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Originally Posted by arjaybe
Keep in mind that Gregg is using Xubuntu, with the XFCE desktop, which has very low RAM requirements. My XFCE install (on 32-bit) uses 130MB on start-up. My 64-bit install uses more -- about 400MB (it has some KDE stuff running at boot, in addition to the extra draw by 64-bit.) I expect Ubuntu uses more, how much I don't know.
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I have Ubuntu installed on several machines in multi-boot mode. I haven't tried to measure RAM use lately.
Xubuntu is simply a custom spin of Ubuntu which uses XFCE by default. Lubuntu is a similar spin using Lxde. Kubuntu uses KDE. Standard Ubuntu uses Canonical's Unity environment by default, but you can install and use something else instead, and pick which desktop environment you want from the Login screen.
My old Fujitsu p2110 notebook runs Ubuntu 12.10 with Lxde. It has a whopping 256MB RAM, of which 16MB are grabbed off the top by the Transmeta Cruse CPU for code morphing. I originally installed Xubuntu. It installed without a hitch and ran, but was snail slow. Posters on the Ubuntu forums felt too much Gnome had crept into Xubuntu, and Canonical had a steadily increasing idea of what "low end" was. They recommended what I did: reinstall from scratch from the Minimal CD to get a working CLI installation, then use apt-get to cherry pick what I wanted. Lxde was the lightest weight desktop environment, and it brought Xorg with it. The result was a working GUI system with bearable performance, especially when installed on an ext4 file system.
It's staying at 12.10. I hosed the system and had to redo from scratch attempting to do a version upgrade from that. The upgrade went fine till the last step. The new kernel required PAE support, the p2110 didn't have it, and the kernel install failed. This caused a cascade failure and an effectively unusable system on reboot. I really think if PAE support was a requirement that a test for that be done first and the upgrade cancelled if it wasn't present, but the folks creating the upgrade apparently never thought it might occur on a non-PAE system.
My 32 bit Acer netbook came with WinXP. I repartitioned and installed Ubuntu on it, too, again using Lubuntu on ext4. Performance on a 1.6mhx dual cote Atom CPU with 1.5GB RAM is acceptable. It would handle XFCE, but Lxde is a decent enough fit for what I do to serve my needs.
My 64bit desktop uses standard Ubuntu, but I tend to boot into Lxde or XFCE as better fits for the way I work. I looked at a lot of desktops along the way, and have Gnome Classic, Enlightenment, and a few other things as well when I feel like playing.
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I know Gregg can handle it. He's a resourceful guy.-)
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He can likely live with installed RAM now, but future needs may change.
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Dennis