Jeppesen JDM
Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
URL: https://avidynelive.com/forum_posts.asp?TID=2764
Printed Date: 26 Mar 2026 at 9:32pm
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com
Topic: Jeppesen JDM
Posted By: JEDEI120
Subject: Jeppesen JDM
Date Posted: 10 Jul 2025 at 4:01am
| I have an older imac running macOS Mojave. I can also boot the imac into Windows 7. An individual at Jeppesen sent me two earlier versions of JDM one for macOS ( jdm_3.14.0.60_jdmx_x64.pkg) & the other for Windows (jdm_3.14.0.60_jdmx_x86.exe). Neither of the files would run on these two older operating systems. Is there anyone on here in possession of earlier versions of JDM for either macOS or Windows that you think might run on either of the two operating systems? Obviously they would have to be earlier than the two listed above. In my case upgrading the OS on the mac is not an option. |
Replies:
Posted By: MysticCobra
Date Posted: 22 Jul 2025 at 7:51am
|
Rather than try to limp along with two OS's whose ends-of-life were 4 and 5 years ago on a machine that sounds like it's probably ~10 years old, you might consider buying a 2-3 yr old used laptop or desktop with a current OS on it. I'm guessing that if your old iMac is otherwise satisfactory for you, then even low-end machines from the last few years will also be satisfactory. Even something in the $100-200 range would likely be sufficient. You might even be able to ask around to friends and family and see if anyone has a hand-me-down device they'd be willing to part with.
|
Posted By: JEDEI120
Date Posted: 22 Jul 2025 at 9:03am
| I really don't appreciate your unnecessary condescending response. Nothing about that iMac "limp's" along to accomplish its jobs! And I don't need to buy another cheap ass computer as you put it. I have a Wombat, an iphone and ipad to get Navdata & Obstacle data from my Jeppesen subscription. It just would be nice to do it sitting in front of the iMac. So your post equates to an irrelevant nothing burger! |
Posted By: MysticCobra
Date Posted: 22 Jul 2025 at 9:26am
|
I apologize if my suggestion came across as condescending--it was truly not my intent. I was simply thinking about my experience trying to maintain aging computers, and how there might be other options to consider. I don't know your situation or preferences or what else you've considered or are willing to consider. Clearly, this is not a good option for you.
For what it's worth, I drive a 30 year old car, simply because I like it. But also for what it's worth, it long ago stopped being practical or cost-effective to maintain it--if it weren't for my emotional attachment to the car, it would have made a lot more sense for me to buy something newer a long time ago. I've made a choice to keep spending the effort to maintain a car that I like, despite the difficulties of keeping it road-worthy, so I can understand wanting to stick with what you've got.
|
Posted By: PA23
Date Posted: 12 Aug 2025 at 4:52pm
|
not sure how computer savvy you are but on github there is a program called "jdmtool" which is written in Python. It supports both the nav data and obstacle data for the IFD400 & IFD500 series units. JDMTool still requires you to have a valid Jeppesen subscription. I use the software on my Linux machine and have no issues with it. https://github.com/dimaryaz/jdmtool -PA23
|
Posted By: JEDEI120
Date Posted: 17 Aug 2025 at 4:00am
|
I managed to get JDMTOOL working on my iMac running Mojave 10.14.6. In the OS Terminal Window I logged into my account using "jdmtool login". I also used "jdmtool download 0,1" to download both the Obstacle & Navdata which for whatever reason downloaded as zip files. What I can't figure out is how to get the jdmtool file transfer to work using their example "jdmtool transfer 0,1 /run/media/user/USB/". The instructions say:
Note: the final database file requires the FAT32 volume ID of the device. jdmtool will attempt to find it automatically - which requires the destination to be an actual FAT32-formatted device, not any random directory. Alternatively, you may set the volume ID manually using the --vol-id parameter. Getting the volume ID automatically is currently not supported on Mac OS, so you will need to use the --vol-id parameter. I got the volume id using: diskutil unmountDisk disk2 var="$(sudo dd if=/dev/disk2s1 skip=67 bs=1 count=4 2>/dev/null | hexdump -e '4/4 "%X"')"; echo "${var:0:${#var}/2}-${var:${#var}/2}" Which spit out this volume ID: 5B4F-DF51 But I cannot figure out how to set the volume ID manually to "5B4F-DF51" as noted above. Then somehow use "jdmtool transfer 0,1 [what goes here?]" to transfer the Obstacle and Navdata files to the USB Flash drive. |
Posted By: PA23
Date Posted: 17 Aug 2025 at 5:46am
I not familiar with the MacOS but I believe it is simply a modified version of BSD Unix and you are probably over complicating things. What you need is the mount point for your thumb drive and you should be able to get it with the command "df" or a quick search shows the command "mount" will probably show it as well. Based upon what I found, I suspect the mount point will be /Volumes/5B4F-DF51 or something similar. so this means the transfer command with jdmtool would be: jdmtool transfer 1,3 /Volumes/5B4F-DF51 You can also specify "jdmtool transfer curr /Volumes/5B4F-DF51" or "jdmtool transfer next /Volumes/5B4F-DF51" to specify the current or next databases -PA23
|
JEDEI120 wrote:Posted By: JEDEI120
Date Posted: 17 Aug 2025 at 6:07am
|
Here is what that output: Roys-iMac-2:~ Roy$ jdmtool transfer 0,1 /Volume/5B4F-DF51 /Volume/5B4F-DF51 is not a directory |
Posted By: JEDEI120
Date Posted: 17 Aug 2025 at 6:14am
|
Tried this one as well: Roys-iMac-2:~ Roy$ jdmtool transfer 0,1 /Volume/LEXAR32 /Volume/LEXAR32 is not a directory |
Posted By: PA23
Date Posted: 17 Aug 2025 at 6:23am
|
try /Volumes/5B4F-DF51 note the plural in Volumes otherwise check the output of "df" and/or "mount"
|
Posted By: mblb08
Date Posted: 23 Aug 2025 at 5:44am
|
It looks bad elf no longer sells the wombat. Is there any other way to use the JDM app on an iPad to transfer updates to USB? I would like to update while traveling with the need of bringing a laptop. Looking for any tips or suggestions. ------------- Michael Baute N8988X |
Posted By: HenryM
Date Posted: 23 Aug 2025 at 7:57am
|
How about saving the files to a cloud location and then copying them to the appropriate USB drive from your iPad? I am not sure where JDM puts the files when you download them, but I believe I can copy mine from the USB drive to whatever location I want, and then copy them back to another USB drive using the Files app of my iPad. My iPad has a USB C connector. All I would need to plug in an Avidyne USB drive is a USB C to USB A adapter. For example, this one: https://www.amazon.com/dp/B07CVX3516" rel="nofollow - https://www.amazon.com/dp/B07CVX3516 I don't know of a way to run JDM on an iPad, but if you can run it at home and place the resulting dsf files in an accessible cloud location, this process to copy to a USB drive might work.
|
Posted By: PA23
Date Posted: 23 Aug 2025 at 4:47pm
|
In order to prevent you from copying the files from one USB drive to another the volume ID (8 digit number) of the thumb drive is encoded into the .jdm file Easy enough to work around you simply need to move the files to a thumb drive with the same volume ID. There are utilities that allow you to change the volume ID of a drive. There was some discussion about making jdmtool work on a cell phone, I don't remember all the issues but I seem to recall 1) the phone needed to be Android 2) ithe phone need to be rooted 3) it was slow If there is enough interest maybe the developer could be persuaded to look at writing a cell phone version.
|