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hw-detect
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2009-10-28
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#!/bin/sh
set -e
. /usr/share/debconf/confmodule
#set -x
if [ -z "$1" ]; then
PROGRESSBAR=hw-detect/detect_progress_step
else
PROGRESSBAR=$1
fi
NEWLINE="
"
MISSING_MODULES_LIST=""
SUBARCH="$(archdetect)"
finish_install=/usr/lib/finish-install.d/30hw-detect
LOAD_IDE=""
if db_get hw-detect/load-ide && [ "$RET" = true ]; then
LOAD_IDE=1
fi
# Check for virtio devices
if [ -d /sys/bus/pci/devices ] && \
grep -q 0x1af4 /sys/bus/pci/devices/*/vendor 2>/dev/null && \
! grep -q ^virtio_ /proc/modules; then
anna-install virtio-modules || true
fi
if [ -x /sbin/depmod ]; then
depmod -a > /dev/null 2>&1 || true
fi
log () {
logger -t hw-detect "$@"
}
is_not_loaded() {
! ((cut -d" " -f1 /proc/modules | grep -q "^$1\$") || \
(cut -d" " -f1 /proc/modules | sed -e 's/_/-/g' | grep -q "^$1\$"))
}
is_available () {
[ "$(modprobe -l $1)" ] || return 1
}
# Module as first parameter, description of device the second.
missing_module () {
if ! in_list "$1" "$MISSING_MODULES_LIST"; then
if [ -n "$MISSING_MODULES_LIST" ]; then
MISSING_MODULES_LIST="$MISSING_MODULES_LIST, "
fi
MISSING_MODULES_LIST="$MISSING_MODULES_LIST$1 ($2)"
fi
}
# The list can be delimited with spaces or spaces and commas.
in_list() {
echo "$2" | grep -q "\(^\| \)$1\(,\| \|$\)"
}
snapshot_devs() {
echo -n `grep : /proc/net/dev | cut -d':' -f1`
}
compare_devs() {
local olddevs="$1"
local devs="$2"
local dev newdevs
newdevs=
for dev in $devs; do
if ! echo " $olddevs " | grep -q " $dev "; then
newdevs="${newdevs:+$newdevs }$dev"
fi
done
echo "$newdevs"
}
load_module() {
local module="$1"
local cardname="$2"
local devs=""
local olddevs=""
local newdev=""
old=`cat /proc/sys/kernel/printk`
echo 0 > /proc/sys/kernel/printk
devs="$(snapshot_devs)"
if log-output -t hw-detect modprobe -v "$module"; then
olddevs="$devs"
devs="$(snapshot_devs)"
newdevs="$(compare_devs "$olddevs" "$devs")"
# Make sure space is used as a delimiter.
IFS_SAVE="$IFS"
IFS=" "
if [ -n "$newdevs" -a -n "$cardname" ]; then
mkdir -p /etc/network
for dev in $newdevs; do
echo "${dev}:${cardname}" >> /etc/network/devnames
done
fi
IFS="$IFS_SAVE"
else
log "Error loading '$module'"
if [ "$module" != floppy ] && [ "$module" != ide-floppy ] && \
[ "$module" != ide-cd ]; then
db_subst hw-detect/modprobe_error CMD_LINE_PARAM "modprobe -v $module"
db_input medium hw-detect/modprobe_error || [ $? -eq 30 ]
