Refactored syntax highlighting shortcodes into markdown
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71 changed files with 297 additions and 297 deletions
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@ -16,10 +16,10 @@ You can get a bootable iso or liveusb from https://www.gentoo.org/downloads/. I
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Once you boot on the installation media, you can start sshd and set a temporary password and proceed with the installation more confortably from another machine :
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{{< highlight sh >}}
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```sh
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/etc/init.d/sshd start
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passwd
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{{< /highlight >}}
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```
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Don't forget to either run `dhcpcd` or manually set an ip and gateway to the machine.
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@ -27,7 +27,7 @@ Don't forget to either run `dhcpcd` or manually set an ip and gateway to the mac
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There are several options depending on wether you need soft raid, full disk encryption or a simple root device with no additional complications. It will also differ if you are using a virtual machine or a physical one.
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{{< highlight sh >}}
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```sh
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tmux
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blkdiscard /dev/nvme0n1
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sgdisk -n1:0:+2M -t1:EF02 /dev/nvme0n1
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@ -37,7 +37,7 @@ mkfs.fat -F 32 -n efi-boot /dev/nvme0n1p2
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mkfs.xfs /dev/nvme0n1p3
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mount /dev/sda3 /mnt/gentoo
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cd /mnt/gentoo
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{{< /highlight >}}
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```
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Make sure you do not repeat the mistake I too often make by mounting something to /mnt while using the liveusb/livecd. You will lose your shell if you do this and will need to reboot!
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@ -46,109 +46,109 @@ Make sure you do not repeat the mistake I too often make by mounting something t
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Get the stage 3 installation file from https://www.gentoo.org/downloads/. I personnaly use the non-multilib one from the advanced choices, since I am no longer using and 32bits software except steam, and I use steam from a multilib chroot.
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Put the archive on the server in /mnt/gentoo (you can simply wget it from there), then extract it :
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{{< highlight sh >}}
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```sh
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tar xpf stage3-*.tar.xz --xattrs-include='*.*' --numeric-owner
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mount /dev/nvme0n1p2 boot
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mount -R /proc proc
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mount -R /sys sys
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mount -R /dev dev
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chroot .
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{{< /highlight >}}
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```
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## Initial configuration
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We prepare the local language of the system :
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{{< highlight sh >}}
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```sh
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echo 'LANG="en_US.utf8"' > /etc/env.d/02locale
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echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen
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locale-gen
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env-update && source /etc/profile
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echo 'nameserver 1.1.1.1' > /etc/resolv.conf
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{{< /highlight >}}
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```
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We set a loop device to hold the portage tree. It will be formatted with optimisation for the many small files that compose it :
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{{< highlight sh >}}
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```sh
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mkdir -p /srv/gentoo-distfiles
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truncate -s 10G /portage.img
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mke2fs -b 1024 -i 2048 -m 0 -O "dir_index" -F /portage.img
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tune2fs -c 0 -i 0 /portage.img
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mkdir /usr/portage
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mount -o loop,noatime,nodev /portage.img /usr/portage/
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{{< /highlight >}}
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```
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We set default compilation options and flags. If you are not me and cannot rsync this location, you can browse it from https://packages.adyxax.org/x86-64/etc/portage/ :
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{{< highlight sh >}}
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```sh
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rsync -a --delete packages.adyxax.org:/srv/gentoo-builder/x86-64/etc/portage/ /etc/portage/
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sed -i /etc/portage/make.conf -e s/buildpkg/getbinpkg/
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echo 'PORTAGE_BINHOST="https://packages.adyxax.org/x86-64/packages/"' >> /etc/portage/make.conf
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{{< /highlight >}}
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```
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We get the portage tree and sync the timezone
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{{< highlight sh >}}
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```sh
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emerge --sync
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{{< /highlight >}}
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```
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## Set hostname and timezone
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{{< highlight sh >}}
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```sh
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export HOSTNAME=XXXXX
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sed -i /etc/conf.d/hostname -e /hostname=/s/=.*/=\"${HOSTNAME}\"/
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echo "Europe/Paris" > /etc/timezone
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emerge --config sys-libs/timezone-data
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{{< /highlight >}}
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```
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## Check cpu flags and compatibility
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TODO
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{{< highlight sh >}}
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```sh
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emerge cpuid2cpuflags -1q
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cpuid2cpuflags
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gcc -### -march=native /usr/include/stdlib.h
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{{< /highlight >}}
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```
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## Rebuild the system
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{{< highlight sh >}}
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```sh
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emerge --quiet -e @world
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emerge --quiet dosfstools app-admin/logrotate app-admin/syslog-ng app-portage/gentoolkit \
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dev-vcs/git bird openvpn htop net-analyzer/tcpdump net-misc/bridge-utils \
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sys-apps/i2c-tools sys-apps/pciutils sys-apps/usbutils sys-boot/grub sys-fs/ncdu \
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sys-process/lsof net-vpn/wireguard-tools
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emerge --unmerge nano -q
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{{< /highlight >}}
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```
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## Grab a working kernel
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Next we need to Grab a working kernel from our build server along with its modules. If you don't have one already, you have some work to do!
