Free boots the chemist software for linux

IOSN Live CD is an bootable CD that boots into a usable and fully featured Linux Desktop. In addition to standard FOSS productivity and multimedia applications, it is bundled with a User Guide to Using the Linux Desktop in print and multimedia formats as well as several IOSN Free/Open Source Software Primers.

Note: This is a beta release.

Booting Ubuntu To RAM is an article aims to document the process of creating a customized Ubuntu that loads an image from the hard disk to RAM, then boots an entire Ubuntu session out of RAM. It is intended for intermediate to advanced Ubuntu users who are familiar with the shell, and may have limited experience customizing the livecd (LiveCDCustomization) and shell scripting. We will customize a LiveCD and copy it to the hard drive, and make a few modifications to bootup scripts so that it copies to RAM via our good friend tmpfs.
WARNING: The author asserts that this procedure works for him, but cannot guarantee that this procedure works for anyone else. Although this procedure is meant to be 100% safe, it is feasible that there may be mistakes, or a chance of misunderstanding the instructions in a manner that causes loss of data. Please make a backup and do not attempt on mission critical systems. Read through this article thoroughly, and do not attempt if you do not comprehend or feel comfortable about any of the instructions!
CAUTION: I hope this is intuitively obvious, but Ill humor you and state it bluntly: Changes you make under the live session are NOT saved and WILL BE LOST when you reboot or shut down. Dont save anything important to the "home directory" and expect it to still be around! If you want to save data permanently, mount a permanent medium (such as your hard drive), plug in a thumbdrive, or use some network functionality built into Ubuntu to save your data to a non-volatile destination.
There are many cases where one would like to boot Ubuntu to RAM:
- Performance: The desktop performance is dramatically improved. A 400MB squashed filesystem in RAM, that holds 1200MB of data, is read back on a 1.6GHz Core Duo in about 3 seconds, including decompression time.
- Power, Noise, Durability: Although modern hard disks dont use much power compared to other system components, this may still be important for some. In laptops, hard disks are often the noisiest components, so this setup can reduce system noise. With the hard disk spun down, a laptop can potentially withstand greater shocks without damage.
- Abrupt poweroff: Since the hard disk is only momentarily used in read-only mode during boot, then never touched again, there are few or no negative consequences of an abrupt poweroff. If a system is used where power is inconsistent, or the system is regularly used in a context where fast shutoffs are required, this is very handy.
- Privacy: Anything you do in this session are lost when you reboot or power off. This is great for kiosks or other systems where permanent modification are not desired. (Note that by default the livecd user has full sudo access, so potentially a malicious user can still make permanent changes by mounting the hard drive and following this HOWTO)

AFROS Live CD is a bootable CD with a small collection of GNU/Linux software, ARAnyM and the AFROS. AFROS Live CD boots and runs completely from CD, does not write anything to the harddrive and so is safe to try out. It is meant as a demo version of ARAnyM/AFROS. It is not the dreamed Installation CD of ARAnyM yet (although it could be modified to work so).

The underlying Linux kernel and related software provide the CD autoboot, automatic hardware detection, and support for many graphics cards, sound cards, SCSI and USB devices and other peripherals. ARAnyM plus AFROS provide our familiar and favourite TOS/FreeMiNT/GEM operating environment. Its all integrated seamlessly and after PowerOn boots straight to the Teradesk (GEM desktop).

AFROS Live CD is distributed in the form of a CD ISO image which is the usual way of distributing CDs electronically. The ISO image file can be burnt on a CD-R/RW and so youll get an exact copy of the AFROS Live CD I created on my machine.

AFROS Live CD configuration:

fVDI resolution and/or color depth change: open up the C:FVDI.SYS (double click it and select Edit), locate the "01r aranym.sys mode 800x600x16@72" line, comment it out and uncomment one of the other prepared lines (or just make up your own). Then reboot the AFROS.

The ARAnyM Config GUI is unfinished yet so changes to ARAnyM config must be done outside of ARAnyM in the .aranym/config file. When you quit ARAnyM you should be able to edit the file with one of the supplied GNU/Linux editors (in the future this shouldnt be necessary as I am working on the Config GUI as you read this).

DSL site (AFROS Live CD is based on the DSL) might give you some hints about preserving the changes youve made to the AFROS disk image or ARAnyM configuration (you might also want to read File Restoration -> HowTo in the X11 desktop). Note that this is untested by me and might be dangerous. Try it on your own risk only.

TCCBOOT project is a boot loader able to compile and boot a Linux kernel directly from its source code.

TCCBOOT is only 138 KB big (uncompressed code) and it can compile and run a typical Linux kernel in less than 15 seconds on a 2.4 GHz Pentium 4.

TCCBOOT is based on the TinyCC compiler, assembler and linker. TinyCC is an experiment to produce a very small and simple C compiler compatible with the GNU C compiler and binary utilities.

TCCBOOT boots the same way as a Linux kernel, so any boot loader which can run a bzImage Linux kernel image can run TCCBOOT. I only tested it with ISOLINUX, but LILO or GRUB should work too.

TCCBOOT reads C or assembly sources from a gzipped ROMFS filesystem stored in an Initial Ram Disk (initrd). It first reads the file boot/tccargs which contains the TinyCC command line (same syntax as the tcc executable). The TinyCC invocation should output one binary image kernel. This image is loaded at address 0x00100000. TCCBOOT then does a jump to the address 0x00100000 in 32 bit flat mode. This is compatible with the ABI of the vmlinux kernel image.

