Jeppesen JDM

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Topic: Jeppesen JDM
Posted: 10 Jul 2025 at 9:01am

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.

MysticCobra View Drop Down

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Posted: 22 Jul 2025 at 12:51pm

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.

Edited by MysticCobra - 22 Jul 2025 at 12:52pm

JEDEI120

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Posted: 22 Jul 2025 at 2:03pm

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!

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Posted: 22 Jul 2025 at 2:26pm

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.

Edited by MysticCobra - 22 Jul 2025 at 2:34pm

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Posted: 12 Aug 2025 at 9:52pm

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

Edited by PA23 - 12 Aug 2025 at 9:54pm

JEDEI120

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Posted: 9 hours 56 minutes ago at 9:00am

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.

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Posted: 8 hours 10 minutes ago at 10:46am

JEDEI120 wrote:

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:

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

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

Edited by PA23 - 7 hours 41 minutes ago at 11:15am

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