A bare-minimum gentoo install script

[cellularmitosis]

I recently read through https://tinkerdifferent.com/threads...ntoo-linux-on-an-ibook-g4-success-story.3339/ and watched

and noticed the install process involves spending more than a day being booted from the livecd.

I instead took the route of minimizing the time spent with the livecd, doing the bare minimum required to have a bootable, ssh-able machine.

I captured it as a script here: http://leopard.sh/linux/gentoo-ppc.sh

To use this, download and burn the latest .iso from https://distfiles.gentoo.org/releases/ppc/autobuilds/current-install-powerpc-minimal/, boot from the .iso, then run:

wget -O - http://leopard.sh/linux/gentoo-ppc.sh | bash

Note: the above command will wipe your hard drive.

This will partition and format your hard drive, unpack a stage3 tarball, copy the kernel+modules from the live cd, install a bootloader, set the root password to "root", set sshd to start on boot, then reboot.

After the machine reboots, it should get a DHCP lease and you should be able to ssh in as root and perform the rest of the install.

 

[cellularmitosis]

Including the script here just for reference:

edit: see the updated script in the post which follows this one

 

[cellularmitosis]

Note: this script will go "stale", as it looks like the gentoo team only keeps the stage3 tarballs around for about a month, and there is unfortunately no "latest" symlink for the stage3 tarball.

If a future reader runs the script and gets a 404 on https://distfiles.gentoo.org/releas...nrc/stage3-ppc-openrc-20250424T020521Z.tar.xz, just ping me and I'll update the script.

edit: hmm, actually it looks like I could have the script grab https://distfiles.gentoo.org/releas...tage3-ppc-openrc/latest-stage3-ppc-openrc.txt and parse the filename out of it...

edit2: ok, yeah, I was able to determine the filename of the latest tarball with:

# determine the latest tarball filename
stage3_tarball=$(wget -O - https://distfiles.gentoo.org/releases/ppc/autobuilds/current-stage3-ppc-openrc/latest-stage3-ppc-openrc.txt | grep '\.tar\.' | awk '{print $1}')

so now the script shouldn't go "stale".

updated script:

#!/bin/bash

# a bare-minimal installer for ppc gentoo.

# instructions:
# - download and burn the latest iso from
#   https://distfiles.gentoo.org/releases/ppc/autobuilds/current-install-powerpc-minimal/
# - boot from the iso, then run this script:
#   wget -O - http://leopard.sh/linux/gentoo-ppc.sh | bash

set -e -o pipefail
set -x

GREEN='\033[1;32m'
WHITE='\033[1;37m'
NC='\033[0m'

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting the time.${NC}\n"
set -x

if which chronyd >/dev/null 2>&1 ; then
    chronyd -q
elif which ntpd >/dev/null 2>&1 ; then
    ntpd -q -g
fi

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Partitioning the disk.${NC}\n"
set -x

mac-fdisk /dev/sda << EOF
i
y

b
2p
c
3p
3p
root
w
y
EOF
sleep 1

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Formatting the root partition.${NC}\n"
set -x

umount /dev/sda3 || true
mkfs.ext4 /dev/sda3
mkdir -p /mnt/gentoo
mount /dev/sda3 /mnt/gentoo

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Installing a stage 3 tarball.${NC}\n"
set -x

# determine the latest tarball filename
stage3_tarball=$(wget -O - https://distfiles.gentoo.org/releases/ppc/autobuilds/current-stage3-ppc-openrc/latest-stage3-ppc-openrc.txt | grep '\.tar\.' | awk '{print $1}')

cd /mnt/gentoo
url=https://distfiles.gentoo.org/releases/ppc/autobuilds/current-stage3-ppc-openrc/$stage3_tarball
wget -O - $url | unxz | tar xp --xattrs-include='*.*' --numeric-owner

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting up the boot partition.${NC}\n"
set -x

hformat -l bootstrap /dev/sda2
mkdir -p /mnt/gentoo/boot/NWBB
mount --types hfs /dev/sda2 /mnt/gentoo/boot/NWBB/
grub-install --boot-directory=/mnt/gentoo/boot --macppc-directory=/mnt/gentoo/boot/NWBB /dev/sda2
umount /mnt/gentoo/boot/NWBB/
hmount /dev/sda2
hattrib -t tbxi -c UNIX :System:Library:CoreServices:BootX
hattrib -b :System:Library:CoreServices
humount

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Copying kernel + modules from livecd.${NC}\n"
set -x

cd /mnt/cdrom/boot
cp -a ppc32 ppc32.igz System-ppc32.map grub /mnt/gentoo/boot/
mkdir -p /mnt/gentoo/lib/modules
cp -a /lib/modules/6.12.21-gentoo-ppc32-ppc /mnt/gentoo/lib/modules

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Creating a grub config.${NC}\n"
set -x

cat > /mnt/gentoo/boot/grub/grub.cfg << EOF
set default=0
set gfxpayload=keep
set timeout=3
insmod all_video

menuentry 'ppc32' --class gnu-linux --class os {
    linux /boot/ppc32 root=/dev/sda4 ro
    initrd /boot/ppc32.igz
}
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Chrooting.${NC}\n"
set -x

mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
mount --bind /run /mnt/gentoo/run
mount --make-slave /mnt/gentoo/run
chroot /mnt/gentoo /bin/bash << 'ENDCHROOT'
set -e -o pipefail
source /etc/profile
set -x

