Fernando Thanks for your reply. According to the manual, (text in quotes in the original post) should work fine with Ubuntu 32-bit.
I placed my host with Ubuntu 64-bit Karmic. I imported my 32-bit virtual machines, including Windows 2008 Server Enterprise and voila this GUEST recognized all the RAM that I assigned with virtualbox (14GB). But note the following. The hardware that I use includes an Intel Xeon processor with 8 cores, which are recognized by the host (Ubuntu Karmic 64bits) but the GUEST Windows 2008 server only recognizes one core. What may be happening? Best regards and thanks in advance for any response. ____________________________________________ Solón Cáceres Moreno Systems Engineer Personal Home Page: http://solca-ws.bogotanos.net/ Post Spanish Version: Fernando Gracias por su respuesta. Según el manual, (texto entre comillas en el post original) debería funcionar correctamente con Ubuntu de 32 bits. Yo Coloqué mi HOST con "Ubuntu Karmic 64 bits". Importé mis máquinas virtuales de 32 bits, en especial Windows 2008 server enterprise y voila este GUEST reconoció toda la RAM que le asigné con virtualbox (14GB). Sin embargo observo lo siguiente. El hardware que utilizo incluye un procesador Intel Xeon con 8 núcleos, los cuales son reconocidos por el HOST (Ubuntu Karmic 64bits) pero el GUEST Windows 2008 server sólo reconoce Uno núcleo. Qué puede estar sucediendo? Saludos cordiales y gracias de antemano por cualquier respuesta. ____________________________________________ Solón Cáceres Moreno Ingeniero de Sistemas Página Personal: http://solca-ws.bogotanos.net/ El 18 de diciembre de 2009 07:53, Fernando Cassia <[email protected]>escribió: > I guess you´re aware that 32-bit OSs cannot typically address more > than 4GB of RAM. > > Thus, on a 16GB RAM system, you´ll be much better by running a 64-bit > host OS. As simple as that. > > PAE is just a trick, that allows a given process to get its own 4GB > flat address space. > > http://en.wikipedia.org/wiki/Physical_Address_Extension > > ...in the same way XMS and EMS allowed programs to bypass the 640K DOS > limitation ages ago... > > FC > > 2009/12/18 Solón Cáceres Moreno <[email protected]>: > > I have a proliant server ML350 G6 with 16 GB of RAM and Linux Ubutu 9.10 > > (Karmic) 32-bit kernel with PAE. That's my host and I'm running > virtualbox > > 3.12. > > > > Virtualbox will not let me create virtual machines (guests) with more > than > > 2.5 GB of RAM. For example, I am creating a virtual machine Windows 2008 > > Server Enterprise and I can assign up 2.5Gb of RAM which is very little > to > > the requirements of this operating system. > > > > The Virtualbox manual online says: "...the "Enable PAE/NX" setting > > determines whether the PAE and NX capabilities of the host CPU will be > > exposed to the virtual machine. PAE stands for "Physical Address > Extension". > > Normally, if enabled and supported by the operating system, then even a > > 32-bit x86 CPU can access more than 4 GB of RAM. This is made possible by > > adding another 4 bits to memory addresses, so that with 36 bits, up to 64 > GB > > can be addressed. Some operating systems (such as Ubuntu Server) require > PAE > > support from the CPU and cannot be run in a virtual machine without it". > > > > I have done all the processes recommended in the forums and the manuals > and > > the situation remains the same. I do not want to install 64-bit operating > > systems because I think we still have missing drivers, among other > things. > > > > What may be happening? > > > > Greetings from Colombia, > > ____________________________________________ > > Solón Cáceres Moreno > > Systems Engineer > > Personal Home Page: http://solca-ws.bogotanos.net/ > > > > > > Spanish Version post: > > Yo tengo un servidor proliant ml350 G6 con 16 GB de memoria RAM y Linux > > Ubutu 9.10 (Karmic) de 32 bits y kernel con PAE . Ese es mi host y estoy > > corriendo virtualbox 3.12. Virtualbox no me deja crear máquinas virtuales > > (invitados) con más de 2.5 GB de RAM. Por ejemplo, estoy creando una > máquina > > virtual Windows 2008 server enterprise y puedo asignar máximo 2.5Gb de > > memoria RAM lo cual es muy poco para los requerimientos de este sistema > > operativo. > > > > El manual de Virtualbox en línea dice: "...the "Enable PAE/NX" setting > > determines whether the PAE and NX capabilities of the host CPU will be > > exposed to the virtual machine. PAE stands for "Physical Address > Extension". > > Normally, if enabled and supported by the operating system, then even a > > 32-bit x86 CPU can access more than 4 GB of RAM. This is made possible by > > adding another 4 bits to memory addresses, so that with 36 bits, up to 64 > GB > > can be addressed. Some operating systems (such as Ubuntu Server) require > PAE > > support from the CPU and cannot be run in a virtual machine without it". > > > > Yo he realizado todos los procesos que recomiendan en los foros y en los > > manuales y la situación sigue igual. No quiero instalar sistemas > operativos > > de 64 bits porque pienso que aún les faltan drivers, entre otras cosas. > > > > Qué puede estar sucediendo? > > > > Saludos cordiales desde Colombia, > > ____________________________________________ > > Solón Cáceres Moreno > > Ingeniero de Sistemas > > Página Personal: http://solca-ws.bogotanos.net/ > > > > > > _______________________________________________ > > vbox-users mailing list > > [email protected] > > http://vbox.innotek.de/mailman/listinfo/vbox-users > > > > > > > > -- > Dream of the Daily Mail > It is the Holy Grail > And then the BBC > Your life would be complete > > -Manic Street Preachers, "Royal Correspondent" >
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