PDA

View Full Version : What is /dev/md0



Wayne
7th September 2006, 05:09 AM
As the title says, when I run gparted it tells me I have an unallocated 512Mb partition called /dev/md0.

Also, when I look at the 'Devices' tab in System Monitor' there is one called 'sunprc' (rpc_pipefs)

What are all these weird devices?

Wayne

Dan
7th September 2006, 06:09 AM
I don't know, Wayne. And I can't really look at it right now. I'm not on the FC5 drive. I'm running on an Xubuntu LiveCD in a Motel room in Hugo Oklahoma. :eek:

Dan

EDIT: Early start tomorrow. Will check in the AM. 'Nite.

u-noneinc-s
7th September 2006, 01:19 PM
Multiple Device driver aka Linux Software Raid?

ccrvic
7th September 2006, 01:53 PM
As the title says, when I run gparted it tells me I have an unallocated 512Mb partition called /dev/md0.

What do you get from

cat /proc/mdstat

Vic.

Wayne
7th September 2006, 03:00 PM
What do you get from

cat /proc/mdstat

Vic.

Hi Vic,

[wayne@Merlin ~]$ cat /proc/mdstat
Personalities :
unused devices: <none>

Wayne

ccrvic
7th September 2006, 05:35 PM
[wayne@Merlin ~]$ cat /proc/mdstat
Personalities :
unused devices: <none>

Interesting. gparted thinks you've got a RAID device, but your kernel doesn't...

What do you get from "fdisk -l" ?

Vic.

65bones
7th September 2006, 10:23 PM
If you don't need it you can go to services and turn off mdmonitor and the one below that. I think that's the one, not sure as it's been a while but you can test it anyway by turning it off then reboot and see if it shows up afterwards.

Wayne
7th September 2006, 11:12 PM
Interesting. gparted thinks you've got a RAID device, but your kernel doesn't...

What do you get from "fdisk -l" ?

Vic.

[root@Merlin ~]# fdisk -l

Disk /dev/hda: 41.1 GB, 41174138880 bytes
255 heads, 63 sectors/track, 5005 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 784 6297448+ 83 Linux
/dev/hda2 785 5005 33905182+ 5 Extended
/dev/hda5 785 850 530113+ 82 Linux swap / Solaris
/dev/hda6 851 988 1108453+ 83 Linux
/dev/hda7 989 5005 32266521 83 Linux

Disk /dev/hdb: 82.3 GB, 82348277760 bytes
255 heads, 63 sectors/track, 10011 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 1 3304 26539348+ 83 Linux
/dev/hdb2 3305 10012 53878829 5 Extended
/dev/hdb5 3305 10012 53878828+ 83 Linux

Wayne

Wayne
7th September 2006, 11:13 PM
If you don't need it you can go to services and turn off mdmonitor and the one below that. I think that's the one, not sure as it's been a while but you can test it anyway by turning it off then reboot and see if it shows up afterwards.

The one below was already off but I turned off mdmonitor. Going to reboot and get my morning dose of caffeine. Thanks for the help guys.

Wayne :eek:

Wayne
7th September 2006, 11:27 PM
It's still there. It's no biggie, I just thought it odd that the system would report on things I didn't have. If only it could report I had a million pounds in the bank :D Perhaps it's a bug in gparted or something. At least I found another service I could stop!

Wayne

ccrvic
8th September 2006, 08:17 AM
Perhaps it's a bug in gparted or something.

Does rather look like it...

Have you filed a bug report?

Vic.