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2012-12-19
xensystem 挂载磁盘
此文章转载自:http://blog.aoyohost.com/mount-ext3-formatted-disk.html 因为文章写得很详细,就不补充,只拷贝自己总结下原理:这就是虚拟一块磁盘给vps 用,vps 想用这块磁盘,需要格式化,挂载。 [root@MyVPS ~]# fdisk -l (查看磁盘分区) Disk /dev/xvdb: 7516 MB, 7516192768 bytes 255 heads, 63 sectors/track, 913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/xvdb doesn't contain a valid partition table Disk /dev/xvda: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/xvda1 * 1 13 104391 83 Linux /dev/xvda2 14 1044 8281507+ 8e Linux LVM /dev/xvda3 1045 1305 2096482+ 8e Linux LVM [root@MyVPS ~]# df -hal //*查看已划分区空间使用情况*// Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 9.3G 1.2G 7.7G 13% / proc 0 0 0 - /proc sysfs 0 0 0 - /sys devpts 0 0 0 - /dev/pts /dev/xvda1 99M 29M 66M 31% /boot tmpfs 151M 0 151M 0% /dev/shm none 0 0 0 - /proc/sys/fs/binfmt_misc sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs [root@MyVPS ~]# fdisk /dev/xvdb //*对硬盘/dev/xvdb进行增加分区操作*// Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel. 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 //*输入n新建分区*// Command action e extended p primary partition (1-4) p //*输入p主分区*// Partition number (1-4): 1 //*输入1第一个分区*// First cylinder (1-913, default 1): //*回车跳过*// Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-913, default 913): //*回车跳过*// Using default value 913 Command (m for help): w //*输入W保存退出*// The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@MyVPS ~]# mkfs -t ext3 /dev/xvdb1 //*将新分区xvdb1(此名称因系统而异)格式化为ext3格式*// mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 917504 inodes, 1833410 blocks 91670 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=1879048192 56 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 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 21 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@MyVPS ~]# mount /dev/xvdb1 /home //*将新分区xvdb1挂载到目录/home*// [root@MyVPS ~]# df -hal Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 9.3G 1.2G 7.7G 13% / proc 0 0 0 - /proc sysfs 0 0 0 - /sys devpts 0 0 0 - /dev/pts /dev/xvda1 99M 29M 66M 31% /boot tmpfs 151M 0 151M 0% /dev/shm none 0 0 0 - /proc/sys/fs/binfmt_misc sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs /dev/xvdb1 6.9G 144M 6.4G 3% /home [root@MyVPS ~]# echo "/dev/xvdb1 /home ext3 defaults 1 2" >> /etc/fstab //*添加开机自动挂载*// //*S4 Did For AoyoHost*//还有详细的操作图
2012年12月19日
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