X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=README;h=5dd5d3df4bae069724be8c98f2469fcc2897e999;hb=cef9b6ede5c1e028bed1b4dc7895f5dfa121ad6b;hp=328751471791e8238aceaface448c14fc9ff53ac;hpb=8d5ef1a7a61d7475823452f47f5b4cd7a06722e8;p=automated-distro-installer

diff --git a/README b/README
index 3287514..5dd5d3d 100644
--- a/README
+++ b/README
@@ -64,21 +64,45 @@ 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.
 
+
+# Per-host/install configuration
+
 Before doing a fai install, you will need to populate a class file.  I
-use one called 5-multi-boot, which you can see example of in
+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.
+/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
 
+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.
 
-All scripts meant to be used directly are listed here:
+# Scripts (meant to be used directly):
 
 
-# Scripts to setup the environment for the install
+# 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.
 
-sudo fai-cd -g grub.cfg.autodiscover -f -A $BASEFILE_DIR/autodiscover.iso # create autodiscover cd
 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"
@@ -94,8 +118,8 @@ wrt-setup  # setup my router in general: dhcp, dns, etc.
 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
@@ -116,15 +140,32 @@ fresize # resize swap or boot partitions in a host
 
 # Replacing a raid 10 disk
 
+# i expect better results with newer kernel and btrfs progs than the default stretch
+fai-server buster
+
 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
-for x in /target/*; do umount $x; done
 PASSWORD HERE(ctrl-d ctrl-d)
-for d in /dev/disk/by-id/ata*part1; do cryptsetup luksOpen --key-file p $d crypt_dev_${d##*/}; done
-# btrfs replace disk # i forget the actual command
+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
@@ -146,6 +187,67 @@ addgroup: The group `systemd-journal' already exists as a system group. Exiting.
 Operation failed: No such file or directory
 
 
+# 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 local host
+# install ubuntu 20.04 using virt-install
+s virt-install --os-variant=ubuntu16.04 --cdrom ubuntu-20.04-desktop-amd64.iso --disk path=u2004.qcow2 -r 2048 --vcpus 1 -n u2004
+sudo qemu-img create -o preallocation=metadata -f qcow2 u2004.qcow2 15G
+modprobe nbd
+qemu-nbd --connect=/dev/nbd0 u2004.qcow2 -f qcow2
+s mount /dev/nbd0p5 /mnt/1
+s rsync -avhSAXP --numeric-ids /mnt/1/ root@tp:/mnt/root/root_ubuntubionic
+
+# on remote host:
+# mount boot and root to /mnt/1
+sudo -i
+cd /mnt/1
+cp /tmp/fai/crypttab etc
+cp /tmp/fstab etc
+chrbind
+chroot .
+# install programs from /a/bin/fai/fai/config/package_config/STANDARD:
+apt install openssh-client openssh-server cryptsetup keyutils btrfs-progs console-setup kbd pciutils usbutils unattended-upgrades initramfs-tools-core dropbear-initramfs
+exit
+# install authorized keys in dropbear and .ssh folder
+chroot .
+grub-install --no-floppy $(grub-probe -tdrive -d /dev/sda3)
+update-grub
+grub-bios-setup -d /boot/grub/i386-pc -s /dev/sda
+exit
+umount proc
+umount dev
+umount sys
+reboot
+
+
 # TODO
 Change arch to archlike and to support arch and parabola