base-files: sysupgrade cleanup
Some functions only used by stage2 are moved there from common.sh. One piece that could still use more cleanup is platform_pre_upgrade: many targets reference files from there are aren't available in the ramfs, so we need to evaluate it before the switch; conversely, flash writes happen in that function on some targets. Targets that do the latter should be fixed eventually to use platform_do_upgrade for that purpose. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This commit is contained in:
Matthias Schiffer
parent
218af1957e
commit
b2adb9a7b5
@ -30,106 +30,6 @@ install_bin() { # <file> [ <symlink> ... ]
|
||||
}; done
|
||||
}
|
||||
|
||||
supivot() { # <new_root> <old_root>
|
||||
/bin/mount | grep "on $1 type" 2>&- 1>&- || /bin/mount -o bind $1 $1
|
||||
mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
|
||||
/bin/mount -o noatime,move /proc $1/proc && \
|
||||
pivot_root $1 $1$2 || {
|
||||
/bin/umount -l $1 $1
|
||||
return 1
|
||||
}
|
||||
|
||||
/bin/mount -o noatime,move $2/sys /sys
|
||||
/bin/mount -o noatime,move $2/dev /dev
|
||||
/bin/mount -o noatime,move $2/tmp /tmp
|
||||
/bin/mount -o noatime,move $2/overlay /overlay 2>&-
|
||||
return 0
|
||||
}
|
||||
|
||||
run_ramfs() { # <command> [...]
|
||||
install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount \
|
||||
/sbin/pivot_root /sbin/reboot /bin/sync /bin/dd /bin/grep \
|
||||
/bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" /bin/dd \
|
||||
/bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump \
|
||||
/bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc \
|
||||
/bin/cut /usr/bin/printf /bin/sync /bin/mkdir /bin/rmdir \
|
||||
/bin/rm /usr/bin/basename /bin/kill /bin/chmod /usr/bin/find \
|
||||
/bin/mknod
|
||||
|
||||
install_bin /sbin/mtd
|
||||
install_bin /sbin/mount_root
|
||||
install_bin /sbin/snapshot
|
||||
install_bin /sbin/snapshot_tool
|
||||
install_bin /usr/sbin/ubiupdatevol
|
||||
install_bin /usr/sbin/ubiattach
|
||||
install_bin /usr/sbin/ubiblock
|
||||
install_bin /usr/sbin/ubiformat
|
||||
install_bin /usr/sbin/ubidetach
|
||||
install_bin /usr/sbin/ubirsvol
|
||||
install_bin /usr/sbin/ubirmvol
|
||||
install_bin /usr/sbin/ubimkvol
|
||||
install_bin /usr/sbin/partx
|
||||
install_bin /usr/sbin/losetup
|
||||
install_bin /usr/sbin/mkfs.ext4
|
||||
for file in $RAMFS_COPY_BIN; do
|
||||
install_bin ${file//:/ }
|
||||
done
|
||||
install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
|
||||
|
||||
[ -L "/lib64" ] && ln -s /lib $RAM_ROOT/lib64
|
||||
|
||||
supivot $RAM_ROOT /mnt || {
|
||||
echo "Failed to switch over to ramfs. Please reboot."
|
||||
exit 1
|
||||
}
|
||||
|
||||
/bin/mount -o remount,ro /mnt
|
||||
/bin/umount -l /mnt
|
||||
|
||||
grep /overlay /proc/mounts > /dev/null && {
|
||||
/bin/mount -o noatime,remount,ro /overlay
|
||||
/bin/umount -l /overlay
|
||||
}
|
||||
|
||||
# spawn a new shell from ramdisk to reduce the probability of cache issues
|
||||
exec /bin/busybox ash -c "$*"
|
||||
}
|
||||
|
||||
kill_remaining() { # [ <signal> [ <loop> ] ]
|
||||
local sig="${1:-TERM}"
|
||||
local loop="${2:-0}"
|
||||
local run=true
|
||||
local stat
|
||||
|
||||
echo -n "Sending $sig to remaining processes ... "
|
||||
|
||||
while $run; do
|
||||
run=false
|
||||
for stat in /proc/[0-9]*/stat; do
|
||||
[ -f "$stat" ] || continue
|
||||
|
||||
local pid name state ppid rest
|
||||
read pid name state ppid rest < $stat
|
||||
name="${name#(}"; name="${name%)}"
|
||||
|
||||
# Skip PID1, ourself and our children
|
||||
[ $pid -ne 1 -a $pid -ne $$ -a $ppid -ne $$ ] || continue
|
||||
|
||||
local cmdline
|
||||
read cmdline < /proc/$pid/cmdline
|
||||
|
||||
# Skip kernel threads
|
||||
[ -n "$cmdline" ] || continue
|
||||
|
||||
echo -n "$name "
|
||||
kill -$sig $pid 2>/dev/null
|
||||
|
||||
[ $loop -eq 1 ] && run=true
|
||||
done
|
||||
done
|
||||
echo ""
|
||||
}
|
||||
|
