I ran Pharo 6 64 bit on El Capitan some time ago. I am not sure about the exact version of Pharo and VM though. Have you tried with older VMs? Cheers, Manuel

On 26 Dec 2017, at 17:22, Renaud de Villemeur <renaud.devillemeur@gmail.com> wrote:

Hi all

I want to run pharo on Mac Os X. It is on old hardware, and thus, I cannot upgrade to latest version of MacOsX. I am trying to run in on El Capitan - v 10.11.6.

When I start pharo from the command line, I have this error: $ ./Pharo

Illegal instruction Tue Dec 26 11:12:55 2017

VM: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git <https://github.com/OpenSmalltalk/opensmalltalk-vm.git> $ Date: Thu Jul 20 12:42:21 2017 -0700 $ Plugins: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git <https://github.com/OpenSmalltalk/opensmalltalk-vm.git> $

Abort trap: 6

I am using latest 6.1 64bit link from pharo web site.

If I am using the command line install with curl, I have the following result: ./pharo-ui

Illegal instruction Tue Dec 26 11:19:49 2017

VM: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git <https://github.com/OpenSmalltalk/opensmalltalk-vm.git> $ Date: Thu Jul 20 12:42:21 2017 -0700 $ Plugins: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git <https://github.com/OpenSmalltalk/opensmalltalk-vm.git> $

./pharo-ui: line 11: 991 Abort trap: 6 "$DIR"/"pharo-vm/Pharo.app/Contents/MacOS/Pharo" "$@"

Any hint ? Or should we specify a minimal version of mac os X for 64 bit version ?

Thanks in advance for your help Renaud