what is UUID naming for devices?

[Brian Fahrlander]

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SteVe Cook wrote:
> Ari Sarkar wrote:
>> Hi all,
>>
>> I use ubuntu (and recently dual-boot with debian) since April this year.
>> I don't use windows anymore, in fact i don't need to. I've learned a lot
>> in Linux in these days. 
>> Recently I found in ubuntu "/etc/fstab", some UUID for my mounted
>> partition rather than "/dev/sda1" etc.
>>
>> I found in internet that it has some advantages.
>>
>> My question: I have a common partition for data (xfs formatted) which I
>> want to access from both ubuntu and debian. And that partition should
>> also automatically mount at boot with user can read/write without going
>> sudo.
>>
>> How can I achieve this using UUID naming at "/etc/fstab"?
>>
>> my current disk structure:
>> /dev/sda1: reiserfs (ubuntu)
>> /dev/sda2: swap (common)
>> /dev/sda3: reiserfs (debian)
>> /dev/sda4: xfs (common accessible partition)
>>
>> right now my fstab has the following line for xfs partition, what should
>> I change ?
>> /dev/sda4       /media/xfs      xfs     defaults    0  1
>> v
> 
> Can't really see any great advantage myself, just a lot of fiddling 
> around when a new hard disk is added. But
> 
> vol_id /dev/sda4
> 
> will give you the UUID, then you replace /dev/sda4 with
> 
> UUID=(result from vol_id)

    Ya mean like UUID=`vol_id` ?

    Man, I'm SUCH a Unix nerd...

- --
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 Brian Fahrländer                 Christian, Conservative, and Technomad
 Evansville, IN                              http://Fahrlander.net/brian
 ICQ: 5119262                         AOL/Yahoo/GoogleTalk: WheelDweller
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