X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=blobdiff_plain;f=README;h=4bbcc87018079be31b6f0a1c59398c8dbd814733;hp=3c9b6d2d8850316cf8c5d8e445debecd286476a7;hb=1b08e82a978c8db76e1ebc67f3b4ae875ba27537;hpb=da61a304a10de72288782a9d872769fe44576f50 diff --git a/README b/README index 3c9b6d2..4bbcc87 100644 --- a/README +++ b/README @@ -1,25 +1,44 @@ PXE install w multi-boot, btrfs & Libreboot support Some things are specific to my home network, and uses files with secrets -that are not in this repo. Uses pxe or pxe-kexec (on libreboot, I have -not added a pxe rom, I use a minimal debian stable subvolume which acts -like a pxe rom). I use this for bare metal and vms, and two scripts -which can run post boot so I use them on vps distributed image as well. - -Features people may find useful: installs encrypted trisquel belenos, , -debian jessie, debian stretch, ubuntu 16.04, and arch (havne't done -recently, probably a bit broken), in a multi-boot setup using multiple +that are not in this repo. I use this for bare metal and vms, and two +scripts which can run post boot so I use them on vps distributed image +as well. + +Features people may find useful: installs encrypted trisquel, debian, +ubuntu, arch, and parabola (archlike install is likely broken, I've only +done pxe boots recently), in a multi-boot setup using multiple subvolumes of a single btrfs filesystem. Utilizes multiple disks, with scripts to automatically decrypt on intentional reboots, but not after shutdown or power loss. +Normal install mode for fai is using pxe, but on a libreboot system, +there is no pxe. The pxe in a normal computer is nonfree +firmware. Alternatives to normal pxe that I've tried: + +* libreboot + seabios + ipxe + +* Use a live cd to call pxe-kexec, this is described later in this file. + +* Use the fai autodiscover iso. This is more automated, so nicer. + +* Use an install method above to setup a gnu/linux disk partition that + coordinates with libreboot grub to acts like a pxe boot using + kexec. The boot process takes a bit longer than normal pxe. This is + the bootstrap partition in my scripts. + +Things I haven't tried: + +* The bios chip has enough room for an initrd. This could be setup to + work like the partition I use to kexec, but it would be faster, and + not require installing to disk. + The partititioning and filesystem script is at -fai/config/hooks/partition.DEFAULT. Other debian based distros at least -as new as ubuntu 14.04 should work fine, and I'm planning to add Fedora -support. Disks are grouped as ssd or hdd and raided in raid 1 or raid 0 -per configuration. The base partitions are divided into boot, swap, and -root, (only boot is unencrypted). There are scripts to resize those -partitions post-provision and while the system is running. +fai/config/hooks/partition.DEFAULT. Disks are grouped as ssd or hdd and +raided in raid 1 or raid 0 per configuration. The base partitions are +divided into boot, swap, and root, (only boot is unencrypted). There are +scripts to resize those partitions post-provision and while the system +is running. People who use fai may find these things as useful examples: it uses dnsmasq (on a openwrt machine) for dhcp instead of the isc @@ -45,27 +64,62 @@ Some of the scripts have dependencies for some simple obvious utility scripts from https://iankelling.org/git, and of course there are some hostnames that are specific to my network. -All scripts meant to be used directly are listed here: +# Per-host/install configuration + +Before doing a fai install, you will need to populate a class file. I +use one called 51-multi-boot, which you can see example of in +fai/config/class/50-host-classes. + + + +Before doing a fai install, you will need to populate /q/root/luks and +/q/root/shadow, see their references. You might also want to copy +existing /etc/ssh/*host* to +/p/c/machine_specific/HOST/filesystem/etc/ssh + +host-* luks keyfiles generated like: +head -c 2048 /dev/urandom | od | s dd of=/q/root/luks/host-demohost + +Configuration of which luks key to use is in +fai/config/hooks/partition.DEFAULT -# Scripts to setup the environment for the install +Configuration of which (if any) shadow file to use is in +fai/config/distro-install-common/end +and which shadow file / luks file(s) to copy into the new machine depends +on fai-redep arguments. -arch-pxe # Setup arch pxe boot server from an arch base image +# Scripts (meant to be used directly): + + +# Setup