Lee, On Fri, 30 Mar 2012, Lee Stewart wrote: > Hi all, > I've been trying to think of any reason to ever have cio_ignore in a VM > guest. I can see real use for it in an LPAR where you may have > thousands of devices that have nothing to do with the Linux instance. > But in a virtual machine I only give it the devices I want it to have in > the first place. > > Teaching it to new comers, they can easily understand chccwdev -e as the > logical equivalent of varying something online to VM or z/OS. With > having to issue a cio_ignore -r then a chccwdev -e I keep getting asked > why they have to vary it online twice. And I don't have any good answer... > > Thoughts? Insights?
With cio_ignore you can modify the device blacklist. The reason you have to remove a device from the blacklist before you can use it is that you have added the device to the blacklist in the first place. So either you did a "cio_ignore --add" earlier or you have set the cio_ignore kernel parameter (most likely the latter). If you want linux to use all available device simply remove the cio_ignore kernel parameter. Regards, Sebastian > Thanks, > Lee > > -- > > Lee Stewart, Senior SE > Sirius Computer Solutions > Phone: (303) 996-7122 > Email: lee.stew...@siriuscom.com > Web: www.siriuscom.com > > ---------------------------------------------------------------------- > 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/ > > ---------------------------------------------------------------------- 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/