db_go
fi
fi
echo $old > /proc/sys/kernel/printk
}
# Some pci chipsets are needed or there can be DMA or other problems.
get_ide_chipset_info() {
for ide_module in $(find /lib/modules/*/kernel/drivers/ide/pci/ -type f 2>/dev/null); do
if [ -e $ide_module ]; then
baseidemod=$(echo $ide_module | sed 's/\.ko$//; s/.*\///')
echo "$baseidemod:IDE chipset support"
fi
done
}
# Return list of lines formatted "module:Description"
get_detected_hw_info() {
if [ "${SUBARCH%%/*}" = powerpc ]; then
discover-mac-io
if [ "$SUBARCH" = powerpc/chrp_rs6k ] || \
[ "$SUBARCH" = powerpc/chrp_ibm ]; then
discover-ibm
fi
fi
if [ "${SUBARCH%%/*}" = sparc ]; then
discover-sbus
fi
if [ -d /proc/bus/usb ]; then
echo "usb-storage:USB storage"
fi
}
# NewWorld PowerMacs don't want floppy or ide-floppy, and on some models
# (e.g. G5s) the kernel hangs when loading the module.
get_floppy_info() {
case $SUBARCH in
powerpc/powermac_newworld) ;;
*) echo "floppy:Linux Floppy" ;;
esac
}
get_ide_floppy_info() {
case $SUBARCH in
powerpc/powermac_newworld) ;;
*) echo "ide-floppy:Linux IDE floppy" ;;
esac
}
get_rtc_info() {
# On i386, this gets loaded by hotplug through isapnp, but that
# doesn't work on amd64.
case $SUBARCH in
amd64/*) register-module rtc ;;
esac
}
# Manually load modules to enable things we can't detect.
# XXX: This isn't the best way to do this; we should autodetect.
# The order of these modules are important.
get_manual_hw_info() {
if [ "$LOAD_IDE" ]; then
get_floppy_info
get_ide_chipset_info
echo "ide-generic:Linux IDE support"
get_ide_floppy_info
echo "ide-disk:Linux ATA DISK"
echo "ide-cd:Linux ATAPI CD-ROM"
fi
get_rtc_info
case $SUBARCH in
powerpc/ps3)
echo "ps3rom:PS3 internal CD-ROM drive"
echo "ps3disk:PS3 internal disk drive"
echo "ps3_gelic:PS3 Gigabit Ethernet"
register-module snd_ps3
;;
esac
}
# Based on syslog from #486298
megaraid_complete() {
dmesg | grep -Eq "megaraid mbox: (Wait for 0 commands to complete|reset sequence completed sucessfully)"
}
wait_megaraid_complete() {
local wait=300
if megaraid_complete; then
return 0
fi
sleep 10 # Early initialization phase
if dmesg | grep -q "megaraid mbox: Wait for [0-9]*[1-9] commands to complete"; then
log "Megaraid initialization: waiting for reset to complete"
while [ $wait -gt 0 ]; do
sleep 1
if megaraid_complete; then
log "Megaraid initialization: reset complete"
sleep 1
break
fi
wait=$(($wait - 1))
done
if [ $wait -eq 0 ]; then
log "Megaraid initialization: failed to complete reset!"
fi
fi
}
# Should be greater than the number of kernel modules we can reasonably
# expect it will ever need to load.
MAX_STEPS=1000
OTHER_STEPS=5
# Use 1/10th of the progress bar for the non-module-load steps.
OTHER_STEPSIZE=$(expr $MAX_STEPS / 10 / $OTHER_STEPS)
db_progress START 0 $MAX_STEPS $PROGRESSBAR
db_progress INFO hw-detect/detect_progress_step
# TODO: Can possibly be removed if udev will load yenta_socket automatically
# Load yenta_socket, if hardware is available, for Cardbus cards.
if [ -d /sys/bus/pci/devices ] && \
grep -q 0x060700 /sys/bus/pci/devices/*/class 2>/dev/null && \
! grep -q ^yenta_socket /proc/modules; then
db_subst hw-detect/load_progress_step CARDNAME "Cardbus bridge"
db_subst hw-detect/load_progress_step MODULE "yenta_socket"
db_progress INFO hw-detect/load_progress_step
log "Detected Cardbus bridge, loading yenta_socket"
