I have installed 12 GB to my FreeBSD 6.2 machine with i386 and I reinstall my kernel with PAE, but still I can see my memory is 4 GB. How can I fix this? Many people told me that I can fix this by upgrading FreeBSD to latest version, 8.2. Is there any other method? Also I would like to know freebsd-update method, how safe I can upgrade it. Does it crash? Is there any chance of losing files and configurations?
Code:
# sysctl -a |grep mem
memdesc 1 4K - 1 4096
vm.kmem_size: 335544320
vm.kmem_size_max: 335544320
vm.kmem_size_scale: 3
vfs.ufs.dirhash_maxmem: 2097152
vfs.ufs.dirhash_mem: 2000488
debug.fwmem_debug: 0
hw.physmem: 4284469248
hw.usermem: 4003291136
hw.realmem: 1073741824
hw.firewire.fwmem.eui64_hi: 0
hw.firewire.fwmem.eui64_lo: 0
hw.firewire.fwmem.speed: 2
hw.cbb.start_memory: 2281701376
hw.pci.host_mem_start: 2147483648
p1003_1b.memlock: 0
p1003_1b.memlock_range: 0
p1003_1b.memory_protection: 0
p1003_1b.shared_memory_objects: 1