disappearing block devices using EFI Partitioning

[Igor Serebryany <igor47@moomers.org>]

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Hi, 

	I'm not sure if this is the right place to send this, but I'm
	not sure where else to send it...

	I've been having a problem where sometimes, creating a new partition
	(parted mkpart) using GPT disk label causes the block device for the
	previously created partition to disappear.

	Here is an example: http://pastebin.com/f3acd536
	You can see on line 15 that after the previous parted command,
	/dev/sda3 which existed on line 12 is gone. There are no messages in
	dmesg and the partition itself is still on the disk. 

	I am working on an automated partitioning too, and so I have seen
	this happen with a variety of partition layouts, disks and servers
	(although in slightly different ways each time). I have tried
	putting space between partitions, time between partition commands
	and other methods to no avail. A few hints on where to even begin
	debugging this would be great!

Thanks!
--Igor

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