load_module yenta_socket
# Ugly hack, but what's the alternative?
sleep 3 || true
fi
# If using real hotplug, re-run the rc scripts to pick up new modules.
# TODO: this just loads modules itself, rather than handing back a list
# Since we've just run depmod, new modules might be available, so we
# must trigger as well as settle.
update-dev
ALL_HW_INFO=$(get_detected_hw_info; get_manual_hw_info)
db_progress STEP $OTHER_STEPSIZE
# Remove modules that are already loaded or not available, and construct
# the list for the question.
LIST=""
PROCESSED=""
AVAIL_MODULES="$(find /lib/modules/$(uname -r)/ | sed 's!.*/!!' | cut -d . -f 1)"
LOADED_MODULES="$(cut -d " " -f 1 /proc/modules) $(cut -d " " -f 1 /proc/modules | sed -e 's/_/-/g')"
IFS_SAVE="$IFS"
IFS="$NEWLINE"
for device in $ALL_HW_INFO; do
module="${device%%:*}"
cardname="${device##*:}"
if [ "$module" != "ignore" -a "$module" != "" ] &&
! in_list "$module" "$LOADED_MODULES" &&
! in_list "$module" "$PROCESSED"
then
if [ -z "$cardname" ]; then
cardname="[Unknown]"
fi
if in_list "$module" "$AVAIL_MODULES"; then
LIST="${LIST:+$LIST, }$module ($(echo "$cardname" | sed 's/,/ /g'))"
PROCESSED="$PROCESSED $module"
else
missing_module "$module" "$cardname"
fi
fi
done
IFS="$IFS_SAVE"
db_progress STEP $OTHER_STEPSIZE
if [ "$LIST" ]; then
# Ask which modules to install.
db_subst hw-detect/select_modules list "$LIST"
db_set hw-detect/select_modules "$LIST"
db_input medium hw-detect/select_modules || true
db_go || exit 10 # back up
db_get hw-detect/select_modules
LIST="$RET"
fi
list_to_lines() {
echo "$LIST" | sed 's/, /\n/g'
}
# Work out amount to step per module load. expr rounds down, so
# it may not get quite to 100%, but will at least never exceed it.
MODULE_STEPS=$(expr \( $MAX_STEPS - \( $OTHER_STEPS \* $OTHER_STEPSIZE \) \))
if [ "$LIST" ]; then
MODULE_STEPSIZE=$(expr $MODULE_STEPS / $(list_to_lines | wc -l))
fi
IFS="$NEWLINE"
for device in $(list_to_lines); do
module="${device%% *}"
cardname="`echo $device | cut -d'(' -f2 | sed 's/)$//'`"
# Restore IFS after extracting the fields.
IFS="$IFS_SAVE"
if [ -z "$module" ] ; then module="[Unknown]" ; fi
if [ -z "$cardname" ] ; then cardname="[Unknown]" ; fi
log "Detected module '$module' for '$cardname'"
if is_not_loaded "$module"; then
db_subst hw-detect/load_progress_step CARDNAME "$cardname"
db_subst hw-detect/load_progress_step MODULE "$module"
db_progress INFO hw-detect/load_progress_step
if [ "$cardname" = "[Unknown]" ]; then
load_module "$module"
else
load_module "$module" "$cardname"
fi
fi
db_progress STEP $MODULE_STEPSIZE
IFS="$NEWLINE"
done
IFS="$IFS_SAVE"
