# # 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=$bios_grubn
+boot_mib=1500
+
+
+##### end configuration
-if ifclass VM; then
- d=vd
+if ifclass REPARTITION;then
+ partition=true # force a full wipe
else
- d=sd
+ partition=false # change to true to force a full wipe
fi
-letters=()
-if ifclass TWO_DISK; then
- letters=(a b)
-elif ifclass ONE_DISK; then
- letters=(a)
-elif ifclass MANY_DISK; then
- for dev in /dev/${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
-##### end configuration
+
+boot_devs=()
+for dev in ${devs[@]}; do
+ if ifclass frodo; then
+ # I ran into a machine where the bios doesn't know about some disks,
+ # so 1st stage of grub also doesn't know about them.
+ # Also, grub does not support mounting degraded btrfs as far as
+ # I can tell with some googling.
+ # From within an arch install env, I could detect them by noting
+ # their partitions were mixed with the next disk in /dev/disk/by-path,
+ # and I have mixed model disks, and I could see the 8 models which showed
+ # up in the bios, and thus see which 2 models were missing.
+ # hdparm -I /dev/sdh will give model info in linux.
+ # However, in fai on jessie, that dir doesn't exist,
+ # and I don't see another way, so I'm hardcoding them.
+ # We still put grub on them and partition them the same, for uniformity
+ # and in case they get moved to a system that can recognize them,
+ # we just exclude them from the boot filesystem.
+ cd /dev/disk/by-id/
+ bad_disk=false
+ for id in ata-TOSHIBA_MD04ACA500_8539K4TQFS9A \
+ ata-TOSHIBA_MD04ACA500_Y5IFK6IJFS9A; do
+ if [[ $(readlink -f $id) == $dev ]]; then
+ bad_disk=true
+ break
+ fi
+ done
+ $bad_disk || boot_devs+=($dev$bootn)
+ else
+ boot_devs+=($dev$bootn)
+ fi
+done
+
+if [[ ! $DISTRO ]]; then
+ if ifclass STABLE; then
+ DISTRO=debianjessie
+ else
+ DISTRO=debiantesting
+ fi
+fi
+
+
+
+case ${#boot_devs[@]} in
+ # need double the space if we are raid 10, and then
+ # might as well give some extra overhead.
+ [4-9]*|[1-3]?*) boot_mib=$((boot_mib * 3)) ;;
+esac
bpart() { # btrfs a partition
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
swap_mib=$(( $(grep ^MemTotal: /proc/meminfo | \
awk '{print $2}') * 3/(${#devs[@]} * 2 ) / 1024 ))
-# parted will round up the disk size. Do -1 so we can have
-# 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=$(( disk_mib - swap_mib - boot_mib ))
-swap_end=$(( root_end + swap_mib))
mkdir -p /tmp/fai
shopt -s nullglob
done
done
for dev in ${devs[@]}; do
+ # parted will round up the disk size. Do -1 so we can have
+ # fully 1MiB unit partitions for easy resizing of the last partition.
+ # Otherwise we would pass in -0 for the end argument for the last partition.
+ disk_mib=$(( $(parted -m $dev unit MiB print | \
+ sed -nr "s#^$dev:([0-9]+).*#\1#p") - 1))
+ root_end=$(( disk_mib - swap_mib - boot_mib / ${#boot_devs[@]} ))
+ swap_end=$(( root_end + swap_mib))
+
parted -s $dev mklabel gpt
# gpt ubuntu cloud image uses ~4. fai uses 1 MiB.
# I read something in the parted manual saying cheap flash media
--key-file $luks_dir/host-$HOSTNAME
done
bpart ${crypt_devs[@]/%/$rootn}
- mount $crypt /mnt
+ bpart ${boot_devs[@]}
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_$DISTRO 0 0
EOF
swaps=()
EOF
done
+# fai would do this:
+#BOOT_DEVICE=\${BOOT_DEVICE:-"${devs[0]}"}
# swaplist seems to do nothing.
cat >/tmp/fai/disk_var.sh <<EOF
ROOT_PARTITION=\${ROOT_PARTITION:-$crypt}
BOOT_PARTITION=\${BOOT_PARTITION:-$first_boot_dev}
-BOOT_DEVICE=\${BOOT_DEVICE:-"${devs[0]}"}
+BOOT_DEVICE="${devs[@]}"
SWAPLIST=\${SWAPLIST:-"${swaps[@]}"}
EOF
iankelling.org / git / automated-distro-installer / blobdiff