[SOLVED] Installing V7.82 tools fails on WSL2

71GA · Oct 25th 2022, 11:08am

I am trying to install the SEGGER V7.82 tools inside the WSL2 using .deb package and setup fails:

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xenlauz@DEAGM13474:~$ sudo dpkg -i JLink_Linux_V782_x86_64.deb
(Reading database ... 75422 files and directories currently installed.)
Preparing to unpack JLink_Linux_V782_x86_64.deb ...
Removing /opt/SEGGER/JLink ...
Unpacking jlink (7.820) over (7.820) ...
Setting up jlink (7.820) ...
Failed to send reload request: No such file or directory

Do you maybe know why this could happen and how to fix this. After this J-Link binaries are installed in proper directories but can't see the J-Link.

SEGGER - Alex · Oct 25th 2022, 3:44pm

Hi,

No idea out of my head.
What J-Link tries to do is getting the 99-jlink.rules in place and then issue a reload request to udevadm to reload the rules files.
Looks like this does not work under WSL2 on your machine for some reason.

The J-Link software is only tested on native Linux distributions. WSL2 is not explicitly tested:
wiki.segger.com/J-Link_Tested_Linux_distributions

We may give it a try here within the next few weeks but I cannot promise anything at this point.

71GA · Oct 25th 2022, 10:04pm

SEGGER - Alex wrote:

We may give it a try here within the next few weeks but I cannot promise anything at this point.

For now, I installed the version V6.46k and that one works. It would still be nice if you can take a look.

SEGGER - Alex · Oct 28th 2022, 11:44pm

We found the culprit:

A weird behavior of WSL2 when requesting a reload via “udevadm”.
Fortunately, there are workarounds mentioned on the Internet and a quick check showed that they work.
Will take another 2 weeks or so though, until this will make it into a new version.

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