On 2-2-2011 1:41, Peter Münster wrote:

Hans Hagen<pragma@wxs.nl>  writes:

no, i'm still trying to get mkii and mkiv working at the same time with a
fundamental different setup strategy .. getting there

Or perhaps 2 completely different distributions?
mkii: frozen, only some fixes from time to time
mkiv: no more mkii files, no more pdftex, just pure mkiv

this can already be done (just install with the --engine=luatex flag)

the main issue is that mtxrun also replaces the ruby texmfstart script and texexec is launched via mtxrun; so mtxrun needs to be able to deal with mkii situations where kpse is used for lookups later on; as the installer uses the --tree option, and as mkiv has an abstract notion of the texroot, some hoops have to be jumped through to get it working for both machineries