tweaks

setup.sh

@@ -1,8 +1,5 @@
 #! /bin/bash
 
-#IFS=$'\n'
-
-# fresh update on apt in Ubuntu
 echo ""
 echo "Updating local packages..."
 errors=`apt-add-repository universe >/dev/null 2>/dev/null && apt update >/dev/null 2>/dev/null`
@@ -28,25 +25,19 @@ width=`tput cols`
 height=`tput lines`
 window=$((height - 5))
 
-# set line separator
+# gather input at the start
 devices=""; for device in $(ls /dev/disk/by-id | grep -v part); do devices="$devices $device off"; done
 disks=`dialog --separate-output --no-cancel --no-items --title "Root devices" --checklist "Select boot drives" $height $width ${window}$devices 2>&1 1>/dev/tty`
 raidtype=`dialog --no-items --no-cancel --title "Root pool ZFS RAID" --radiolist "Select root pool ZFS RAID type" 12 35 5 raidz off raidz2 off raidz3 off mirror off none off 2>&1 1>/dev/tty`
-
 hostname=""; while [ -z "$hostname" ]; do hostname=`dialog --no-cancel --inputbox "Host name/Server name" 8 100 2>&1 >/dev/tty`; done
 nicdevices=""; for nic in $(ip -o link show | awk -F': ' '{print $2}' | grep -v '^lo'); do nicdevices="$nicdevices $nic off"; done
 nics=`dialog --separate-output --no-cancel --no-items --title "Network devices for bridge" --checklist "Select the network devices to be bridged" $height $width ${window}$nicdevices 2>&1 1>/dev/tty`
-
 rootpassword=`dialog --no-cancel --title "Root password" --passwordbox "Enter root password" $height $width 2>&1 1>/dev/tty`
-
 timezone=`dialog --no-cancel --title "Timezone" --inputbox "Enter time zone" $height $width "America/Los_Angeles" 2>&1 1>/dev/tty`
 
-
 for disk in `echo "$disks"`; do
-        # remove echo for testing
 		echo ""
         echo "Partitioning disk $disk..."
-        # collect the return values, check them for errors and display them
 		errors=`sgdisk --zap-all /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n2:1M:+512M -t2:EF00 /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n3:0:+512M -t3:BF01 /dev/disk/by-id/$disk 2>&1 1>/dev/null && sgdisk -n4:0:0 -t4:BF01 /dev/disk/by-id/$disk 2>&1 1>/dev/null`
 		if ! [ "$?" = "0" ]; then
 			echo "Failed to partition disk $disk - $errors"
@@ -58,19 +49,9 @@ done
 # create boot mirror list
 bootmirror=""; rootraidz=""; for disk in `echo "$disks"`; do bootmirror="$bootmirror /dev/disk/by-id/${disk}-part3"; rootraidz="$rootraidz /dev/disk/by-id/${disk}-part4"; done
 
-# refresh drives
+# refresh drives or there are missing partitions
 partprobe 2>/dev/null 1>/dev/null
 
-# wait for the partitions to show up
-#for disk in `echo "$disks"`
-#do#
-#	while ! [ -e "/dev/disk/by-id/${disk}-part3" ]; do
-#		sleep 1s
-#	done
-#done
-
-#ls -l /dev/disk/by-id | grep part3
-
 echo ""
 echo "Creating boot zpool..."
 errors=`zpool create -f -o ashift=12 -d -o feature@async_destroy=enabled -o feature@bookmarks=enabled -o feature@embedded_data=enabled -o feature@empty_bpobj=enabled -o feature@enabled_txg=enabled -o feature@extensible_dataset=enabled -o feature@filesystem_limits=enabled -o feature@hole_birth=enabled -o feature@large_blocks=enabled -o feature@lz4_compress=enabled -o feature@spacemap_histogram=enabled -o feature@userobj_accounting=enabled -O acltype=posixacl -O canmount=off -O compression=lz4 -O devices=off -O normalization=formD -O relatime=on -O xattr=sa -O mountpoint=/ -R /mnt bpool mirror$bootmirror 2>&1 1>/dev/null`
@@ -80,14 +61,13 @@ if ! [ "$?" = "0" ]; then
 fi
 echo "Done."
 
