canny has idl 8.6.1
mirzy has idl 8.7 (I think)
as noted in prev post, using canny on gal mag fld proj with idl for first time in years, i hit a bug that was 8.6.1 related (which is why i hadn’t had this problem on mirzy!)
Because mirzam was down tonight I used idl on canopus instead. In trying to run some idl galactic magnetic field idl programs on canopus, I kept hitting an obscure error on coyote’s cggreek routine which makes greek letters for plots. Googling it I found that an idl 8.6.1 (as on canny) error prevented old cggreek from working. (It worked ok forever on mirzy, which has I think idl 8.7)
So I installed the new cggreek from github to thuban2’s /var/share/astro/idleshare/coyote. but this didn’t work! why? because i had to install it onto /var/share/astro_centos7/idleshare/coyote Note because of access issues, one can not install directly onto /usr/share/astro on mirzy or canny, but must instead go to thuban2/var/share/astro_centos7/ as above (and see below).
by the way i used su cp etc etc on thuban 2 to overcome permission issues on canny or mirzy themselves, but prev post shows that su – on thuban2 might be easier