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setup-disk
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setup-disk
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#!/bin/sh
PREFIX=
. "$PREFIX/lib/libalpine.sh"
MBR=${MBR:-"/usr/share/syslinux/mbr.bin"}
GPTMBR=${GPTMBR:-"/usr/share/syslinux/gptmbr.bin"}
ROOTFS=${ROOTFS:-ext4}
BOOTFS=${BOOTFS:-ext4}
VARFS=${VARFS:-ext4}
# default location for mounted root
SYSROOT=${SYSROOT:-/mnt}
in_list() {
local i="$1"
shift
while [ $# -gt 0 ]; do
[ "$i" = "$1" ] && return 0
shift
done
return 1
}
all_in_list() {
local needle="$1"
local i
[ -z "$needle" ] && return 1
shift
for i in $needle; do
in_list "$i" $@ || return 1
done
return 0
}
# wrapper to only show given device
_blkid() {
blkid | grep "^$1:"
}
_uuid() {
blkid -o value -s UUID $1
}
# if given device have an UUID display it, otherwise return the device
uuid_or_device() {
local i=
case "$1" in
/dev/md*) echo "$1" && return 0;;
esac
# crypted devices need a device mapper in fstab not an LVM volume
if [ -n "$CRYPTDM" ]; then
if echo $1| grep "^/dev/$(find_luks_vg)/" 1> /dev/null; then
echo "$(convert_vg_to_mapper $1)" && return 0
elif echo $1| grep "^/dev/mapper/" 1>/dev/null; then
echo "$1" && return 0
fi
fi
UUID=$(_uuid "$1")
if [ -n "$UUID" ]; then
echo "UUID=$UUID"
else
echo "$1"
fi
}
# generate an fstab from a given mountpoint. Convert to UUID if possible
enumerate_fstab() {
local mnt="$1"
local fs_spec= fs_file= fs_vfstype= fs_mntops= fs_freq= fs_passno=
[ -z "$mnt" ] && return
local escaped_mnt=$(echo $mnt | sed -e 's:/*$::' -e 's:/:\\/:g')
awk "\$2 ~ /^$escaped_mnt(\/|\$)/ {print \$0}" /proc/mounts | \
sed "s:$mnt:/:g; s: :\t:g" | sed -E 's:/+:/:g' | \
while read fs_spec fs_file fs_vfstype fs_mntops fs_freq fs_passno; do
echo -e "$(uuid_or_device $fs_spec)\t${fs_file}\t${fs_vfstype}\t${fs_mntops} ${fs_freq} ${fs_passno}"
done
}
is_vmware() {
grep -q VMware /proc/scsi/scsi 2>/dev/null \
|| grep -q VMware /proc/ide/hd*/model 2>/dev/null
}
# return true (0) if given device is lvm
is_lvm() {
local lvmdev="$1"
#lvs does not return true for /dev/mapper/xxx-xxx
if echo "$lvmdev" |grep "/dev/mapper/" |grep "-" 1>/dev/null; then
lvmdev=$(convert_mapper_to_lvm $1)