+# special exception for none raid - this just operates the disks like a stripe, for 1 or more disk - *not* recommended
 if [ "$raidtype" = "none" ]; then
 	raidtype=""
 else
 	raidtype=" $raidtype"
 fi
 
-# test for boot pool creation
-
 echo ""
 echo "Creating main zpool..."
 error=`zpool create -f -o ashift=12 -O acltype=posixacl -O canmount=off -O compression=lz4 -O dnodesize=auto -O normalization=formD -O relatime=on -O xattr=sa -O mountpoint=/ -R /mnt rpool${raidtype}${rootraidz} 2>&1 1>/dev/null`
@@ -100,7 +80,6 @@ echo "Done."
 echo ""
 echo "Setting up main zpool dataset configuration..."
 errors=`zfs create -o canmount=off -o mountpoint=none rpool/ROOT 2>&1 1>/dev/null && zfs create -o canmount=off -o mountpoint=none bpool/BOOT 2>&1 1>/dev/null && zfs create -o canmount=noauto -o mountpoint=/ rpool/ROOT/ubuntu 2>&1 1>/dev/null && zfs mount rpool/ROOT/ubuntu 2>&1 1>/dev/null && zfs create -o canmount=noauto -o mountpoint=/boot bpool/BOOT/ubuntu 2>&1 1>/dev/null && zfs mount bpool/BOOT/ubuntu 2>&1 1>/dev/null && zfs create                                 rpool/home 2>&1 1>/dev/null && zfs create -o mountpoint=/root             rpool/home/root 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/var 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/var/lib 2>&1 1>/dev/null && zfs create                                 rpool/var/log 2>&1 1>/dev/null &&  zfs create                                 rpool/var/spool 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/cache 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/tmp 2>&1 1>/dev/null && chmod 1777 /mnt/var/tmp 2>&1 1>/dev/null && zfs create                                 rpool/opt 2>&1 1>/dev/null && zfs create                                 rpool/srv 2>&1 1>/dev/null && zfs create -o canmount=off                 rpool/usr 2>&1 1>/dev/null && zfs create                                 rpool/usr/local 2>&1 1>/dev/null && zfs create                                 rpool/var/mail 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/lib/docker 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/var/lib/nfs 2>&1 1>/dev/null && zfs create -o com.sun:auto-snapshot=false  rpool/tmp 2>&1 1>/dev/null && chmod 1777 /mnt/tmp 2>&1 1>/dev/null`
-
 if ! [ "$?" = "0" ]; then 
 	echo "Error setting up ZFS settings - $errors"
 	exit 5
@@ -142,7 +121,7 @@ echo "deb http://archive.ubuntu.com/ubuntu bionic-updates main universe" >> /mnt
 echo "deb-src http://archive.ubuntu.com/ubuntu bionic-updates main universe" >> /mnt/etc/apt/sources.list
 echo "Done."
 
-# you really need static config here too!
+# network configuration should have optional static configuration - not just DHCP, it's very important
 
 echo ""
 echo "Writing netplan file"
@@ -184,7 +163,7 @@ echo "echo \"\""  >> /mnt/setup-chroot.sh
 echo "echo \"Updating apt repositories inside chroot...\""  >> /mnt/setup-chroot.sh
 echo "errors=`apt update 2>&1 1>/dev/null`" >> /mnt/setup-chroot.sh
 echo "if ! [ \"\$?\" = \"0\" ]; then ">> /mnt/setup-chroot.sh
-echo "	echo \"Failed to update apt repositories inside chroot - $errors\"" >> /mnt/setup-chroot.sh
+echo "	echo \"Failed to update apt repositories inside chroot - \$errors\"" >> /mnt/setup-chroot.sh
 echo "	exit 1">> /mnt/setup-chroot.sh
 echo "fi">> /mnt/setup-chroot.sh
 echo "echo \"Done.\"">> /mnt/setup-chroot.sh
@@ -218,7 +197,11 @@ echo "exit 0" >> /mnt/setup-chroot.sh
 #addgroup --system lpadmin
 #addgroup --system sambashare
 
-#zfscheck=`grub-probe /boot`
+echo "echo \"Checking ZFS root...\"" >> /mnt/setup-chroot.sh
+echo "zfscheck=`grub-probe /boot 2>&1 1>/dev/null`" >> /mnt/setup-chroot.sh
+echo "if ! [ \"\$?\" = \"0\" ]; then echo \"grub-probe check failed - \$zfscheck\"; exit 2; fi" >> /mnt/setup-chroot.sh
+echo "echo \"Success.\"" >> /mnt/setup-chroot.sh
+
 echo "update-initramfs -u -k all"  >> /mnt/setup-chroot.sh
 
 # you need sed to do this right!