Hi Tom,

In my case the culprit was /images/postdownloadscripts/fog.postdownload.

echo "Activating boot partition..." sfdisk --activate /dev/sda 1 echo "Rebooting..." reboot -f

Fix was simply commenting out (or deleting) those lines. After cleanup the file looks like this:

cat /images/postdownloadscripts/fog.postdownload #!/bin/bash ## This file serves as a starting point to call your custom postimaging scripts. ## <SCRIPTNAME> should be changed to the script you're planning to use. ## Syntax of post download scripts are #. ${postdownpath}<SCRIPTNAME>

Thanks for the pointer, Tom — saved me from chasing GPT partition tables for a problem that had nothing to do with them.

@Tom-Elliott
Multicast
cb765515-1c91-406f-bac6-c30fd8dca2e3-grafik.png
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deee65ea-e430-40ff-b5e9-732fd60bf0de-grafik.png WhatsApp Image 2026-09-22 at 10.31.53(1).jpeg WhatsApp Image 2026-09-22 at 10.31.53.jpeg

root@fog:~/FOG_SERVER_Updates_durchführen# tail -n 40 /opt/fog/log/multicast.log [09-08-26 9:49:42 pm] * No new tasks found [09-08-26 9:49:52 pm] * No new tasks found [09-08-26 9:50:02 pm] * No new tasks found [09-08-26 9:50:12 pm] * No new tasks found [09-08-26 9:50:22 pm] * No new tasks found [09-08-26 9:50:32 pm] * No new tasks found [09-08-26 9:50:42 pm] * No new tasks found [09-08-26 9:50:52 pm] * No new tasks found [09-08-26 9:51:02 pm] * No new tasks found [09-08-26 9:51:12 pm] * No new tasks found [09-08-26 9:51:22 pm] * No new tasks found [09-08-26 9:51:32 pm] * No new tasks found [09-08-26 9:51:42 pm] * No new tasks found [09-08-26 9:51:52 pm] * No new tasks found [09-08-26 9:52:02 pm] * No new tasks found [09-08-26 9:52:12 pm] * No new tasks found [09-08-26 9:56:33 pm] ===== FOG 1.5.10.2473 -- MulticastManager starting ===== [09-08-26 9:56:33 pm] Interface Ready with IP Address: 10.10.3.196 [09-08-26 9:56:33 pm] Interface Ready with IP Address: 127.0.0.1 [09-08-26 9:56:33 pm] Interface Ready with IP Address: 127.0.1.1 [09-08-26 9:56:33 pm] Interface Ready with IP Address: 192.168.0.196 [09-08-26 9:56:33 pm] * Starting MulticastManager Service [09-08-26 9:56:33 pm] * Checking for new items every 10 seconds [09-08-26 9:56:33 pm] * Starting service loop [09-08-26 10:00:14 pm] ===== FOG 1.5.10.2473 -- MulticastManager starting ===== [09-08-26 10:00:14 pm] Interface Ready with IP Address: 10.10.3.196 [09-08-26 10:00:14 pm] Interface Ready with IP Address: 127.0.0.1 [09-08-26 10:00:14 pm] Interface Ready with IP Address: 127.0.1.1 [09-08-26 10:00:14 pm] Interface Ready with IP Address: 192.168.0.196 [09-08-26 10:00:14 pm] * Starting MulticastManager Service [09-08-26 10:00:14 pm] * Checking for new items every 10 seconds [09-08-26 10:00:14 pm] * Starting service loop [09-08-26 10:08:36 pm] ===== FOG 1.5.10.2473 -- MulticastManager starting ===== [09-08-26 10:08:36 pm] Interface Ready with IP Address: 10.10.3.196 [09-08-26 10:08:36 pm] Interface Ready with IP Address: 127.0.0.1 [09-08-26 10:08:36 pm] Interface Ready with IP Address: 127.0.1.1 [09-08-26 10:08:36 pm] Interface Ready with IP Address: 192.168.0.196 [09-08-26 10:08:36 pm] * Starting MulticastManager Service [09-08-26 10:08:36 pm] * Checking for new items every 10 seconds [09-08-26 10:08:36 pm] * Starting service loop root@fog:~/FOG_SERVER_Updates_durchführen#

I use two network cards—the “192” network is the one with the PCs, and the “10” network contains only servers and my backup servers …

@Jason89436 Thanks for the report. The agent had no snapin pack support, and on Windows it also dropped backslashes from snapin arguments. Both are fixed. Update the server to the latest working-1.6, then update the agent to 0.1.10. After that, [FOG_SNAPIN_PATH]\msoffice.ps1 resolves to the unzipped pack folder, as it did with the legacy client.

@mp12 Thanks for the logs. This is a bug in 1.5.10.2482, not your node passwords.

A security change in 2482 removes the storage node password from the node data that the API returns. The image and snapin replicators read their node list from that same data. So they now send an empty password, and every node rejects the login. The Undefined property: stdClass::$pass warning is that missing field.

The fix is merged to dev-branch: https://github.com/FOGProject/fogproject/pull/1770

To get it now, update from dev-branch:

cd /path/to/fogproject git checkout dev-branch git pull cd bin sudo ./installfog.sh -y

Or wait for the next stable release. Your stored passwords are correct, so you do not need to change anything on the nodes.

@AUTH-IT-Center I do believe snponly would be the recommended, rather than iPXE’s driver.

The developers at iPXE wrote the driver on their own (of course using documentation and stuff, but for all intents/purposes it is still a handrolled driver) so anything is possible.

We shipped the native iPXE 2.0.0 mainly because of the feature it allows with actual Secureboot capabilities and instead of embedding everyfile with a custom script, a more dynamic approach for when iPXE releases new version we can upgrade more easily.

