Fujitsu publish a "Third Party Licenses" in the local iRMC S4 management interface which lists all the GPL-licensed software used in iRMC (u-boot, Linux, busybox, etc).
Has anyone requested this and successfully received it from Fujitsu? They're required by the GPL license to provide it upon request.
I emailed firstname.lastname@example.org in December 2020 requesting the source code, and while an engineer from Fujitsu did eventually reply, they still have not provided the source code.
I am curious if anyone else has received the source code for iRMC S4 and how long it took Fujitsu to fulfill your request.