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Old 08-06-2010, 02:44 PM
fedora
 
Default what is dm-0 under /dev ?

The first device on a logical volume.

lvdisplay

suomi

On 08/06/2010 03:27 PM, Jatin K wrote:
> Dear all
>
> I have installed FC-13 on 10gb hdd it works fine, but when I run fdisk
> -l command , I got the following[1] result.... I don't know what is dm-0
> device under the /dev ...
>
> can anyone explain me
>
> [1]-----------------------------------------
> [root@lab1 ~]# fdisk -l
>
> Disk /dev/sda: 10.7 GB, 10737418240 bytes
> 255 heads, 63 sectors/track, 1305 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: 0x000cc564
>
> 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 96 256000 82 Linux swap / Solaris
> Partition 2 does not end on cylinder boundary.
> /dev/sda3 96 1306 9716736 8e Linux LVM
>
> Disk /dev/sdb: 10.7 GB, 10737418240 bytes
> 255 heads, 63 sectors/track, 1305 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 doesn't contain a valid partition table
>
> Disk /dev/dm-0: 9932 MB, 9932111872 bytes
> 255 heads, 63 sectors/track, 1207 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/dm-0 doesn't contain a valid partition table
> ----------------------------------------------------------------------------------------------------
>
> Warm Regards
>
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