OLPC Firmware q2e20
From OLPC
Contents |
[edit] OLPC Firmware Release q2e20 - 2008-10-24
This firmware is a refresh for the prebuild of systems with the new keyboard controller chip. Q2e19 didn't actually ship on those systems because it had a bug. Instead, I made a quick-turn "special" Q2E19f which shipped on them. This Q2E20 is functionally equivalent to Q2E19f.
If you want to try the new "debxo" package, this is the firmware for you.
Download: q2e20.rom
[edit] Changes since OLPC Firmware q2e19
- trac 8818 - fixed spurious memtest error reports by turning off USB when running memtest.
- trac 8811 - fix booting Linux with no ramdisk.
- trac 8785 - fixed NAND partition creation bug
- fixed ftrace regression
- trac 8451 - Handle "test /mouse" issues raised by comment 9 of that ticket.
- trac 8451 - further improvements in mouse/trackpad robustness.
[edit] OpenFirmware is svn 987
[edit] EC code is pq2e18c
(No change from previous)
[edit] WLAN firmware is 5.110.22.p20
[edit] Which Firmware Do You Have?
If your machine is not in secure mode, the firmware version is displayed in the startup banner, as in:
OLPC B4, 256 MiB memory installed, S/N SHF7250024D
OpenFirmware CL1 Q2D07 Q2D
^^^^^
If your machine is in secure mode, you can go to the Terminal activity and type
cat /ofw/openprom/model
If your machine is in secure mode but the OS will not start, just go ahead and try to upgrade the firmware anyway. The procedure is safe and will not do anything if you already have up-to-date firmware.
Beginning with firmware Q2D08, you can see the firmware version in secure mode by powering up with the "check" game button held down.
Beginning with OS Build 690 (or less?) you can also go to the main screen, click on the little man and select "about this XO"
[edit] Installation
When installing new firmware, you need a well-charged battery and the AC adapter must be plugged in. The firmware update code will not proceed otherwise.
[edit] Unsecured Machines
(Please note that most developer machines are "unsecured". To unsecure your machine, follow the instructions at Activation and Developer Keys.)
First download the firmware from http://dev.laptop.org/pub/firmware/q2e20/q2e20.rom.
You can download on another computer with the above link. To download on the XO (into its NAND flash file system), start the Terminal Activity and as root type something like
cd /versions/boot/current/boot/ wget http://dev.laptop.org/pub/firmware/q2e20/q2e20.rom
If you want to use a USB or SD drive to store the firmware before installing, replace the first line above with:
cd /media/disk mkdir boot cd boot
Copy the q2e20.rom file you downloaded to the XO NAND FLASH filesystem as /versions/boot/current/boot/q2e20.rom, or to a USB flash drive as /boot/q2e20.rom.
Power cycle the system and press the Escape (top left key) during boot to get to the 'ok' prompt. Then type one of the following commands
- if the file is on the NAND FLASH filesystem
ok flash n:\boot\q2e20.rom
- if the file is on the NAND FLASH in the alternate boot filesystem
ok flash n:\boot-alt\q2e20.rom
- if the file is on a USB flash drive
ok flash u:\boot\q2e20.rom
If you are copying the firmware from a Windows machine,
- 1.Make sure the USB flash drive is formatted for FAT and not FAT32, and
- 2.Don't use a \boot directory. Just u:\q2e20.rom
- if the file is on an SD card
ok flash sd:\boot\q2e20.rom
(Use the dir command if you need help finding the file.)
This will only work if the XO has a well-charged battery AND is plugged in. "AC not present" means you need to plug it in.
[edit] Secured Machines
Pre-mass-production machines were almost all unsecured. Secure-mode machines can only use flash firmware that has been signed. All mass-production machines had the latest signed firmware at the time of manufacture installed.
Upgrading firmware describes how to upgrade to a newer official (signed) firmware release.
[edit] See also
- Cheat codes for information about how game buttons control startup options.
