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Linux 挂载有LVM的硬盘过程
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有两台linux，其中一台坏了，然后我将坏掉这台机器的硬盘挂到另外一台机器上了，我希望看到坏了这台机器的/tmp目录下的文件。
整个过程如下：
ogin as: root
root@XX.XX.XX.XX‘s password:
Last login: Fri Dec 5 14:47:42 2014 from chengmanyu.asiapacific.cpqcorp.net
[root@localhost ~]# fdisk -l
Disk /dev/sda: 21.5 GB, 21474836480 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0003008c
Device Boot Start End Blocks Id System
/dev/sda1 * 2 501 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 502 20480 20458496 8e Linux LVM
Partition 2 does not end on cylinder boundary.
Disk /dev/mapper/VolGroup-lv_root: 18.8 GB, 18832424960 bytes
255 heads, 63 sectors/track, 2289 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
Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 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
Disk /dev/sdb: 21.5 GB, 21474836480 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00042f63
Device Boot Start End Blocks Id System
/dev/sdb1 * 2 501 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2 502 20480 20458496 8e Linux LVM
Partition 2 does not end on cylinder boundary.
[root@localhost ~]# vgdisplay
WARNING: Duplicate VG name VolGroup: Existing 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6 (created here) takes precedence over Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
WARNING: Duplicate VG name VolGroup: Existing 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6 (created here) takes precedence over Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
WARNING: Duplicate VG name VolGroup: Existing Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9 (created here) takes precedence over 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6
--- Volume group ---
VG Name VolGroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 0 / 0
VG UUID Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
WARNING: Duplicate VG name VolGroup: Existing 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6 (created here) takes precedence over Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
--- Volume group ---
VG Name VolGroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 0 / 0
VG UUID 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6
[root@localhost ~]# vgrename Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9 VolGroup1
WARNING: Duplicate VG name VolGroup: Existing 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6 (created here) takes precedence over Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
WARNING: Duplicate VG name VolGroup: Existing 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6 (created here) takes precedence over Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
WARNING: Duplicate VG name VolGroup: Existing Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9 (created here) takes precedence over 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6
Volume group "VolGroup" successfully renamed to "VolGroup1"
[root@localhost ~]# lvscan
inactive ‘/dev/VolGroup1/lv_root‘ [17.54 GiB] inherit
inactive ‘/dev/VolGroup1/lv_swap‘ [1.97 GiB] inherit
ACTIVE ‘/dev/VolGroup/lv_root‘ [17.54 GiB] inherit
ACTIVE ‘/dev/VolGroup/lv_swap‘ [1.97 GiB] inherit
[root@localhost ~]# vgdisplay
--- Volume group ---
VG Name VolGroup1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 0 / 0
VG UUID Y5536Q-Kcui-bjhl-S6Oz-DaUq-f5Of-jaM3r9
--- Volume group ---
VG Name VolGroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 0 / 0
VG UUID 4zNT0y-RPZo-tExT-E1Io-vtT8-BuPa-H23BR6
[root@localhost ~]# vgchange -a y /dev/VolGroup1
2 logical volume(s) in volume group "VolGroup1" now active
[root@localhost ~]# lvscan
ACTIVE ‘/dev/VolGroup1/lv_root‘ [17.54 GiB] inherit
ACTIVE ‘/dev/VolGroup1/lv_swap‘ [1.97 GiB] inherit
ACTIVE ‘/dev/VolGroup/lv_root‘ [17.54 GiB] inherit
ACTIVE ‘/dev/VolGroup/lv_swap‘ [1.97 GiB] inherit
[root@localhost ~]# mount /dev/VolGroup1/lv_root /mnt
[root@localhost ~]# cd /mnt
[root@localhost mnt]# ls
admintools cgroup home lost+found net root srv user
bin dev lib media opt sbin sys usr
boot etc lib64 misc proc selinux tmp var
[root@localhost mnt]# cd ./tmp/
[root@localhost tmp]# ls
cim_schema.eiTNW pulse-RppuNjTCVDM1 vmware-root
orbit-gdm sendmail.cf VMwareTools-8.3.12-493255.tar.gz
passwd sendmail.cf.1 vmware-tools-distrib
passwd.tmp test.txt yum.log
passwd.tmp.1 virtual-root.VYrCzD
pulse-Msfyk93SgAX9 vmware-config0
[root@localhost tmp]#
本文出自 “盛满鱼” 博客，请务必保留此出处http://chengmanyu.blog.51cto.com/7198694/1587517
原文：http://chengmanyu.blog.51cto.com/7198694/1587517
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