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I figured out from scratch how to "RAMboot"--copying the entire OS into a tmpfs ramdisk and then spinning down the hard drive.
The result is a stunningly fast and silent computer. I used to wait a few seconds after clicking on "Firefox" before the web browser came up. Now, it opens up before I lift my finger off the mouse button! Running entirely from RAM is FAAAAAAAAAAST.
That's the coolest thing I've done in Linux. I got my computer's OS "drive" to vastly outperform the fastest Raptor, the fastest RAID array, the fastest SSD--without spending a penny.
Yes, it's loaded from the hard drive, and is NOT compressed. I'm writing up a how-to once I work out all of the kinks.
The basic idea is to create a copy of the OS partition and then use a simple script to delete unnecessary files. This includes the documentation and man pages, on the assumption that I have another computer to read documentation from (I do). It also includes a bunch of drivers I know I don't need for my hardware. This reduces the size of the resulting image down to less than 400megs. I think I could strip out a lot more stuff, if I look around for more unnecessary files.
That simple shell script then rolls up the stripped down image into a tarball. I first tried simply copying over the directory using "cp -vax", but that failed. The version of "cp" available in the initial ramdisk is pretty limited, and just can't handle copying over such a large directory structure. In contrast, tar had no problem with such a large image.
I only use "RAMboot" for a couple workstations with more than 512megs of RAM. I first experimented with it on a machine with 384megs of RAM. It was a tight fit, and even with just Iceweasel/Firefox running, browsing to a resource heavy web page could cause the web browser to unceremoniously quit.
No, I never go to Houston. Once a year, we visit Dallas for Project A-Kon.
I would love to do a demonstration, although the gas costs from Baton Rouge would be significant. E-mail me about it. Maybe July 12? Hmm...looking at my schedule, probably not so soon.
wrote a kernel driver to integrate a linux host with a texas instruments digital signal processor across the PCI bus, then wrote a server that would communicate with a specific Windows client, permitting a user on a Windows machine to command and control the TI DSP through the Linux box.
Oh.. Now I feel as though what I have accomplished is worthy of being posted... Anyway, since I've had a paradigm shift to using xmonad, coupled with my family complaining about me occupying a prime spot for a computer and not being able to use it, I've created a guest account that uses LXDE + Compiz-fusion for the desktop environment. I'll be using an RBAC security system to limit the account, while still make it usable for people to gain access to optical drives, usb devices, sound and video. I will also disable the logout feature because I'm anticipating most people who are going to use that account won't know about
Code:
startx -- :1
I should probably also mention I'm not using a display manager of any sort. So I'll be switching back and forth between displays with Ctrl+Alt+F7 and Ctrl+Alt+F8.
I'm planning on turning a computer we have from 97 or 98 into a MAME arcade emulator. I'm using a sort of vga box to link my SNES into my LCD monitor. It also accepts a vga input. Since my monitor accepts both vga and dvi input, my current computer will occupy the dvi input, while the vga box will occupy the vga input. So basically I have an SNES, retro arcade emulator and a PC hooked up to my monitor.
First off Im a total NOOB so this took me a day or two --The coolest thing that I've done is... Configuring my linksys wireless card and Nvidia GeForceGO2 Video Card.
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