Merging casper 1.190.

[live-boot-grml.git] / scripts / live

diff --git a/scripts/live b/scripts/live
index 8ad11bb..3bb31c9 100755 (executable)
--- a/scripts/live
+++ b/scripts/live
@@ -20,6 +20,7 @@ USERFULLNAME="Live user"
 HOSTNAME="host"
 
 mkdir -p "${mountpoint}"
+tried="/tmp/tried"
 
 # Create /etc/mtab for debug purpose and future syncs
 if [ ! -d /etc ]
@@ -665,7 +666,7 @@ is_nice_device ()
 {
        sysfs_path="${1#/sys}"
 
-       if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-|platform-mmc)"
+       if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-|platform-orion-ehci|platform-mmc|platform-mxsdhci|)"
        then
                return 0
        elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$'
@@ -1081,14 +1082,23 @@ try_snap ()
                        RES=$?
                else
                        # cpio.gz snapshot
-                       cd "${snap_mount}"
-                       zcat "${snapback}/${snapfile}" | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1
-                       RES=$?
-                       if [ "${RES}" != "0" ]
+
+                       # Unfortunately klibc's cpio is incompatible with the
+                       # rest of the world; everything else requires -u -d,
+                       # while klibc doesn't implement them. Try to detect
+                       # whether it's in use.
+                       cpiopath="$(which cpio)" || true
+                       if [ "$cpiopath" ] && grep -aq /lib/klibc "$cpiopath"
+                       then
+                               cpioargs=
+                       else
+                               cpioargs='--unconditional --make-directories'
+                       fi
+
+                       if ! (cd "${snap_mount}" && zcat "${snapback}/${snapfile}" | cpio $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse 2>/dev/null)
                        then
-                               log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories\""
+                               log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | cpio $cpioargs --extract --preserve-modification-time --no-absolute-filenames --sparse\""
                        fi
-                       cd "${OLDPWD}"
                fi
 
                umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
@@ -1129,7 +1139,7 @@ try_snap ()
                return 1
        fi
 
-       echo "export ${snap_type}SNAP="${snap_mount}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
+       echo "export ${snap_type}SNAP="/cow${snap_mount#$rootmnt}":${snapdev}:${snapfile}" >> /etc/live.conf # for resync on reboot/halt
        return 0
 }
 
@@ -1419,6 +1429,8 @@ setup_unionfs ()
                        case "${UNIONTYPE}" in
                                unionfs-fuse)
                                        (ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${exposedrootfs}${dir} "${rootmnt}${dir}" || panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow=RW:${exposedrootfs}${dir}")
+                                       mkdir -p /dev/.initramfs/varrun
+                                       pidof unionfs-fuse >> /dev/.initramfs/varrun/sendsigs.omit || true
                                        ;;
 
                                *)
@@ -1430,6 +1442,8 @@ setup_unionfs ()
                case "${UNIONTYPE}" in
                        unionfs-fuse)
                                (ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${rofsstring} "${rootmnt}" || panic "mount ${UNIONTYPE} on ${rootmnt} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow:RW:${rofsstring}")
+                               mkdir -p /dev/.initramfs/varrun
+                               pidof unionfs-fuse >> /dev/.initramfs/varrun/sendsigs.omit || true
                                ;;
 
                        *)
@@ -1506,12 +1520,31 @@ check_dev ()
        # support for fromiso=.../isofrom=....
        if [ -n "$FROMISO" ]
        then
-               mkdir /isofrom
-               ISO_DEVICE="$(echo $FROMISO | sed 's|\(/dev/[a-z]*[0-9]*\).*|\1|')"
-               mount "$ISO_DEVICE" /isofrom
-               ISO_NAME="$(echo $FROMISO | sed 's|/dev/[a-z]*[0-9]*/||')"
-               loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
-               devname="${loopdevname}"
+               ISO_DEVICE=$(dirname $FROMISO)
+               if ! [ -b $ISO_DEVICE ]
+               then
+                       # to support unusual device names like /dev/cciss/c0d0p1
+                       # as well we have to identify the block device name, let's
+                       # do that for up to 15 levels
+                       i=15
+                       while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
+                       do
+                               ISO_DEVICE=$(dirname ${ISO_DEVICE})
+                               [ -b "$ISO_DEVICE" ] && break
+                               i=$(($i -1))
+                       done
+               fi
+
+               if [ "$ISO_DEVICE" = "/" ]
+               then
+                       echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live.log
+               else
+                       mkdir /isofrom
+                       mount "$ISO_DEVICE" /isofrom
+                       ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
+                       loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
+                       devname="${loopdevname}"
+               fi
        fi
 
        if [ -z "${devname}" ]
@@ -1531,6 +1564,7 @@ check_dev ()
                        umount $mountpoint
                fi
        fi
+       [ -e "$devname" ] || continue
 
        if [ -n "${LIVE_MEDIA_OFFSET}" ]
        then
@@ -1542,7 +1576,10 @@ check_dev ()
 
        if is_supported_fs ${fstype}
        then
+               devuid=$(blkid -o value -s UUID "$devname")
+               [ -n "$devuid" ] && grep -qs "\<$devuid\>" $tried && continue
                mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
+               [ -n "$devuid" ] && echo "$devuid" >> $tried
 
                if is_live_path ${mountpoint} && \
                        ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
@@ -1642,6 +1679,7 @@ find_livefs ()
        for sysblock in $devices_to_scan
        do
                devname=$(sys2dev "${sysblock}")
+               [ -e "$devname" ] || continue
                fstype=$(get_fstype "${devname}")
 
                if /lib/udev/cdrom_id ${devname} > /dev/null
@@ -1841,4 +1879,8 @@ mountroot ()
        exec 2>&7 7>&-
        kill ${tailpid}
        [ -w "${rootmnt}/var/log/" ] && cp live.log "${rootmnt}/var/log/" 2>/dev/null
+       if [ -f /etc/live.conf ]
+       then
+               cp /etc/live.conf "${rootmnt}/etc/"
+       fi
 }