Fwd: 15.10 fails to boot thin-LVM

[Xen]

Here I thought I was getting an actual answer ;-).

This sending people from the cabin to the wall doesn't really help. My 
question was a user support question, not a developer question. There are 
rarely any questions like this on the dev list, there are rarely any 
emails at all anyway, except for very technical or development-central 
themes.

Such as review requests and all, and messages about integration work.

You can also see that you did forward it but no one responded.

You might imagine a developer saying "This is not really a developer 
question, perhaps you should send it to the user support list." And so we 
go....

This separation of users and developers is not really helpful particularly 
as many of the "15.10 releases" are very public and apparently offered in 
such a way as to raise interest in using and downloading them, and rightly 
so perhaps. On .. Well. If you create alpha and beta releases you should 
expect downloads and feedback. If you then do not provide any channel for 
communication about it, from the perspective of someone who is actually 
trying it....

And most very likely the exact same thing that I wrote about would be true 
for 14.10 and 15.04. Would that be any different?. Except that on 15.10, 
it might be easier to fix and it has more of a forward notion that there 
might be an interest in including it once a solution has been seen. But to 
a dev list I can only say

Would there be an interest in including this support?.




  On Fri, 28 Aug 2015, Myriam Schweingruber wrote:

> I am pretty sure that these questions are better addressed to the
> kubuntu-devel list, as you are using an unreleased version and I doubt
> this should go to the user support list.
>
> Regards, Myriam
>
>
> ---------- Forwarded message ----------
> From: Xen <list at xenhideout.nl>
> Date: Fri, Aug 28, 2015 at 9:38 PM
> Subject: 15.10 fails to boot thin-LVM
> To: kubuntu-users at lists.ubuntu.com
>
>
>
> I have a 15.10 install that I copied onto a thinly provisioned LVM.
> After this change, the system wouldn't boot anymore. I'm not sure
> about the exact error messages at this point, but suffice to say for
> now that there were errors about the thin-volumes not being able to be
> loaded. This may actually have to do with the package
> thin-provisioning-tools not being installed by default, or not being
> included in the initrd.
>
> I can't regen my initrd at this point due to the other problem of not
> being able to chroot into my install. I will have to boot it from a
> regular partition, try to regen the initrd (how can I do that if it
> won't know I'll need it?) and then boot from there when the thing is
> copied back onto the thin.
>
> It is because activating a thin-volume will try to use thin_check and
> if it's not there, it will fail :(. A pretty bad dependency, I must
> say.
>
> But it's the same as cryptsetup... I think it really needs thin_check
> in the initrd to even begin loading the volumes.
>
> Does anyone have a recipe for getting this working?
>
> I can
> - boot the system from a regular partition
> - install the package from there
> -
> - regenerate the initrd and install it
>
> What is the third step? Will it work automatically? Do I need to
> provide a hook for initramfs-tools or something?.
>
> Regards, Bart
>
>
> ps. I would also suggest to add thin-provisioning-tools to the base
> image of Kubuntu.
>
> https://github.com/igorpecovnik/lib/issues/50
>
>
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