home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC World Komputer 2010 April
/
PCWorld0410.iso
/
hity wydania
/
Ubuntu 9.10 PL
/
karmelkowy-koliberek-desktop-9.10-i386-PL.iso
/
casper
/
filesystem.squashfs
/
usr
/
share
/
initramfs-tools
/
scripts
/
local
< prev
next >
Wrap
Text File
|
2009-05-07
|
5KB
|
194 lines
# Local filesystem mounting -*- shell-script -*-
# Parameter: device node to check
# Echos fstype to stdout
# Return value: indicates if an fs could be recognized
get_fstype ()
{
local FS FSTYPE FSSIZE RET
FS="${1}"
# blkid has a more complete list of file systems,
# but fstype is more robust
eval $(fstype "${FS}" 2> /dev/null)
if [ -z "${FSTYPE}" ]; then
FSTYPE="unknown"
fi
if [ "$FSTYPE" = "unknown" ] && [ -x /sbin/blkid ]; then
FSTYPE=$(/sbin/blkid -s TYPE -o value "${FS}" 2> /dev/null)
fi
RET=$?
if [ -z "${FSTYPE}" ]; then
FSTYPE="unknown"
fi
echo "${FSTYPE}"
return ${RET}
}
root_missing()
{
ROOT="${1}"
[ ! -e "${ROOT}" ] || ! $(get_fstype "${ROOT}" >/dev/null) || ! /sbin/udevadm settle
}
# Parameter: Where to mount the filesystem
mountroot ()
{
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-top"
run_scripts /scripts/local-top
[ "$quiet" != "y" ] && log_end_msg
# If the root device hasn't shown up yet, give it a little while
# to deal with removable devices
while root_missing "${ROOT}"; do
log_begin_msg "Waiting for root file system..."
# Default delay is 30s
if [ -z "${ROOTDELAY}" ]; then
slumber=30
else
slumber=${ROOTDELAY}
fi
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "TIMEOUT ${slumber}" || true
fi
slumber=$(( ${slumber} * 10 ))
while root_missing "${ROOT}"; do
/bin/sleep 0.1
slumber=$(( ${slumber} - 1 ))
[ ${slumber} -gt 0 ] || break
done
if [ ${slumber} -gt 0 ]; then
log_end_msg 0
else
log_end_msg 1 || true
fi
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "TIMEOUT 15" || true
fi
# Run failure hooks, hoping one of them can fix up the system
# and we can restart the wait loop. If they all fail, abort
# and move on to the panic handler and shell.
if root_missing "${ROOT}" && ! try_failure_hooks; then
break
fi
done
# We've given up, but we'll let the user fix matters if they can
while root_missing "${ROOT}"; do
# give hint about renamed root
case "${ROOT}" in
/dev/hd*)
suffix="${ROOT#/dev/hd}"
major="${suffix%[[:digit:]]}"
major="${major%[[:digit:]]}"
if [ -d "/sys/block/sd${major}" ]; then
echo "WARNING bootdevice may be renamed. Try root=/dev/sd${suffix}"
fi
;;
/dev/sd*)
suffix="${ROOT#/dev/sd}"
major="${suffix%[[:digit:]]}"
major="${major%[[:digit:]]}"
if [ -d "/sys/block/hd${major}" ]; then
echo "WARNING bootdevice may be renamed. Try root=/dev/hd${suffix}"
fi
;;
esac
echo "Gave up waiting for root device. Common problems:"
echo " - Boot args (cat /proc/cmdline)"
echo " - Check rootdelay= (did the system wait long enough?)"
echo " - Check root= (did the system wait for the right device?)"
echo " - Missing modules (cat /proc/modules; ls /dev)"
panic "ALERT! ${ROOT} does not exist. Dropping to a shell!"
done
# Get the root filesystem type if not set
if [ -z "${ROOTFSTYPE}" ]; then
FSTYPE=$(get_fstype "${ROOT}")
else
FSTYPE=${ROOTFSTYPE}
fi
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-premount"
run_scripts /scripts/local-premount
[ "$quiet" != "y" ] && log_end_msg
if [ ${readonly} = y ] && \
[ -z "$LOOP" ]; then
roflag=-r
else
roflag=-w
fi
# FIXME This has no error checking
modprobe ${FSTYPE}
# FIXME This has no error checking
# Mount root
mount ${roflag} -t ${FSTYPE} ${ROOTFLAGS} ${ROOT} ${rootmnt}
mountroot_status="$?"
if [ "$LOOP" ]; then
if [ "$mountroot_status" != 0 ]; then
if [ ${FSTYPE} = ntfs ] || [ ${FSTYPE} = vfat ]; then
panic "
Could not mount the partition ${ROOT}.
This could also happen if the file system is not clean because of an operating
system crash, an interrupted boot process, an improper shutdown, or unplugging
of a removable device without first unmounting or ejecting it. To fix this,
simply reboot into Windows, let it fully start, log in, run 'chkdsk /r', then
gracefully shut down and reboot back into Windows. After this you should be
able to reboot again and resume the installation.
(filesystem = ${FSTYPE}, error code = $mountroot_status)
"
fi
fi
mkdir -p /host
mount -o move ${rootmnt} /host
while [ ! -e "/host/${LOOP#/}" ]; do
panic "ALERT! /host/${LOOP#/} does not exist. Dropping to a shell!"
done
# Get the loop filesystem type if not set
if [ -z "${LOOPFSTYPE}" ]; then
eval $(fstype < "/host/${LOOP#/}")
else
FSTYPE="${LOOPFSTYPE}"
fi
if [ "$FSTYPE" = "unknown" ] && [ -x /sbin/blkid ]; then
FSTYPE=$(/sbin/blkid -s TYPE -o value "/host/${LOOP#/}")
[ -z "$FSTYPE" ] && FSTYPE="unknown"
fi
if [ ${readonly} = y ]; then
roflag=-r
else
roflag=-w
fi
# FIXME This has no error checking
modprobe loop
modprobe ${FSTYPE}
# FIXME This has no error checking
mount ${roflag} -o loop -t ${FSTYPE} ${LOOPFLAGS} "/host/${LOOP#/}" ${rootmnt}
if [ -d ${rootmnt}/host ]; then
mount -o move /host ${rootmnt}/host
fi
fi
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/local-bottom"
run_scripts /scripts/local-bottom
[ "$quiet" != "y" ] && log_end_msg
}