A root= is needed for an install over the network. It needs to get hold of install.img from somewhere. Here's my console when I boot from the virtual reader and use and internal server to hold the 7.4.1708 image:
RDR FILE 0732 SENT FROM CLCTLR PUN WAS 0674 RECS 054K CPY 001 B NOHOLD NOKEEP RDR FILE 0733 SENT FROM CLCTLR PUN WAS 0675 RECS 0005 CPY 001 B NOHOLD NOKEEP RDR FILE 0734 SENT FROM CLCTLR PUN WAS 0676 RECS 399K CPY 001 B NOHOLD NOKEEP 00: I C CLEAR 00: NO FILES CHANGED 00: Uncompressing Linux... 00: Ok, booting the kernel. 00: [ 0.220768] Initializing cgroup subsys cpuset [ 0.220772] Initializing cgroup subsys cpu [ 0.220774] Initializing cgroup subsys cpuacct [ 0.220781] Linux version 3.10.0-693.el7.s390x (mockbu...@clefos-build-image08.bld.sinenomine.net) (gcc version 4.8.5 20150623 (R ed Hat 4.8.5-11) (GCC) ) #1 SMP Sat Sep 16 05:21:59 EDT 2017 [ 0.220791] setup: Linux is running as a z/VM guest operating system in 64-bit mode [ 0.694918] Zone ranges: [ 0.694925] DMA [mem 0x00000000-0x7fffffff] [ 0.694928] Normal [mem 0x80000000-0x3ffffffff] [ 0.694931] Movable zone start for each node [ 0.694933] Early memory node ranges [ 0.694936] node 0: [mem 0x00000000-0x3ffffffff] [ 0.694942] Initmem setup node 0 [mem 0x00000000-0x3ffffffff] [ 0.797912] PERCPU: Embedded 15 pages/cpu @0000000092325000 s24064 r8192 d29184 u61440 [ 0.798098] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 4128768 [ 0.798104] Kernel command line: root=live:http://192.168.0.1/7.4.1708/images/install.img ramdisk_size= 131 072 cio_ignore=all,!0.0.0009 CMSDASD=191 CMSCONFFILE=TESTING.CONF ks=http://192.168.0.13/ Note the report of the kernel command line. Neale On 5/17/18, 16:27, "Linux on 390 Port on behalf of Hamilton, Robert" <LINUX-390@VM.MARIST.EDU on behalf of rhamil...@cas.org> wrote: There are two generic*.prm files in the iso in the images directory they have ro ramdisk_size=40000 cio_ignore=all,!condef rd.cmdline=ask (genericdvd) ro ramdisk_size=40000 cio_ignore=all,!condef (generic) I started using the support files to IPL in Hercules, and modified the generic.prm there to increase the ramdisk_size to 65536. I've made one or two other changes to it; once I dropped the cio_ignore parameter, and another time I added the rd.cmdline=ask. This last time I used your version, verbatim, and ended up with the same result, /dev/root does not exist. Sometimes along the way I've gotten variations on that theme, /dev/ram0 or /dev/ram1. It always ends up stopping after the lcs: Loading LCS driver message. This particular process runs for 7+ minutes and then stops after finding...well, NOT finding a root directory. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
