Re: Utility to list /dev/nodes & serno's

[Antonio Huete Jimenez <ahuete.devel@xxxxxxxxx>]

K, I'm grabbing this submit.

Cheers,
Antonio Huete

2010/8/12 Dylan Reinhold <dylan@ocnetworking.com>:
> On 08/06/2010 01:27 PM, Matthew Dillon wrote:
>>
>> :Hi people,
>> :
>> :is there a way to easily list all disks and their associated serno's ?
>> :Something like 'blkid' utility of Linux, if you happen to know it.
>> :I could happily hack something like that, if we lack it.
>> :
>> :
>> :Cheers,
>> :Stathis
>>
>>    There isn't, and that would be cool.  It is fairly easy to match
>>    up device numbers from devfs.
>>
>>    You can use sysctl kern.disks output to get a list of disk devices,
>>    then you can scan /dev and pick those base names out and stat them,
>>    and you can scan /dev/serno and stat those babies and match up
>>    the st_rdev's with the ones from /dev to getting related serial
>>    numbers.
>>
>>    If we wanted to get more involved we could add an ioctl() to retrieve
>>    the serial number (if available), but it can definitely be scripted
>>    right now without that.
>>
>>                                        -Matt
>>                                        Matthew Dillon
>>                                        <dillon@backplane.com>
>
> I started a utility a while back going down a different path, I have now
> changed it to use the sysctl call like Matt pointed out.
> This is my first attempt to contribute a utility to DragonFly (or any
> project) so I'm looking for feedback.
> I have more error checking to add.
>
> I was not sure the best place for the code, so I created a new empty branch
> [devserno] on my leaf account with the code.
> http://gitweb.dragonflybsd.org/~dylan/dragonfly.git/commit/refs/heads/devserno
> And a tarball
> http://leaf.dragonflybsd.org/~dylan/devserno.tar.gz
>
> The program reads the rdev's from all files in /dev/serno (excluding any
> with a .) then reads the sysctl kern.disk and prints out the matches.
>
> This is the output from my system :
> $ ./devserno
> DEVICE          SERNO
> /dev/ad2        05008023
> /dev/ad4        JPB530HN256PBB
> /dev/ad6        WD-WXEZ07T50371
>
> Regards,
> Dylan
>
>



-- 
Cheers,
Antonio Huete