I had been using Lubuntu on this laptop of mine for quite some time. In order to install Lubuntu I had to use the --forcepae command. That is my processor has PAE support but must be force started. Below is the output of hardware-info regarding my processor.
-Processor-
Name : Intel(R) Pentium(R) M processor 1.80GHz
Family, model, stepping : 6, 13, 6 (Pentium III/Pentium III Xeon/Celeron)
Vendor : Intel
-Configuration-
Cache Size : 2048kb
Frequency : 1800.00MHz
BogoMIPS : 3590.92
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
sep : Fast System Call (SYSENTER/SYSEXIT)
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
bts : Branch Trace Store
est : Enhanced SpeedStep
tm2 : Thermal Monitor 2
Now I wanted to install puppylinux on the same system and dual boot both. I downloaded the PAE version of puppylinux but it failed to load informing me that I do not have PAE support. So I downloaded and installed the noPAE version and it ran as expected, after installing puppylinux, I ran GRUB4DOS so that it detects my other Ubuntu installations and I can dual boot.
The thing is that when I select Ubuntu 15.04 from the grub4dos screen at start i get the message that PAE is disabled or non-existant and that I should install the version suitable for my system.
When Ubuntu was installed with forcepae, why did it get disabled with the noPAE install of puppy? Cant I keep both? or am I forced to choose only one?
P.S. I installed this version of PuppyLinux: http://bkhome.org/news/?viewDetailed=00097
