Sean M. Collins 09e550c370 Convert all HTML doc to RST

The motivation for this conversion is to have DevStack's docs be
generated using a more familair workflow for OpenStack projects, using
Sphinx.

Changing from raw HTML to RST will also make it easier to contribute
more documentation, as well as making edits less of a hassle.

The majority of the work was done by using Pandoc to convert from HTML
to RST, with minor edits to the output to remove errors in Sphinx.

Change-Id: I9636017965aeade37b950ddf5bdb0c22ab9004bd

2014-10-22 12:27:00 -04:00

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DevStack

USB Boot: Undoable Stack Boot

Boot DevStack from a USB disk into a RAM disk.

Prerequisites

Hardware

This guide covers the creation of a bootable USB drive. Your computer BIOS must support booting from USB and You will want at least 3GB of RAM. You also will need a USB drive of at least 2GB.

Software

Ubuntu 11.10 (Oneiric Ocelot) is required on host to create images.

Installation bit blasting

Set Up USB Drive

Insert the USB drive into the computer. Make a note of the device name, such as sdb. Do not mount the device.
Install the boot system:
```
tools/build_usb_boot.sh /dev/sdb1
```
This calls tools/build_ramdisk.sh to create a 2GB ramdisk containing a complete development Oneiric OS plus the OpenStack code checkouts. It then writes a syslinux boot sector to the specified device and creates /syslinux.

If desired, you may now mount the device:

mount /dev/sdb1 /mnt/tmp
# foo
umount /mnt/tmp

Now return to the RAM disk Guide to kick off your DevStack experience.

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