On Fri, Jun 07, 2013 at 07:27:00PM +0200, Gabriel de Perthuis wrote:
> ---
> v3: Call it ID_PART_TABLE_UUID in udev rules
>
> libblkid/src/partitions/gpt.c | 8 ++++----
> libblkid/src/partitions/partitions.c | 14 +++++++++++---
> misc-utils/blkid.c | 3 +++
> 3 files changed, 18 insertions(+), 7 deletions(-)
I have applied a little bit different version. Anyway, you have to
modify udevd to make it usable with in built-in blkid. It also
exports MBR ID (so the change is not GPT specific) as partition
table pseudo UUID. Examples:
# blkid -p -o udev /dev/sda
ID_PART_TABLE_UUID=3549290f-417c-4941-8503-f7835109b821
ID_PART_TABLE_TYPE=gpt
# blkid -p -o udev /dev/sdb
ID_PART_TABLE_UUID=54e743a7
ID_PART_TABLE_TYPE=dos
Note that I have also add support for Dos partitions pseudo-uuids. The
implementation is compatible with Linux kernel root=PARTUUID= command
line option.
The PARTUUID for Dos partitions is based on MBR Id and partition number,
for example:
# blkid /dev/sdb1
/dev/sdb1: TYPE="ext2" PARTUUID="54e743a7-01"
is the first partition on disk with PTUUID=54e743a7. So you can use
# mount PARTUUID="54e743a7-01" /mnt/test
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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