Free boot to the head software for linux

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)

Borg Live is a bootable CD-Rom containing a GNU/Linux operative system, that permits you to boot directly from the CD, without the need of an hard disk installation .
The system is based on Slax , the Slackware Linux Live CD.
Main features:
- Kernel 2.4.24 with Openmosix clustering support
- X Graphical system
- XFCE Window Manager
To use the Live CD , you need:
A Computer PC-Compatible ( not a MAC one )
A Bios that permit to boot from the CD drive
A Pentium III ( or AMD equivalent ) or better CPU
64 Mb RAM
A CD-Rom or DVD unit
A Mouse ( better if PS2 or USB )
# Instructions for the first boot
1) enable BIOS to boot from Cd-rom
2) Insert the Cd
3) Take a look at the boot options , just when the image appears , pressing F1
4) ( Write down your desired options if any , then ) Press Enter
5) Login as root , no password

boot-dvd project contains a couple of Perl-scripts that can be used to create a custom DVD-ISO image (to be burned), that contains user selected Linux boot/live-CD images (only ISOLINUX boot loader supported) in a handy GRUB menu.
Enhancements:
- Many updates and bugfixes were made.

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

The Xbox Linux Project aims to privide a version of GNU/Linux for the Xbox, so that it can be used as an ordinary computer.
Linux should make use of all Xbox hardware and allow to install and run software from standard i386 Linux distributions.
An Xbox with Linux can be a full desktop computer with mouse and keyboard, a web/email box connected to TV, a server or router or a node in a cluster.
You can either dual-boot or use Linux only; in the latter case, you can replace both IDE devices. And yes, you can connect the Xbox to a VGA monitor.
Main features:
- You can run Linux on your Xbox!
- You can do it without a modchip!
- You can do it without opening your Xbox!

MIME::Head is a MIME message header (a subclass of Mail::Header).

SYNOPSIS

Before reading further, you should see MIME::Tools to make sure that you understand where this module fits into the grand scheme of things. Go on, do it now. Ill wait.

Ready? Ok...

Construction

### Create a new, empty header, and populate it manually:
$head = MIME::Head->new;
$head->replace(content-type, text/plain; charset=US-ASCII);
$head->replace(content-length, $len);

### Parse a new header from a filehandle:
$head = MIME::Head->read(*STDIN);

### Parse a new header from a file, or a readable pipe:
$testhead = MIME::Head->from_file("/tmp/test.hdr");
$a_b_head = MIME::Head->from_file("cat a.hdr b.hdr |");

Output

### Output to filehandle:
$head->print(*STDOUT);

### Output as string:
print STDOUT $head->as_string;
print STDOUT $head->stringify;

Getting field contents

### Is this a reply?
$is_reply = 1 if ($head->get(Subject) =~ /^Re: /);

### Get receipt information:
print "Last received from: ", $head->get(Received, 0), "n";
@all_received = $head->get(Received);

### Print the subject, or the empty string if none:
print "Subject: ", $head->get(Subject,0), "n";

### Too many hops? Count em and see!
if ($head->count(Received) > 5) { ...

### Test whether a given field exists
warn "missing subject!" if (! $head->count(subject));
Setting field contents
### Declare this to be an HTML header:
$head->replace(Content-type, text/html);
Manipulating field contents
### Get rid of internal newlines in fields:
$head->unfold;

### Decode any Q- or B-encoded-text in fields (DEPRECATED):
$head->decode;

Getting high-level MIME information

### Get/set a given MIME attribute:
unless ($charset = $head->mime_attr(content-type.charset)) {
$head->mime_attr("content-type.charset" => "US-ASCII");
}

### The content type (e.g., "text/html"):
$mime_type = $head->mime_type;

### The content transfer encoding (e.g., "quoted-printable"):
$mime_encoding = $head->mime_encoding;

### The recommended name when extracted:
$file_name = $head->recommended_filename;

### The boundary text, for multipart messages:
$boundary = $head->multipart_boundary;