To document the irc-discussion it is: setenv SystemPartition scsi(0)cdrom(X)partition(8) setenv OsLoader r4k-ip22 boot The original external scsi drive I tried gave strange timeout messages, but could "ls" the bootfiles on it. The next try with some internal scsi drives in an scsi-tower lead to booting kernels, but mount hang. Only the last internal scsi drive finaly worked. I'll submit a new installation report soon... Hochachtungsvoll, Bernhard R. Link