fi
lvs "$lvmdev" >/dev/null 2>&1
}
# Find the disk device from given partition
disk_from_part() {
# we need convert cciss/c0d0* cciss!c0d0*...
local i= part=$(echo ${1#/dev/} | sed 's:/:!:g')
for i in /sys/block/*/$part; do
i=${i%/*}
# ...and back from cciss!c0d0 to cciss/c0d0
if [ -b "/dev/${i##*/}" ]; then
echo "/dev/${i##*/}" | sed 's:!:/:g'
return 0
fi
done
return 1
}
unpack_apkovl() {
local ovl="$1"
local dest="$2"
local suffix=${ovl##*.}
local i
ovlfiles=/tmp/ovlfiles
if [ "$suffix" = "gz" ]; then
if ! tar -C "$dest" --numeric-owner -zxvf "$ovl" > $ovlfiles; then
echo -n "Continue anyway? [Y/n]: "
read i
case "$i" in
n*|N*) return 1;;
esac
fi
return 0
fi
apk add --quiet openssl
if ! openssl list-cipher-commands | grep "^$suffix$" > /dev/null; then
errstr="Cipher $suffix is not supported"
return 1
fi
local count=0
# beep
echo -e "\007"
while [ $count -lt 3 ]; do
openssl enc -d -$suffix -in "$ovl" | tar --numeric-owner \
-C "$dest" -zxv >$ovlfiles 2>/dev/null && return 0
count=$(( $count + 1 ))
done
ovlfiles=
return 1
}
# find filesystem of given mounted dir
find_mount_fs() {
local mount_point="$1"
awk "\$2 == \"$mount_point\" {print \$3}" /proc/mounts | tail -n 1
}
# find device for given mounted dir
find_mount_dev() {
local mnt="$1"
awk "\$2 == \"$mnt\" { print \$1 }" /proc/mounts | tail -n 1
}
supported_boot_fs() {
local supported="ext2 ext3 ext4 btrfs"
local fs=
for fs in $supported; do
[ "$fs" = "$1" ] && return 0
done
echo "$1 is not supported. Only supported are: $supported" >&2
return 1
}
find_volume_group() {
#lvs does not return true for /dev/mapper/xxx-xxx
if echo "$1" |grep "/dev/mapper/" 1>/dev/null; then
echo "$(find_vg_by_device $1)"
else
local lv=${1##*/}
lvs --noheadings "$1" | awk "\$1 == \"$lv\" {print \$2}"
fi
}
find_pvs_in_vg() {
local vg="$1"
pvs --noheadings | awk "\$2 == \"$vg\" {print \$1}"
}
# echo current grsecurity option and set new
set_grsec() {
local key="$1" value="$2"
if ! [ -e /proc/sys/kernel/grsecurity/$key ]; then
return 0
fi
cat /proc/sys/kernel/grsecurity/$key
echo $value > /proc/sys/kernel/grsecurity/$key
}
init_chroot_mounts() {
local mnt="$1" i=
for i in proc dev; do
mkdir -p "$mnt"/$i
mount --bind /$i "$mnt"/$i
done
}
cleanup_chroot_mounts() {
local mnt="$1" i=
for i in proc dev; do
umount "$mnt"/$i
done
}
has_bootopt() {
local opt="$1"
set -- $(cat /proc/cmdline)
for i; do
[ "$i" = "$opt" ] && return 0
done
return 1
}
install_mounted_root() {
local mnt="$1" mnt_boot= boot_fs= root_fs=
local initfs_features="ata base ide scsi usb virtio"
local pvs= dev= rootdev= bootdev= extlinux_raidopt= root= modules=
local kernel_opts="quiet"
rootdev=$(find_mount_dev "$mnt")
if [ -z "$rootdev" ]; then
echo "$mnt does not seem to be a mount point" >&2
return 1
fi
root_fs=$(find_mount_fs "$mnt")
initfs_features="$initfs_features $root_fs"
if is_lvm "$rootdev"; then
initfs_features="$initfs_features lvm"
local vg=$(find_volume_group "$rootdev")
pvs=$(find_pvs_in_vg $vg)
fi
if [ -n "$CRYPTDM" ]; then
initfs_features="$initfs_features cryptsetup"
fi
bootdev=$(find_mount_dev "$mnt"/boot)
if [ -z "$bootdev" ]; then
bootdev=$rootdev
mnt_boot="$mnt"
else
mnt_boot="$mnt"/boot
fi
boot_fs=$(find_mount_fs "$mnt_boot")