||||
run_hooks() {
|
||||
local arg="$1"; shift
|
||||
for func in "$@"; do
|
||||
|
||||
@ -24,6 +24,104 @@ export CONF_TAR=/tmp/sysupgrade.tgz
|
||||
include /lib/upgrade
|
||||
|
||||
|
||||
supivot() { # <new_root> <old_root>
|
||||
/bin/mount | grep "on $1 type" 2>&- 1>&- || /bin/mount -o bind $1 $1
|
||||
mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
|
||||
/bin/mount -o noatime,move /proc $1/proc && \
|
||||
pivot_root $1 $1$2 || {
|
||||
/bin/umount -l $1 $1
|
||||
return 1
|
||||
}
|
||||
|
||||
/bin/mount -o noatime,move $2/sys /sys
|
||||
/bin/mount -o noatime,move $2/dev /dev
|
||||
/bin/mount -o noatime,move $2/tmp /tmp
|
||||
/bin/mount -o noatime,move $2/overlay /overlay 2>&-
|
||||
return 0
|
||||
}
|
||||
|
||||
switch_to_ramfs() {
|
||||
install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount \
|
||||
/sbin/pivot_root /sbin/reboot /bin/sync /bin/dd /bin/grep \
|
||||
/bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" /bin/dd \
|
||||
/bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump \
|
||||
/bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc \
|
||||
/bin/cut /usr/bin/printf /bin/sync /bin/mkdir /bin/rmdir \
|
||||
/bin/rm /usr/bin/basename /bin/kill /bin/chmod /usr/bin/find \
|
||||
/bin/mknod
|
||||
|
||||
install_bin /sbin/mtd
|
||||
install_bin /sbin/mount_root
|
||||
install_bin /sbin/snapshot
|
||||
install_bin /sbin/snapshot_tool
|
||||
install_bin /usr/sbin/ubiupdatevol
|
||||
install_bin /usr/sbin/ubiattach
|
||||
install_bin /usr/sbin/ubiblock
|
||||
install_bin /usr/sbin/ubiformat
|
||||
install_bin /usr/sbin/ubidetach
|
||||
install_bin /usr/sbin/ubirsvol
|
||||
install_bin /usr/sbin/ubirmvol
|
||||
install_bin /usr/sbin/ubimkvol
|
||||
install_bin /usr/sbin/partx
|
||||
install_bin /usr/sbin/losetup
|
||||
install_bin /usr/sbin/mkfs.ext4
|
||||
for file in $RAMFS_COPY_BIN; do
|
||||
install_bin ${file//:/ }
|
||||
done
|
||||
install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
|
||||
|
||||
[ -L "/lib64" ] && ln -s /lib $RAM_ROOT/lib64
|
||||
|
||||
supivot $RAM_ROOT /mnt || {
|
||||
echo "Failed to switch over to ramfs. Please reboot."
|
||||
exit 1
|
||||
}
|
||||
|
||||
/bin/mount -o remount,ro /mnt
|
||||
/bin/umount -l /mnt
|
||||
|
||||
grep /overlay /proc/mounts > /dev/null && {
|
||||
/bin/mount -o noatime,remount,ro /overlay
|
||||
/bin/umount -l /overlay
|
||||
}
|
||||
}
|
||||
|
||||
kill_remaining() { # [ <signal> [ <loop> ] ]
|
||||
local sig="${1:-TERM}"
|
||||
local loop="${2:-0}"
|
||||
local run=true
|
||||
local stat
|
||||
|
||||
echo -n "Sending $sig to remaining processes ... "
|
||||
|
||||
while $run; do
|
||||
run=false
|
||||
for stat in /proc/[0-9]*/stat; do
|
||||
[ -f "$stat" ] || continue
|
||||
|
||||
local pid name state ppid rest
|
||||
read pid name state ppid rest < $stat
|
||||
name="${name#(}"; name="${name%)}"
|
||||
|
||||
# Skip PID1, ourself and our children
|
||||
[ $pid -ne 1 -a $pid -ne $$ -a $ppid -ne $$ ] || continue
|
||||
|
||||
local cmdline
|
||||
read cmdline < /proc/$pid/cmdline
|
||||
|
||||
# Skip kernel threads
|
||||
[ -n "$cmdline" ] || continue
|
||||
|
||||
echo -n "$name "
|
||||
kill -$sig $pid 2>/dev/null
|
||||
|
||||
[ $loop -eq 1 ] && run=true
|
||||
done
|
||||
done
|
||||
echo ""
|
||||
}
|
||||
|
||||
|
||||
killall -9 telnetd
|
||||
killall -9 dropbear
|
||||
killall -9 ash
|
||||
@ -44,7 +142,8 @@ fi
|
||||
|
||||
if [ -n "$(rootfs_type)" ]; then
|
||||
echo "Switching to ramdisk..."
|
||||
run_ramfs "$COMMAND"
|
||||
else
|
||||
exec /bin/busybox ash -c "$COMMAND"
|
||||
switch_to_ramfs
|
||||
fi
|
||||
|
||||
# Exec new shell from ramfs
|
||||
exec /bin/busybox ash -c "$COMMAND"
|
||||
|
||||
@ -1,7 +1,5 @@
|
||||
#!/bin/sh
|
||||
|
||||
[ "$1" = "nand" ] && exec /lib/upgrade/stage2 "$2" "$3"
|
||||
|
||||
. /lib/functions.sh
|
||||
. /lib/functions/system.sh
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user