我正在使用32位Ubuntu 14.4 LTS。如何确定我的计算机是否可以运行64位操作系统?我对体系结构和CPU操作模式感到困惑。
摘录自/proc/cpuinfo
:
$ grep " lm " /proc/cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx **lm** constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm dtherm tpr_shadow vnmi flexpriority
来自的输出lscpu
:
kamal@kamal-G31T-M7:~$ lscpu
Architecture: i686
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list 0, 1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 23
Stepping: 10
CPU MHz: 2793.084
BogoMIPS: 5586.16
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 2048K
…