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Check the necessary hardware support with :
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{{< highlight sh >}}
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```sh
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i2cdetect -l
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lspci -nnk
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lsusb
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{{< /highlight >}}
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```
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TODO specific page with details on how to build required modules like the nas for example.
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{{< highlight sh >}}
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```sh
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emerge gentoo-sources genkernel -q
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...
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{{< /highlight >}}
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```
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## Final configuration steps
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### fstab
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{{< highlight sh >}}
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```sh
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# /etc/fstab: static file system information.
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#
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#<fs> <mountpoint> <type> <opts> <dump/pass>
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/dev/vda3 / ext4 noatime,discard 0 1
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/dev/vda2 /boot vfat noatime 1 2
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/portage.img /usr/portage ext2 noatime,nodev,loop 0 0
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{{< /highlight >}}
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```
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### networking
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{{< highlight sh >}}
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```sh
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echo 'hostname="phoenix"' > /etc/conf.d/hostname
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echo 'dns_domain_lo="adyxax.org"
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config_eth0="192.168.1.3 netmask 255.255.255.0"
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@ -156,7 +156,7 @@ routes_eth0="default via 192.168.1.1"' > /etc/conf.d/net
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cd /etc/init.d
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ln -s net.lo net.eth0
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rc-update add net.eth0 boot
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{{< /highlight >}}
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```
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### Grub
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@ -170,28 +170,28 @@ grub-mkconfig -o /boot/grub/grub.cfg
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### /etc/hosts
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{{< highlight sh >}}
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```sh
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scp root@collab-jde.nexen.net:/etc/hosts /etc/
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{{< /highlight >}}
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```
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### root account access
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{{< highlight sh >}}
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```sh
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mkdir -p /root/.ssh
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echo ' ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILOJV391WFRYgCVA2plFB8W8sF9LfbzXZOrxqaOrrwco hurricane' > /root/.ssh/authorized_keys
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passwd
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{{< /highlight >}}
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```
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### Add necessary daemons on boot
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{{< highlight sh >}}
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```sh
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rc-update add syslog-ng default
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rc-update add cronie default
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rc-update add sshd default
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{{< /highlight >}}
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```
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## TODO
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{{< highlight sh >}}
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```sh
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net-firewall/shorewall
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...
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rc-update add shorewall default
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@ -216,7 +216,7 @@ rc-update add docker default
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app-emulation/lxd
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rc-update add lxd default
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{{< /highlight >}}
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```
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## References
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@ -9,18 +9,18 @@ tags:
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## Introduction
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Now that I am mostly running OpenBSD servers I just use genkernel to build my custom configuration on each node with :
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{{< highlight sh >}}
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```sh
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eselect kernel list
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eselect kernel set 1
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genkernel all --kernel-config=/proc/config.gz --menuconfig
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nvim --diff /proc/config.gz /usr/src/linux/.config
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{{< / highlight >}}
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```
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Bellow you will find how I did things previously when centralising the build of all kernels on a collab-jde machine, and distributing them all afterwards. Local nodes would only rebuild local modules and get on with their lives.
