3.6. Inställning av maskinvara och operativsystem före installation
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3.6. Inställning av maskinvara och operativsystem före installation

This section will walk you through pre-installation hardware setup, if any, that you will need to do prior to installing Debian. Generally, this involves checking and possibly changing BIOS/UEFI/system firmware settings for your system. The ”BIOS/UEFI” or ”system firmware” is the core software used by the hardware; it is most critically invoked during the bootstrap process (after power-up).

3.6.1. Hur man uppdaterar firmware för baremetal ppc64el

Detta är ett utdrag ur IBM PowerKVM på IBM POWER8.

Open Power Abstraction Layer (OPAL) is the system firmware in the stack of POWER processor-based server.

Det kan finnas tillfällen då användaren kan behöva uppgradera Power Systems firmware till en nyare nivå för att skaffa nya funktioner eller ytterligare stöd för enheter.

Se till att följande krav är uppfyllda:

  • Ett operativsystem som körs i systemet;

  • the .img file of the OPAL level that the user needs to update to;

  • maskinen är inte under HMC kontroll.

Power Systems has two sides of flash to boot firmware from, namely permanent and temporary. This provides a way to test firmware updates on the temporary side of the flash before committing the tested changes to the permanent side, thereby committing the new updates.

Utför följande steg för att uppdatera:

  1. Save the level of the existing firmware before really updating. In ASM, in the system menu, click Service Aids -> Service Processor Command Line, and run the following command: 

    cupdcmd -f

  2. Download the .img file of the level of firmware to be updated to a location in the host filesystem. Refer to IBM Fix Central for downloading the image file.

    Verifiera den nedladdade avbilden genom att köra följande kommando och spara utdata. 

    $update_flash -v -f <fil_namn.img>

  3. Uppdatera firmware genom att köra följande kommando. 

    $update_flash -f <fil_namn.img>

    [Notera] Notera

    • Kommandot startar om systemet och därför kommer eventuella sessioner att gå förlorade.

    • Starta inte om eller stäng av systemet förrän det är tillbaka.

  4. Verify the updated firmware level of the temporary side of the flash as in step 1.

  5. In case the update has to be reverted, the user can do so by running this command: 

        $update_flash -r

    Rejection would reject only the temporary side of the flash. Therefore, the new level should be committed to the permanent side only after thorough testing of the new firmware.

    The new updated level can be committed to the permanent side of the flash by running the following command. 

    $update_flash -c

3.6.2. Uppdatera KVM -gästfirmware (SLOF)

Slimline Open Firmware (SLOF) is an implementation of the IEEE 1275 standard. It can be used as partition firmware for pSeries machines running on QEMU or KVM.

The package qemu-slof is, in fact, a dependency of package qemu-system-ppc (which also provides the virtual package qemu-system-ppc64), and can be installed or updated via apt tool on Debian-based distros. Like so: 

# apt install qemu-slof

SLOF can also be installed into rpm-based distribution systems, given the proper repository or rpm package. Additionally, the upstream source code is available at http://github.com/leilihh/SLOF.

Thus, one can use a different SLOF file rather than the default, when running qemu-system, by adding the command line argument -bios <slof_file> when starting qemu.

3.6.3. Uppdatera PowerKVM hypervisor

3.6.3.1. Instruktioner för Netboot installation

You will need a DHCP/TFTP (BOOTP) server, as well as a web server. After downloading ibm-powerkvm-*-ppc64-service-*.iso, mount loop it and unpack it into some directory within your HTTP server www root structure (say wwwroot): 

# cd <directory-where-the-iso-is>
# mkdir ./iso
# sudo mount -o loop ibm-powerkvm-*-ppc64-service-*.iso ./iso
# cp -a ./iso/* <path-to-wwwroot>

Create the petitboot.conf file in a directory under your tftproot, say /tftproot/powerkvm, with the following contents: 

label PowerKVM Automated Install
kernel http://YOUR-SERVER-IP/SOME-PATH-TO-wwwroot/ppc/ppc64/vmlinuz
initrd http://YOUR-SERVER-IP/SOME-PATH-TO-wwwroot/ppc/ppc64/initrd.img
append root=live:http://YOUR-SERVER-IP/SOME-PATH-TO-wwwroot/LiveOS/squashfs.img repo=http://YOUR-SERVER-IP/SOME-PATH-TO-wwwroot/packages rd.dm=0 rd.md=0 console=hvc0 console=tty0

Editing your dhcpd.conf, set this directive at the beginning: 

option conf-file code 209 = text;

Add the system directive: 

host <your-system> {
    hardware ethernet <system macaddr>
    fixed-address <system ip>;
    option host-name "<system hostname>";
    option conf-file "<powerkvm/petitboot.conf>";
 }

Reboot the dhcp server.

Starta din PowerLinux maskin.

There should be the following option at petitboot (select it): 

"Power KVM Automated Install"

The installer menu should appear automatically.

3.6.3.2. Instruktioner för DVD

Boot the ISO ibm-powerkvm-*-ppc64-service-*.iso (either burn a DVD or make it virtual if using QEMU) and simply wait for the boot.

There should be the following option at petitboot (select it): 

"POWERKVM_LIVECD"

The installer menu should appear automatically.

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