Click Continue to begin the process of installing or reinstalling OS X. The Mountain Lion software license agreement screen appears.
Read it and click Agree. A sheet drops down, asking whether you agree to the terms of the license agreement. Choose the disk on which you want to reinstall OS X by clicking its icon once in the pane where you select a disk. A sheet asks for your Apple ID and password.
Type them in the appropriate fields; click Sign In, and your Mountain Lion installation or reinstallation begins. The operating system takes 30 to 60 minutes to install, so now might be a good time to take a coffee break. When the install is finished, your Mac restarts itself. Your Mac will reboot and you can begin using your new, freshly installed and ideally trouble-free copy of OS X Mountain Lion. Sometimes you can recognize your interface from the right-hand part of the name.
Upgrading from Mac OS X 10.7 (Lion)
If not, the easiest way to find the name for your interface is to disconnect it, start JMRI, write down the list of available devices, close JMRI, reconnect the interface, start JMRI again, and look to see which extra name has appeared. That's the name one you want. Plug your device back in and wait a few seconds. Two new items with names like cu. They should disappear if you unplug your device.
If this does not happen, you do not have the correct drivers installed for your device and you will need to solve that before proceeding further.
Once you have found your device, write down the name you see. You want the cu. If you have got this far you know your device is be being seen by the Mac, that it has a matching driver installed and the name of the connection port "cu. If you cannot get this far, there's no way JMRI can find your device until the driver issue is resolved. Once in Recovery Mode, select Terminal from the Utilities menu. Sometimes very old Macs have an older "vecsub.
It happens more often when you're compiling your own version, but it can also happen when just running a download. You might have to create that directory Do not do this unless you have seen that symptom.
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Notes macOS If not, please let us know on the jmriusers group. If you installed Oracle's Java 8 before upgrading to Catalina, it'll still work. If you want to install Java 8 from Oracle onto a Catalina system, there are some instructions on the Oracle web site. The Oracle Java 11 installer is an easier installation, and works fine with JMRI, so we recommend you do that instead. JMRI versions before 4. We hope to have JMRI 4. To install JMRI 4.
Depending on your system security settings, dragging it to Downloads, Documents or Desktop might not work. For example, you might to sometimes connect PanelPro to the Command Station on your layout, or other times have a configuration that doesn't use a layout connection so you can work with the program on a laptop away from the layout.
PanelPro and DecoderPro save their Preferences separately, so they can be configured independently. On a Mac, the different Preferences files take their name from the name of the application icon that's invoked. This lets you create multiple copies of e. DecoderPro that each use their own, separate Preferences files. Let's say you want one called "CoolNewOne". Duplicate the DecoderPro application icon ctrl-click to get a popup menu and say duplicate, or select the icon and choose duplicate from the File menu in Finder. Change the duplicate's name.
It's probably better to use a simple one-word name like "CoolNewOne" Double click your new icon, and off you go. If you want an icon in some other place, like on your desktop: Go to the JMRI folder and select the application icon. From the file menu, select "Make Alias" Drag that new alias icon to it's new location, and optionally rename it. Note that renaming the alias alone does not cause the application icon to be renamed, so the alias will be using the same Preferences as the original. Thanks and congratulations to all who contributed! Additional information on copyright, trademarks and licenses is linked here.
Site hosted by: Simply Hosting site status page. Download and install JMRI. Get the JMRI software Depending on how your Mac is set up, you might need to install Java : Let's try the easy way first.
Upgrading from Mac OS X 10.7 (Lion)
If this starts up OK, you have Java installed. Move to the next step. If it opens a dialog box that offers to install Java, or takes you to the Java install web site, just follow those instructions. If that doesn't work, and you have a current macOS version, you can get the latest Java JRE installer as a free download at: java. After that download is complete, follow the included instructions to run the Java installer.
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More on Java versions and hardware requirements prompts for Java in your browser. Older Java installations typically are removed by a MmcOS update. However, older Java applications are known to try and reinstall old stuff that might cause conflicts while running JMRI. See the instructions on how to check if this applies to your installation. Installation is complete. Debugging JMRI supports many different Mac computers, with several different kinds of processors, multiple macOS versions, and various layout hardware.