncing disks.

See if the kernel is actually reading the partition table

# cat/proc/partitions Major Minor #blocks name 8 0 20971520 SDA 8 1 409600 sda1 8 2 20560896 sda2 8 20971520 sdb 8 5253223 sdb1

4. Formatting partitions

# MKFS.EXT4/DEV/SDB1

5. Set the volume label

# E2LABEL/DEV/SDB1 Myfirst

6. Edit the/etc/fstab file and add the following:

# vim/etc/fstablabel=myfirst/mnt/firstsdb EXT4 Defaults 0 0

7. Create a new mount point

# MKDIR/MNT/FIRSTSDB

8. Mounting the file system

# mount/dev/sdb1/mnt/firstsdb/

To see if the mount was successful

# mount/dev/sda2 On/type ext4 (rw) proc On/proc type proc (rw) Sysfs On/sys type SYSFS (rw) devpts on/dev/pts type DEVPT S (rw,gid=5,mode=620) Tmpfs on/dev/shm type Tmpfs (rw,rootcontext= "System_u:object_r:tmpfs_t:s0") none on/proc/sys/fs/ Binfmt_misc type Binfmt_misc (rw)/dev/sdb1 on/mnt/firstsdb type EXT4 (rw)

Under Mount directory, a lost+found directory is generated

# cd/mnt/firstsdb/# Lslost+found

Follow the previous steps and create a new disk

# fdisk-cu/dev/sdb Device Boot Start End Blocks Id system/dev/sdb1 63 10506509 5253223+ linux/dev/sdb2 10506510 14700813 2097152 Linux

The SDB2 partition is not recognized when viewed

# cat/proc/partitions Major Minor #blocks name 8 0 20971520 SDA 8 1 409600 sda1 8 2 20560896 sda2 8 20971520 sdb 8 5253223 sdb1

You can now use PARTX to identify

# partx-a/dev/sdbblkpg:device or resource busyerror adding partition # cat/proc/partitions major minor #blocks name       8 0 20971520 SDA 8 1 409600 sda1 8 2 20560896 sda2 8 20971520 SDB 8 5253223 SDB1 8 2097152 sdb2

Then carry out the corresponding mount work

To view the volume label, use the E2label disk name

# E2label/dev/sdb1myfirst

Create a 1G swap partition

Command (M for help): Tpartition number (1-4): 3Hex code (type L to list codes): 82/DEV/SDB3 916 1046 1048576 Swap/solaris Linux

See how big the swap partition is before you mount it

# free -m              total       used        free     shared    buffers      cachedMem:          1006         161        844           0         20          69-/+ buffers/cache:          72        934Swap:           399          0         399 

Format swap partition

# mkswap/dev/sdb3setting up Swapspace version 1, size = 1048572 kibno label, uuid=71372e47-1252-4303-9fa2-6a1545820716

# VIM/ETC/FSTAB/DEV/SDB3 swap swap defaults 0 0

Activating swap partitions

# SWAPON/DEV/SDB3

To view the size of the swap partition after activating the swap partition

# free -m              total       used        free     shared    buffers      cachedMem:          1006         162        844           0         20          69-/+ buffers/cache:          72        933Swap:          1423          0        1423 

This article is from the "Small City Studio" blog, please be sure to keep this source http://xcroom.blog.51cto.com/7941996/1691660

Disk partition format, mount, swap partition mount