the environment for the install + +# create tiny autodiscover cd +# todo: with fai-revm at least, this complains about missing vmlinuz. need to fix this. +fai-redep && sudo fai-cd -g $PWD/grub.cfg.autodiscover -f -A $BASEFILE_DIR/autodiscover.iso +# create normal fai cd (replace TARGET_HOSTNAME) +fai-redep -t TARGET_HOSTNAME && sudo fai-cd -M -g $PWD/grub.cfg.netinst-noreboot -f $BASEFILE_DIR/netinst.iso +# note, may need to set hostname, depending on config, +# and some other things for environment not on your lan +# for example see fai/config/class/LINODE.var. See linode notes below. + +mymk-basefile # Create basefiles for various distros +archlike-pxe # Setup pxe boot server from an archlike base image fai-redep # Deploy fai configuration to host "faiserver" -faiserver-revm # using pxe & preseed, create a vm which is a fai server faiserver-uninstall # uninstall fai-server faiserver-setup # install fai-server on the current machine myfai-chboot # setup fai tftp and nfs. useful for doing pxe-kexec pxe-server # disable/enable pxe dhcp, tfp, and nfs. calls myfai-chboot -wrt-setup-remote # setup my router in general: dhcp, dns, etc. +wrt-setup # setup my router in general: dhcp, dns, etc. # Script to do a distro install +faiserver-revm # using pxe & preseed, create a vm which is a fai server dsfull # install & post-install a new fai distro arch-init-remote # install arch after it's been booted into it's setup env -fai-kexec # Kexec this or a remote machine using host faiserver -live-kexec # fai kexec from upstream live cds, e.g. curl live-kexec|bash +live-kexec # Kexec this or a remote machine using host faiserver. also + useful to run as curl live-kexec|bash # Test scripts @@ -84,8 +138,199 @@ faiserver-disable # Disable the fai nfs server exports fresize # resize swap or boot partitions in a host -License stuff: +# Replacing a raid 10 disk + +pxe-server -S HOST fai + +# btrfs replace or delete. prefer replace. to setup partitions on replacement drive: +scp fai-wrapper HOST: +ssh root@HOST +. fai-wrapper +export SPECIAL_DISK=/dev/REPLACEMENT_DEV +/var/lib/fai/config/hooks/partition.DEFAULT + + +ssh root@HOST +for x in /target/* /target; do umount $x; done +cat >p +PASSWORD HERE(ctrl-d ctrl-d) +cd /dev/disk/by-id/ +for d in ata*part1; do cryptsetup luksOpen -d /root/p $d crypt_dev_$d; done +x=(/dev/mapper/*part1); mount -o subvol=root_trisquelflidas $x /mnt +# btrfs fi show /mnt +# btrfs replace start -f /dev/mapper/OLD_DEV /dev/mapper/NEW_DEV /mnt +# btrfs replace status /mnt +# nohup btrfs dev delete /dev/sde1 /mnt +mount -o subvol=boot_trisquelflidas /dev/sda3 /mnt/boot +# also replace or delete disk for boot +for x in dev proc sys; do mount -o bind /$x /mnt/$x; done +chroot /mnt /bin/bash +# replace disk in fstab +# replace disk in /etc/crypttab +update-grub +update-initramfs -u +mount /a +/a/exe/keyscript-on +exit +reboot + + +# Expected output in fai logs + +On focal, +fai.log:updatebase.UBUNTU FAILED with exit code 1. +the real error is dpkg-reconfigure locales, seems to be related +to a workaround for < 20.04, relevant comment: +# in case the locales are already included inside the base file (Ubuntu) +in config/hooks/instsoft.DEBIAN + + +For flidas, when installing systemd, this error happens, and it's +a superflous upstream bug based on reading the post install script: + +addgroup: The group `systemd-journal' already exists as a system group. Exiting. +Operation failed: No such file or directory + +On nabia/newer, python is removed, now its python3, +and its easier to just let the package get removed than +do host class package config. +fai.log:WARNING: These unknown packages are removed from the installation list: python python-minimal + +Similar to python, linux-image-amd64 is the debian package name +for the kernel, linux-image-generic is for ubuntu, but the +DEBIAN class is defined on ubuntu and its easier to just let +the package get removed with this warning: +fai.log:WARNING: These unknown packages are removed from the installation list: linux-image-amd64 +Also, cryptsetup-initramfs is new to buster/nabia, it gets removed +on earlier versions. + + +# linode notes + +* create 2 disks, installer (3000 mb, raw), boot (remaining, raw) +* create 2 profiles w direct boot, no helpers: + * installer (sda=boot, sdb=installer, boot dev=sdb) + * boot (sda=boot) +* Boot into rescue mode, ssh in with lish, + curl url_to_some_fai_cd_created_image | dd of=/dev/sda + poweroff +* boot into