User:NeoAmsterdam/Fedora 11 for XO-1: Install Notes
Jump to navigation
Jump to search
This brief install note combines techniques used for Installing build 8.0.2 to a bootable SD card and Fedora 11 for XO-1. Please read both documents thoroughly before proceeding.
Read Me First
Warnings
- This procedure will erase and overwrite everything stored on the XO and the SD card. Back up your data!
- Do not execute this procedure on battery power. Any power interruption could lead render your XO irrecoverable.
- This procedure requires the use of fdisk for partitioning. Do not attempt this procedure if you are a Linux novice.
- Execute this procedure at your own risk. I will provide clarifications and explanations if requested, but I will not provide tech-support-style help.
- Fedora 11 for XO-1 is (at time of writing) still in development phase, and is not considered ready for full deployment.
Caveats
- The SD card will be formatted as an ext3 filesystem. This is not an ideal filesystem for SD cards.
- This document assumes you already have a developer key.
- This document assumes that fdisk automatically recognizes the starting and ending cylinders for the SD card.
- The XO may not boot automatically from the SD card if devices are plugged in to the USB slots (I have no idea why this may be).
- Expect bugs - lots of them. If you're not OK with that, don't proceed.
Notes
- Some instructions on this page are verbose. Even though it takes longer, it'll allow you to keep tabs on the XO's progress.
- Children should get permission from a parent, guardian, teacher, and/or Linux guru before attempting this procedure.
Adult supervision is not required, but is highly recommended.
Requirements
- An XO
Obviously. - A USB drive
≥1 GB - An SD card
≥1 GB; biggest is "best-est" - A developer's key
The instructions for obtaining a developer's key can be found here. - Internet connectivity
You will need to download some files.
Optional
- You will probably want to use a second computer to download two required files and to back up the XO's data.
The Procedure
- Remove the SD card from the slot.
- Follow the directions for installing F11 for XO-1, as described in the section entitled Installation Instructions.
- Once restarted, drop into the the console.
- Stop Sugar and the automounting daemon by lowering the runlevel.
/sbin/init 3 - Insert the SD card.
- Determine mounted devices
mount will list all the mounted devices.
If you see /dev/mmcblk0p1 mentioned, run umount /dev/mmcblk0p1.
If the XO responds with the device is busy error message, try cd / ; umount /dev/mmcblk0p1.
If the device still can't be unmounted, stop what you're doing - you cannot proceed any further. - Quick-format the SD card
dd if=/dev/zero of=/dev/mmcblk0 bs=512 count=8 - Paritition the SD card.
fdisk /dev/mmcblk0
You will now be running fdisk interactively. Create a new primary partition that runs the length of the drive, flag it as bootable, make sure it's type 83 (Linux), and write the changes. - Format the SD card. Note: The volume label must be OLPCRoot (unless you're prepared to tinker with /ofw/olpc.fth)
mkfs.ext3 -L "OLPCRoot" /dev/mmcblk0p1 - Mount the SD card.
mkdir /mnt/SD ; mount -t ext3 /dev/mmcblk0p1 /mnt/SD - Copy the developer key from the USB drive to the SD card.
cp -rv /mnt/USB/security /mnt/SD - Copy the OS from the NAND to the SD card.
cp -prv /versions/pristine/11/* /mnt/SD - Wait.
- Create the olpc user's home directory.
mkdir -pv /mnt/SD/home/olpc ; chown -rv olpc:olpc /mnt/SD/home/olpc
Note: this may not work the first time around. Be ready to recreate /home/{olpc,root} with their respective permissions and owners. - Unmount the SD card.
unmount /mnt/SD - Remove the temporary directory.
rmdir -v /mnt/SD - Restart.
shutdown -r now
You should now be booting off of the SD card.