>-- Original Message -- >From: Jan Kiszka <[EMAIL PROTECTED]> >To: Mica Hallin <[EMAIL PROTECTED]> >CC: RTnet Users <[EMAIL PROTECTED]> >Subject: [RTnet-users] Re: >Date: Mon, 08 Mar 2004 19:15:01 +0100 > > >Hi, > >you accidentally posted to the admin address. > >> Hi, >> >> I must try RTnet perf on powerpc embeded system >> >> System config : >> >> MPC8245 >> EtherExpress 100 >> >> The system boot via NFS with bootp so I have to built-in ethernet driver >on >> kernel
Well, are you sure about that. Likely the kernel boots out of flash memory or is downloaded via tftp. Then the kernel mounts the root file-system via NFS. > >Sounds tricky. > >> Can I try to boot with a initrd image and load the RT ethernet module and >> then boot via nfs ? or can I built-in RT ethernet into my kernel ? >> > >Even if you were able to built the RT-driver into your kernel, it would >not be usable as a normal NIC as long as the realtime network is not >running. A "realtime" boot over a RTnet segment would require >significant extensions to RTnet and RTAI (the latter would also be >required to become built-in). > >Do you have the chance to boot your system over Etherboot with TFTP and >then switch it over to a realtime network segment? This is how I bring >up my test boxes. See above. You should be able to install a RAMdisk based system (initrd) in the Flash memory or on a FLASH file-system (CRAMFS, JFSS2) and boot Linux without using the network. Nevertheless, working in such an environment is cubersome. Wolfgang. ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ RTnet-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/rtnet-users
