"Cannot find unused qid!" when restoring backup

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Jeremy Rand

未读,
2016年12月13日 00:30:282016/12/13
收件人 qubes-users
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I just tried to restore 5 VM's from a backup. The backup was made on
Qubes 3.0; I'm restoring to Qubes 3.2. All 5 VM's fail to restore
with this error (although of course the name of the VM in the error
message varies depending on what VM I'm trying to restore):

- -> Restoring QubesAppVm iso-linux...
ERROR: Cannot find unused qid!
*** Skipping VM: iso-linux

The error was copied by hand since copying from dom0 to an AppVM is
difficult, so there might be a typo. Based on the error message, I
infer that maybe this has something to do with my Qubes 3.2 system
having too many VM's on it already? Is that an accurate guess, or is
there a different reason for this error? Is there any workaround?

Cheers,
- -Jeremy
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Andrew David Wong

未读,
2016年12月13日 02:13:212016/12/13
收件人 jer...@veclabs.net、qubes-users
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On 2016-12-12 21:30, Jeremy Rand wrote:
> I just tried to restore 5 VM's from a backup. The backup was made on
> Qubes 3.0; I'm restoring to Qubes 3.2. All 5 VM's fail to restore
> with this error (although of course the name of the VM in the error
> message varies depending on what VM I'm trying to restore):
>
> -> Restoring QubesAppVm iso-linux...
> ERROR: Cannot find unused qid!
> *** Skipping VM: iso-linux
>
> The error was copied by hand since copying from dom0 to an AppVM is
> difficult, so there might be a typo. Based on the error message, I
> infer that maybe this has something to do with my Qubes 3.2 system
> having too many VM's on it already? Is that an accurate guess, or is
> there a different reason for this error? Is there any workaround?
>
> Cheers,
> -Jeremy
>

The only other case in which I've seen this happen is when a user
surpassed the maximum number of Qubes VMs (254):

https://groups.google.com/d/topic/qubes-users/Zw5XjZndrDo/discussion

Did you do the same?

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
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Jeremy Rand

未读,
2016年12月13日 15:57:012016/12/13
收件人 qubes...@googlegroups.com
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Hash: SHA512

Andrew David Wong:
> On 2016-12-12 21:30, Jeremy Rand wrote:
>> I just tried to restore 5 VM's from a backup. The backup was
>> made on Qubes 3.0; I'm restoring to Qubes 3.2. All 5 VM's fail
>> to restore with this error (although of course the name of the VM
>> in the error message varies depending on what VM I'm trying to
>> restore):
>
>> -> Restoring QubesAppVm iso-linux... ERROR: Cannot find unused
>> qid! *** Skipping VM: iso-linux
>
>> The error was copied by hand since copying from dom0 to an AppVM
>> is difficult, so there might be a typo. Based on the error
>> message, I infer that maybe this has something to do with my
>> Qubes 3.2 system having too many VM's on it already? Is that an
>> accurate guess, or is there a different reason for this error?
>> Is there any workaround?
>
>> Cheers, -Jeremy
>
>
> The only other case in which I've seen this happen is when a user
> surpassed the maximum number of Qubes VMs (254):
>
> https://groups.google.com/d/topic/qubes-users/Zw5XjZndrDo/discussion
>
> Did you do the same?

Looks like it. I just checked and the highest final IP address octet
is 253; add 1 for dom0 and it looks like I'm at the limit.

I realize I'm probably much more gluttonous with VM's than most users,
but is there by any chance any progress on increasing that limit?

Cheers,
- -Jeremy
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Andrew David Wong

未读,
2016年12月14日 09:41:142016/12/14
收件人 jer...@veclabs.net、qubes...@googlegroups.com
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> Cheers, -Jeremy
>

We can see if anyone's interested in providing a patch:

https://github.com/QubesOS/qubes-issues/issues/2519

Please understand that since this falls far outside of normal usage
patterns and affects only a small minority of users, it's going to be
a relatively low-priority issue. Therefore, it's unlikely that this
will be changed soon, unless it either turns out to be trivial to
change, or we receive a patch from the community.

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
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raah...@gmail.com

未读,
2016年12月22日 23:05:532016/12/22
收件人 qubes-users、jer...@veclabs.net、jerem...@airmail.cc

HOLY $#@! 250 something vms? wow qubes-manager on my machine would prolly crash haha.

Jeremy Rand

未读,
2016年12月23日 03:49:432016/12/23
收件人 qubes...@googlegroups.com
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Andrew David Wong:
Yes, totally understood -- seeing as I didn't pay anything for Qubes,
I certainly don't expect you to go out of your way to fix a minor
issue that so far has only affected 2 people.

Cheers,
- -Jeremy
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