installer. +* Lish shows console, at the end of install, it gives prompt because + logs failed to save remotely, check the logs, then reboot into boot + profile if all is well. If that doesn't happen, turn off lassie in + settings. + + +# ubuntu notes + +For someone who really needed ubuntu on host tp, otherwise they would +end up on a non-gnu os, and I didn't want to figure out how to get all +the default software installed, I did the following: + +# On remote host: +# install etiona +cd /b/fai +# set 51-multi-boot to set classes outside of fai-wrapper conditional, including NOWIPE +. fai-wrapper +./fai/config/hooks/partition.DEFAULT + +# on remote host +# install ubuntu 20.04 using virt-install +sudo -i +virt-install --os-variant=ubuntu16.04 --cdrom ubuntu-20.04-desktop-amd64.iso --disk path=u2004.qcow2 -r 2048 --vcpus 1 -n u2004 +qemu-img create -o preallocation=metadata -f qcow2 u2004.qcow2 15G +# alternatively, also tried a physical install, because I know the virtual install ends up +# with some differen things, like some spice service. then pulled the data out with +rsync -ahSAX --numeric-ids --exclude=proc --exclude=sys --exclude=dev --exclude=tmp --exclude=run root@tp:/ .; mkdir proc sys dev tmp + +modprobe nbd +qemu-nbd --connect=/dev/nbd0 u1804.qcow2 -f qcow2 +qemu-nbd --connect=/dev/nbd0 u2004.qcow2 -f qcow2 +mount /dev/nbd0p1 /mnt/1 # bionic +mount /dev/nbd0p5 /mnt/1 # focal +mount -o bind /mnt/root/root_ubuntubionic /mnt/2 +mount -o bind /mnt/root/root_ubuntufocal /mnt/2 +mkdir -p /mnt/2/boot +mount -o bind /mnt/boot/boot_ubuntubionic /mnt/2/boot +mount -o bind /mnt/boot/boot_ubuntufocal /mnt/2/boot +# S = sparse, A = acls, X = xattrs +rsync -ahSAX --numeric-ids /mnt/1/ /mnt/2 + +cd /mnt/2 +cp /tmp/fai/crypttab etc +sed -i "s#/root/keyscript,#decrypt_keyctl,#" etc/crypttab +cp /tmp/fai/fstab etc +echo "tmpfs /tmp tmpfs nodev,nosuid,size=50%,mode=1777 0 0" >> etc/fstab +chrbind +chroot . +mv /etc/resolv.conf /etc/resolv.conf.old +echo nameserver 1.1.1.1 >/etc/resolv.conf +# install programs from /a/bin/fai/fai/config/package_config/STANDARD: +apt install -y openssh-client openssh-server cryptsetup keyutils btrfs-progs console-setup kbd pciutils usbutils unattended-upgrades initramfs-tools-core dropbear-initramfs +mv /etc/resolv.conf.old /etc/resolv.conf +exit +d=etc/initramfs-tools +mkdir -p $d/root/.ssh etc/dropbear-initramfs root/.ssh +chmod 700 $d/root $d/root/.ssh root/.ssh +cp -p /root/.ssh/authorized_keys $d/root/.ssh/authorized_keys +cp -p /root/.ssh/authorized_keys etc/dropbear-initramfs +cp -p /root/.ssh/authorized_keys root/.ssh/authorized_keys +chroot . +sed -ri 's/^ *GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="rd.luks.crypttab=no"/' /etc/default/grub +grub-install --no-floppy $(grub-probe -tdrive -d /dev/sda) +update-grub +grub-bios-setup -d /boot/grub/i386-pc -s /dev/sda +exit +umount proc +umount dev +umount sys +reboot + +# for switching the boot to root2 +zboot +# for switching back, efibootmgr, if there is a problem with the root filesystem detection, +# boot into the debian bootstrap distro, run partition.DEFAULT using comments for mktab arg. +# then manually run iboot and then reboot. + + +# pine rock64 notes +# the only useful image is ubuntu 18.04 ayafun or something. +# using emmc usb: +s mount /dev/sdb7 /mnt/1 +s cp `which qemu-arm-static` /mnt/1/usr/bin +s chroot /mnt/1 qemu-arm-static /bin/bash +usermod --login iank --move-home --home /home/iank rock46 +groupmod --new-name iank rock64 +passwd iank +# boot it +s apt-get update +s apt dist-upgrade + + +### How to merge upstream fai-config + +git checkout upstream +cd path-to-fai-config +git pull --stat +# the following needs modification if there was deletions or renames +rsync --exclude /.git -rlpgoDcvi . /b/fai/fai/config/ +cd /b/fai/fai/config/ +# where XXXXX is the git commit hash +# note, several files which just had trailing space changes will get ignored. +git commit -am "update upstream to XXXXX" +git checkout master +git merge upstream +# fix conflicts +git commit + + +# TODO +Change arch to archlike and to support arch and parabola + + +# License + The license for the project is GPLv2 or later, mostly because fai is and -I periodically rebase off their example config, which contains small +I periodically merge the upstream example config, which contains small scripts. Also, there is a modified encrypt.upstream, which is from the cryptsetup package in arch, which is under the same license.