Hello, this was true for RHEL and CentOS on VMware " To set the memory online in RHEL and CentOS: Note: These instructions work for RHEL and CentOS. Other distributions may be different. Run this command to check the state of the memory, looking for memory that appears offline: grep line /sys/devices/system/memory/*/state If memory appears as offline, set it to online with the command: echo online > /sys/devices/system/memory/memory[number]/state " In Fedora 18 I don't see this files' structure, how did they change in kernels 3.x? What would be hot add memory procedure for 3.7.9-201.fc18.x86_64 kernels? Thanks in advance, Gianluca -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org