Messages in this thread | | | Date | Tue, 23 Aug 2005 10:14:56 -0400 | Subject | Re: PROBLEM: Incorrect RAM Detected at kernel init | From | (Lennart Sorensen) |
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On Sun, Aug 21, 2005 at 11:27:51PM -0400, Terry wrote: > Not sure if I have provided enough info, or to much info, but here it goes: > > [1.] One line summary of the problem: > Not Detecting all the memory installed in the system. > > [2.] Full description of the problem/report: > I have Linux Kernel 2.4.31 running on a Compaq 5000R server with 2 PPro 200 > processors, 768M RAM, RealTeck 8139 Network Card, and Compaq Smart 2 Raid > controller with 5 9.1G drives in Raid 5 configuration. > The kernel appears to compile perfectly, installs fine, but after reboot it > is only reporting 16M of RAM. I have tried with and without the mem=768M > boot up option in the lilo.conf script. All other modules and boot up > includes appear to run perfectly fine. I had a 2.4.18 kernel running on this > box just fine, detected all 768M of RAM and ran perfectly. The 2.4.31 Kernel > runs almost perfectly, the only hold back is the false detection of memory.
Compaq machines of that era are known to have non standard bios methods for identifying ram. Do a google search for how to pass memory maps to 2.6 kernels on a compaq.
ie something like:
mem=exactmap mem=640K@0 mem=1023M@1M
Add that to the kernel command line when booting and see what happens.
Len Sorensen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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