# # fai's setup-storage won't do btrfs on luks,
# # so we do it ourself :)
-skiptask partition ||: # for running out of fai
+skiptask partition || ! type skiptask # for running not in fai
#### begin configuration
rootn=1
swapn=2
bios_grubn=4
-boot_mib=750
-lastn=$bios_grubn
+boot_mib=1500
+
-if ifclass VM; then
- d=vd
+##### end configuration
+
+if ifclass REPARTITION;then
+ partition=true # force a full wipe
else
- d=sd
+ partition=false # change to true to force a full wipe
fi
-letters=()
-if ifclass TWO_DISK; then
- letters=(a b)
-elif ifclass ONE_DISK; then
- letters=(a)
-elif ifclass MANY_DISK; then
- for dev in /dev/${d}?; do letters+=(${dev#/dev/${d}}); done
+lastn=$bios_grubn
+
+
+hds=()
+ssds=()
+cd /sys/block
+for disk in [sv]d[a-z]; do
+ case $(cat $disk/queue/rotational) in
+ 0) ssds+=(/dev/$disk) ;;
+ 1) hds+=(/dev/$disk) ;;
+ *) echo "$0: error: unknown /sys/block/$disk/queue/rotational: \
+$(cat $disk/queue/rotational)"; exit 1 ;;
+ esac
+done
+
+# install all ssds, or if there are none, all hdds
+if (( ${#ssds[@]} > 0 )); then
+ devs=( ${ssds[@]} )
else
- exit 1
+ devs=( ${hds[@]} )
+fi
+
+
+if [[ ! $DISTRO ]]; then
+ if ifclass STABLE; then
+ DISTRO=debianjessie
+ else
+ DISTRO=debiantesting
+ fi
fi
-##### end configuration
-bpart() {
+
+bpart() { # btrfs a partition
dev_n=$1
case ${#@} in
[1-3]) mkfs.btrfs -f $@ ;;
esac
}
-devs=(${letters[@]/#//dev/${d}})
-crypt_devs=(${letters[@]/#//dev/mapper/crypt_dev_${d}})
first_boot_dev=${devs[0]}$bootn
-partition=true # hardcoded for now
-
+crypt_devs=()
# somewhat crude detection of whether to partition
for dev in ${devs[@]}; do
+ crypt_devs+=( /dev/mapper/crypt_dev_${dev#/dev/} )
x=($dev[0-9])
[[ ${#x[@]} == ${lastn} ]] || partition=true
for (( i=1; i <= $lastn; i++ )); do
done
done
-#partition=true # for temporarily override
-
# keyfiles generated like:
# head -c 2048 /dev/urandom | od | s dd of=/q/root/luks/host-demohost
luks_dir=${LUKS_DIR:-/var/lib/fai/config/distro-install-common/luks}
fi
-crypt=/dev/mapper/crypt_dev_${d##/dev/}a$rootn
+crypt=${crypt_devs[0]}$rootn
bios_grub_end=4
# 1.5 x based on https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Installation_Guide/sect-disk-partitioning-setup-x86.html#sect-custom-partitioning-x86