For what it’s worth, I would almost want more people to default to snponly.efi (or secureboot/snponly-shimx64.efi if using/wanting secureboot after enrolling your machines of course) because this is supposed to be using the generic driver for EFI boot protocols on the NIC rather then attempting to discover the NIC using a driver loaded.

@Tom-Elliott I edited the sshd_config file and changed
/usr/lib/openssh/sftp-server
to
internal-sftp

I’m not sure how the installer failed to make this accomodation in the first place but I’m glad it appears to be working. I deployed the image to another laptop to make sure everything is working. It looks like the problem can be considered resolved now. Thanks for your help!

@gmaurice resetting the host encryption in the gui and then restart the fog service and it should be back up and running. You can also use the api for this, the FogApi powerhsell module (links in my signature) I have this Reset-HostEncryption function https://fogapi.readthedocs.io/en/latest/commands/Reset-HostEncryption/?h=reset+host which will also handle this reset.

Your other other option is to look into post download scripts, there’s some examples in the forums and the docs. If you’re using sysprep and unattend.xml you can inject domain join information into the unattend.xml after imaging and before windows launches for the first time, so the computer is joined to the domain before the fog service or any ui is reachable.

@Tom-Elliott Thank you, tested, confirmed it’s fixed.

@Balage80 Thanks for confirming the enrollment fix.

UEFI boot: I think the cause is two new lines in default.ipxe. They read Secure Boot state from the firmware. iPXE reads it by stepping through every firmware variable, and some firmware never ends that list, so iPXE hangs there.

Please test this: take the new 979-byte default.ipxe and delete only these two lines. Keep everything else.

param secureboot ${efi/SecureBoot} param setupmode ${efi/SetupMode}

Does UEFI boot with that file? Please also post the make, model, and BIOS version of the machine. Note that re-running installfog.sh writes a new default.ipxe, which replaces a manual edit.

Pending MACs: these are not related to default.ipxe. They come from the legacy FOG Client’s Host Registration module. That module reports every adapter Windows sees, including Wi-Fi, Bluetooth, and virtual Wi-Fi Direct adapters. FOG stores each unknown MAC as pending, up to FOG_QUICKREG_MAX_PENDING_MACS per host (default 4). iPXE cannot see those adapters. You can delete the pending MACs. To stop new ones, add MAC fragments to FOG_QUICKREG_PENDING_MAC_FILTER (comma separated), or turn off Host Registration.

@Tom-Elliott

I can’t modify the company’s switches or other hardware since the system is in production. I’m currently rebuilding the FOG server on a VM on my PC and doing everything locally; it’ll be easier to troubleshoot that way. Gemini has wiped out all the previous messages and is giving me nonsense—I can’t seem to recreate the environment up to the capture stage anymore. Could you give me a rundown of everything that needs to be done—downloads, decompressing specific files in binary mode, etc.?

Thanks.

FYI for anyone else running into this issue - I believe the problem was that I didn’t erase the /tftpboot images when I switched from http to https. I’m not really sure why that would matter, but when I did that, then re-ran the server reinstall and selected https, the images got but back in /tftpboot and my hosts didn’t see the mac error anymore.

@Priyankha We need a lot more details.

FOG Version

What bootfile is your boot server trying to send?

Is you server sending the right FOG server for option 66/67?

What OS are you trying to capture?

What does the error show or maybe a screen shot? (UEFI Boot looks different from Legacy boot from Mac from arm, etc…)

What type of machine are you trying to image?

What have you tried?

@JJ-Fullmer @edvandro This should be fixed in dev-branch as well, but I agree with JJ here, please upgrade to working-1.6.

@jmeyer Would you be willing/able to try again without bypassing it to help confirm the fix?
@rogersk4132 thank you for testing and confirming!

@astrugatch Okay thanks and sorry there was that issue.

Can you pull and try installing again?

Thank you!

@maxcarpone I would ask you, if you’re daring/willing (it’s considered beta but uses the same pipeline with a lot more modern ui, I need people testing, and Fog_newb can likely attest the new ui look and feel though I think they ran into an issue and needed to get functional right away so the snapshotted back)

Upgrade to working-1.6.

I have a goal (along with @JJ-Fullmer ) to try to get working-1.6 to be master/stable branch by October.

1.6 has been “stagnant” since around 2017 and was in relatively stable grounds back then even.

With AI (as you undoubtly can see I’m using to help drive some things) it’s allowed us to get a lot more coding/refactoring and will hopefully present a much better experience of things on the UI side. Without testing I cannot fix UI bugs though.

AI can do some cool things, but it doesn’t know what “wrong/right” looks like, and JJ and I are only 2 people.

There are others on working-1.6 but more feedback is always good.

Thank you Tom, I got updated to Working-1.6beta.4105 and that issue is fixed. Not sure if it is just this particular install or not.

Some Issues I am noticing is Host registration is not showing up whether from the fog menu or the client. I can see it is trying but does not appear to be writing to sql.

36f170d3-0a3b-4de3-b327-4233bc53534b-image.png

Deployment: Getting invalid mac errors it seems on all devices. The task seems to be populating alright.

No viable macs to use

@Tom-Elliott Thanks Tom. 1.5.10.2344 seems to be capturing fine. No additional null tasks were created and the PC had no problem checking in and starting the capture.

I’d swear, not only with this version but the earlier ones that were malfunctioning during check in and creating additional tasks, I had to create the task twice. Like I went through the process of setting up a capture but nothing showed up under tasks then had to do it again.

I can’t seem to duplicate it though. Setting up a 2nd capture for the laptop, I only had to do it once (and no additional null tasks were created).

PC finished the capture no problem and laptop checked in and is capturing now. Looks like 2344 did it!

Thanks again.