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Re: parted 2.1 crash with (encrypted) Apple Core Storage partition

From: Jim Meyering
Subject: Re: parted 2.1 crash with (encrypted) Apple Core Storage partition
Date: Thu, 09 Feb 2012 06:44:13 +0100

Chris Murphy wrote:
> On Feb 8, 2012, at 1:59 PM, Jim Meyering wrote:
>> Now that I think of it, I'll bet this is an instance of that wrapped
>> partition.  You've probably triggered an excursion into libparted code
>> that is rarely used, to handle that wrapped/encrypted partition.
> Does btrfs support sparse files?


> I don't know how Apple's encrypted core storage scheme works, but
> security wise it *ought* to fill that logical volume with random data
> where there wouldn't otherwise be encrypted data. This is unlikely to
> be very compressible, it's about 80G worth of data on that partition,
> in that case. Otherwise, it's around 6G compressed.
> Copying the whole disk would probably be pretty big, as there are
> three operating systems on the disk. I'm thinking you may only want
> the encrypted partition. This would be much easier if 10.7 ran in
> VirtualBox.

You're right that I may be able to reproduce simply with one
of those encrypted partitions.  Can you create a minimal one and send it?

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