[yt-users] Crashing PDFs and Login screen after Yt installation

Sun Aug 5 22:01:18 PDT 2012

Hi Nathan and Matthew

I was able to solve the difficulties with the installation of Yt+Enzo by
reinstalling everything in a /home/usr/local directory instead of the
/usr/local with root privileges. As I mentioned, in the root partition gave
me errors such as not been able to get a login screen etc, (even problems
with my wireless connection!!); so I decided to put everything in my HOME
directory.

More over, it is quite convenient here if new problems are added; as one
David Collins helped us (several students and me) at the National
Observatory of Mexico.

Although not the right forum here, I just want to let the Yt and Enzo
community that a postdoctoral position in astrophysics is open at the
National University of Mexico ...here is the link: *
http://www.astroscu.unam.mx/IA/images/PostdoctoralpositionAstrophysics.pdf*

just in case some one is interested.....

well, thanks for all your help ..

hector

On Mon, Jul 23, 2012 at 6:56 PM, Matthew Turk <matthewturk at gmail.com> wrote:

> Hi Hector,
>
> On Mon, Jul 23, 2012 at 8:49 PM, Héctor Aceves Campos
> <aceves at astro.unam.mx> wrote:
> >
> > Hi Nathan and Matt,
> >
> >
> > Thanks for your prompt reply.
> >
> > Yes, I installed it as "sudo" ; since I want it to be available to
> several
> > users (in particular some grad students). Unfortunately I did it in
> > /usr/local and the $PATH points to /usr/local as a lookup directory
> first.
> >
> > I guess that the best way -probably under the assumption that Yt and
> Enzo be
> > available to several people-- is to proceed as follows:
> >
> > a) Install the libssl-dev package
> > b) Install in directory  /opt
> > c) Set the appropiate environment flags later... (including
> > PATH=$PATH:/opt..... LD_LIBRARY=/opt/yt.....)
>
> I think that sounds good -- note also that the install script comes
> with an "activate" script which will set these variables for you, and
> that way you can enter/exit the yt environment at will.
>
> Let us know if this doesn't work, and good luck!
>
> Matt
>
> >
> > I will try it this way in my laptop... before I screw the department's
> > computer! :-)
> >
> > Thanks again, and will let you know about it.
> >
> > Hector
> >
> >
> >
> > On Mon, Jul 23, 2012 at 5:21 PM, Matthew Turk <matthewturk at gmail.com>
> wrote:
> >>
> >> Hi Nathan and Hector,
> >>
> >> I'm sorry for your trouble!
> >>
> >> I suspect that what happened wasn't that yt overwrote any files.  I
> >> think it only installed new files, but what ended up happening is that
> >> Ubuntu searches /usr/local *first*, and then searches the rest of
> >> LD_LIBRARY_PATH.  So in doing so, it hit an incompatible libpng (which
> >> we should update anyway) and which then killed theo ther stuff.  I
> >> suspect the contents of /usr/local could have been wiped and it would
> >> have been okay.
> >>
> >> I've issues a pull request with some fixes to the install script that
> >> will:
> >>
> >>  * Tell you which packages you need to install on Ubuntu
> >>  * Refuse to install in /usr/local
> >>  * Refuse to run as sudo
> >>
> >> I think this should cover these use cases.
> >>
> >> Again, I'm sorry this caused you any troubles.  Hopefully we can work
> >> them out!  And, thanks for bringing them to our attention.  It stinks
> >> that this happened, but I think we can try to make sure it doesn't
> >> happen again to you or anybody else.
> >>
> >> -Matt
> >>
> >> On Mon, Jul 23, 2012 at 7:56 PM, Nathan Goldbaum <nathan12343 at gmail.com
> >
> >> wrote:
> >> > Hi Hector,
> >> >
> >> > Sorry to hear you're having trouble.  The first issue is an easy fix,
> >> > you
> >> > must install the libssl-dev package before running the install script.
> >> >
> >> > Your OS issues are troubling and we'd like to make sure that this
> issue
> >> > isn't repeated.
> >> >
> >> > To figure out exactly what happened, we need to know how you ran the
> >> > install
> >> > script. Unfortunately you haven't given us enough information to
> figure
> >> > out
> >> > what went wrong.  Please let us know exactly what you did, and if you
> >> > can,
> >> > please forward us the install log file for the failed installation.
> >> >
> >> > Normally the install script shouldn't be able to write to system
> >> > directories
> >> > like /usr/local, but if you ran the script using escalated privileged
> >> > (e.g.
> >> > with sudo), it may have overwritten important system files.  In
> general,
> >> > the
> >> > install script is not supposed to be run with root privileges.
> >> >
> >> > Cheers,
> >> >
> >> > Nathan
> >> >
> >> >
> >> > On 7/23/12 12:52 PM, Héctor Aceves Campos wrote:
> >> >>
> >> >> Dear all
> >> >>
> >> >> I have recently tried to install Yt, including Enzo, with the
> >> >> installation
> >> >> script provided in the Yt webpage; setting the Enzo flag=1 and
> >> >> installing as
> >> >> superuser in /usr/local all the files
> >> >>
> >> >> I had the following two problems:
> >> >>
> >> >> 1) the enzo clone was not installed... just before finishing the
> script
> >> >> said something like Python SSL not found or supported, and the enzo
> >> >> installation was aborted.
> >> >>
> >> >> 2) After all this, I was not able to (a) open any pdf file either
> with
> >> >> evince or xpdf (under linux; either ubuntu 10.04 and linux mint 13 -
> >> >> running
> >> >> gnome), (b) login .. my "welcome screen" was off, completely gone or
> >> >> black
> >> >> as in my laptop (a toshiba with linux mint). so I could not login! In
> >> >> the
> >> >> case of my desktop at work, I had to reinstall the operating system.
> >> >>
> >> >> Have any of the people of this forum seen this kind of problems? Any
> >> >> ideas
> >> >> what might have gone wrong or how to fix this?
> >> >>
> >> >> cheers,
> >> >>
> >> >> hector
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> _______________________________________________
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> >> >
> >> >
> >> >
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> >
> >
> >
> >
> > --
> > *************************************
> > Dr. Héctor Aceves Campos
> > Instituto de Astronomía-UNAM
> > Apdo. Postal 106
> > Ensenada B.C. 22800 México
> > Tel: +52-(646)-1744580 x 325
> > Fax: +52-(646)-1744607
> > *************************************
> >
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