apt-get upgrade vs synaptic

[Brian Cluff]

I almost always run an upgrade twice just to make sure there wasn't an 
error that I missed.  Since I've been doing that I've never have a 
broken system when I reboot.
The vast majority of broken systems I've seen come from systems that for 
one reason or another only partially upgraded and then the machine was 
rebooted leaving it in a rather nasty state.  I've also noticed that a 
lot of the graphical package managers make that situation worse by 
telling you the system needs to be rebooted when the upgrade didn't 
finish successfully.

Brian Cluff

On 04/02/2015 10:03 AM, Stephen Partington wrote:
> As a result of this i usually run an apt-get update/upgrade after i
> successfully complete one just to make sure i didn't miss anything
> (might as well while i am there)
>
> On Thu, Apr 2, 2015 at 8:36 AM, Brian Cluff <brian at snaptek.com
> <mailto:brian at snaptek.com>> wrote:
>
>     The package system works by copying the database of available software
>     from the server to your computer.  At that moment all your packaging
>     software knows about is what is in it's local copy of the database.
>
>     You probably did one upgrade in synaptic based on a slightly older
>     version of the package database, and when that was done you got a
>     fresh copy of the database and were then able to upgrade to all the
>     changes that were made during the time between the first and second
>     time you downloaded the database.
>
>     It's also possible that there were simply new programs added while you
>     were doing the first upgrade.  There is so much software in the
>     repositories that it's extremely likely they are any moment
>     something you have loaded is getting updated.
>
>     Brian Cluff
>
>     On 04/01/2015 10:56 PM, Michael Havens wrote:
>
>         yeah. but why did apt-get upgrade it after I had already upgraded
>         with synaptic?
>
>         :-)~MIKE~(-:
>
>         On Wed, Apr 1, 2015 at 9:07 PM, James Mcphee <jmcphe at gmail.com
>         <mailto:jmcphe at gmail.com>
>         <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>> wrote:
>
>         the update refreshes your package cache.  that would mean there were
>         changes between the last time and this time you updated the cache.
>
>         On Wed, Apr 1, 2015 at 12:58 PM, Michael Havens
>         <bmike1 at gmail.com <mailto:bmike1 at gmail.com>
>         <mailto:bmike1 at gmail.com <mailto:bmike1 at gmail.com>>> wrote:
>
>         you know, I merrily did an upgrade with synaptic and the little icon
>         by the clock showed that all was well. for some reason I decided to
>         run 'apt-get update' 'apt-get upgrade' and more files upgraded.
>         why?? :-)~MIKE~(-:
>
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>         -- James McPhee jmcphe at gmail.com <mailto:jmcphe at gmail.com>
>         <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>
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> --
> A mouse trap, placed on top of your alarm clock, will prevent you from
> rolling over and going back to sleep after you hit the snooze button.
>
> Stephen
>
>
>
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