Dmitri -

Thank you for your prompt response.  Proserver is a data backup server 
from Code42 (code42.com).  In this case, the installation is relatively 
old (2 years?) and I'm sure that more modern versions comply better with 
standard coding practices.

I had begun to suspect this process as the problem, too.  I'll disable 
it before attempting to upgrade again.

Thanks again for your help!

sincerely,

Eric Lobenstine
Chemistry Dept.
University of Rochester.

On 5/22/2018 8:05 AM, Dimitri John Ledkov wrote:
> Problem is not with mdadm at all, that configured fine.
>
> The problem is with init.d script proserver, which is missing LSB
> headers and thus cannot be ordered due to a circular dependency.
>
> I do not know what proserver, is. But please either fix it by adding LSB
> headers, or remove/disable it for the upgrade.
>
> insserv: warning: script 'S99proserver' missing LSB tags and overrides
> insserv: warning: script 'proserver' missing LSB tags and overrides
> insserv: There is a loop between service grub-common and procps if started
> insserv:  loop involving service procps at depth 2
> insserv:  loop involving service udev at depth 1
> insserv: There is a loop at service grub-common if started
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Max recursions depth 99 reached
> insserv:  loop involving service uuidd at depth 1
> insserv: There is a loop between service proserver and hwclock if started
> insserv:  loop involving service hwclock at depth 1
> insserv: There is a loop at service proserver if started
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv:  loop involving service networking at depth 4
> insserv:  loop involving service checkroot at depth 4
> insserv:  loop involving service mountdevsubfs at depth 2
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: There is a loop between service grub-common and urandom if started
> insserv:  loop involving service urandom at depth 4
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: Starting proserver depends on grub-common and therefore on system 
> facility `$all' which can not be true!
> insserv: There is a loop between service proserver and dns-clean if started
> insserv:  loop involving service dns-clean at depth 1
> insserv: exiting now without changing boot order!
>
> ** Changed in: mdadm (Ubuntu)
>         Status: New => Invalid
>

-- 
Eric Lobenstine, Ph.D.
Manager of Computers and Network
Chemistry Dept., Univ. of Rochester
[email protected]
585-275-0340

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Title:
  trying to update EOL 15.10 using old-releases.ubuntu.com

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