| Line 38: | Line 38: | ||
=== Creating a Bootable Card === | === Creating a Bootable Card === | ||
| - | The card I created is based off of one of the Clockwork Recovery images, in particular a 4GB image reworked to | + | The card I created is based off of one of the Clockwork Recovery images, in particular a 4GB image reworked to boot MeeGo from the SD Card. |
The simplest format is as follows, created using parted: | The simplest format is as follows, created using parted: | ||
| Line 44: | Line 44: | ||
<code> | <code> | ||
Number Start End Size Type File system Flags | Number Start End Size Type File system Flags | ||
| - | |||
1 32.3kB 74.0MB 74.0MB primary fat16 boot, lba | 1 32.3kB 74.0MB 74.0MB primary fat16 boot, lba | ||
2 74.4MB 331MB 257MB primary ext2 | 2 74.4MB 331MB 257MB primary ext2 | ||
3 331MB 4428MB 4097MB primary ext2 | 3 331MB 4428MB 4097MB primary ext2 | ||
</code> | </code> | ||
| + | |||
| + | ==== Partition 1 ==== | ||
| + | mlo -- Not sure, haven't touched it | ||
| + | u-boot.bin -- u-Boot binary, rebuilt to present a new command line to the kernel on startup | ||
| + | uImage -- u-Boot prepared kernel image | ||
| + | uRamdisk -- Rebuilt image to disable the internal init | ||
| + | |||
| + | ==== Partition 2 ==== | ||
| + | Empty, probably not necessary | ||
| + | |||
| + | ==== Partition 3 ==== | ||
| + | MeeGo root filesystem | ||
| + | |||
| + | === Building the Kernel === | ||
| + | |||
| + | The [http://nookdevs.com/NookColor:_Build_the_Original_Kernel Nook Devs] instructions will suffice for building a proper uImage. I will post the source of my u-Boot shortly. | ||
The Nook Color is an OMAP3621 based 7" tablet produced by Barnes and Noble as an lcd-based e-Reader. At the same time, it serves as quite a handy target for MeeGo due to the similar SoC.
Nook Color Official Site NookDevs Nook Color Portal, good source of information
Contents |
Hardware believed to be present, but not active
B&N have posted the sources for their kernel, bootloader, and xloader, on their legal page, look for Attachments 1 and 2. Attachment 1 is the older 2.6.29 kernel, while Attachment 2 is the newer 2.6.32 kernel.
A project on Gitorious hosting these kernel sources (but not yet u-boot or xloader) is available: https://gitorious.org/meego-nook
Currently there is an official 2.6.32 kernel, along with a community attempted port to 2.6.35, as well as my port of those patches forward to 2.6.38, in an attempt to meet the MeeGo baseline of 2.6.37.
At this point 2.6.38 with drivers and board support files ported forward compiles silently, but does not activate the screen thus giving no useful output. With 2.6.32 and 2.6.29 it is possible to boot up to the login prompt (Xorg must be disabled, or the device will not give any indication of having booted.)
The Nook Color has a particularly well done boot sequence, in that it will default to boot from the SD card slot if plugged into a PC and powered on with a bootable card inserted.
The card I created is based off of one of the Clockwork Recovery images, in particular a 4GB image reworked to boot MeeGo from the SD Card.
The simplest format is as follows, created using parted:
Number Start End Size Type File system Flags
1 32.3kB 74.0MB 74.0MB primary fat16 boot, lba 2 74.4MB 331MB 257MB primary ext2 3 331MB 4428MB 4097MB primary ext2
mlo -- Not sure, haven't touched it u-boot.bin -- u-Boot binary, rebuilt to present a new command line to the kernel on startup uImage -- u-Boot prepared kernel image uRamdisk -- Rebuilt image to disable the internal init
Empty, probably not necessary
MeeGo root filesystem
The Nook Devs instructions will suffice for building a proper uImage. I will post the source of my u-Boot shortly.