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Re: [PATCH v4] target/ppc: fix Hash64 MMU update of PTE bit R

From: Leandro Lupori
Subject: Re: [PATCH v4] target/ppc: fix Hash64 MMU update of PTE bit R
Date: Tue, 30 Nov 2021 17:00:32 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0

On 30/11/2021 05:44, Cédric Le Goater wrote:
It would be interesting to boot directly the PowerNV machine from a
FreeBSB kernel and a minimum inirtd without using the skiroot images
and an iso. Are images available ?

AFAIK there are no minimum initrd images available. The closest thing would be the "bootonly" ISOs that can be found in the links below:





But to avoid using skiroot, you would need to manually extract the kernel from the ISO and also specify the rootfs, using something like: "-append cd9660:cd0". If you don't want to emulate a disk or cd, the ISO can be passed to -initrd and "-append cd9660:md0" may be used to tell FreeBSD where to find the root partition (it loads it as a memory disk).

There are also qcow2 snapshots available:



But you'll also need to extract the kernel from the image or from kernel.txz to boot them. As these images target pseries and lack a FAT32 partition, Petitboot won't be able to boot them.

Alfredo (cc'ed) was trying to make them Petitboot compatible.

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