Antonio da Silva Martins Junior spake the following on 5/30/2007 9:59 AM:

Hi,

I'm installing CentOS5 on a HP DL380-G4 server with 4Gb RAM. It had SLES9 on it, and SLES9 find all the RAM. But now CentOS5 x86_64 can't find all the RAM.

From free:

[root@Suzuka ~]# free total used free shared buffers cached Mem: 3986376 1591996 2394380 0 113896 1180852 -/+ buffers/cache: 297248 3689128 Swap: 4194296 0 4194296

Can someone had a hint on where is the remaining memory?

Thanks,

  Antonio.

Which SLES9 kernel and which CentOS kernel? And how much memory are you missing?