裝好CentOS后,發現空間太小,怎樣才能增加硬盤容量?那就是再建一個硬盤:
打開虛擬經濟的設置添加硬盤
查看現有的磁盤空間
fdisk -l
[root@localhost ~]# fdisk -l Disk /dev/sda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000e4bd8 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 2611 20458496 8e Linux LVM Disk /dev/sdb: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
我添加的是/dev/sdb
給新加的硬盤進行分區
fdisk /dev/sdb
輸入m ,可以查看幫助信息
Command (m for help): m Command 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):
增加新的分區
command (m for help):n
選擇基本信息分區,輸入:p
Command (m for help): n Command action e extended p primary partition (1-4)
回車
First cylinder (1-15908,default 1):Enter (這是回車是指分的默認大小) 寫入並退出 command (m for help):w
然后格式化磁盤分區
用ext4格式對/dev/sdb1進入格式化
mkfs.ext4 /dev/sdb1
[root@localhost ~]# mkfs.ext4 /dev/sdb
mke2fs 1.41.12 (17-May-2010)
/dev/sdb is entire device, not just one partition!
無論如何也要繼續? (y,n) y
/dev/sdb 已經掛載;will not make a 文件系統 here!
[root@localhost ~]#
因為我的擴展盤符已經掛上去了,在占用狀態。
掛載分區
先創建一個掛載點
mkdir /work
mount -t ext4 /dev/sdb1/work
查看掛載狀態
df -h
[root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 18G 11G 6.2G 63% / tmpfs 932M 72K 932M 1% /dev/shm /dev/sda1 485M 40M 421M 9% /boot /dev/sdb 5.0G 138M 4.6G 3% /work [root@localhost ~]#
將掛載的目錄加入開機自動掛載
/dev/sdb1 /work ext4 errors=remount-ro 0 1
完成