HP DC7800 network boot

[mclapper68]

I am having troubling booting from Fog on my HP DC 7800. Yes they are old. But they were working on an older version on FOG 1.5.2 or ealier I am not sure. I am currently running 1.5.5. I read other posts about changing the kernel to 4.15.2 and adding the acpi=no in the kernel option. I have tried this and it says kernel is too old. When I try a newer kernel and the latest it says RCU grace-period kthred stack dump. Thank you.

[george1421]

The kernel panic sync issue is that the inits and the kernel do not match. You can’t move to a previous release kernel where the inits are expecting something newer.

For your kernel parameter shouldn’t it be acpi=off no might be a synonym, but I think I would try it as off. https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt

Its also strange that a newer kernel would do this. How many of these older systems do you have in your environment?

@Developers is there a place to download the 1.5.2 inits? I only know how to download the current release.

[Sebastian Roth]

@george1421 said in HP DC7800 network boot:

is there a place to download the 1.5.2 inits? I only know how to download the current release

Yes -> https://fogproject.org/binaries1.5.2.zip -> extract and find the original inits and kernel binaries

[george1421]

@Sebastian-Roth said in HP DC7800 network boot:

Yes -> https://fogproject.org/binaries1.5.2.zip ->

This is why you are one of the FOG Project Digital GODS.

@mclapper68 Depending on your deployment volume. You could download and extract the zip file. Save the init.xz as init152.xz and move it to /var/www/html/fog/service/ipxe on the fog server. Then finally update the init field for this host to init152.xz and for the kernel do the same, rename bzImage from the zip to bzImage152 and move to the same location then update the kernel field for this host to bzImage152. (sorry for the disjointed post I was thinking linearly here). That workaround will allow you to continue to use fog as it was deigned for the new kit, and still support his older stuff without fear of an update breaking your older systems.

[browolf]

This post is deleted!

[browolf]

@mclapper68

Having this exact problem after having to rebuild our fog server from scratch. Have 100s of DC7800 and am having to resort to imaging them one at a time with clonezilla instead :’(

Our original fog server which worked fine was corrupted by Vmware and I didn’t have a backup.

[george1421]

@browolf Are you running into the CPU stall issue too?