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回复 7# taojie2000
系统内核没有编译过,我的理解是device-mapper是类似于sdd和lvm的一个管理组件,之所以报错,是因为装了这个东西,但是这个东西与sdd还有lvm有什么冲突,我这里就没有把握。
这里我在fdisk -l 输出
[root@localhost ~]# fdisk -l
Disk /dev/sda: 300.0 GB, 300000000000 bytes
255 heads, 63 sectors/track, 36472 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 36472 292856917+ 8e Linux LVM
Disk /dev/sdb: 300.0 GB, 300000000000 bytes
255 heads, 63 sectors/track, 36472 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 36472 292961308+ 8e Linux LVM
Disk /dev/sdc: 100.0 GB, 100000006144 bytes
255 heads, 63 sectors/track, 12157 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
Disk /dev/sdd: 100.0 GB, 100000006144 bytes
255 heads, 63 sectors/track, 12157 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
Disk /dev/vpatha: 100.0 GB, 100000006144 bytes
255 heads, 63 sectors/track, 12157 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
Disk /dev/dm-2: 75.1 GB, 75161927680 bytes
255 heads, 63 sectors/track, 9137 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-2 doesn't contain a valid partition table
上面加红的这句话,这两天一直没有理解,如何。
关于lvm减小lv正在做测试当中。 |
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