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Old 06-19-2008, 09:01 PM   #511
IsaacKuo
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Registered: Apr 2004
Location: Baton Rouge, Louisiana, USA
Distribution: Debian Stable
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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.
 
Old 06-23-2008, 11:12 AM   #512
archtoad6
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Registered: Oct 2004
Location: Houston, TX (usa)
Distribution: MEPIS, Debian, Knoppix,
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I assume you are talking about about a "tmpfs ramdisk" that is loaded from your hd not from a CD.

How big an image is it? -- I ask because Knoppix & other live CD's have a "toram" option, but then need at least a gig of RAM.

How did you do it?
 
Old 06-23-2008, 11:41 AM   #513
IsaacKuo
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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.
 
Old 06-24-2008, 06:27 AM   #514
archtoad6
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Do you ever get to Houston?

I'll bet I could get you an good (50-ish) audience any "even" (2nd or 4th) Sat. No pay, but I bet we could feed & house you.

How's that for an off the wall offer?
 
Old 06-24-2008, 10:06 AM   #515
IsaacKuo
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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.
 
Old 06-30-2008, 01:03 AM   #516
jiml8
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Registered: Sep 2003
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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.

Got well paid for doing it too.
 
Old 07-01-2008, 09:15 AM   #517
Berticus
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Registered: Jul 2005
Distribution: Arch
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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.
 
Old 07-04-2008, 03:07 AM   #518
uppman
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Location: Stockholm, Sweden
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I have written a simple source based software distribution system called Gnuppix.

Some highlights:

Gnuppix, software package handling a'la GoboLinux (and stow) but with a slightly different approach.

The filesystem is the package manager (as in GoboLinux)!

The programs are installed/uninstalled by scripts which are distributed *together* with the program. No package management is needed.

All files (except for the base system) are stored in /gnuppix/programs/

The /usr directory contains (optional) symlinks to the programs in /gnuppix/programs/ (As in stow)

http://linuxconfig.dyndns.org:1184/l...x/Introduction
 
Old 07-04-2008, 03:14 AM   #519
uppman
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A Live CD/DVD with a read/write root (/) filesystem all in RAM. No cramfs or unionfs or squashfs needed..

Runs from a tmpfs RAM disk.

100-XXX MB base system which runs in RAM. Can be based on your favorite distro..

http://linuxconfig.dyndns.org:1184/l...or_Live_CD/DVD
 
Old 07-04-2008, 03:18 AM   #520
uppman
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Install Linux to a removable USB disk and using UUID and/or LABEL to find the root partition.

http://linuxconfig.dyndns.org:1184/l...vable_USB_disk
 
Old 07-04-2008, 03:20 AM   #521
uppman
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Using G4L (Ghost for Linux) to backup and restore a disk or partition.

http://linuxconfig.dyndns.org:1184/l...nd_Restore/G4L
 
Old 07-15-2008, 08:18 AM   #522
8ball
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Registered: May 2007
Posts: 3

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I'm a Linux n00b - the coolest thing I've done is install Ubuntu so I can surf the Net with Firefox! LOL
But I'm learning slow but sure.
 
Old 07-17-2008, 10:43 PM   #523
RWBlue01
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Registered: Mar 2005
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The coolest things I have done.

Install and Run Nessus. But that was a long time ago.

So now the coolest thing I know how to do is install fedora and surf the web.
 
Old 07-24-2008, 02:30 PM   #524
twingod
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Registered: Dec 2007
Location: Detroit, MI
Distribution: Ubuntu 10.04
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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.
 
Old 08-11-2008, 09:33 PM   #525
IsaacKuo
Senior Member
 
Registered: Apr 2004
Location: Baton Rouge, Louisiana, USA
Distribution: Debian Stable
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If anyone's interested in my HOW-TO for RAMboot, I've posted it on this forum (Member Success Stories).
 
  


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