Rewrote the whole website to get rid on a heavy theme
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122 changed files with 346 additions and 2558 deletions
8
content/docs/gentoo/_index.md
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8
content/docs/gentoo/_index.md
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@ -0,0 +1,8 @@
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---
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title: "Gentoo"
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linkTitle: "Gentoo"
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weight: 1
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description: >
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Gentoo related articles
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---
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231
content/docs/gentoo/installation.md
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231
content/docs/gentoo/installation.md
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@ -0,0 +1,231 @@
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---
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title: "Installation"
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linkTitle: "installation"
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weight: 1
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description: >
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Installation of a gentoo system
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---
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## Installation media
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You can get a bootable iso or liveusb from https://www.gentoo.org/downloads/. I recommend the minimal one. To create a bootable usb drive juste use `dd` to copy the image on it. Then boot on this brand new installation media.
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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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/etc/init.d/sshd start
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passwd
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{{< /highlight >}}
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## Partitionning
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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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fdisk /dev/sda
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g
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n
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1
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2048
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+2M
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t
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1
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4
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n
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2
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6144
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+512M
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t
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2
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1
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n
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3
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1054720
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w
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mkfs.ext4 /dev/sda3
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mkfs.fat -F 32 -n efi-boot /dev/sda2
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mount /dev/sda3 /mnt/gentoo
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{{< /highlight >}}
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## Get the stage3 and chroot into it
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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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tar xpf stage3-*.tar.xz --xattrs-include='*.*' --numeric-owner
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mount /dev/sda2 boot
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mount -t proc none proc
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mount -t sysfs none sys
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mount -o rbind /dev dev
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cp /etc/resolv.conf etc/
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chroot .
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{{< /highlight >}}
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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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env-update && source /etc/profile
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echo 'LANG="en_US.utf8"' > /etc/env.d/02locale
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sed '/#en_US.UTF-8/s/#//' -i /etc/locale.gen
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locale-gen
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source /etc/profile
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{{< /highlight >}}
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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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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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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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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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We get the portage tree and sync the timezone
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{{< highlight sh >}}
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emerge --sync
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{{< /highlight >}}
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## Set hostname and timezone
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{{< highlight 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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## Check cpu flags and compatibility
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TODO
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{{< highlight 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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## Rebuild the system
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{{< highlight 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 dev-vcs/git bird openvpn htop net-analyzer/tcpdump net-misc/bridge-utils sys-apps/i2c-tools sys-apps/pciutils sys-apps/usbutils sys-boot/grub sys-fs/ncdu sys-process/lsof
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{{< /highlight >}}
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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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i2cdetect -l
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lspci -nnk
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lsusb
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{{< /highlight >}}
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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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emerge gentoo-sources genkernel -q
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...
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{{< /highlight >}}
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## Final configuration steps
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### fstab
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{{< highlight 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 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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### networking
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{{< highlight 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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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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### Grub
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TODO especially the conf in /etc/default/grub when using an encrypted /
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{{< highlight sh >}}
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{{< /highlight >}}
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### /etc/hosts
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{{< highlight sh >}}
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scp root@collab-jde.nexen.net:/etc/hosts /etc/
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{{< /highlight >}}
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### root account access
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{{< highlight sh >}}
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mkdir -p /root/.ssh
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echo 'ssh-rsa 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 adyxax
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ssh-rsa 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 hurricane' > /root/.ssh/authorized_keys
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passwd
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{{< /highlight >}}
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### Add necessary daemons on boot
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{{< highlight 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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## TODO
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{{< highlight 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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sed '/PRODUCTS/s/=.*/="shorewall"/' -i /etc/conf.d/shorewall-init
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rc-update add shorewall-init boot
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net-analyzer/fail2ban
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echo '[sshd]
