Hi Carlos,

We had the same problem trying to install ARP/wARP on our Debian 10
machines. TL;DR: you (or your sysadmin, since this requires root access)
have to enable vsyscall as follows:

echo 'GRUB_CMDLINE_LINUX_DEFAULT="vsyscall=emulate"' >> /etc/default/grub
update-grub
reboot

An explainer (mostly from our sysadmin):

vsyscall is a mechanism that accelerates certain system calls in Linux,
apparently added as a way to execute specific system calls that don't need
any real level of privilege to run. It's currently considered not very
secure, which is why it's deactivated in many recent Linux flavors,
including apparently Debian 10. The vsyscall = emulate setting seems to be
the safest way to have vsyscall enabled while minimizing security
vulnerability. Still, it seems like the best way to move forward is to
compile the next version of ARP/wARP with the newer version of glibc. (some
key insights obtained from this GitHub post and ones around it:
https://github.com/microsoft/WSL/issues/1462#issuecomment-274398213

Hope this helps!
Art


> On Thu, Sep 3, 2020 at 8:34 AM Carlos Kikuti <[email protected]> wrote:
>
>> Dear CCP4BB,
>>
>> I am unable to install ARP/WARP on a server with Debian 10, it says:
>>
>> Segmentation fault
>> *** ERROR ***
>> This machine cannot run ARP/wARP executables that
>> are statically linked to glibc.
>>
>>     *** INSTALLATION OF ARP/wARP 8.0 FAILED ***
>> Modified version exit status 1
>>
>> -- after some digging I found several old, unsolved issues about that in
>> GitHub, any ideas about how to get around?
>>
>>
>>
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-- 
Artem Y. Lyubimov, PhD
Staff Scientist
SSRL SMB Crystallography
2525 Sand Hill Road mail stop 99
Menlo Park, CA 94025-7015
(415) 325-2057

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