Starting the installer fails on ppc64le because there is not enough free space in install.img filesystem. The compose's program.log says it's only 10MB (x86_64 reports 140MB free). The symptoms a "no space left on device" error.
df says 4K free on /dev/mapper/live-rw
tested with Fedora-Rawhide-20190115.n.0 (and previous)
The solution is to increase the install.img size to 3GB from the default 2GB. The main question is where it should be changed. In lorax directly or in the compose configs in pungi, globally or per arch. Maybe there is something we could remove in lorax in runtime-cleanup, but it would be a very temporary solution.
It looks like lorax should decide this. Reassigning.
*** Bug 1666305 has been marked as a duplicate of this bug. ***
I have also opened a rel-eng ticket https://pagure.io/releng/issue/8059 if we should go thru the pungi config route.
The created boot.iso is only cca 250KB bigger when the 3GB install.img is used compared to the 2GB one.
I've opened https://pagure.io/pungi-fedora/pull-request/684 to change the Fedora pungi config. I think it's better solution now as it is setting the new value for ppc64le only.
Thanks Dan, I'm going to close this for now. I agree that patching pungi is the better solution at this time.
ACK, Dennis Gilmore made a good point that having a bigger image by default could have negative effects on the low memory / 32-bit platforms, so better to go with pungi config change.