PAE (Physical Address Extension) is a feature which allows 32-bit x86 processors to access more than 4GB of memory (RAM). As of Ubuntu 12.04, the PAE kernel is the default for 32-bit installations. PAE is supported by all Intel processors since the Pentium II and by AMD since the Athlon; notable ...

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Ubuntu 14.04 installation hangs despite of — forcepae option

trying to install the new Ubuntu 14.04 on my old laptop I got the message: *ERROR: PAE is disabled on this Pentium M (PAE can potentially be enabled with kernel parameter "forcepae" - this is ...
10
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3answers
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How can I tell if a machine has PAE?

I want to help someone upgrade an oldish laptop from 11.10 to 12.04, which requires PAE. I am not sure whether they have PAE or not. I know it is likely that they do have it after all, but how can I ...
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6answers
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Intel Core i3 CPU is not 64 bit?

According to this page: https://help.ubuntu.com/community/32bit_and_64bit the following Intel CPU's are 64bit: Intel F and 5x1 series Pentium 4 using the "Prescott" core Pentium D Core 2 (Solo, Duo ...
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1answer
57 views

kubuntu Xenial i386 and 8GB of RAM

I'm running kubuntu 16.04 i386 and have just installed additional RAM. It seems that 16.04 doesn't have pae kernel: E: Unable to locate package linux-generic-pae E: Unable to locate package ...
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1answer
51 views

How do i run the dist upgrade on a forcepae install?

I think the main issue based on this line in the error message from the package manager. This kernel does not support a non-PAE CPU. How do I run the dist upgrade on a forcepae install? Extra ...
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2answers
173 views

Ubuntu 14.04 RAM not usable — mallocate problem

I have a strange situation where my Ubuntu server (14.04) is not recognizing all of the memory installed in my server. I have a HP Proliant DL 380 G3 server (32bit) with 10 GB memory. I couldn't use ...
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2answers
150 views

Ubuntu 14.04 32bit OS with 4g physical ram and pae still shows 3.2g ram

I upgraded 2gb memory to 4gb on Lifebook 6025. I followed instructions for pae to recognize the 4gb by doing sudo apt-get install linux-headers-server linux-image-server linux-server edit grub by ...
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1answer
46 views

PAE boot failures [duplicate]

I tried loading Ubuntu 14.04.3 onto an older Dell Inspiron Laptop and I get the following message: WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk! This kernel requires the ...
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0answers
32 views

How to upgrade from to latest release without PAE support on CPU

I have an Alix1.d small server that currently runs Ubuntu 13.04 and I'd like to bring it to the latest release. I think that I must go through all the upgrade steps, which will be very time-consuming, ...
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0answers
57 views

How do I add PAE flag at startup?

I have a non pae notebook, (Gateway M4520GZ) with Lubuntu 15.10 installed. To do the major upgrade to 15.10, I had to run the following commands to add the pae flag to my cpuinfo file. sudo cat ...
0
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1answer
84 views

Dell Inspiron 8600 pae?

I have a Dell Inspiron 8600 laptop that is running Windows XP (SP3) that I dug out of my attic the other night. It will boots up, lasts about 5 minutes (only for one user account). Then it pops and ...
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1answer
1k views

Install Lubuntu on Thinkpad T41

Is there an easy way to install Lubuntu on an old T41 with a Celeron M? What I tried: Downloaded the 32 Bit version of Lubuntu install Ubuntu 15.04 on my USB drive with unetbootin additionally ...
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0answers
125 views

Ubuntu 12.04 only recognising 2.9Gb Ram out of 4Gb

Yes it is a 32-bit installation, but there is supposed to be PAE that allows it to use all of the ram. The command: sudo lshw -class memory | grep GiB -m 1 Tells me that yes there is 4Gb ...
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3answers
3k views

Lenovo T60P with 4GB of RAM, Ubuntu 11.04 and 11.10 only see 3GB

I have a Lenovo ThinkPad T60P with 4GB of memory (BIOS sees all 4GB RAM). I have installed Ubuntu 11.04 and 11.10 and both are only recognizing 3GB RAM. Please advise. Thanks. Updates Used 32bit ...
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0answers
57 views

Ubuntu won't boot after installation

I'm new to Linux and just installed Ubuntu 14.04.3 LTS on my old Win XP machine. I got a message saying that it doesn't support PAE, but I used the forcepae command and the installation continued ...
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0answers
69 views

Forcepae upgrading?