Compilation:

TCCBOOT was only tested with Linux 2.4.26. In order to build TCCBOOT, you must first compile a 2.4.26 kernel because for simplicity TCCBOOT uses some binary files and headers from the Linux kernel. TCCBOOT also needs the source code of TinyCC (tested with TinyCC version 0.9.21). You can modify the Makefile to give the needed paths.

Example:

An "Hello World" ROMFS partition is included (initrd.img). You can rebuild it from the example/ directory. You can test it with the QEMU PC emulator with the qemu-tccboot script.

Kernel compilation:

For your information, the patch linux-2.4.26-tcc.patch gives the necessary modifications to build a Linux kernel with TCCBOOT (NOTE: it is not suffisant to build the kernel with its own Makefiles - I never tried). The corresponding kernel configuration is in file linux-2.4.26-config. Patches are necessary for the following reasons:

- unsupported assembly directives: .rept, .endr, .subsection
- #define __ASSEMBLY__ needed in assembly sources
- static variables cannot be seen from the inline assembly code
- typing/lvalue problems with ? :
- no long long bit fields
- aligned attribute not supported for whole structs, only for fields
- obscur preprocessor bug

Some of these problems could easily be fixed, but I am too lazy now. It is sure that there are still many bugs in the kernel generated by TinyCC/TCCBOOT, but at least it can boot and launch a shell.

SLAX Boot CD is used to boot SLAX from USB devices on computers which cant boot from USB directly. SLAX Boot CD can be also used to boot SLAX from ISO file on disk.
Enhancements:
- added KDE 3.5.4 with Slackware 11 fixes for media:/ URL in konqueror
- probeusb parameter now sleeps delay_use+1 seconds to wait for USB devices
- (this usually defaults to 6 seconds)
- fixed fuse libraries, which were missing in rc1 version
- added newest NTFS-3g beta version, NTFS writing now works, I hope

Myah is an Operating System based on the Linux kernel. Myah is a "Live CD", so no installation is required. Myah Linux Operating System runs right off the CD, putting whatever system files it needs into RAM only.
You simply start up your PC with the Myah CD. Once youre done with Myah, simply restart your PC. The CD will eject automatically and all will be exactly as it was before.
Our goal is to bring you the best free Operating System and to inform PC owners they dont have to spend their money on Windows or OS X. There is something better, and its free. Whenever we improve Myah or Linux in general those updates will be free.
There are many Linux-based Live CDs our there. So weve made sure Myah is different by including the programs youre going to use on a daily basis. To Windows users the unfamiliar Linux program names can be confusing. So weve changed the menus to make sense. For instance Kopete, a Linux instant messenger service, is simply called Messenger.
Programs have been added to the task bar for quick and easy access. Also: the user isnt hassled for any information during startup. Myah boots up completely on its own. It starts in the main administrative account called Root.
The user has full rights. And since Myah runs right off the CD you cant break it.This whole website is committed to bringing people the best of Linux and its software, so we advertise many other Linux Operating Systems. As a plus for people who cant leave Windows (tm), we offer the Live CD. And its all free for everyone to use. So please: dont waste your money.
Main features:
- Its just as easy as putting the Myah CD in your computer and rebooting. Everything is automatic, detecting your hardware, even your internet connection. All this is done without making any permenet changes to your computer. At anytime just reboot the computer, and your normal system is back.
- Myah uses the KDE destop, that comes with a great set of utilities. Control Center you have the power to tune the system as you like. K3b is Myahs CD burning programs. K3b is powerful easy to use program.
- Myah lets you breeze though the Internet with Firefox. And if you have ever wanted to try creating you own Websites NVU is included. NVU makes it possible to create professional looking Webpages, without knowing html. Just point and click.
- If office software is a must, Open Office has every thing you need. While working is nice to have something to listed to. Realplayer can handle radio stations form Shoutcast, or even let you check out there latest videos online.
- Myahs messanger Kopete will let you stay connected to with anyone, no matter what service they might use. And for all those photos Gimp is a complete solution. Myah comes Jam packed with many other programs, all in a simple and easy to use menu. Just click the penguin and begin.
Enhancements:
- Myah OS 3 Tech Demo 2 is now available. This is still a development release but it should be fairly stable and have a well rounded selection of applications. It should mirror what the Xfce version of 3.0 will look like. There are still three objectives that need to be met before 3.0 stable: firstly, to get the system well tested to weed out any bugs or setting changes, secondly, to work on Myahs package management system, and finally, there is still no actual installer. Both binary packages and source packages will be made available and since the bulk of the system has been completed, development should come much faster from now on.

Parted Magic is a ~30mb LiveCD/USB with its only purpose being partitioning hard drives. Although GParted and Parted are the main programs, the CD/USB also offers programs like partimage, testdisk, fdisk, sfdisk, dd, etc...
Parted Magic is based on my work from the GParted LiveCD project and falls under the terms of the GPL.
Enhancements:
- We added dd_rhelp, sdparm, mbr, and xfburn for starters. Updated programs: linux-2.6.22, e2fsprogs-1.40.2, ntfs-3g-1.710, dd_rescue-1.13, ddrescue-1.5, leafpad-0.8.11, file-4.21, testdisk-6.7, mdadm-2.6.1, pciutils-2.2.5, syslinux-3.51, isomaster-1.0, hdparm-7.4, xfsprogs_2.8.21-1, busybox-1.5.1, and usbutils-0.72. All menus are bypassed now. After the syslinux menu, it boots to the desktop without any other interruptions. You can now create the LiveUSB from the LiveCD by using our new USB Operations program...