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From: "Eli Malul" <eli.malul@kaminario.com>
To: dm-devel@redhat.com
Subject: creating a cascaded linear devices fails
Date: Thu, 14 Apr 2011 12:06:26 +0300	[thread overview]
Message-ID: <E04C10E329E0CD40816C9C17AE53BBD3019D4988@kit001.kaminario.local> (raw)


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I do not understand why creating a linear device and then trying to
create another linear device on top of it fails.



1.       Creating a linear device over loop1:
===========================
dmsetup create linear_loop1 /tmp/linear_loop1

cat /tmp/linear_loop1
0 1000 linear /dev/loop1 0



2.       Then creating another linear device over this linear device:
=============================================
dmsetup create linear_loop2 /tmp/linear_loop2

device-mapper: reload ioctl failed: Invalid argument
Command failed

cat /tmp/klinear_loop2
0 1000 linear /dev/linear_loop1 0

 

Could you please explain what am I doing wrong?


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                 reply	other threads:[~2011-04-14  9:06 UTC|newest]

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