|
因为安装数据库，需要较大的磁盘容量，需要把一块新磁盘挂载到/opt上 1 对磁盘做分区： root@rac1:/root>fdisk /dev/sdb The number of cylinders for this disk is set to 182024. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-182024, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-182024, default 182024): Using default value 182024 Command (m for help): p Disk /dev/sdb: 1497.1 GB, 1497198755840 bytes 255 heads, 63 sectors/track, 182024 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 182024 1462107748+ 83 Linux Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. 2 创建ext3 文件系统： root@rac1:/root>mkfs.ext3 /dev/sdb1 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 182763520 inodes, 365526937 blocks 18276346 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 11155 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000, 214990848 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 30 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. 3 创建标签 root@rac1:/root>e2label /dev/sdb1 /opt root@rac1:/root>mount /dev/sdb1 /opt 4 mount 到/opt (如果opt里面有数据，则需要先做备份，mount之后，再拷贝到/opt目录) root@rac1:/root>df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.5G 3.0G 6.1G 33% / /dev/sda3 4.8G 138M 4.4G 4% /tmp /dev/sda6 255G 27G 215G 12% /home /dev/sda1 99M 14M 80M 15% /boot tmpfs 12G 0 12G 0% /dev/shm /dev/sdb1 1.4T 198M 1.3T 1% /opt 5 修改/etc/fstab 文件 root@rac1:/root>vi /etc/fstab LABEL=/ / ext3 defaults 1 1 LABEL=/tmp /tmp ext3 defaults 1 2 LABEL=/home /home ext3 defaults 1 2 LABEL=/boot /boot ext3 defaults 1 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 LABEL=SWAP-sda5 swap swap defaults 0 0 LABEL=/opt /opt ext3 defaults 1 2 "/etc/fstab" 11L, 761C written 测试： root@rac1:/root>umount /opt/ root@rac1:/root>df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.5G 3.0G 6.1G 33% / /dev/sda3 4.8G 138M 4.4G 4% /tmp /dev/sda6 255G 27G 215G 12% /home /dev/sda1 99M 14M 80M 15% /boot tmpfs 12G 0 12G 0% /dev/shm root@rac1:/root>mount -a root@rac1:/root>df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.5G 3.0G 6.1G 33% / /dev/sda3 4.8G 138M 4.4G 4% /tmp /dev/sda6 255G 27G 215G 12% /home /dev/sda1 99M 14M 80M 15% /boot tmpfs 12G 0 12G 0% /dev/shm /dev/sdb1 1.4T 198M 1.3T 1% /opt root@rac1:/root>ls /opt/ lost+found root@rac1:/root> (责任编辑：IT) |