I have a pc, I still hvae ubuntu 12.04, I am trying to upgrade to 14.04 but it keeps telling me that I do not have pae, how would I forcepae my upgrade from the terminal? I just need the command for ...
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1answer
189 views

Non-pae plus unstable Intel display driver [duplicate]

I have three (Pentium M) laptops. They are all in a good physical state and work perfectly well, so I have no reason to stop using them When I first attempted to update to 12.04 the installation ...
0
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1answer
49 views

VirtualBox not detecting processor PAE

This is my system configuration Linux 3.13.0-59-generic #98~precise1-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux I am trying to run Windows 10 in Virtual box. But I am getting Windows error stating ...
18
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1answer
22k views

Virtualbox install 12.04 guest: “pae not present”

I get this message while trying to install Ubuntu 12.04 as a guest in VirutalBox 4.1.18, on an Ubuntu 10.04 host. This kernel requires the following feature not present on the CPU: pae Some ...
0
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0answers
142 views

Enable PAE linux-generic-pae not found

I have ubuntu 15.04 running on a 32bit CPU. I had 4Gb of ram and added another 4Gb. To have access to the additional memory I need to enable PAE so I tried to do: sudo aptitude install ...
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3answers
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For a 32-bit kernel, what are the pros/cons of PAE vs. non-PAE?

I am using Ubuntu 12.04 32-bit. My kernels are PAE kernels. I know these are the kernels we can use for 32-bit OS which have 4 GB RAM, to utilize all 4GB of RAM. My system is a 32-bit system. So I ...
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1answer
6k views

Can I install Ubuntu 14.04 LTS on a laptop without pae?

Since my computer dates back to 2003, has an Intel Pentium M processor and is therefore not yet equipped with pae, I want to know if it is possible to install newer versions of Ubuntu as the version ...
0
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1answer
91 views

Ubuntu sees 3 out of 4GB of RAM on PAE supported 32bit system

I have 4 gigs of memory inside my laptop but only 3 gigs are showing up and PAE is supported as shown below. Why can't I use all 4 gigs of memory even though my 32 bit system shows that it supports ...
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3answers
11k views

cannot install Ubuntu (message about PAE) [duplicate]

I received the error message below on the black terminal screen after waiting for a reboot.. I tried to find "forcepae" in the available options but couldn't. Can Anyone please help? ERROR: PAE is ...
79
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7answers
287k views

How can I install on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”)

After burning Ubuntu 12.04 to a CD, I tried booting and got the message: This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for ...
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1answer
83 views

Latest kernel update (.43) crashes my pae system

I have been happily running a 14.04 system but the latest kernel update has frozen my system. The background; I have been using the 32 bit ubuntu distribution (I have no idea why) and booting with the ...
0
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1answer
2k views

Adding forcepae to bootable usb stick from ubuntu-14.04.1-desktop-i386.iso

I have a Dell D400 laptop with 512mb of RAM. (A 2gb upgrade is on the way.) The laptop is running Ubuntu 12.04 but has some issues (like the apparent absence of any of the wireless networking ...
0
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1answer
369 views

ForcePAE for Linux Live on Pentium M on memory stick

I'm a Windows user with moderate skills. I've set a couple of minimal ("grandmother") users on Ubuntu when old XP installations got too tangled with age. I'm not a native Linux user and tend to run ...
0
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1answer
97 views

Is Ubuntu 32bit limited to 4Gigs of RAM

OK I have a Poweredge 2650 we are repurposing. Since it doesn't support 64bit :( I have to use the 32bit. However I know windoze has the 4gig limitation. Does 12.04 i386?
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1answer
103 views

PAE kernel with 32bit OS

We have procured Dell Blade M620 with 128GbRAM and Dell Rack R820 with 128GB Ram servers. Now on this I am required to install i386 12.04 Server, as the application what we have runs on 32Bit OS only. ...
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0answers
777 views

How can I upgrade to Lubuntu 14.04.1 withot a PAE kernel?

On my Dell Latitude D800 laptop, which has an old Pentium M without PAE support, I was able to successfully install Lubuntu 14.04 from the CD. When I try to upgrade, I get the error: PAE not enabled ...
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0answers
43 views

Need help choosing an install version [duplicate]

I have an old laptop I want to install on its a 32bit system and does not appear to have PAE (at least that's the message I get when trying to install) Can someone please point me in the right ...
0
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1answer
786 views

Will Ubuntu run on old Dell Pentium M 512 ram [duplicate]

Trying to reuse this old dell laptop,,,I can't find a ubuntu or mint distro that the cpu will accept? Is it just too old to function? Came with xp pro 32 bit? Thanks for help/suggestions John in ...
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2answers
2k views

Enabling PAE in Ubuntu 12.04 on Asus EEE PC 1025C

I have a EEE PC 1025C which came pre-loaded with Windows 7 Starter Edition. I installed Ubuntu 12.04 32-bit as dual-boot with no difficulties. An output of uname -r gave an output of ...
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1answer
1k views

How do I boot Ubuntu in VirtualBox complaining that my CPU is incompatible?

