Based on my earlier comment and the recent update that this is not a kernel issue, I have updated this bug to also relate to grub - as I believe that is the real source of the problem not the kernel.
** Also affects: grub Importance: Undecided Status: New -- CONFIG_HIMEM4G does not allow 4gb of ram in kernel https://bugs.launchpad.net/bugs/189269 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs