postplug/postplug.d/10filesystems

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2011-04-27 19:57:03 +02:00
#!/bin/bash
#
# filesystems - filesystems plugin for postplug
# Copyright (c) 2004-2007 by Davide Madrisan <davide.madrisan@qilinux.it>
# Copyright (c) 2007 by Stefano Cotta Ramusino <stefano.cotta@openmamba.org>
# Copyright (c) 2009-2011 by Silvan Calarco <silvan.calarco@mambasoft.it>
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if [ $UID != 0 ]; then
echo "$0: must be superuser." >&2
exit 1
fi
me="filesystems"
rootmp="/mnt"
. /etc/postplug/postplug.defs
[ -r /etc/sysconfig/postplug ] && . /etc/sysconfig/postplug
fstab="/etc/fstab"
# list of known devices to be scanned
# note: the '/dev/floppy/[0-9]' and '/dev/ub[a-z][0-9]*' entries
# has been removed
devs2scan='/dev/disk/by-uuid/*'
# function get_new_mp_name()
# Find for a usable mount point in the form $rootmp/$1[0-9]*
# or the current mount point if the device `$2' is already mounted
# args:
# $1: mount point suffix (i.e. "cdrom", "floppy", ...)
# $2: the device name (optional)
function get_new_mp_name() {
local mp_suffix="${1/ /%20}"; devfs="$2"
if [ -n "$devfs" ]; then
# catch internal errors
[ -e $devfs ] ||
{ logmsg "$me" $"error: ""device not found ($devfs)"
exit 1; }
# take care of root partition already mounted
[ "`readlink -f /dev/root`" = "$devfs" ] && {
echo "/"
return
}
set -- $(mount | grep "^$(readlink -f $devfs)")
if [ "$3" != "" ]; then
echo "$3"
return
fi
fi
# mountpoint FHS 2.3 compliant
case "$1" in cdrom|floppy) rootmp="/media" ;; esac
for dir in $(find "$rootmp/${mp_suffix}" "$rootmp/${mp_suffix}"[0-9]* \
-maxdepth 0 -type d -printf "%f " 2>/dev/null); do
# if `$dir' is not found in `$fstab' and
# no fs has been manually mounted on this dir...
[[ -z "$(grep "[[:space:]]$rootmp/$dir[[:space:]]" $fstab)" &&
-z "$(mount | grep "[[:space:]]$rootmp/$dir[[:space:]]")" ]] &&
{ # ...we have found a good dir not yet used
echo "$rootmp/$dir"; return; }
done
# no directory available, so a new one must be created
case "$dir" in
"") echo ""$rootmp/${mp_suffix}"" ;;
$mp_suffix|$mp_suffix[0-9]*)
# note: ${mp_suffix}<n> --> $rootmp/${mp_suffix}<n+1>
echo "$rootmp/\
${dir/[0-9]*/}$((${dir/$mp_suffix/}+1))" ;;
esac
}
tmpfstab=`mktemp -q -t $me.XXXXXXXX` ||
{ logmsg "$me" $"error: "$"cannot create temporary files"
exit 1; }
trap "rm -f $tmpfstab" 0 1 2 5 15
# note: remove some directories not FHS 2.3 compliant
#find /mnt/ -type d \( \
# -name floppy -o -name floppy[0-9]\* -o \
# -name cdrom -o -name cdrom[0-9]\* \
# -name cdrecording -o -name cdrecording[0-9]\* \
#\) -print | xargs rmdir 2>/dev/null
if [ "$FS_VFS_UPDATE" != no ]; then
# note: '[ \t]\+/proc[ \t]\+' does not work :(
grep -q "/proc" $fstab 2>/dev/null ||
{ echo "proc /proc proc defaults 0 0" >> $fstab
logmsg "$me" $"added an entry for \`proc' in $fstab"
mount /proc &>/dev/null; }
grep -q "/sys" $fstab 2>/dev/null ||
{ echo "none /sys sysfs defaults 0 0" >> $fstab