# fully 1MiB unit partitions for easy resizing of the last partition.
# Otherwise we would pass in -0 for the end argument for the last partition.
disk_mib=$(( $(parted -m ${devs[0]} unit MiB print | \
- sed -nr "s#^${devs[0]}:([0-9]+).*#\1#p") - 1))
-root_end=$(( disk_mib - swap_mib - boot_mib ))
+ sed -nr "s#^${devs[0]}:([0-9]+).*#\1#p") - 1))
+root_end=$(( disk_mib - swap_mib - boot_mib / ${#devs[@]} ))
swap_end=$(( root_end + swap_mib))
mkdir -p /tmp/fai
shopt -s nullglob
if $partition; then
for dev in ${devs[@]}; do
- for x in $dev[0-9]; do wipefs -a $x; done
+ for x in $dev[0-9]; do
+ count_down=10
+ # wipefs has failed, manual run works, google suggests timing issue
+ while ! wipefs -a $x; do
+ sleep 2
+ count_down=$((count_down - 1))
+ (( count_down > 0 )) || exit 1
+ done
+ done
done
for dev in ${devs[@]}; do
parted -s $dev mklabel gpt
--key-file $luks_dir/host-$HOSTNAME
done
bpart ${crypt_devs[@]/%/$rootn}
- mount $crypt /mnt
+ bpart ${devs[@]/%/$bootn}
else
for dev in ${devs[@]}; do
cryptsetup luksOpen $dev$rootn crypt_dev_${dev##/dev/}$rootn \
--key-file $luks_dir/host-$HOSTNAME || [[ $? == 141 ]]
done
sleep 1
- mount -o subvolid=0 $crypt /mnt
- # systemd creates subvolumes we want to delete.
- s=($(btrfs subvolume list --sort=-path /mnt |
- sed -rn 's#^.*path\s*(root/\S+)\s*$#\1#p'))
- for subvol in ${s[@]}; do btrfs subvolume delete /mnt/$subvol; done
- btrfs subvolume set-default 0 /mnt
- btrfs subvolume delete /mnt/root
fi
-bpart ${devs[@]/%/$bootn}
+
+mount -o subvolid=0 $crypt /mnt
+# systemd creates subvolumes we want to delete.
+s=($(btrfs subvolume list --sort=-path /mnt |
+ sed -rn "s#^.*path\s*(root_$DISTRO/\S+)\s*\$#\1#p"))
+for subvol in ${s[@]}; do btrfs subvolume delete /mnt/$subvol; done
+btrfs subvolume set-default 0 /mnt
+[[ ! -e /mnt/root_$DISTRO ]] || btrfs subvolume delete /mnt/root_$DISTRO
## create subvols ##
cd /mnt
-for x in q home root; do
+for x in q home_$DISTRO root_$DISTRO; do
btrfs subvolume list . | grep "$x$" >/dev/null || btrfs subvolume create $x
+ chown root:1000 q
done
+mkdir -p /mnt/root_$DISTRO/boot
for x in root/a q/a; do
mkdir -p $x
chown 1000:1000 $x
chmod 755 $x
done
-btrfs subvolume set-default \
- $(btrfs subvolume list . | grep 'root$' | awk '{print $2}') .
-chattr -Rf +C root
+# could set default like this, but no reason to.
+# btrfs subvolume set-default \
+ # $(btrfs subvolume list . | grep "root_$DISTRO$" | awk '{print $2}') .
+chattr -Rf +C root_$DISTRO
cd /
umount /mnt
-mount $first_boot_dev /mnt
+mount -o subvolid=0 $first_boot_dev /mnt
cd /mnt
-btrfs subvolume create boot
-btrfs subvolume set-default \
- $(btrfs subvolume list . | grep 'boot$' | awk '{print $2}') .
+btrfs subvolume set-default 0 /mnt
+[[ ! -e /mnt/boot_$DISTRO ]] || btrfs subvolume delete /mnt/boot_$DISTRO
+btrfs subvolume create boot_$DISTRO
cd /
umount /mnt
## end create subvols ##
cat > /tmp/fai/fstab <<EOF
-$crypt / btrfs noatime,subvol=/root 0 0
-$crypt /q btrfs noatime,subvol=/q 0 0
+$crypt / btrfs noatime,subvol=root_$DISTRO 0 0
+$crypt /q btrfs noatime,subvol=q 0 0
/q/a /a none bind 0 0
-$crypt /home btrfs noatime,subvol=/home 0 0
-$first_boot_dev /boot btrfs noatime,subvol=/boot 0 0
+$crypt /home btrfs noatime,subvol=home_$DISTRO 0 0
+$first_boot_dev /boot btrfs noatime,subvol=boot_$DISTRO 0 0
EOF
swaps=()