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## Building on collab-jde
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{{< highlight sh >}}
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```sh
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PREV_VERSION=4.14.78-gentoo
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eselect kernel list
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eselect kernel set 1
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@ -34,11 +34,11 @@ for ARCHI in `ls /srv/gentoo-builder/kernels/`; do
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INSTALL_MOD_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make modules_install
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INSTALL_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make install
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done
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{{< / highlight >}}
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```
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## Deploying on each node :
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{{< highlight sh >}}
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```sh
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export VERSION=5.4.28-gentoo-x86_64
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wget http://packages.adyxax.org/kernels/x86_64/System.map-${VERSION} -O /boot/System.map-${VERSION}
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wget http://packages.adyxax.org/kernels/x86_64/config-${VERSION} -O /boot/config-${VERSION}
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@ -53,4 +53,4 @@ make modules_prepare
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emerge @module-rebuild
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genkernel --install initramfs --ssh-host-keys=create-from-host
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grub-mkconfig -o /boot/grub/grub.cfg
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{{< / highlight >}}
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```
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@ -12,18 +12,18 @@ I have used LXD for many years successfully, I was never satisfied with the dock
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## Installation
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{{< highlight sh >}}
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```sh
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touch /etc{/subuid,/subgid}
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usermod --add-subuids 1000000-1065535 root
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usermod --add-subgids 1000000-1065535 root
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emerge -q app-emulation/lxd
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/etc/init.d/lxd start
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rc-update add lxd default
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{{< /highlight >}}
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```
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## Initial configuration
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{{< highlight sh >}}
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```sh
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myth /etc/init.d # lxd init
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Would you like to use LXD clustering? (yes/no) [default=no]:
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Do you want to configure a new storage pool? (yes/no) [default=yes]:
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@ -43,4 +43,4 @@ Trust password for new clients:
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Again:
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Would you like stale cached images to be updated automatically? (yes/no) [default=yes]
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Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:
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{{< /highlight >}}
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```
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@ -17,7 +17,7 @@ achieve that with containers but didn't quite made it work as well as this chroo
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Note that there is no way to provide a "most recent stage 3" installation link. You will have to browse http://distfiles.gentoo.org/releases/amd64/autobuilds/current-stage3-amd64/
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and adjust the download url manually bellow :
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{{< highlight sh >}}
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```sh
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mkdir /usr/local/steam
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cd /usr/local/steam
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wget http://distfiles.gentoo.org/releases/amd64/autobuilds/current-stage3-amd64/stage3-amd64-20190122T214501Z.tar.xz
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@ -74,13 +74,13 @@ wget -P /etc/portage/repos.conf/ https://raw.githubusercontent.com/anyc/steam-ov
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emaint sync --repo steam-overlay
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emerge games-util/steam-launcher -q
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useradd -m -G audio,video steam
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{{< /highlight >}}
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```
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## Launch script
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Note that we use `su` and not `su -` since we need to preserve the environment. If you don't you won't get any sound in game. The pulseaudio socket is shared through the mount of
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/run inside the chroot :
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{{< highlight sh >}}
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```sh
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su
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cd /usr/local/steam
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mount -R /dev dev
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@ -93,4 +93,4 @@ chroot .
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env-update && source /etc/profile
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su steam
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steam
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{{< /highlight >}}
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```
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@ -9,24 +9,24 @@ tags:
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## Introduction
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Here is my go to set of commands when I upgrade a gentoo box :
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{{< highlight sh >}}
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```sh
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emerge-webrsync
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eselect news read
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{{< /highlight >}}
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```
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The news have to be reviewed carefully and if I cannot act on it immediately I copy paste the relevant bits to my todolist.
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## The upgrade process
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I run the upgrade process in steps, the first one asking you to validate the upgrade path. You will also be prompted to validate before cleaning :
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{{< highlight sh >}}
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```sh
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emerge -qAavutDN world --verbose-conflicts --keep-going --with-bdeps=y && emerge --depclean -a && revdep-rebuild -i -- -q --keep-going; eclean --deep distfiles && eclean --deep packages && date
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{{< /highlight >}}
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```
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After all this completes it is time to evaluate configuration changes :
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{{< highlight sh >}}
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```sh
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etc-update
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{{< /highlight >}}
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```
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If a new kernel has been emerged, have a look at [the specific process for that]({{< ref "kernel_upgrades" >}}).
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