| Slimline Open Firmware - SLOF |
| |
| Copyright (C) 2005, 2008 IBM Corporation |
| |
| |
| BUILD |
| =============================================================================== |
| |
| To build SLOF you need: |
| - Recent GNU tools, configured for powerpc64-linux |
| - GCC: 3.3.3 and newer are known to work |
| - Binutils: use a version as new as possible |
| - Subversion |
| |
| - set the CROSS variable |
| - something like export CROSS="powerpc64-unknown-linux-gnu-" |
| when using a cross compiler |
| or |
| - export CROSS="" |
| when using a native compiler |
| |
| - four more files to build a bootable image: |
| - libipmi.oco |
| - takeover.oco |
| - i2c_bmc.oco |
| - ipmi_oem.oco |
| these files are also provided through developerworks and have to be |
| also downloaded just like the SLOF source code |
| |
| - starting with the SLOF release JX-1.6.0-0 it is necessary to |
| download a x86 emulator which is used to execute the BIOS |
| of VGA card; to download the x86 emulator following steps are |
| required: |
| - cd other-licence/x86emu/ |
| - ./x86emu_download.sh # this downloads the x86 emulator sources |
| - cd - |
| |
| - make js2x |
| |
| INSTALL |
| =============================================================================== |
| |
| Detailed information about how to use SLOF on JS20 and JS21 can be found in |
| the document FlashingSLOF.pdf |
| |
| The JS20 and JS21 blades both have 2 "flashsides". They have a 8MB flash part |
| which is divided into a 4MB "temporary" side and a 4MB "permanent" side. |
| |
| The temporary side is the flashside used for the normal operation and the |
| permanent side is used as a backup if the temporary should ever fail. |
| |
| Therefore it is important that the permanent flash side is not changed so |
| that if ever required the original firmware can be restored. |
| |
| SLOF usually warns or in most cases does not easily allow to overwrite the |
| permanent side. |
| |
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| ! ! |
| ! WITH THE FOLLOWING STEPS YOU MIGHT DESTROY YOUR FIRMWARE ! |
| ! IMAGE AND LOOSE YOUR WARRANTY ! ! |
| ! YOU MAY NEED TO CALL SERVICE, IF THE FIRMWARE IMAGE IS ! |
| ! DESTROYED ! ! |
| ! ! |
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
| |
| UNINSTALL |
| =============================================================================== |
| |
| If you want to boot the original firmware again, you need to boot the blade |
| from the management module. If auto-boot is enabled you have to press "s" |
| to reach the firmware prompt. |
| On the SLOF command line, type: |
| |
| 0 > other-firmware |
| |
| and it should get you back to running the original firmware. To permanently |
| get it back, after booting Linux from there, type |
| |
| $ update_flash -r |
| $ halt |
| |
| You will boot on the PERM side. To boot from the TEMP side again, you need to |
| restart the Blade System MGMT Processor. |
| |
| Following steps are needed on |
| Management Module -> Blade Tasks -> Power/Restart |
| |
| Power Off Blade |
| Restart Blade System Mgmt Processor |
| Power On Blade |
