Do not include the root= dracut config in PXE images

[teclator]

Problem

The unconditional set of root= setting in the initrd is problematic in case of PXE images.

From the bug report:

.... while this might work for live ISO's booting via the dracut live (livenet) module it is a wrong and conflicting setting for the kiwi-dump module code which is active if you are not building a live image but an oem image with installpxe="true".

The unconditional setting for root=live:... causes the dracut live module code to be called and not the actual expected kiwi-dump code. When mixing the kernel cmdline parameters for both modules there is also a timing issue on the probing of the network such that sometimes one or the other module wins.

In short this unconditional root= setting causes a lot of issues and should only be done in the live ISO builds of agama and nowhere else.

• https://bugzilla.suse.com/show_bug.cgi?id=1242976

Solution

Remove the root= configuration for PXE images.

[mtomaschewski]

Looks fine to me.