I have a centos 5 server running on olidata tegeo server with 2 opteron 1800 and 8GB ram. I installed centos 32bit so I should be able to use 4GB. My system on boot recognize 4GB ram but allocate only 2GB. Extract from dmesg: Warning only 4GB will be used. Use a PAE enabled kernel. 3200MB HIGHMEM available. 896MB LOWMEM available. Memory: 2056396k/4194304k available (2043k kernel code, 39416k reserved, 846k data, 232k init, 1179584k highmem) Why it suggest me to "Use a PAE enabled kernel."? Thanks. Giuliano.
g.bacci at flagmail.it wrote: ...> Why it suggest me to "Use a PAE enabled kernel."?Because using a PAE enabled kernel makes it possible to use all your RAM. yum install kernel-PAE Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: mk at crc.dk Homepage: http://www.crc.dk