GREEN='\033[1;32m'
WHITE='\033[1;37m'
NC='\033[0m'

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting the root password to 'root'.${NC}\n"
sleep 3
set -x

passwd << EOF
root
root
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Configuring sshd.${NC}\n"
set -x

rc-update add sshd default

cat >> /etc/ssh/sshd_config << EOF
PermitRootLogin yes
EOF

ENDCHROOT

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Configuring portage.${NC}\n"
set -x

cat >> /mnt/gentoo/etc/portage/make.conf << EOF

FEATURES="buildpkg getbinpkg"
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Rebooting.${NC}\n"
set -x

cd /
reboot

 

[barracuda156]

Have you got ppc64 version of the same?

 

[Doq]

Should be simple enough to modify, replacing instances of ppc and ppc32 with ppc64. The install media includes both ppc and ppc64 kernels so that doesn't get modified. Untested (my G5 runs Adelie), but see if this works for you.

#!/bin/bash

# a bare-minimal installer for ppc64 gentoo.

# instructions:
# - download and burn the latest iso from
#   https://distfiles.gentoo.org/releases/ppc/autobuilds/current-install-powerpc-minimal/
# - boot from the iso, then run this script:
#   wget -O - https://placeholder.directory/linux/gentoo-ppc64.sh | bash

set -e -o pipefail
set -x

GREEN='\033[1;32m'
WHITE='\033[1;37m'
NC='\033[0m'

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting the time.${NC}\n"
set -x

if which chronyd >/dev/null 2>&1 ; then
    chronyd -q
elif which ntpd >/dev/null 2>&1 ; then
    ntpd -q -g
fi

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Partitioning the disk.${NC}\n"
set -x

mac-fdisk /dev/sda << EOF
i
y

b
2p
c
3p
3p
root
w
y
EOF
sleep 1

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Formatting the root partition.${NC}\n"
set -x

umount /dev/sda3 || true
mkfs.ext4 /dev/sda3
mkdir -p /mnt/gentoo
mount /dev/sda3 /mnt/gentoo

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Installing a stage 3 tarball.${NC}\n"
set -x

# determine the latest tarball filename
stage3_tarball=$(wget -O - https://distfiles.gentoo.org/releases/ppc/autobuilds/current-stage3-ppc64-openrc/latest-stage3-ppc64-openrc.txt | grep '\.tar\.' | awk '{print $1}')

cd /mnt/gentoo
url=https://distfiles.gentoo.org/releases/ppc/autobuilds/current-stage3-ppc64-openrc/$stage3_tarball
wget -O - $url | unxz | tar xp --xattrs-include='*.*' --numeric-owner

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting up the boot partition.${NC}\n"
set -x

hformat -l bootstrap /dev/sda2
mkdir -p /mnt/gentoo/boot/NWBB
mount --types hfs /dev/sda2 /mnt/gentoo/boot/NWBB/
grub-install --boot-directory=/mnt/gentoo/boot --macppc-directory=/mnt/gentoo/boot/NWBB /dev/sda2
umount /mnt/gentoo/boot/NWBB/
hmount /dev/sda2
hattrib -t tbxi -c UNIX :System:Library:CoreServices:BootX
hattrib -b :System:Library:CoreServices
humount

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Copying kernel + modules from livecd.${NC}\n"
set -x

cd /mnt/cdrom/boot
cp -a ppc64 ppc64.igz System-ppc64.map grub /mnt/gentoo/boot/
mkdir -p /mnt/gentoo/lib/modules
cp -a /lib/modules/6.12.21-gentoo-ppc64-ppc /mnt/gentoo/lib/modules

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Creating a grub config.${NC}\n"
set -x

cat > /mnt/gentoo/boot/grub/grub.cfg << EOF
set default=0
set gfxpayload=keep
set timeout=3
insmod all_video

menuentry 'ppc64' --class gnu-linux --class os {
    linux /boot/ppc64 root=/dev/sda4 ro
    initrd /boot/ppc64.igz
}
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Chrooting.${NC}\n"
set -x

mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
mount --bind /run /mnt/gentoo/run
mount --make-slave /mnt/gentoo/run
chroot /mnt/gentoo /bin/bash << 'ENDCHROOT'
set -e -o pipefail
source /etc/profile
set -x

GREEN='\033[1;32m'
WHITE='\033[1;37m'
NC='\033[0m'

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Setting the root password to 'root'.${NC}\n"
sleep 3
set -x

passwd << EOF
root
root
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Configuring sshd.${NC}\n"
set -x

rc-update add sshd default

cat >> /etc/ssh/sshd_config << EOF
PermitRootLogin yes
EOF

ENDCHROOT

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Configuring portage.${NC}\n"
set -x

cat >> /mnt/gentoo/etc/portage/make.conf << EOF

FEATURES="buildpkg getbinpkg"
EOF

{ set +x; } 2>/dev/null
echo -e "\n ${GREEN}* ${WHITE}Rebooting.${NC}\n"
set -x

cd /
reboot