On Tuesday 26 December 2006 19:51, Geert Stappers wrote: > Op 26-12-2006 om 03:44 schreef Frans Pop: > > Please check: > > http://d-i.alioth.debian.org/manual/en.sparc/ch02s01.html#sparc-cpus > > The information about memory banks and memory maps is gone, > please include it again. I'll leave that to the author of the original patch. Jurij, I guess this is about the following text. Should this be included again? <sect3><title>Memory Configuration</title> <para> Some older Sun workstations, notably the Sun IPX and Sun IPC have memory banks located at fixed locations in physical memory. Thus if the banks are not filled gaps will exist in the physical memory space. The Linux installation requires a contiguous memory block into which to load the kernel and the initial RAMdisk. If this is not available a <quote>Data Access Exception</quote> will result. </para><para> Thus you must configure the memory so that the lowest memory block is contiguous for at least 8Mb. In the IPX and IPC cited above, memory banks are mapped in at 16Mb boundaries. In effect this means that you must have a sufficiently large SIMM in bank zero to hold the kernel and RAMdisk. In this case 4Mb is <emphasis>not</emphasis> sufficient. </para><para> Example: In a Sun IPX you have a 16Mb SIMM and a 4Mb SIMM. There are four SIMM banks (0,1,2,3). [Bank zero is that furthest away from the SBUS connectors]. You must therefore install the 16Mb SIMM in bank 0; it is then recommended to install the 4Mb SIMM in bank 2. </para> </sect3>
Attachment:
pgpofPbR06GjE.pgp
Description: PGP signature