Puppy Linux Discussion Forum

cobaka

... less - but you know the cost in performance.)
(6) I had a little trouble installing Puppy Linux to the 8600, that is because you must use the forcepae instruction in the booting operation. bigpup solved the "pae" problem for me! YAY bigpup.
(7) I have nothing more to say, except I am confident ...

... such as Geany or
Leafpad. Find the "stanza"(s) that load your Pup...look for the line that reads kernel and at the end of
that line add your forcepae, acpi=off. Do this for each stanza, these control how your Pup boots.

If using Grub4DOS, look for a file named menu.lst. Then do the steps above ...

lradams244

I loaded nobelPub32 to an older laptop that does not support PAE, so every time reboot I have to edit the command line adding "forcepae acpi=off". How do I set this boot parameter permanently.

Thanks
Leon

mikeslr

... indicates that your CPU is an Intel Mobile Pentium III-M. IIRC, in order to boot Pentium III-Ms requires that the bootloader include the command 'forcepae'. Not easy to obtain when booting from a CD. I think (please confirm) the evo-n600c has two USB ports. If so, don't be concerned if you need them ...

wizard

@tosim

The T43 uses a pentium M, so yes. Just add: forcepae to the end of the kernel line in the menu.lst file.

wizard

tosim

@wizard Do I have to use the "-- forcepae" with my T43 when I finally get to (frugally) install Puppy?

wizard

@rockedge
@rcrsn51

For comparison:

Thinkpad T41 Pentium M, Bionic32
forcepae = boots
-- forcepae = (space before forcepae) boots
--forcepae = (no space before forcepae) boot fails

wizard

So what happens if you remove the -- argument?

On the IBM T-42 if the -- argument is not added the forcepae is ignored. This 2004 laptop machine is only 32 bit, has no hard drive and no battery. Boots Tahr , Xenial and Bionic 32 bit variants but only with the -- forcepae argument and parameter. I ...

rcrsn51

rockedge wrote: Fri Oct 25, 2024 1:05 am
-- forcepae WITH a space.

So what happens if you remove the -- argument?

rcrsn51 wrote: Thu Oct 24, 2024 4:37 pm
Are you sure that it's "--forcepae" WITHOUT a space and not "-- forcepae" WITH a space? The first one makes no sense as a kernel boot parameter.

-- forcepae WITH a space.

rcrsn51

Are you sure that it's "--forcepae" WITHOUT a space and not "-- forcepae" WITH a space? The first one makes no sense as a kernel boot parameter.

The only parameter that makes sense in Puppy is wizard's "forcepae".

... computers in 2003. If you install Puppy on a Pentium M you will likely get a boot error message such as:
WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk!

You may be able to fix the error by adding "forcepae" to the kernel line in the file: menu.lst
Use Geany editor to ...

wizard

... computers in 2003. If you install Puppy on a Pentium M you will likely get a boot error message such as:
WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk!

You may be able to fix the error by adding "forcepae" to the kernel line in the file: menu.lst
Use Geany editor to ...

Using -- or not using it in the forecepae command is most likely something to do with this:
https://help.ubuntu.com/community/BootOptions/before--after

Older Puppy versions that did not have this kernel patch.

Kernel patch that changed the previous behaviour was:

commit 51e158c
Author: Rusty ...

... not show the PAE support flag in their CPUID information (even though it is supported internally). However, this can be easily bypassed with the forcepae option.

All kernels for 32bit Puppy versions, seem to now only be configured to use PAE. They do not provide a pae or non-pae kernel.
So they ...

cobaka

rcrsn51

In this link -> https://www.forum.puppylinux.com/viewtopic.php?p=6674&hilit=forcepae#p6674
you will find I had a long discussion about this topic with the well-known (and almost famous) BigPup .
BigPup is a well informed and very helpful fellow.