supported_boot_fs "$boot_fs" || return 1
# Check if we boot from raid so we can pass proper option to
# extlinux later.
if [ -e "/sys/block/${bootdev#/dev/}/md" ]; then
extlinux_raidopt="--raid"
fi
# check if our root is on raid so we can feed mkinitfs and
# update-exlinux.conf with the proper kernel module params
for dev in $rootdev $pvs; do
[ -e "/sys/block/${dev#/dev/}/md" ] || continue
local md=${dev#/dev/}
initfs_features="${initfs_features% raid} raid"
local level=$(cat /sys/block/$md/md/level)
case "$level" in
raid1) raidmod="${raidmod%,raid1},raid1";;
raid[456]) raidmod="${raidmod%,raid456},raid456";;
esac
done
# check if we need hardware raid drivers
case $rootdev in
/dev/cciss/*)
initfs_features="${initfs_features% raid} raid"
;;
esac
if [ -n "$VERBOSE" ]; then
echo "Root device: $rootdev"
echo "Root filesystem: $root_fs"
echo "Boot device: $bootdev"
echo "Boot filesystem: $boot_fs"
fi
if [ -z "$APKOVL" ]; then
ovlfiles=/tmp/ovlfiles
lbu package - | tar -C "$mnt" -zxv > "$ovlfiles"
# comment out local repositories
if [ -f "$mnt"/etc/apk/repositories ]; then
sed -i -e 's:^/:#/:' "$mnt"/etc/apk/repositories
fi
else
echo "Restoring backup from $APKOVL to $rootdev..."
unpack_apkovl "$APKOVL" "$mnt" || return 1
fi
# generate mkinitfs.conf
mkdir -p "$mnt"/etc/mkinitfs/features.d
echo "features=\"$initfs_features\"" > "$mnt"/etc/mkinitfs/mkinitfs.conf
if [ -n "$raidmod" ]; then
echo "/sbin/mdadm" > "$mnt"/etc/mkinitfs/features.d/raid.files
echo "/etc/mdadm.conf" >> "$mnt"/etc/mkinitfs/features.d/raid.files
fi
# generate update-extlinux.conf
root=$(uuid_or_device $rootdev)
if is_vmware; then
kernel_opts="pax_nouderef $kernel_opts"
fi
if has_bootopt nomodeset; then
kernel_opts="nomodeset $kernel_opts"
fi
if [ -n "$CRYPTDM" ]; then
kernel_opts="$kernel_opts cryptroot=UUID=$(_uuid $CRYPTROOT) cryptdm=$CRYPTDM"
setup_crypttab
fi
modules="sd-mod,usb-storage,${root_fs}${raidmod}"
sed -e "s:^root=.*:root=$root:" \
-e "s:^default_kernel_opts=.*:default_kernel_opts=\"$kernel_opts\":" \
-e "s:^modules=.*:modules=$modules:" \
/etc/update-extlinux.conf > "$mnt"/etc/update-extlinux.conf
if [ "$(rc --sys)" = "XEN0" ]; then
sed -i -e "s:^default=.*:default=xen-grsec:" \
"$mnt"/etc/update-extlinux.conf
fi
# generate the fstab
if [ -z "$SWAP_DEVICE" ] && [ -n "$(grep ^/dev/ /proc/swaps |awk '{print $1}' |head -1)" ]; then
SWAP_DEVICE=$(uuid_or_device $(grep ^/dev/ /proc/swaps |awk '{print $1}' |head -1))
fi
if [ -f "$mnt"/etc/fstab ]; then
mv "$mnt"/etc/fstab "$mnt"/etc/fstab.old
fi
enumerate_fstab "$mnt" >> "$mnt"/etc/fstab
if [ -n "$SWAP_DEVICE" ]; then
echo -e "${SWAP_DEVICE}\tswap\tswap\tdefaults\t0 0" \
>> "$mnt"/etc/fstab
ln -s /etc/init.d/swap $mnt/etc/runlevels/boot/swap 2>/dev/null
fi
cat >>"$mnt"/etc/fstab <<EOF
/dev/cdrom /media/cdrom iso9660 noauto,ro 0 0
/dev/fd0 /media/floppy vfat noauto 0 0
/dev/usbdisk /media/usb vfat noauto 0 0
EOF
# remove the installed db in case its there so we force re-install
rm -f "$mnt"/var/lib/apk/installed "$mnt"/lib/apk/db/installed
echo "Installing system on $rootdev:"
extlinux $extlinux_raidopt --install "$mnt"/boot
# apk reads config from target root so we need to copy the config
mkdir -p "$mnt"/etc/apk/keys/
cp /etc/apk/keys/* "$mnt"/etc/apk/keys/
local apkflags="--initdb --quiet --progress --update-cache --clean-protected"
local pkgs=$(cat "$mnt"/etc/apk/world "$mnt"/var/lib/apk/world 2>/dev/null)
pkgs="$pkgs acct linux-$KERNEL_FLAVOR alpine-base"
if [ "$(rc --sys)" = "XEN0" ]; then
pkgs="$pkgs xen-hypervisor"
fi
local repos=$(sed -e 's/\#.*//' /etc/apk/repositories)
local repoflags=
for i in $repos; do
repoflags="$repoflags --repository $i"
done
chroot_caps=$(set_grsec chroot_caps 0)
init_chroot_mounts "$mnt"
apk add --root "$mnt" $apkflags --overlay-from-stdin \
$repoflags $pkgs <$ovlfiles
local ret=$?