if [ -z "$LIST" ]; then
db_progress STEP $MODULE_STEPS
fi
# Load ide-generic and check if that results in new block devices.
# If so, make sure it is added to the initrd for the installed system.
# Note: this may need to be done for more systems than just systems
# that have an ISA bus, but that seems like a good start; it could also
# be done unconditionally.
if [ -z "$LOAD_IDE" ] && is_not_loaded ide-generic && \
[ -e /sys/bus/isa ] && is_available ide-generic; then
update-dev --settle
blockdev_count=$(ls /sys/block | wc -w)
log "ISA bus detected; loading module 'ide-generic'"
load_module ide-generic
update-dev --settle
if [ $(ls /sys/block | wc -w) -gt $blockdev_count ]; then
log "New devices detected after loading ide-generic"
# This will tell initramfs-tools to load ide-generic
kopts=
if db_get debian-installer/add-kernel-opts && [ "$RET" ]; then
kopts="$RET"
fi
if ! echo "$kopt" | grep -Eq "(^| )all_generic_ide( |$)"; then
db_set debian-installer/add-kernel-opts \
"${kopts:+$kopts }all_generic_ide"
fi
fi
fi
if ! is_not_loaded ohci1394 || ! is_not_loaded firewire-ohci; then
# if firewire was found, try to enable firewire cd support
if is_not_loaded sbp2 && is_not_loaded firewire-sbp2 && \
is_available scsi_mod; then
sbp2module=
if is_available firewire-sbp2; then
sbp2module=firewire-sbp2
elif is_available sbp2; then
sbp2module=sbp2
fi
if [ -n "$sbp2module" ]; then
db_subst hw-detect/load_progress_step CARDNAME "FireWire CDROM support"
db_subst hw-detect/load_progress_step MODULE "$sbp2module"
db_progress INFO hw-detect/load_progress_step
load_module "$sbp2module"
register-module "$sbp2module"
else
missing_module firewire-sbp2 "FireWire CDROM"
fi
fi
db_progress STEP $OTHER_STEPSIZE
fi
# Always load the printer driver on i386 and amd64; it's hard to autodetect.
case $SUBARCH in
i386/*|amd64/*)
register-module lp
;;
esac
apply_pcmcia_resource_opts() {
local config_opts=/etc/pcmcia/config.opts
# Idempotency
if ! [ -f ${config_opts}.orig ]; then
cp $config_opts ${config_opts}.orig
fi
cp ${config_opts}.orig $config_opts
local mode=""
local rmode=""
local type=""
local value=""
while [ -n "$1" ] && [ -n "$2" ] && [ -n "$3" ]; do
if [ "$1" = exclude ]; then
mode=exclude
rmode=include
shift
elif [ "$1" = include ]; then
mode=include
rmode=exclude
shift
fi
type="$1"
shift
value="$1"
shift
if grep -q "^$rmode $type $value\$" $config_opts; then
sed "s/^$rmode $type $value\$/$mode $type $value/" \
$config_opts >${config_opts}.new
mv ${config_opts}.new $config_opts
else
echo "$mode $type $value" >>$config_opts
fi
done
}
# get pcmcia running if possible
PCMCIA_INIT=
if [ -x /etc/init.d/pcmciautils ]; then
PCMCIA_INIT=/etc/init.d/pcmciautils
fi
if [ "$PCMCIA_INIT" ]; then
if is_not_loaded pcmcia_core; then
db_input medium hw-detect/start_pcmcia || true
# GTK frontend: include question about resources in dialog
if [ "$DEBIAN_FRONTEND" = "gtk" ]; then
db_input low hw-detect/pcmcia_resources || true
fi
db_go || true
# Other frontends: only ask about resources if PCMCIA was selected
if [ "$DEBIAN_FRONTEND" != "gtk" ]; then
db_get hw-detect/start_pcmcia || true
if [ "$RET" = true ]; then
db_input low hw-detect/pcmcia_resources || true
db_go || true
fi
fi
if db_get hw-detect/pcmcia_resources && [ "$RET" ]; then
apply_pcmcia_resource_opts $RET
fi
fi
if db_get hw-detect/start_pcmcia && [ "$RET" = true ]; then
db_progress INFO hw-detect/pcmcia_step
$PCMCIA_INIT start 2>&1 | log
db_progress STEP $OTHER_STEPSIZE
fi
fi
have_pcmcia=0
if ls /sys/class/pcmcia_socket/* >/dev/null 2>&1; then
if db_get hw-detect/start_pcmcia && [ "$RET" = false ]; then
have_pcmcia=0
else
have_pcmcia=1
fi
fi
# find Cardbus network cards
cardbus_check_netdev()
{
local socket="$1"
local netdev="$2"
