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<p>I'm adding this for completeness, but this is not a practical
solution:<br>
</p>
<p>There is a way of getting ChimeraX 1.4 to run on CentOS 7 that we
do NOT support. There are two steps required: (1) you have to
update the kernel to a newer version. That can be done with the
elrepo-kernel repository. And (2) you need a newer versions of
various system libraries. That can be done with by using a
CentOS/RHEL 8 or 9 singularity container that has the same
graphics driver as the CentOS 7 system and has the corresponding
ChimeraX rpm installed.<br>
</p>
<p>So, unless it is your personal computer, that you could update to
CentOS/RHEL 8 or 9 anyway, it is extremely unlikely that the
system administrators will be willing to change to an unsupported
kernel. But just in case, an example singularity definition file
is attached. I was testing in a virtual machine using VMware
Workstation, which is why the VMware graphics driver is
installed. Once you have the singularity container, I'd recommend
making a chimerax alias. For example:</p>
<p> alias chimerax="singularity run /PATH/chimerax.el8.sil"</p>
<p>So there you have it. It is technically possible, And don't
forgot to regularly regenerate the singularity container to pick
up security fixes.<br>
</p>
<p> -- Greg<br>
</p>
<div class="moz-cite-prefix">On 6/16/2022 4:32 AM, Ricardo Righetto
via ChimeraX-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAB7-Rrvp9gy4HWhae8iovx_iCAKghNvb4oxF6zkHdwEOLQAfpA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>Dear Tristan, dear Tom,</div>
<div><br>
</div>
<div>Thank you very much for the answers, I can totally
understand the situation. Hopefully we can upgrade the distro
on our cluster soon, until then we stick to 1.3 there.<br>
</div>
<div><br>
</div>
<div>Best wishes,<br>
</div>
<div>
<div>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature"><br>
--<br>
Ricardo Diogo Righetto<br>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Em qua., 15 de jun. de 2022 às
18:53, Tom Goddard <<a href="mailto:goddard@sonic.net"
moz-do-not-send="true" class="moz-txt-link-freetext">goddard@sonic.net</a>>
escreveu:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div style="overflow-wrap: break-word;">Tristan is right.
ChimeraX is not available for CentOS 7 or Ubuntu 16 or 18
because the Qt 6 window toolkit does not support those old
Linux operating systems and ChimeraX 1.4 uses Qt 6. So
ChimeraX 1.3 is the last release that can be used with those
operating systems.
<div><br>
</div>
<div>Greg Couch on the ChimeraX developer team tried
compiling Qt 6 for CentOS 7, and tried making a Docker
image, a Singularity image, and a Flatpak. None of these
worked. Because the Qt window toolkit is a much bigger
package than the entire ChimeraX project we don't have the
programmers to make Qt work on old Linux versions if the
Qt Company chooses not to support old Linux.</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>Tom</div>
<div><br>
<div><br>
<blockquote type="cite">
<div>On Jun 15, 2022, at 8:22 AM, Tristan Croll via
ChimeraX-users <<a
href="mailto:chimerax-users@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">chimerax-users@cgl.ucsf.edu</a>>
wrote:</div>
<br>
<div>
<div
style="font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt">Sadly,
this is going to become a theme for virtually all
scientific packages using (Py)Qt for their GUI.
The Qt company have decided to stop supporting the
free version of Qt5, pushing all developers other
than those who can afford the license fees on to
Qt6 (which does not run in CentOS 7). It's a real
pain, but that's just the way things are.</div>
<div
style="font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt"><br>
</div>
<div
style="font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt">--
Tristan</div>
<hr
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline-block;width:723.234px"><span
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline"></span>
<div id="gmail-m_119623489516690756divRplyFwdMsg"
dir="ltr"
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><font
style="font-size:11pt" face="Calibri,
sans-serif"><b>From:</b><span> </span>ChimeraX-users
<<a
href="mailto:chimerax-users-bounces@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">chimerax-users-bounces@cgl.ucsf.edu</a>>
on behalf of Ricardo Righetto via ChimeraX-users
<<a href="mailto:chimerax-users@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">chimerax-users@cgl.ucsf.edu</a>><br>
<b>Sent:</b><span> </span>15 June 2022 15:58<br>
<b>To:</b><span> </span><a
href="mailto:chimerax-users@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">chimerax-users@cgl.ucsf.edu</a>
<<a href="mailto:chimerax-users@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">chimerax-users@cgl.ucsf.edu</a>><br>
<b>Subject:</b><span> </span>[chimerax-users]
Version 1.4 for CentOS 7?</font>
<div> </div>
</div>
<div
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">
<div dir="ltr">
<div>Hi,</div>
<div><br>
</div>
<div>First, apologies if this has already been
announced elsewhere.<br>
</div>
<div>I see on the download webpage that there is
no production release for CentOS 7 and the
latest daily release for this platform was
built on 2022-05-06. Any chance we could get a
production release of 1.4 and/or a newer daily
build for CentOS 7?</div>
<div><br>
</div>
<div>Thank you very much!</div>
<div><br>
</div>
<div dir="ltr">Best wishes,</div>
<div dir="ltr"><br>
--<br>
Ricardo Diogo Righetto<br>
</div>
</div>
</div>
<span
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">_______________________________________________</span><br
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<span
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline">ChimeraX-users
mailing list</span><br
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<span
style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline"><a
href="mailto:ChimeraX-users@cgl.ucsf.edu"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">ChimeraX-users@cgl.ucsf.edu</a></span><br
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<span
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</blockquote>
</div>
<br>
</div>
</div>
</blockquote>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
ChimeraX-users mailing list
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Manage subscription:
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</pre>
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