Comments on: How To Use UUID To Mount Partitions / Volumes Under Ubuntu Linux http://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/ Every answer asks a more beautiful question. Fri, 10 Feb 2012 19:55:56 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Decaffienated46http://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-63036 Decaffienated46 Sat, 01 Oct 2011 09:03:22 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-63036 Paul, The main importance of UUID is for mounting a specific device to a specific mount-point reliably. In a terminal to use your example you would still type: # dd if= of= where you mount sdb1. During the boot process, you have much more accurate mounting if you use: UUID=8c2da865-13f4-47a2-9c92-2**FNA**&%#$**34 ext4 /office-docs rw,defaults 0 2 . This will ALWAYS mount that device at /office-docs. If you use a line in etc/fstab like: /dev/sdd1 /office-docs ext4 /office-docs defaults,rw 0 2 there is a possibility that another hdd may be recognized as /dev/sdd1 and therefore be mounted at /office-docs. Once boot-up is complete, you will still use the same commands as always (always referencing mounted devices just like you have been doing). HTH, Decaffienated46 Paul,
The main importance of UUID is for mounting a specific device to a specific mount-point reliably. In a terminal to use your example you would still type: # dd if= of= where you mount sdb1.
During the boot process, you have much more accurate mounting if you use:
UUID=8c2da865-13f4-47a2-9c92-2**FNA**&%#$**34 ext4 /office-docs rw,defaults 0 2 .
This will ALWAYS mount that device at /office-docs. If you use a line in etc/fstab like:
/dev/sdd1 /office-docs ext4 /office-docs defaults,rw 0 2 there is a possibility that another hdd may be recognized as /dev/sdd1 and therefore be mounted at /office-docs.
Once boot-up is complete, you will still use the same commands as always (always referencing mounted devices just like you have been doing).
HTH,
Decaffienated46

]]> By: paulhttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-62205 paul Tue, 06 Sep 2011 21:25:04 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-62205 Forgive my ignorance with the whole UUID thing. I understand it is superior in many ways, hence the switch. However does this mean that anything to do with hard-drives / flash drives / CD & DVD bays involving the terminal is going to be a complete pain in the arse? For instance, to write an image to disk, I can currently use something like: # dd if= of=sdb1 But now I must type: # dd if= of=8c2da865-13f4-47a2-9c92-2**FNA**&%#$**34 ??? Or is there something to this whole "upgrade" process that I'm not understanding? Thanks Forgive my ignorance with the whole UUID thing. I understand it is superior in many ways, hence the switch.
However does this mean that anything to do with hard-drives / flash drives / CD & DVD bays involving the terminal is going to be a complete pain in the arse?
For instance, to write an image to disk, I can currently use something like:
# dd if= of=sdb1
But now I must type:
# dd if= of=8c2da865-13f4-47a2-9c92-2**FNA**&%#$**34 ???
Or is there something to this whole “upgrade” process that I’m not understanding?
Thanks

]]> By: nikuhttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-59828 niku Mon, 06 Jun 2011 17:33:36 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-59828 ls -l /dev/disk/by-uuid/ ls -l /dev/disk/by-uuid/

]]> By: Alexhttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-47231 Alex Fri, 07 May 2010 09:59:01 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-47231 as of ubuntu 10.04 i found out that vol_id does not exist anymore ( https://bugs.launchpad.net/ubuntu/+source/unetbootin/+bug/376339 ) . now "blkid" should be used instead. as of ubuntu 10.04 i found out that vol_id does not exist anymore
( https://bugs.launchpad.net/ubuntu/+source/unetbootin/+bug/376339 ) .

now “blkid” should be used instead.

]]> By: unixadmin007http://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-46533 unixadmin007 Mon, 22 Mar 2010 00:47:04 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-46533 I have a UBUNTU server, recently i cloned the disk using dd and kept the second disk in box itself. yesterday i realized that because of UUID features it generated same UUID to my /dev/sdb partitions and it looks like it is using the mix of first disk and second disk. I have a UBUNTU server, recently i cloned the disk using dd and kept the second disk in box itself. yesterday i realized that because of UUID features it generated same UUID to my /dev/sdb partitions and it looks like it is using the mix of first disk and second disk.

]]> By: SShttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-43688 SS Mon, 14 Sep 2009 13:24:46 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-43688 Thats a good description. Thankyou Thats a good description.
Thankyou

]]> By: Williehttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-41650 Willie Mon, 18 May 2009 02:06:37 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-41650 I have been trying to figure out what happen to my UUID's on my server, thanks a lot for the help. Now I can change everything to ext4 on my laptop. I have been trying to figure out what happen to my UUID’s on my server, thanks a lot for the help. Now I can change everything to ext4 on my laptop.

]]> By: roothttp://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/#comment-41309 root Thu, 23 Apr 2009 04:18:00 +0000 http://www.cyberciti.biz/faq/?p=1908#comment-41309 man tune2fs man tune2fs

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