if [ -L $netdev/device ] && \
[ -d $socket/device/$(basename $(readlink $netdev/device)) ]; then
echo $(basename $netdev) >> /etc/network/devhotplug
fi
}
if ls /sys/class/pcmcia_socket/* >/dev/null 2>&1; then
for socket in /sys/class/pcmcia_socket/*; do
for netdev in /sys/class/net/*; do
cardbus_check_netdev $socket $netdev
done
done
fi
# Try to do this only once..
if [ "$have_pcmcia" -eq 1 ] && \
! grep -q pcmciautils /var/lib/apt-install/queue 2>/dev/null; then
log "Detected PCMCIA, installing pcmciautils."
apt-install pcmciautils || true
if db_get hw-detect/pcmcia_resources && [ -n "$RET" ]; then
echo "mkdir /target/etc/pcmcia 2>/dev/null || true" \
>>$finish_install
echo "cp /etc/pcmcia/config.opts /target/etc/pcmcia/config.opts" \
>>$finish_install
fi
fi
# Install udev into target
apt-install udev || true
# Install usbutils
if [ -d /sys/bus/usb ]; then
apt-install usbutils || true
fi
# If hardware has support for pmu, install pbbuttonsd
if [ -d /sys/class/misc/pmu/ ]; then
apt-install pbbuttonsd || true
fi
# Install eject?
if [ -n "$(list-devices cd; list-devices maybe-usb-floppy)" ]; then
apt-install eject || true
fi
# Install optimised libc based on CPU type
case "$(udpkg --print-architecture)" in
armel)
if grep -q '^Features.* vfp\>' /proc/cpuinfo; then
apt-install libc6-vfp || true
fi
;;
i386)
case "$(grep '^cpu family' /proc/cpuinfo | head -n1 | cut -d: -f2)" in
" 6"|" 15")
# intel 686 or Amd k6.
apt-install libc6-i686 || true
;;
esac
;;
sparc)
if grep -q '^type.*: sun4u' /proc/cpuinfo ; then
# sparc v9 or v9b
if grep -q '^cpu.*: .*UltraSparc III' /proc/cpuinfo; then
apt-install libc6-sparcv9b || true
else
apt-install libc6-sparcv9 || true
fi
fi
;;
esac
# Install PS3 utilities
case $SUBARCH in
powerpc/ps3)
apt-install ps3pf-utils || true
;;
esac
# Install Cell utilities
case $SUBARCH in
powerpc/ps3|powerpc/cell)
apt-install elfspe2 || true
;;
esac
# Some hardware may need extra time to initialize:
# megaraid_mbox hardware RAID
if lsmod | grep -q megaraid_mbox; then
db_progress INFO hw-detect/hardware_init_step
wait_megaraid_complete
# Add rootdelay boot option for target system
if [ -z "$LOAD_IDE" ]; then
kopts=
if db_get debian-installer/add-kernel-opts && [ "$RET" ]; then
kopts="$RET"
# remove any existing rootdelay= option
kopts="$(echo "$kopts" | sed -r "s/(^| )rootdelay=[^ ]*//")"
fi
db_set debian-installer/add-kernel-opts \
"${kopts:+$kopts }rootdelay=10"
fi
fi
db_progress STEP $OTHER_STEPSIZE
db_progress SET $MAX_STEPS
db_progress STOP
if [ -n "$MISSING_MODULES_LIST" ]; then
log "Missing modules '$MISSING_MODULES_LIST"
fi
check-missing-firmware
sysfs-update-devnames
# Let userspace /dev tools rescan the devices
update-dev --settle
exit 0