cleanup_chroot_mounts "$mnt"
set_grsec chroot_caps $chroot_caps > /dev/null
return $ret
}
unmount_partitions() {
local mnt="$1"
# unmount the partitions
umount $(awk '{print $2}' /proc/mounts | egrep "^$mnt(/|\$)" | sort -r)
}
# figure out decent default swap size in mega bytes
find_swap_size() {
local memtotal_kb=$(awk '$1 == "MemTotal:" {print $2}' /proc/meminfo)
# use 2 * avaiable ram or no more than 1/3 of smallest disk space
local size=$(( $memtotal_kb * 2 / 1024 ))
local disk= disksize=
for disk in $@; do
local sysfsdev=$(echo ${disk#/dev/} | sed 's:/:!:g')
local sysfspath=/sys/block/$sysfsdev/size
# disksize = x * 512 / (1024 * 1024) = x / 2048
# maxsize = $disksize / 4 = x / (2048 * 4) = x / 8192
maxsize=$(awk '{ printf "%i", $0 / 8192 }' $sysfspath )
if [ $size -gt $maxsize ]; then
size=$maxsize
fi
done
if [ $size -gt 4096 ]; then
# dont ever use more than 4G
size=4096
elif [ $size -lt 64 ]; then
# dont bother create swap smaller than 64MB
size=0
fi
echo $size
}
has_mounted_part() {
local p
local sysfsdev=$(echo ${1#/dev/} | sed 's:/:!:g')
# parse /proc/mounts for mounted devices
for p in $(awk '$1 ~ /^\/dev\// {gsub("/dev/", "", $1); gsub("/", "!", $1); print $1}' \
/proc/mounts); do
[ "$p" = "$sysfsdev" ] && return 0
[ -e /sys/block/$sysfsdev/$p ] && return 0
done
return 1
}
has_holders() {
local i
# check if device is used by any md devices
for i in $1/holders/* $1/*/holders/*; do
[ -e "$i" ] && return 0
done
return 1
}
is_available_disk() {
local dev=$1
local b=$(echo $p | sed 's:/:!:g')
# check if its a "root" block device and not a partition
[ -e /sys/block/$b ] || return 1
# check so it does not have mounted partitions
has_mounted_part $dev && return 1
# check so its not part of an md setup
if has_holders /sys/block/$b; then
[ -n "$USE_RAID" ] && echo "Warning: $dev is part of a running raid" >&2
return 1
fi
# check so its not an md device
[ -e /sys/block/$b/md ] && return 1
return 0
}
find_disks() {
local p=
for p in $(awk '$1 ~ /[0-9]+/ {print $4}' /proc/partitions); do
is_available_disk $p && echo -n " $p"
done
}
stop_all_raid() {
local rd
for rd in /dev/md*; do
[ -b $rd ] && mdadm --stop $rd
done
}
# install needed programs
init_progs() {
local raidpkg=
[ -n "$USE_RAID" ] && raidpkg="mdadm"
case $ROOTFS in
ext*) fstools=e2fsprogs; mkfs_args="-q";;
xfs) fstools=xfsprogs; mkfs_args="-q";;
btrfs) fstools=btrs-progs; mkfs_args="";;
esac
apk add --quiet sfdisk gptfdisk e2fsprogs lvm2 $raidpkg syslinux $fstools $@
}
show_disk_info() {
local disk= vendor= model= d= size=
for disk in $@; do
local dev=${disk#/dev/}
d=$(echo $dev | sed 's:/:!:g')
vendor=$(cat /sys/block/$d/device/vendor 2>/dev/null)
model=$(cat /sys/block/$d/device/model 2>/dev/null)
size=$(awk '{gb = ($1 * 512)/1000000000; printf "%.1f GB\n", gb}' /sys/block/$d/size 2>/dev/null)
echo " $dev ($size $vendor $model)"
done
}
confirm_erase() {
local answer=
local erasedisks="$@"
if [ "$ERASE_DISKS" = "$erasedisks" ]; then
return 0
fi
echo "WARNING: The following disk(s) will be erased:"
show_disk_info $@
echo -n "WARNING: Erase the above disk(s) and continue? [y/N]: "
read answer
case "$answer" in
y*|Y*) return 0;;
