Re: Cannot re-attach to screen session after screen-4.3.1-r1 to screen-4.4.0 upgrade

[Martin MOKREJŠ]

Hi Amadeusz,

Amadeusz Sławiński wrote:
> On Tue, 11 Apr 2017 13:44:32 +0200
> Martin MOKREJŠ <address@hidden> wrote:
> 
>> Hi,
>>   does anyone have a clue why I cannot re-attached to my existing screen 
>> sessions after upgrade?
>> I use "screeen -R $ID". What should I check?
>> Thanks,
>> Martin
>>
> 
> Hey,
> 
> yes there is incompatibility between those versions, from release message 
> (http://lists.gnu.org/archive/html/screen-devel/2016-06/msg00000.html)
> 
> "Do note that there was fix to screen message structure field
> responsible for $TERM handling, which makes it impossible to attach to
> older versions (hence minor version bump)."
> 
> You can try to attach by using /proc/$SCREENPID/exe -x

I get permission denied. I got some new screen session when I executed it as 
root, but I certainly did not enter my user's session.

I just opened https://bugs.gentoo.org/show_bug.cgi?id=615266 and asked for 
restoring of the 4.3.1-r1 version, at least for a while.

I compiled manually from original tarball but it did not work as I cannot 
specify path to the directory with sockets on the command line.

I have /tmp/screen/S-${username} but self-compiled vanilla screen looked for 
/tmp/uscreens/S-${username}. The Gentoo documentation says 
/var/run/screen/S-${username} and 
https://bugs.gentoo.org/show_bug.cgi?id=591772 proposes $HOME/.screen/.

Seems easiest is to restore the package for the time being.

Thanks!
Martin