| #!/bin/sh |
| if test -c /dev/watchdog; then |
| watchdog -t 1 -T 15 -F /dev/watchdog & |
| wdpid=$! |
| fi |
| |
| # Unmount all of the old SPI flash mountpoints |
| while read -r mnt; do |
| umount -f "$mnt" || true |
| done < <(awk '{print $2}' /proc/mounts | grep '^/oldroot' | sort -r) |
| |
| get_mtd() { |
| grep '"'"$1"'"$' /proc/mtd | sed 's,:.*,,' |
| } |
| |
| flash_bmc() { |
| local rwdev |
| rwdev=/dev/$(get_mtd rwfs) || return |
| local bmcdev |
| bmcdev=/dev/$(get_mtd bmc) || return |
| |
| # Store the old RWFS |
| echo '### Reading old RWFS' >&2 |
| flasher read mtd,"$rwdev" oldrwfs || return |
| |
| # This script is only invoked with an image present, so always flash it |
| echo '### Writing new Image' >&2 |
| flasher auto image-bmc mtd,"$bmcdev" || true |
| |
| # Write the old RWFS back |
| echo '### Writing old RWFS' >&2 |
| flasher auto oldrwfs mtd,"$rwdev" || true |
| } |
| |
| if [ -e image-bmc ]; then |
| flash_bmc |
| fi |
| |
| # Drain all remaining messages to the console |
| test -t 1 && stty cooked 0<&1 |
| |
| echo '### Remaining mounts:' |
| cat /proc/mounts |
| |
| if [ -e do_powercycle.sh ]; then |
| echo '### Triggering Powercycle' >&2 |
| sh do_powercycle.sh |
| sleep 10 |
| echo '### Powercycle probably failed' >&2 |
| fi |
| kill $wdpid |
| exe=/bin/"${1-reboot}" |
| if test -e "$exe"; then |
| "$exe" -f |
| fi |
| echo "### Failed to find / execute $exe, rebooting" >&2 |
| reboot -f |