esac
return 1
}
# setup partitions on given disk dev in $1.
# usage: setup_partitions <diskdev> size1,type1 [size2,type2 ...]
setup_partitions() {
local diskdev="$1"
shift
echo "Initializing partitions on $diskdev..."
# new disks does not have an DOS signature in sector 0
# this makes sfdisk complain. We can workaround this by letting
# fdisk create that DOS signature, by just do a "w", a write.
# http://bugs.alpinelinux.org/issues/show/145
echo "w" | fdisk $diskdev >/dev/null
# fix the MBR while here so extlinux can boot
if [ "$(check_scheme $diskdev)" = "dos" ]; then
cat "$MBR" > $diskdev
elif [ "$(check_scheme $diskdev)" = "gpt" ]; then
cat "$GPTMBR" > $diskdev
fi
local start=1M
local line=
# create new partitions
(
for line in "$@"; do
echo "$start,$line"
start=
done
) | sfdisk --quiet $diskdev >/dev/null || return 1
# create device nodes if not exist
mdev -s
}
# find the bootable partition on given disk
find_boot_partition() {
if [ "$(check_scheme $1)" = "dos" ]; then
sfdisk -d $1 | awk '/bootable/ {print $1}'
else
local i=1; while [ $i -le 128 ]; do
if sgdisk $1 -A $i:show |grep "legacy BIOS bootable" 1>/dev/null; then
echo "${ACTIVE_DISK}${i}"
break
fi
i=$(( $i + 1 ))
done
fi
}
# find the partition(s) for LVM
# this is not marked as bootable and is type 8e
find_lvm_partition() {
if [ "$(check_scheme $1)" = "dos" ]; then
local type=8e
sfdisk -d $1 | grep -v bootable | awk "/(Id|type)=$type/ {print \$1}"
else
local part= type=8E00
for part in $(list_partitions); do
if [ "$(find_part_type $part)" = "$type" ]; then
echo "/dev/$part"
break
fi
done
fi
}
# set up optional raid and create filesystem on boot device.
setup_boot_dev() {
local disk= bootdev=
local part=$(for disk in $@; do find_boot_partition $disk; done)
set -- $part
bootdev=$1
[ -z "$bootdev" ] && return 1
echo "Creating file systems..."
if [ -n "$USE_RAID" ]; then
local missing=
local num=$#
if [ $# -eq 1 ]; then
missing="missing"
num=2
fi
# we only use raid level 1 for boot devices
mdadm --create /dev/md0 --level=1 --raid-devices=$num \
--metadata=0.90 --quiet --run $@ $missing || return 1
bootdev=/dev/md0
fi
mkfs.$BOOTFS -q $bootdev
BOOT_DEV="$bootdev"
}
# $1 = index
# $2 = partition type
# $3... = disk devices
find_nth_non_boot_parts() {
local idx=$1
local id=$2
local disk=
shift
shift
for disk in $@; do
sfdisk -d $disk | grep -v bootable \
| awk "/(Id|type)=$id/ { i++; if (i==$idx) print \$1 }"
done
}
setup_non_boot_raid_dev() {
local md_dev=$1
local idx=${md_dev#/dev/md}
shift
local level=1
local missing=
local raid_parts=$(find_nth_non_boot_parts $idx "fd" $@)
