Hi Graziano, Ah, OK. I did not spot that some of your output was from the net4801...
There is a kernel .config option "CONFIG_X86_ELAN" which is not set for our current 4.x builds. It is not completely clear to me what effect setting this will have, but it is worth a try. If this is indeed the problem we would add another kernel variant "elan" like we have already for i486, i686 and geode. In order to build a custom kernel you can follow the instructions at http://sourceforge.net/apps/mediawiki/leaf/index.php?title=Bering-uClibc_4.x_-_Developer_Guide_-_Preparing_the_Build_Environment and on subsequent pages. It is not particularly difficult if you already have a suitable Linux build host available. Once the buildenv is ready run "./buildtool.pl build linux" to build the standard kernels. Making the changes necessary for a custom kernel is not difficult but it is currently not documented in the Wiki. Once you get as far as building the standard kernel contact me directly for further advice. In the meantime I will also try to build a specific "elan" kernel for you to try. Regards, dMb On Fri, 2011-04-29 at 11:35 +0200, Graziano Brioschi wrote: > hi David > > I think there is a misunderstanding about the problem. > I have two machine: > - the first is a Soekris net4501 and on this machine the kernel does not > boot; I can see the syslinux output about loading of /syslinux/linux and > /initrd.lrp, but nothing more. The system hangs. On this system BuC3.1 > runs correctly. > - the second is a Soekris net4801 that I boot using the same compact > flash generated for the first net4501 to verify that the compact flash > has not some kind of problem; BuC4.0 runs correctly without problems, > but I have seen the "libata.dma=0 not found" error. > > I hope the test environment is more clear now. > I think that there is a kind of incompatibility between the i486 kernel > and the AMD ELAN SC520 processor that is installed on net4501. > Is there a simple way to rebuild a kernel for the AMD ELAN CPU? Is a > difficult operation? Can I try to built it? > > thanks a lot > graziano > > ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd ------------------------------------------------------------------------ leaf-user mailing list: leaf-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/leaf-user Support Request -- http://leaf-project.org/