Upgrading over ssh and connection failure

Colin Law clanlaw at gmail.com
Mon Aug 13 07:54:28 UTC 2018

On Sun, 12 Aug 2018 at 20:36, J <dreadpiratejeff at gmail.com> wrote:

> On Sun, Aug 12, 2018 at 11:43 Nils Kassube <kassube at gmx.net> wrote:
>> Nils Kassube wrote:
>> > Colin Law wrote:
>> > > I have several systems that I access via ssh.  When I upgrade using
>> > > apt upgrade is there a danger of the upgrade seriously messing up if
>> > > the connection goes down in the middle of the operation, while
>> > > upgrading the kernel for example?  When I say say seriously messing
>> > > up I mean something like ending up with a non-bootable system.
>> >
>> > You should install the package "screen". If it finds the screen
>> > application, the upgrade command starts a screen session and you can
>> > continue an interrupted upgrade if you can connect to the machine
>> > again. It saved me a lot of work when I once accidentally broke the
>> > connection.
>> Please ignore the nonsense above - I mixed up apt upgrade with the
>> release upgrade. I'm sorry if I created some confusion.
> Perhaps. But doing updates over ssh in a screen session isn’t a bad idea
> in any case. If for no other reason than if you do, for some reason, lose
> the connection, it minimizes handed of fallout due to losing the session
> when the connection dies.

Thanks all for the suggestions.  I didn't know about screen so that is
something on my list to investigate.


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