set -- $raid_parts
# how many disks do we have?
case $# in
0) echo "No Raid partitions found" >&2; return 1;;
1) level=1; missing="missing"; num=2;;
2) level=1; missing= ; num=2;;
*) level=5; missing= ; num=$#;;
esac
mdadm --create /dev/md$idx --level=$level --raid-devices=$num \
--quiet --run $@ $missing || return 1
}
# setup device for lvm, create raid array if needed
setup_lvm_volume_group() {
local vgname="$1"
shift
local lvmdev=
if [ -n "$USE_RAID" ]; then
setup_non_boot_raid_dev /dev/md1 $@ || return 1
lvmdev=/dev/md1
else
lvmdev=$(find_lvm_partition $1)
fi
# be quiet on success
local errmsg=$(dd if=/dev/zero of=$lvmdev bs=1k count=1 2>&1) \
|| echo "$errmsg"
pvcreate --quiet $lvmdev \
&& vgcreate --quiet $vgname $lvmdev >/dev/null
}
# set up swap on given device(s)
setup_swap_dev() {
local swap_dev=
sed -i -e '/swap/d' /etc/fstab
for swap_dev in "$@"; do
mkswap $swap_dev >/dev/null
echo -e "$swap_dev\tswap\t\tswap\tdefaults 0 0" >> /etc/fstab
done
SWAP_DEVICE="$(uuid_or_device $swap_dev)"
swapon -a
rc-update --quiet add swap boot
}
# setup and enable swap on given volumegroup if needed
setup_lvm_swap() {
local vgname="$1"
local swapname=lv_swap
if [ -z "$SWAP_SIZE" ] || [ "$SWAP_SIZE" -eq 0 ]; then
return
fi
lvcreate --quiet -n $swapname -L ${SWAP_SIZE}MB $vgname
setup_swap_dev /dev/$vgname/$swapname
}
# if /var is mounted, move out data and umount it
reset_var() {
[ -z "$(find_mount_dev /var)" ] && return 0
mkdir /.var
mv /var/* /.var/ 2>/dev/null
umount /var && rm -rf /var && mv /.var /var && rm -rf /var/lost+found
}
# set up /var on given device
setup_var() {
local var_dev="$1"
local varfs=${VARFS}
echo "Creating file systems..."
mkfs.$varfs $var_dev >/dev/null || return 1
sed -i -e '/[[:space:]]\/var[[:space:]]/d' /etc/fstab
echo -e "${var_dev}\t/var\t\t${varfs}\tdefaults 1 2" >> /etc/fstab
mv /var /.var
mkdir /var
mount /var
mv /.var/* /var/
rmdir /.var
/etc/init.d/syslog --quiet restart
setup_mdadm_conf
}
setup_mdadm_conf() {
local mods= mod=
if [ -n "$USE_RAID" ]; then
mdadm --detail --scan > /etc/mdadm.conf
rc-update --quiet add mdadm-raid boot
mods=$(awk '/^raid/ {print $1}' /proc/modules)
for mod in $mods; do
if ! grep -q "^$mod" /etc/modules; then
echo $mod >> /etc/modules
fi
done
fi
}
find_mount_point() {
local device=$1
awk "\$1 == \"$device\" {print \$2}" /proc/mounts | tail -n 1
}
find_mapper_disk() {
cryptsetup status $1|grep device|awk '{ print $2 }'
}
find_luks_vg() {
if is_luks_pv; then
pvs --noheadings /dev/mapper/$CRYPTDM |awk '{ print $2 }'
fi
}
find_part_type() {
local part_number=$(echo $1 |tr -cd '[:digit:]')
local disk=$(echo $1 |tr -d '[:digit:]')
sgdisk "/dev/$disk" -p |sed '1,/Code/d' |awk -v TEST="$part_number" '$1 == TEST { print $6 }'
}
list_partitions() {
echo $(lsblk $1 -no NAME,SIZE,TYPE |iconv -c -f utf-8 -t ascii|tr -d '[:*:]' |awk '$3 = /part/ && $2 != "1K" { print $1}')
}
check_scheme() {
fdisk -l $1 |grep "Disklabel type:" |awk '{ print $3 }'
}
is_luks_pv() {
pvs --noheadings|awk '{ print $1 }'| grep -w $CRYPTDM &>/dev/null
