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How best to wait for partition table kernel reload?

From: Harvey Chapman
Subject: How best to wait for partition table kernel reload?
Date: Tue, 22 Jun 2010 17:03:46 -0400

Summary: After using parted, the modified device files (/dev/sda1, etc.) have 
not been restored before the next line in a script trying to use them.

busybox-1.13.2   (using mdev with sequence numbers)

I have a bash script that resizes an NTFS partition using parted and 
ntfsresize. I seem to have a race condition where sometimes, the device files 
for the device just modifed have not yet been recreated before calling 
ntfsresize. Is there anything I can do about this? I did have a problem with 
mdev performing the hotplug actions out of order, but that seems to have been 
fixed. I don't really want to sprinkle sleeps all throughout my scripts either. 
I did that in one place, but on an older (read: slower) machine, that failed.

Is there a best practice way of doing this? Does anyone know how GParted 
handles this?

I don't have this problem with linux- and parted-1.8.9(ubuntu 8.10), 
but I'd like to upgrade to get bug fixes and features.

Thank you,

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