After a long time spent with OS from boys from Redmont I would like to try something new. I decided to try some Linux editions, also Ubuntu Linux. I am completely new to this matter, this is also my ...
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3answers
49k views

Unable to Install VirtualBox Due to Missing Kernel Module

I am trying to install VirtualBox on my Ubuntu. I first tried to sudo apt-get install virtualbox-ose in a terminal, but after the configuration step, it fails with an error: No suitable module ...
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2answers
90 views

How to run Ubuntu after installing it on Lubuntu OS?

I had the problem of PAE kernel discussed here I decided to do as described in the first workaround by installing Lubuntu. After I finished installing Lubuntu, I ran the sudo apt-get install ...
0
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1answer
117 views

Can't Boot An Intel Equipped Laptop From the Burned ISO For 13.10 ISP (X386)

Keep getting an error message that "This kernel requires the following features not present on this CPU: pae". I'm running an Intel Pentium M 2.0 GHz, with 2 GB of RAM on a 60 GB hard drive. This is ...
5
votes
4answers
13k views

Is there any version of Ubuntu that does not require PAE?

For the first time I tried to install Xubuntu 12.04 on my computer using the Grub4dos way. However, it stuck and showed "This kernel requires the following features not present on the CPU : PAE". I ...
0
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1answer
163 views

Boot off of Ubuntu 12.04 using old kernel

Here's the thing, I was resizing my partition and gparted crashed (I was running Ubuntu 12.04 LTS and Windows XP SP3 dual boot), so now my computer won't boot. I wanted to try and use the PPA ...
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1answer
69 views

How to restore previous pae

I installed ubuntu 12.04 LTS on VMWare Workstation. On server, I installed Ubuntu-desktop. Everything is OK. But when I upgraded pae and other files pointed by update manager, It became trouble. ...
0
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1answer
480 views

Only 3GB of RAM with PAE kernel on 12.04

I've installed 4GB RAM on my Thinkpad X60 running Ubuntu 12.04. Then I've installed PAE-enabled kernel. Now uname -r outputs 3.2.0-50-generic-pae My CPU is capable of PAE: $ grep pae /proc/cpuinfo ...
9
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1answer
7k views

How to replace a PAE kernel with non PAE Kernel?

After reading the information from my Question pros/cons of PAE , i want to remove PAE kernel because i don't need them . I know removing a kernel from Synaptic Package Manager . Thats easy job but ...
2
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1answer
7k views

Can I Install Ubuntu on a older laptop with a intel pentium processor (which doesn't have pae)?

I currently have Ubuntu 11.10, and I finally decided to upgrade. So I downloaded the .iso file from the site (Ubuntu 13.04, 32 bit), and put it on a 2gb thumb drive. I booted from the thumb drive, and ...
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3answers
2k views

64bit Failed to execute init when booting from PAE kernel, 32bit works fine

Installed 64bit from livecd. Works perfectly as installed with generic kernel. Installed PAE kernel via apt-get and upon reboot get: Failed to execute /init Kernel panic - not synching. No init ...
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1answer
88 views

My pc works at high performance due to Ubuntu 12.10 [closed]

I have a dell pc. It is have two graphics card (4100 and 7730m). I used solves on internet sites but then borders and desktop menu disappers. Sorry for bad English. Please help me!
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3answers
7k views

Ubuntu 12.04 LTS 32bit does not detect 4Gb ram

I have recently installed 4Gb of ram for an existing 12.04 32bit Ubuntu. It's not being recognised, only 3.2Gb is showing, See: administrator@Root2:~$ free total used free ...
3
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1answer
2k views

Non-PAE system updating to PAE kernels?

I just had an Ubuntu system of mine completely die on me after upgrading it and now I am confused. Basically, it is an older machine (Intel P3, 512MB RAM, etc) that I use as a command line only test ...
0
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4answers
3k views

4GB RAM not detected

I've got 4GB on my machine (two cards of 2GB) although the command free -m says: total: 2001 used: 1816 free: 185 I've got 12.04 and I think PAE should be installed and enabled automatically. ...
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1answer
830 views

java not allowing for the use of all 8gb of ram

I have a 32bit version of Ubuntu server with PAE active allow for the full use of the 8gb of RAM but I can't use more than 2gb of RAM in Java. I run the command java -Xms6G -Xmx7G -jar server.jar ...