Linux doesn't see new RAM

LavaDevil94 · 08-20-2004, 03:24 PM

I just installed another 512MB module to make 1 GB of RAM in my machine. The BIOS sees the new memory fine, so it's not a hardware problem. Linux sees new memory too, but only a little. It sees 886 MB, when it should be 1024MB. Does anyone have any suggestions? I'm running kernel 2.6.7. If you need to know anything else, just let me know.

mermxx · 08-20-2004, 03:47 PM

in lilo.conf what memory parameters do you have? Do u have mem=512 then maybe u could try changing this to mem=1024 ( not sure in mandrake if it is append=mem=1024)
then run /sbin/lilo.conf after u have made the changes and reboot to apply. U shouldn`t need to keep adding the parameters to your kernels.
Have u tried checking the output of free -m
Hope this helps :-)

LavaDevil94 · 08-20-2004, 03:58 PM

I don't have any mem parameter in my lilo.conf, although I'll try adding one and tell you if it works. Thanks.

LavaDevil94 · 08-20-2004, 04:33 PM

Tried the option, Linux didn't boot and I had to rescue the bootloader. However, dmesg is telling me that I have to use a HIGHMEM (it says it in caps) enabled kernel. Does anyone know which option that is?

mermxx · 08-20-2004, 04:58 PM

sorry that didn`t help too much. highmem is configured using the command config_highmem but I would google about the possible `pitfalls` of doing this.

michaelk · 08-20-2004, 05:01 PM

You will need to recompile the kernel. In the menuconfig its under processer type and features.

LavaDevil94 · 08-20-2004, 05:58 PM

Thanks, I'll try that.

LavaDevil94 · 08-20-2004, 09:11 PM

It worked! Just recompile with Highmem support. Thanks!