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enabled = true
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filter = sshd
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ignoreip = 127.0.0.1/8 10.1.0.0/24 37.187.103.36 137.74.173.247 90.85.207.113
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bantime = 3600
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banaction = shorewall
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logpath = /var/log/messages
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maxretry = 3' > /etc/fail2ban/jail.d/sshd.conf
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rc-update add fail2ban default
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app-emulation/docker
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/etc/docker/daemon.json
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{ "iptables": false }
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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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## References
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- http://blog.siphos.be/2013/04/gentoo-protip-using-buildpkgonly/
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- https://wiki.gentoo.org/wiki/Genkernel
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- https://wiki.gentoo.org/wiki/Kernel/Configuration
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- https://wiki.gentoo.org/wiki/Kernel
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- https://forums.gentoo.org/viewtopic-t-1076024-start-0.html
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- https://wiki.gentoo.org/wiki/Binary_package_guide#Setting_up_a_binary_package_host
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45
content/docs/gentoo/kernel_upgrades.md
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45
content/docs/gentoo/kernel_upgrades.md
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---
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title: "Gentoo Kernel Upgrades"
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linkTitle: "Kernel Upgrades"
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weight: 1
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description: >
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Gentoo kernel upgrades on adyxax.org
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---
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# Gentoo kernel upgrades
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## Building on collab-jde
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{{< highlight 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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cd /usr/src/linux
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for ARCHI in `ls /srv/gentoo-builder/kernels/`; do
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make mrproper
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cp /srv/gentoo-builder/kernels/${ARCHI}/config-${PREV_VERSION} .config
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echo "~~~~~~~~~~ $ARCHI ~~~~~~~~~~"
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make oldconfig
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make -j5
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INSTALL_MOD_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make modules_install
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INSTALL_PATH=/srv/gentoo-builder/kernels/${ARCHI}/ make install
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done
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{{< / highlight >}}
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## Deploying on each node :
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{{< highlight sh >}}
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export VERSION=5.4.28-gentoo-x86_64
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wget http://packages.adyxax.org/kernels/x86_64/System.map-${VERSION} -O /boot/System.map-${VERSION}
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wget http://packages.adyxax.org/kernels/x86_64/config-${VERSION} -O /boot/config-${VERSION}
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wget http://packages.adyxax.org/kernels/x86_64/vmlinuz-${VERSION} -O /boot/vmlinuz-${VERSION}
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rsync -a --delete collab-jde.nexen.net:/srv/gentoo-builder/kernels/x86_64/lib/modules/${VERSION} /lib/modules/
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eselect kernel set 1
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cd /usr/src/linux
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cp /boot/config-${VERSION} .config
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cp /boot/System.map-${VERSION} System.map
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(cd usr ; make gen_init_cpio)
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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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38
content/docs/gentoo/lxd.md
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38
content/docs/gentoo/lxd.md
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---
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title: "LXD"
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linkTitle: "LXD"
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weight: 1
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description: >
|
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How to setup a LXD server
|
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---
|
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|
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{{< highlight 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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{{< highlight 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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Name of the new storage pool [default=default]:
|
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Would you like to connect to a MAAS server? (yes/no) [default=no]:
|
||||
Would you like to create a new local network bridge? (yes/no) [default=yes]: no
|
||||
Would you like to configure LXD to use an existing bridge or host interface? (yes/no) [default=no]: yes
|
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Name of the existing bridge or host interface: lxdbr0
|
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Would you like LXD to be available over the network? (yes/no) [default=no]: yes
|
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Address to bind LXD to (not including port) [default=all]: 10.1.0.247
|
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Port to bind LXD to [default=8443]:
|
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Trust password for new clients:
|
||||
Again:
|
||||
Invalid input, try again.
|
||||
|
||||
Trust password for new clients:
|
||||
Again:
|
||||
Would you like stale cached images to be updated automatically? (yes/no) [default=yes]
|
||||
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:
|
||||
{{< /highlight >}}
|
||||
65
content/docs/gentoo/steam.md
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65
content/docs/gentoo/steam.md
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|
|
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|
|||
---
|
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title: "Steam"
|
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linkTitle: "Steam"
|
||||
weight: 1
|
||||
description: >
|
||||
How to make steam work seamlessly on gentoo with a chroot
|
||||
---
|
||||
|
||||
I am not using a multilib profile on gentoo (I use amd64 only everywhere), so when the time came to install steam I had to get a little creative. Overall I believe this is the perfect
|
||||
way to install and use steam as it self contains it cleanly while not limiting the functionalities. In particular sound works, as does the hardware acceleration in games. I tried to
|
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achieve that with containers but didn't quite made it work as well as this chroot setup.
|
||||
|
||||
## Installation notes
|
||||
|
||||
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/
|
||||
and adjust the download url manually bellow :
|
||||
|
||||
{{< highlight sh >}}
|
||||
mkdir /usr/local/steam
|
||||
cd /usr/local/steam
|
||||
wget http://distfiles.gentoo.org/releases/amd64/autobuilds/current-stage3-amd64/stage3-amd64-20190122T214501Z.tar.xz
|
||||
tar -xvpf stage3*
|
||||
rm stage3*
|
||||
cp -L /etc/resolv.conf etc
|
||||
mkdir usr/portage
|
||||
mkdir -p srv/gentoo-distfiles
|
||||
mount -R /dev dev
|
||||
mount -R /sys sys
|
||||
mount -t proc proc proc
|
||||
mount -R /usr/portage usr/portage
|
||||
mount -R /usr/src usr/src
|
||||
mount -R /srv/gentoo-distfiles/ srv/gentoo-distfiles/
|
||||
mount -R /run run
|
||||
cp /etc/portage/make.conf etc/portage/
|
||||
sed -e '/LLVM_TARGETS/d' -e '/getbinpkg/d' -i etc/portage/make.conf
|
||||
rm -rf etc/portage/package.use
|
||||
cp /etc/portage/package.use etc/portage/
|
||||
cp /etc/portage/package.accept_keywords etc/portage/
|
||||
chroot .
|
||||
env-update && source /etc/profile
|
||||
wget -P /etc/portage/repos.conf/ https://raw.githubusercontent.com/anyc/steam-overlay/master/steam-overlay.conf
|
||||
emaint sync --repo steam-overlay
|
||||
emerge dev-vcs/git -q
|
||||
emerge --ask games-util/steam-launcher
|
||||
useradd -m -G audio,video steam
|
||||
{{< /highlight >}}
|
||||
|
||||
## Launch script
|
||||
|
||||
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
|
||||
/run inside the chroot :
|
||||
{{< highlight sh >}}
|
||||
su
|
||||
cd /usr/local/steam
|
||||
mount -R /dev dev
|
||||
mount -R /sys sys
|
||||
mount -t proc proc proc
|
||||
mount -R /usr/portage usr/portage
|
||||
mount -R /usr/src usr/src
|
||||
mount -R /run run
|
||||
chroot .
|
||||
env-update && source /etc/profile
|
||||
su steam
|
||||
steam
|
||||
{{< /highlight >}}
|
||||
Loading…
Add table
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Reference in a new issue