为什么 Debian 中的 fdisk 在显示磁盘分区信息时会包含 LVM 逻辑卷？
我讨厌这个垃圾信息：Disk /dev/dm-0 doesn't contain a valid partition table
例如在我的 Debian 6.0 虚拟机中：
[root@linux-x64:~]# fdisk -v
fdisk (util-linux-ng 2.16.2)
[root@linux-x64:~]# fdisk -l
Disk /dev/sda: 17.2 GB, 17171480576 bytes
255 heads, 63 sectors/track, 2087 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000a318a
Device Boot Start End Blocks Id System
/dev/sda1 * 1 15 120456 83 Linux
/dev/sda2 16 127 899640 82 Linux swap / Solaris
/dev/sda3 128 2087 15743700 8e Linux LVM
Disk /dev/dm-0: 3997 MB, 3997171712 bytes
255 heads, 63 sectors/track, 485 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/dm-0 doesn't contain a valid partition table
但是为什么 RedHat 中的低版本 fdisk 就很聪明：
[root@rhel ~]# fdisk -v
fdisk (util-linux 2.13-pre7)
[root@rhel ~]# fdisk -l
Disk /dev/sda: 146.1 GB, 146163105792 bytes
255 heads, 63 sectors/track, 17769 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 17769 142625070 8e Linux LVM
Disk /dev/sdb: 292.3 GB, 292326211584 bytes
255 heads, 63 sectors/track, 35539 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 35539 285466986 8e Linux LVM
--
Dongsheng
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