linux-ext4 - Re: [PATCH] libblkid: support for GUID Partition Table (GPT), please?

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Date:	Mon, 17 May 2010 11:47:53 +0200
From:	Karel Zak <kzak@...hat.com>
To:	Ivan Shmakov <oneingray@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] libblkid: support for GUID Partition Table (GPT),
	please?

On Sat, May 15, 2010 at 10:06:23AM +0700, Ivan Shmakov wrote:
> >>>>> "IS" == Ivan Shmakov <ivan@...n.uusia.org> writes:
> 
>  IS> GPT contains a supposed to be unique “Disk GUID” field, which
>  IS> allows for the media bearing such a partition table to be
>  IS> identified.

 The devel version of libblkid from util-linux-ng supports partition tables
 parsing, and the partition name (GPT nad Mac) and partition UUID (only GPT)
 are exported to udev. For example:

   # blkid -p -o udev /dev/sdb1
   ID_PART_ENTRY_SCHEME=gpt
   ID_PART_ENTRY_NAME=ThisIsName
   ID_PART_ENTRY_UUID=bc10cf1d-7e63-524c-8203-087ae10a820b
   ID_PART_ENTRY_TYPE=a2a0d0eb-e5b9-3344-87c0-68b6b72699c7
   ID_PART_ENTRY_NUMBER=1

 In my TODO list is to support partition identifiers for standard
 operations like mount/fsck, something like:

   # mount PARTUUID=bc10cf1d-7e63-524c-8203-087ae10a820b /mnt
 or
   # mount PARTLABEL=ThisIsName /mnt
 
 Comments?

    Karel

-- 
 Karel Zak  <kzak@...hat.com>
 http://karelzak.blogspot.com
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