[yocto] assembling lvm disk images

[Schmitt, Richard]

Not sure the type of lvm you're trying to use, but we successfully build a dm-verity rootfs offline.  

It probably is specific to what type of lvm you are using.

Rich

-----Original Message-----
From: yocto-bounces at yoctoproject.org <yocto-bounces at yoctoproject.org> On Behalf Of Brad Bishop
Sent: Thursday, August 22, 2019 9:13 AM
To: OpenBMC Maillist <openbmc at lists.ozlabs.org>; yocto at yoctoproject.org
Cc: Adriana Kobylak <anoo at us.ibm.com>
Subject: [yocto] assembling lvm disk images

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Does anyone have any experience with assembling an lvm disk image from a bitbake task?  My naiive approach to this would be to invent and implement an IMAGE_FSTYPE that builds up the image in a do_image_foo task.

But the LVM userspace tools don’t do offline mode so this seems to require  
the use of things like loopback devices and sudo.  Is that a can of worms?   
Does anyone have any advice on how to do something like this?  Pointers to something similar?

thx!

brad
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