使用fdisk 创建小于2T的磁盘分区
-CU 为柱面分区并关闭DOS检测模式
[root@web01 ~]# fdisk -cu /dev/sdc
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x6df1fa98.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First sector (2048-208895, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-208895, default 208895): Using default value 208895 Command (m for help): p Disk /dev/sdc: 106 MB, 106954752 bytes 64 heads, 32 sectors/track, 102 cylinders, total 208896 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: 0x6df1fa98 Device Boot Start End Blocks Id System /dev/sdc1 2048 208895 103424 83 Linux Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
更新磁盘分区表并格式化分区
[root@web01 ~]# partprobe /dev/sdc1 [root@web01 ~]# mkfs.ext4 /dev/sdc1 mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=1024 (log=0) Fragment size=1024 (log=0) Stride=0 blocks, Stripe width=0 blocks 25896 inodes, 103424 blocks 5171 blocks (5.00%) reserved for the super user First data block=1 Maximum filesystem blocks=67371008 13 block groups 8192 blocks per group, 8192 fragments per group 1992 inodes per group Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729 Writing inode tables: done Creating journal (4096 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 37 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override.
修改非系统磁盘的检测功能
[root@web01 ~]# tune2fs -c 0 -i 0 /dev/sdc1 tune2fs 1.41.12 (17-May-2010) Setting maximal mount count to -1 Setting interval between checks to 0 seconds
进行磁盘挂载操作（临时）
[root@web01 ~]# mount /dev/sdc1 /data/ [root@web01 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 8.6G 2.2G 6.0G 27% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/sda1 190M 40M 141M 22% /boot /dev/sdb1 94M 1.6M 88M 2% /data01 /dev/sdc1 94M 1.6M 88M 2% /data
永久挂载
[root@web01 ~]# vim /etc/fstab /dev/sdc1 /data ext4 defaults 0 0
/tmp/500m swap swap defaults 0 0
创建临时SWAP并挂载方法：
先创建想要的swap大小的文件并格式化成SWAP 文件
[root@web01 ~]# dd if=/dev/zero of=/tmp/50M bs=5M count=10 10+0 records in 10+0 records out 52428800 bytes (52 MB) copied, 1.60872 s, 32.6 MB/s [root@web01 ~]# ls -hl /tmp total 551M -rw-r--r--. 1 root root 500M Mar 11 23:06 500m -rw-r--r--. 1 root root 50M Mar 16 15:27 50M drwxr-xr-x. 8 root root 4.0K Feb 18 10:18 etc
[root@web01 ~]# mkswap /tmp/50M mkswap: /tmp/50M: warning: don't erase bootbits sectors on whole disk. Use -f to force. Setting up swapspace version 1, size = 51196 KiB no label, UUID=09421fee-e811-41b4-b2d3-c9a9640360a1
进行挂载操作可分为临时与永久
[root@web01 ~]# swapon /tmp/50M [root@web01 ~]# free total used free shared buffers cached Mem: 3908500 311092 3597408 208 27396 112084 -/+ buffers/cache: 171612 3736888 Swap: 1611764 0 1611764