}
find_vg_by_device() {
local device=${1##*/}
local index=$(expr index ${device##*/} "-" - 1)
local vg=${device::$index}
echo $vg
}
find_lv_by_device() {
local device=${1##*/}
local index=$(expr index ${device##*/} "-")
local lv=${device:$index}
echo $lv
}
convert_mapper_to_lvm() {
local mapper=$1
local vg=$(find_vg_by_device $mapper)
local lv=$(find_lv_by_device $mapper)
echo "/dev/$vg/$lv"
}
convert_vg_to_mapper() {
local mapper=${1##*/}
local vg=$(find_luks_vg)
echo "/dev/mapper/$vg-$mapper"
}
convert_lv_to_device() {
local lv=${1##*/} local vg=$(find_luks_vg)
if [ -n "$(find_mount_point /dev/$vg/$lv)" ]; then
echo "/dev/$vg/$lv"
elif [ -n "$(find_mount_point /dev/mapper/$vg-$lv)" ]; then
echo "/dev/mapper/$vg-$lv"
fi
}
setup_crypttab() {
local keysdir=${keysdir:-$mnt/etc/luks-keys}
local keyfile= local answer= local i=
local config=$mnt/etc/conf.d/dmcrypt
if [ -f "$mnt"/etc/crypttab ]; then
mv "$mnt"/etc/crypttab "$mnt"/etc/crypttab.old
fi
if [ $(echo $DMLIST|wc -w) -gt 1 ]; then
read -p "Setup LUKS keyfiles for automatic mounting? [y/N]: " answer
case "$answer" in
y*|Y*) mkdir -p $mnt/etc/conf.d; cp ${config#$mnt} $config
ln -s /etc/init.d/dmcrypt $mnt/etc/runlevels/boot/dmcrypt 2>/dev/null
read -p "Enter directory for keys [ ${keysdir#$mnt} ]: " answer
until -d "$keysdir"; do
if [ -n "$answer" ]; then keysdir=$mnt$answer; fi
mkdir -p $keysdir
done; echo "Creating $keysdir"
for i in $DMLIST; do
if [ "$i" != "$CRYPTDM" ]; then
read -p "Create key for /dev/mapper/$i [y/N]? : " answer
case "$answer" in
y*|Y*) if ! cryptsetup luksDump $(find_mapper_disk $i)|grep ": DISABLED" 1>/dev/null; then
echo "All keyslots full: Choose slot to wipe? [1-7]:"
until $answer -ge 1 2>/dev/null && $answer -le 7 2>/dev/null; do
echo -en "\033[1;31m>>>\033[37m: \033[0m"; read answer
echo -en "\033[1A\033[K" #move the cursor & clear the line
done
cryptsetup luksKillSlot $(find_mapper_disk $i) $answer
fi
dd if=/dev/urandom of=$keysdir/$i bs=1024 count=4
cryptsetup luksAddKey $(find_mapper_disk $i) $keysdir/$i
echo -e "\n## Settings from /sbin/setup-disk" >> $config
echo "target=$i" >> $config
echo "source=$(find_mapper_disk $i)" >> $config
echo "key=${keysdir#$mnt}/$i" >> $config
esac
fi
done
chmod -R 400 $keysdir;chown -R root:root $keysdir
esac
fi
for i in $DMLIST; do
if [ -f "$keysdir/$i" ];then
keyfile="${keysdir#$mnt}/$i"
else
keyfile="none"
fi
# crypttab needs the UUID of the physical device
echo "# $i is on $(find_mapper_disk $i)" >> $mnt/etc/crypttab
echo "$i $(_blkid $(find_mapper_disk $i)|awk '{ print $2 }') $keyfile luks" >> $mnt/etc/crypttab
done
}
data_only_disk_install_lvm() {
local diskdev=
local vgname=vg0
local var_dev=/dev/$vgname/lv_var
local lvm_part_type="8e"
local part_type=$lvm_part_type
local size=
init_progs || return 1
confirm_erase $@ || return 1
if [ "$USE_RAID" ]; then
# the paritition type for raid is "fd"
part_type="fd"
stop_all_raid
fi
for diskdev in "$@"; do
setup_partitions $diskdev "${size}${size:+M},$part_type" || return 1
done
