Re: [screen-devel] Current screen HEAD can't reattach to a detached screen 4.0.3

[richo]

On 19/11/11 09:26 +0100, Axel Beckert wrote:
> Hi,
>
> On Sat, Nov 19, 2011 at 02:27:50PM +1100, richo wrote:
> > What about the obvious, just keep a 4.03 binary around while you do the
> > upgrade.
>
> Well, the thing with it is that it's not that obvious. So thanks for
> the idea! :-)
>
> The 4.0.3 and 4.1.0 debian packages can't be installed at the same
> time as of now. I'll think about how I can implement this. It's not
> trivial, but doable.
>
> Grub did something similar for the grub1 to grub2 update. And I can
> check if screen sessions are running and do a normal upgrade if not.
>
> The other idea I had was to refuse the upgrade as long as a screen is
> running in a way that all packages except screen are upgraded until
> the screen session is closed.
>
>                 Kind regards, Axel

I would literally just keep a copy of the binary. Don't worry about trying to
keep both versions installed ala gentoo slots, I think you'll just make more
headaches for yourself.

you could be very sneaky and do something like

for i in `dpkg -L screen`; do
    mkdir -p `dirname $i`
    cp $i /tmp/screen_backup/$i
done

to make a backup of everything that the screen package installs in case it
all goes really pearshaped.

Let me know how you go. I've switched to tmux now (ironically, doing the
screen upgrade in tmux would also work pretty well..) but I may do a trial
upgrade of screen just out of curiosity.

Cheers

richo
--
richo || Today's excuse:

Jan  9 16:41:27 huber su: 'su root' succeeded for .... on /dev/pts/1
http://blog.psych0tik.net

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