logmsg "$me" $"added an entry for \`sys' in $fstab"
mount /sys &>/dev/null; }
grep -q "/dev/pts" $fstab 2>/dev/null ||
{ echo "devpts /dev/pts devpts gid=4,mode=620 0 0" >> $fstab
logmsg "$me" $"added an entry for \`devpts' in $fstab"
mount /dev/pts &>/dev/null; }
# make sure directory /dev/shm still exists
mkdir -p /dev/shm
grep -q "/dev/shm" $fstab 2>/dev/null ||
{ echo "tmpfs /dev/shm tmpfs defaults 0 0" >> $fstab
logmsg "$me" $"added an entry for \`tmpfs' in $fstab"
mount /dev/shm &>/dev/null; }
# probe for USB if the entry were not present in /etc/fstab
if [ -d /proc/bus/usb ]; then
grep -q "/proc/bus/usb" $fstab 2>/dev/null ||
{ echo "usbfs /proc/bus/usb usbfs devgid=30,devmode=664 0 0" >> $fstab
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logmsg "$me" $"added an entry for \`usbfs' in $fstab"
mount /proc/bus/usb &>/dev/null; }
fi
fi
if [ "$FS_NO_DEV_REMOVE" = yes ]; then
[ -e $fstab ] && cp $fstab $tmpfstab || touch $fstab
while read fs mount_point fstype options dump fsck_order ignore; do
case $fs in
/dev/*)
# remove entries and mount points for nonexistent devices
if [[ ! -e $fs ]]; then
sed -i "\@^$fs[ \t]*@d" $fstab 2>/dev/null
logmsg "$me" $"nonexistent entry removed (fs:$fs mp:$mount_point)"
rmdir $mount_point 2>/dev/null
continue
fi
[ ! -e $mount_point -a ${mount_point:0:${#rootmp}} = ${rootmp} ] && mkdir -p $mount_point
## if `/dev/root' exists use it instead of the real device name
#[[ "$mount_point" = "/" && -e /dev/root ]] &&
# { unset devlink; fs="/dev/root"; }
;;
UUID=*)
# remove entries and mount points for nonexistent devices
fs=`echo ${fs/UUID=/}`
if [[ ! -e /dev/disk/by-uuid/$fs ]]; then
sed -i "\@^UUID=$fs[ \t]*@d" $fstab 2>/dev/null
logmsg "$me" $"nonexistent entry removed (fs:$fs mp:$mount_point)"
rmdir $mount_point 2>/dev/null
continue
fi
[ ! -e $mount_point -a ${mount_point:0:${#rootmp}} = ${rootmp} ] && mkdir -p $mount_point
;;
esac
done < $tmpfstab
> $tmpfstab
fi
let "swapon = 0"
# scan for new devices using the searching mask `$devs2scan'
[[ "$FS_PARTS_MOUNT" = "yes" ]] && AUTO_ADD="" || AUTO_ADD="noauto,"
[[ "$FS_PARTS_UPDATE" = no && "$FS_SWAP_UPDATE" = no ]] ||
blkid | grep /dev/sd | while read line; do
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unset dev uuid devline devfstype TYPE UUID LABEL
dev=${line/:*}
devline=${line/*:}
eval $devline
label=$LABEL
devfstype=$TYPE
uuid=$UUID
[ "$label" ] || label="disk"
if [ -e $dev ]; then
# skip removable partitions
[ "`cat /sys/block/${dev:5:3}/removable 2>/dev/null`" = "1" \
-a ! -e /sys/block/${dev:5:3}/device/unload_heads ] && {
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[ "$DEBUG" ] && logmsg "$me" $"skipped device $dev ($uuid): removable"
continue;
}
# skip the current device if already in $fstab
grep -q "^[[:space:]]*$dev[[:space:]]\|^[[:space:]]*UUID=$uuid[[:space:]]" $fstab &&
{ [ "$DEBUG" ] &&
logmsg "$me" $"skipped device $dev ($uuid): already in fstab"
continue; }
[ "$DEBUG" ] && logmsg "$me" $"scanning for $dev ($uuid)..."