setup_lvm_volume_group $vgname $@ || return 1
setup_lvm_swap $vgname
lvcreate --quiet -n ${var_dev##*/} -l 100%FREE $vgname
setup_mdadm_conf
rc-update add lvm boot
setup_var $var_dev
}
data_only_disk_install() {
local diskdev=
local var_dev=
local var_part_type="83"
local swap_part_type=82
local size=
local swap_dev= var_dev=
init_progs || return 1
confirm_erase $@ || return 1
if [ "$USE_RAID" ]; then
var_part_type="fd"
swap_part_type="fd"
stop_all_raid
fi
for diskdev in "$@"; do
setup_partitions $diskdev \
"${SWAP_SIZE}M,$swap_part_type" \
"${size}${size:+M},$var_part_type" || return 1
done
if [ "$USE_RAID" ]; then
[ $SWAP_SIZE -gt 0 ] && setup_non_boot_raid_dev /dev/md1 $@
setup_non_boot_raid_dev /dev/md2 $@ || return 1
swap_dev=/dev/md1
var_dev=/dev/md2
else
swap_dev=$(find_nth_non_boot_parts 1 82 $@)
var_dev=$(find_nth_non_boot_parts 1 83 $@)
fi
[ $SWAP_SIZE -gt 0 ] && setup_swap_dev $swap_dev
setup_var $var_dev
}
# setup
setup_root() {
local root_dev="$1" boot_dev="$2"
mkfs.$ROOTFS $mkfs_args "$root_dev"
mkdir -p "$SYSROOT"
mount -t $ROOTFS $root_dev "$SYSROOT" || return 1
if [ -n "$boot_dev" ]; then
mkdir -p "$SYSROOT"/boot
mount -t $BOOTFS $boot_dev "$SYSROOT"/boot || return 1
fi
setup_mdadm_conf
install_mounted_root "$SYSROOT" || return 1
unmount_partitions "$SYSROOT"
swapoff -a
echo ""
echo "Installation is complete. Please reboot."
}
native_disk_install_lvm() {
local diskdev= vgname=vg0
local lvm_part_type="8e"
local boot_part_type="83"
local boot_size=${BOOT_SIZE:-100}
local lvm_size=
local root_dev=/dev/$vgname/lv_root
init_progs || return 1
confirm_erase $@ || return 1
if [ -n "$USE_RAID" ]; then
boot_part_type="fd"
lvm_part_type="fd"
stop_all_raid
fi
for diskdev in "$@"; do
setup_partitions $diskdev \
"${boot_size}M,$boot_part_type,*" \
"${lvm_size}${lvm_size:+M},$lvm_part_type" || return 1
done
# will find BOOT_DEV for us
setup_boot_dev $@
setup_lvm_volume_group $vgname $@ || return 1
setup_lvm_swap $vgname
lvcreate --quiet -n ${root_dev##*/} -l 100%FREE $vgname
rc-update add lvm boot
setup_root $root_dev $BOOT_DEV
}
native_disk_install() {
local root_part_type="83" swap_part_type="82" boot_part_type="83"
local boot_size=${BOOT_SIZE:-100}
local swap_size=${SWAP_SIZE}
local root_size=
local root_dev= boot_dev= swap_dev=
init_progs || return 1
confirm_erase $@ || return 1
if [ -n "$USE_RAID" ]; then
boot_part_type="fd"
root_part_type="fd"
swap_part_type="fd"
stop_all_raid
fi
for diskdev in "$@"; do
setup_partitions $diskdev \
"${boot_size}M,$boot_part_type,*" \
"${swap_size}M,$swap_part_type" \
"${root_size}${root_size:+M},$root_part_type" \
|| return 1
done
# will find BOOT_DEV for us
setup_boot_dev $@
if [ "$USE_RAID" ]; then
[ $SWAP_SIZE -gt 0 ] && setup_non_boot_raid_dev /dev/md1 $@
setup_non_boot_raid_dev /dev/md2 $@ || return 1
swap_dev=/dev/md1
root_dev=/dev/md2
else
swap_dev=$(find_nth_non_boot_parts 1 82 $@)
root_dev=$(find_nth_non_boot_parts 1 83 $@)
fi
[ $SWAP_SIZE -gt 0 ] && setup_swap_dev $swap_dev
setup_root $root_dev $BOOT_DEV
}
diskselect_help() {
cat <<__EOF__