On Wed, Nov 07, 2012 at 09:52:54AM -0600, Dave Jones wrote: > Larry, you might try using the cio_ignore= kernel option to limit the > number of addresses the zLinux kernel looks for at boot time. You might > try something like this: > > cio_ignore=all,!0.0.1150,!0.0.fd00-0.0.fd02 > > will ignore at boot time all devices except those at addresses 1150, and > FD00-FD02. > > I would put it in the generic parameter file you use at boot time to > load the kernel and initrd files. Thanks Dave. I just added this to "s390 Boot Parameters"[1]: | If you boot the installer in a logical partition (LPAR) or virtual | machine (VM) where a lot of devices are visible, you might want to | instruct the kernel to restrict the list to a fixed set of devices. This | is advised for the installer's boot process if a lot of disks are | visible. The "cio_ignore" option supports both a blacklist (to only | disallow a few devices) and a whitelist (to only allow specific | devices): | | <informalexample role="example"><screen> | # blacklist: just ignore the two devices 300 and 301 | cio_ignore=0.0.0300-0.0.0301 | # whitelist: ignore everything but 1150, FD00, FD01 and FD02 | cio_ignore=all,!0.0.1150,!0.0.fd00-0.0.fd02 | </screen></informalexample> | | Please note that all devices numbers' hex digits need to be specified in | lower case. To be considered during the installer's boot process the | above option needs to be added to <filename>parmfile.debian</filename>. But I'm neither an English native speaker nor a documentation guy. Kind regards Philipp Kern [1] http://d-i.debian.org/manual/en.s390/ch05s01.html#idp5194000
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