device label being shown none

[Kaushal Shriyan]

2010/5/13 Andreas Olsson <andreas at arrakis.se>:
> tor 2010-05-13 klockan 10:21 -0700 skrev Kaushal Shriyan:
>> 2010/5/13 Andreas Olsson <andol at ubuntu.com>:
>> > tor 2010-05-13 klockan 10:01 -0700 skrev Kaushal Shriyan:
>> >> Any clue about the device label being shown "none" as below on Ubuntu
>> >> 10.04 Server. ?
>> >>
>> >> /dev/sda1      xfs    447G  650M  446G   1% /
>> >> none      devtmpfs     36G  216K   36G   1% /dev
>> >> none         tmpfs     36G     0   36G   0% /dev/shm
>> >> none         tmpfs     36G   36K   36G   1% /var/run
>> >> none         tmpfs     36G     0   36G   0% /var/lock
>> >> none         tmpfs     36G     0   36G   0% /lib/init/rw
>> >> /dev/sda3     ext3    489M   27M  437M   6% /boot
>> >>
>> >> Please suggest.
>> >
>> > Note the file system type.
>> >
>> >  http://en.wikipedia.org/wiki/Tmpfs
>> >
>> On a 8.04 Ubuntu Server, its properly labelled
>>
>> Filesystem            Size  Used Avail Use% Mounted on
>> /dev/sda1             461G  118G  343G  26% /
>> varrun                4.0G   72K  4.0G   1% /var/run
>> varlock               4.0G     0  4.0G   0% /var/lock
>> udev                  4.0G   32K  4.0G   1% /dev
>> devshm                4.0G     0  4.0G   0% /dev/shm
>> lrm                   4.0G   43M  3.9G   2%
>> /lib/modules/2.6.24-16-generic/volatile
>> /dev/sda5             464M   28M  412M   7% /boot
>>
>> but on 10.04 Ubuntu Server, it shows as none
>>
>> Please explain me the difference
>
> Actually, I am more curious for you to explain the difference to me. As
> you refer to the 8.04 names to being the proper ones you must have some
> basis for thinking that?
>
> Myself I don't see why the "device name" would matter for a tmpfs.
>
> // Andreas
>

Hi Andreas.

Apologies,I still have not understood.

On a 8.04 Ubuntu Server

Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/sda1      xfs    461G  118G  343G  26% /
varrun       tmpfs    4.0G   72K  4.0G   1% /var/run
varlock      tmpfs    4.0G     0  4.0G   0% /var/lock
udev         tmpfs    4.0G   32K  4.0G   1% /dev
devshm       tmpfs    4.0G     0  4.0G   0% /dev/shm
lrm          tmpfs    4.0G   43M  3.9G   2%
/lib/modules/2.6.24-16-generic/volatile
/dev/sda5     ext3    464M   28M  412M   7% /boot

On a 10.04 Ubuntu Server

Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/sda1      xfs    522G  645M  521G   1% /
none      devtmpfs     36G  224K   36G   1% /dev
none         tmpfs     36G     0   36G   0% /dev/shm
none         tmpfs     36G   36K   36G   1% /var/run
none         tmpfs     36G     0   36G   0% /var/lock
none         tmpfs     36G     0   36G   0% /lib/init/rw
none       debugfs    522G  645M  521G   1% /var/lib/ureadahead/debugfs
/dev/sda3     ext3    490M   27M  438M   6% /boot

Also I see the (none       debugfs    522G  645M  521G   1%
/var/lib/ureadahead/debugfs) and (/dev/sda1      xfs    522G  645M
521G   1% /) the same on Ubuntu server 10.04, Any clue ?

Thanks and Regards

Kaushal