The answer to my Q isn't important.
I'm ...

rcrsn51

In the previous setup, did you know for sure that the -- was required? Or did you just use it because someone suggested it?

cobaka

Hello all:

The forcepae command is used with the Pentium "M" series CPU to force compatibility (or bootability) with the Puppy OS.

Dell Inspiron D800 and 8600 laptops use the Pentium "M" CPU.
I used forcepae previously with a Dell 8600 laptop - allowed me to boot an otherwise un-bootable laptop.
In ...

roflkaapter

Hello, I have not attempted with this particular distro, but on my T41 with Banias core I have found success with appending "noexec=off forcepae" to kernel command line to disable NX bit and utilize the unflagged PAE support in both Devuan and Void Linux.

wizard

Andy Kay

Have some laptops with single core Pentium M cpus that require forcepae. Here is an example menu.lst file (in this case for Bionic32) that works, the kernel line shows the correct syntax (no dashes).
Title Puppy upupbb 19.03 (sda2/bionic32)
root (hd0,1)
kernel /bionic32/vmlinuz psubdir ...

Andy Kay

... option. Perhaps too little RAM to permit this to work properly.

As you say, from what williams2 wrote it looks like I shouldn't need the help of forcepae , so that seems like nothing more than a misleading distraction. A trap for the not-so-bright.

Thanks for your suggestions regarding an older ...

IIRC, this goes on the "kernel" line, such as kernel /Pup32/vmlinuz --forcepae, note the double dashes (--) in the grub4dos menu.lst (little L).
Wiz

Thanks Wiz. The interaction now looks like this:

grub> kernel /Pup32/vmlinuz --forcepae

Error 15:(http://grub4dos.chenall.net/e/15)
File not ...

Andy Kay

... need PAE.

A few defective 32 bit cpus were manufactured that can use PAE
but the information in the cpu says it does not have PAE capability.
forcepae is only needed for these few cpu chips that do support PAE
but report that they do not.

So, if you have 4G or less of ram, then
you do not need ...

Andy Kay

IIRC, this goes on the "kernel" line, such as kernel /Pup32/vmlinuz --forcepae, note the double dashes (--) in the grub4dos menu.lst (little L).
Wiz

Thanks Wiz. The interaction now looks like this:

grub> kernel /Pup32/vmlinuz --forcepae

Error 15:(http://grub4dos.chenall.net/e/15)
File not found ...

williams2

... need PAE.

A few defective 32 bit cpus were manufactured that can use PAE
but the information in the cpu says it does not have PAE capability.
forcepae is only needed for these few cpu chips that do support PAE
but report that they do not.

So, if you have 4G or less of ram, then
you do not need ...

IIRC, this goes on the "kernel" line, such as kernel /Pup32/vmlinuz --forcepae, note the double dashes (--) in the grub4dos menu.lst (little L).
Wiz

Andy Kay

... PUP32 from DVD onto a very old Fujitsu notebook presently running Windows XP.
The error message reads:
WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk!

The problem is that I can't find a place to use that parameter.
I tried entering Grub4Dos command line and typing ...

Andy Kay

... 16G which the machine can treat like a HDD. Not the most elegant solution and the laptop's CPU doesn't support PAE and needs kernel command line forcepae to use Tahr-6.0.5, and I was using it to test Puppy Linux OS experiements but limited to 32 bit now it only sits on on a shelf in a closet.

More ...

... drive of 16G which the machine can treat like a HDD. Not the most elegant solution and the laptop's CPU doesn't support PAE and needs kernel command line forcepae to use Tahr-6.0.5, and I was using it to test Puppy Linux OS experiments but limited to 32 bit now it only sits on on a shelf in a closet.

dancytron

... HDD and no battery) with Lupu-5.2.8 as the OS from a USB flash drive. This laptop loves Lupu-5.2.8 and also UPUP Raring 3.9.9.2 and can handle a forcepae parameter on the kernel command line.

I agree, try with the boot stanza simplified :geek:

I had a locked down work laptop, so I just surfed ...

Puppy Linux Discussion Forum

Search found 132 matches: forcepae

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