David
So I've got this old Toshiba Satellite Pro A100 that I'd like to try installing a more modern OS on, but I'm not sure whether it will run 64-bit OS's, or whether I need to stick to 32-bit (like [Mint 19.3 Xfce 32-bit][1]). I got this out from the system info on this machine, which is currently running an ancient version of Linux Mint:[^a]
```
-Processor-
Name : Intel(R) Celeron(R) M processor 1.40GHz
Family, model, stepping : 6, 13, 8 (Pentium III/Pentium III Xeon/Celeron)
Vendor : Intel
-Configuration-
Cache Size : 1024kb
Frequency : 1393.30MHz
BogoMIPS : 2786.59
Byte Order : Little Endian
-Features-
FDIV Bug : no
HLT Bug : no
F00F Bug : no
Coma Bug : no
Has FPU : yes
-Cache-
Cache information not available
-Capabilities-
fpu : Floating Point Unit
vme : Virtual 86 Mode Extension
de : Debug Extensions - I/O breakpoints
pse : Page Size Extensions (4MB pages)
tsc : Time Stamp Counter and RDTSC instruction
msr : Model Specific Registers
pae : Physical Address Extensions
mce : Machine Check Architeture
cx8 : CMPXCHG8 instruction
apic : Advanced Programmable Interrupt Controller
mtrr : Memory Type Range Registers
pge : Page Global Enable
mca : Machine Check Architecture
cmov : Conditional Move instruction
clflush : Cache Line Flush instruction
dts : Debug Store
acpi : Thermal Monitor and Software Controlled Clock
mmx : MMX technology
fxsr : FXSAVE and FXRSTOR instructions
sse : SSE instructions
sse2 : SSE2 (WNI) instructions
ss : Self Snoop
tm : Thermal Monitor
pbe : Pending Break Enable
up : smp kernel running on up
bts : Branch Trace Store
```
Thanks for any help with this (a bit lame for a question, I know, but it's a genuine one)!
[1]: https://www.linuxmint.com/edition.php?id=277
[^a]: V. 13 "Maya" Xfce, released 21.07.2012, reached EOL 04.2017—FWIW.
Top Answer
Jack Douglas
The list of capabilities you have there is the list of flags in the output of `/proc/cpuinfo`:
```
$ cat /proc/cpuinfo | grep flags
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl xtopology cpuid tsc_known_freq pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti
```
You [are looking for](https://askubuntu.com/a/37160) `lm`, which isn't present I'm afraid, so your CPU is 32-bit only.