# append the new device to $fstab
unset last_mp mount_point fstype options extra_options
check_options="0 0"
case $dev in
/dev/fd[0-9]*|/dev/floppy/[0-9]) # floppy disk drives
[ "$FS_FLOPPY_UPDATE" = yes ] || continue
mount_point=$(get_new_mp_name floppy)
;;
/dev/cdrom[0-9]*) # CDROM devices
[ "$FS_CDROM_UPDATE" = yes ] || continue
# check if the CD is already mounted
devfs="$(readlink -f $dev)"
mount | \
while read fstab_dev skip; do
echo "$(readlink -f $fstab_dev)"
done | grep -qi "$devfs"
# note: the CD is always mounted if automount is enabled
if [ $? -eq 0 ]; then
logmsg "$me" $"ignoring device \`$dev' (already mounted)"
continue
fi
mount_point=$(get_new_mp_name cdrom)
;;
/dev/sd[a-z][0-9]*|\
/dev/hd[a-z][0-9]*|\
/dev/ub[a-z][0-9]*|\
/dev/ub/[a-z]*/part[0-9]*)
## if an USB device is detected add the 'sync' option
#case "$devlink" in
# /dev/ub/[a-z]*/part[0-9]*) extra_options=",sync" ;;
#esac
# IDE, SCSI disks, CDRW, USB devices
devdisk="${dev/[0-9]*/}"
devline=$( blkid $dev 2>/dev/null | sed "s|.*:||")
eval $devline
devfstype=$TYPE
# devfstype=$( /sbin/fdisk -l $devdisk 2>/dev/null | \
# sed -n "/^${dev//\//\\/}/{
# s,\*,,; # remove the star (bootable partition)
# # select the 5th column (fs id)
# s/\([^ ]*[ ]*\)\{4\}\([^ ]*\).*/\2/p}" )
case $devfstype in
linux-swap|swap) # Linux swap
[ "$FS_SWAP_UPDATE" = yes ] || continue
mount_point="swap "
fstype="swap"
options="pri=1"
let "swapon = 1" ;;
ext*|reiserfs|reiser4) # Linux partition
[ "$FS_PARTS_UPDATE" = yes ] || continue
mount_point=$(get_new_mp_name "$label" $dev)
if [[ "$mount_point" = "/" ]]; then
# found a root partition already mounted but not in fstab!
check_options="1 1"
fstype="$(mount | \
sed -n "/ \/ /{s,.*type \([^ ]*\).*,\1,;p}")"
#[[ -e /dev/root ]] &&
# { unset devlink; dev="/dev/root"; }
fi
options="defaults,noatime" ;;
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ntfs|hpfs) # HPFS/NTFS
[ "$FS_PARTS_UPDATE" = yes ] || continue
mount_point=$(get_new_mp_name "$label" $dev)
if [ -x /sbin/mount.ntfs-3g ]; then
fstype="ntfs-3g"
options="${AUTO_ADD}user,gid=32,umask=002"
[ "$LANG" ] && options="$options,locale=$LANG"
else
options="${AUTO_ADD}user,ro,gid=32,umask=002"
fi ;;
fat12|fat16|fat32|FAT|vfat)
[ "$FS_PARTS_UPDATE" = yes ] || continue
# FAT12, FAT16<32M, FAT16, FAT16 [LBA]
# FAT32 [LBA]
mount_point=$(get_new_mp_name "$label" $dev)
options="${AUTO_ADD}user,gid=32,umask=002" ;;
hfs|hfs+|hfsplus)
[ "$FS_PARTS_UPDATE" = yes ] || continue
mount_point=$(get_new_mp_name "$label" $dev)
options="${AUTO_ADD}user" ;;
# f) # W95 Ext'd (LBA)
# [ "$FS_PARTS_UPDATE" = yes ] || continue
# unset nblocks
# nblocks=$( echo $(grep ${dev/\/dev\//} /proc/partitions) | \
# cut -d" " -f3 )
# [ "$nblocks" = 1 ] && continue
# mount_point=$(get_new_mp_name "$label")
# options="${AUTO_ADD}user,gid=32,umask=002" ;;
*) # ignore unknown partitions
[ "$FS_PARTS_UPDATE" = yes ] || continue
logmsg "$me" $"ignoring unknown partition (id:$devfstype)"
continue ;;
esac
;;
*) logmsg "$me" "FIXME: "$"unknown label for case ($dev)"
;;
esac
logmsg "$me" $"\
added device \`$dev' (${uuid}) mount point:\`$mount_point'"
# note: if 'mount_point' is yet undefined there is a bug
if [[ "$mount_point" ]]; then
# default values: fstype="auto", options="noauto,user"
if [ "$uuid" ]; then
echo "# $dev \"$label\"" >> $fstab
echo "\
UUID=${uuid} $mount_point \
${fstype:-"auto"} ${options:-"noauto,user"}${extra_options} ${check_options}" >> $fstab
else
echo "\
$dev $mount_point \
${fstype:-"auto"} ${options:-"noauto,user"}${extra_options} ${check_options}" >> $fstab
fi
# create the mount point and mount the new device
[ "${mount_point:0:${#rootmp}}" = "${rootmp}" ] && {
mkdir -p "$mount_point"
mount "$mount_point"
}
fi
fi
done
[ "$swapon" = 1 ] && swapon -a
exit 0