- A+
所属分类：Linux
前几天公司的一个Linux主机损坏了，为了不影响公司项目的正常运行，我把硬盘直接插到别的主机上。启动系统，发现又好几个驱动都没有，最主要的网卡驱动安装了半天也安装不上去。只好先把硬盘的数据迁移到另一个Linux主机上。
1.先创建临时挂载目录 # mkdir /mnt/bk 2.查看硬盘信息 # fdisk -l Disk /dev/sdb: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 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: 0x786c786c Device Boot Start End Blocks Id System /dev/sdb1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sdb2 64 38914 312057856 8e Linux LVM Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 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: 0x33c546ec Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 587 4194304 82 Linux swap / Solaris Partition 2 does not end on cylinder boundary. /dev/sda3 587 38914 307863552 83 Linux 如果磁盘分区是Linux可直接挂载这个分区 mount /dev/sda3 /mnt/bk 如果磁盘分区是Linux LVM直接挂载会报mount: unknown filesystem type 'LVM2_member' 解决方法：yum install lvm2 -y
3.查看物理卷 [root@localhost mnt]# pvs PV VG Fmt Attr PSize PFree /dev/sdb2 vg_dppctest lvm2 a--u 297.60g 0 4.查看卷组 [root@localhost mnt]# vgs VG #PV #LV #SN Attr VSize VFree vg_dppctest 1 3 0 wz--n- 297.60g 0 5.查看逻辑卷 [root@localhost mnt]# lvdisplay --- Logical volume --- LV Path /dev/vg_dppctest/lv_root LV Name lv_root VG Name vg_dppctest LV UUID mLUuCd-V665-yQV0-sWIW-W28N-5O5R-e1ikkB LV Write Access read/write LV Creation host, time dppcTest, 2014-08-08 22:52:07 +0800 LV Status NOT available LV Size 50.00 GiB Current LE 12800 Segments 1 Allocation inherit Read ahead sectors auto --- Logical volume --- LV Path /dev/vg_dppctest/lv_home LV Name lv_home VG Name vg_dppctest LV UUID 2ECyiG-Ysdh-jese-hLtV-wETB-XQxq-FdeSKO LV Write Access read/write LV Creation host, time dppcTest, 2014-08-08 22:52:18 +0800 LV Status NOT available LV Size 243.72 GiB Current LE 62393 Segments 1 Allocation inherit Read ahead sectors auto --- Logical volume --- LV Path /dev/vg_dppctest/lv_swap LV Name lv_swap VG Name vg_dppctest LV UUID OjBLkt-rsBx-NhYp-cOZc-XsOi-gey5-OcfKOm LV Write Access read/write LV Creation host, time dppcTest, 2014-08-08 22:53:13 +0800 LV Status NOT available LV Size 3.88 GiB Current LE 992 Segments 1 Allocation inherit Read ahead sectors auto 查看逻辑卷状态 LV Status NOT available，如果未激活需要激活一下，激活命令 [root@localhost mnt]# vgchange -ay /dev/vg_dppctest 3 logical volume(s) in volume group "vg_dppctest" now active 6.挂载逻辑卷 # mount /dev/vg_dppctest/lv_home /mnt/bk OK，现在就可以进/mnt/bk下查看之前硬盘的数据了！
