I tried to install J9.01 over J8.07 on Debian Stretch following the Debian instructions, and I got
root@here:/home/me/bin# dpkg -i j901_amd64.deb > (Reading database ... 366466 files and directories currently installed.) > Preparing to unpack j901_amd64.deb ... > Unpacking jlang (9.01) over (8.07) ... > dpkg: warning: unable to delete old directory > '/usr/share/j/8.07/addons/ide': Directory not empty > dpkg: warning: unable to delete old directory '/usr/share/j/8.07/addons': > Directory not empty > dpkg: warning: unable to delete old directory '/usr/share/j/8.07': > Directory not empty > Setting up jlang (9.01) ... > root@ here:/home/me/bin# exit > exit So you can't install in parallel anymore, it seems. I quit an open jqt 8.07 session, tried again, and it seemed to work. ijconsole must be using a previous alias, and it works: ~/bin$ ijconsole 9!:14 '' j901/j64/linux/release-c/commercial/www.jsoftware.com/2020-01-11T10:39:00 Then I followed the instructions to install all addons. At the end, it said, Done. Addons are up to date. Restart J to get the latest version of the base library. exit'' root@here:/home/me/bin# ijconsole 9!:14'' j901/j64/linux/release-c/commercial/www.jsoftware.com/2020-01-11T10:39:00 install 'base' Updating server catalog... exit'' Then i tried jqt: ~/bin$ jqt Load library libj.so.8.07 failed. me@here:~/bin$ ls -l /usr/bin/jqt lrwxrwxrwx 1 root root 21 May 7 2019 /usr/bin/jqt -> /etc/alternatives/jqt me@here:~/bin$ ls -l /etc/alternatives/jqt lrwxrwxrwx 1 root root 17 May 7 2019 /etc/alternatives/jqt -> /usr/bin/jqt-8.07 I'm not familiar with the /etc/alternatives hierarchy nor who writes to it (except 8.07 apparently did and 9.01 may not have). Any tips from this point? Thanks, Bill PS: I also tried jhs according to https://code.jsoftware.com/wiki/Guides/JHS/Install: ~/bin$ jhs bash: jhs: command not found Perhaps these problems are related? -- Bill Harris ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
