reboot 命令为什么不能重新启动？

[ubuntu]

root@TinaLinux:/# 
root@TinaLinux:/# /etc/init.d/rcK: line 7: /etc/init.d/S01app: not found
Not defined "stop" functions!!!
Stopping telnetd: FAIL
cat: can't open '/sys/class/sunxi_info/sys_info': No such file or directory
Stopping network: FAIL
stop...
Stopping logging: OK
Unload mpp modules
rmmod: can't unload module 'sunxi_eise': No such file or directory
rmmod: can't unload module 'sunxi_aio': No such file or directory
rmmod: can't unload module 'vin_v4l2': No such file or directory
rmmod: can't unload module 'imx386_mipi': No such file or directory
rmmod: can't unload module 'vin_io': No such file or directory
rmmod: can't unload module 'videobuf2_v4l2': No such file or directory
rmmod: can't unload module 'videobuf2_dma_contig': No such file or directory
rmmod: can't unload module 'videobuf2_memops': No such file or directory
rmmod: can't unload module 'videobuf2_core': No such file or directory
can't run '/sbin/swapoff': No such file or directory
[ 1964.322835] ffs_data_put(): freeing
[ 1964.335387] [EXFAT] trying to unmount...
[ 1964.339937] [EXFAT] unmounted successfully
[ 1964.345819] UBIFS (ubi0:7): un-mount UBI device 0
[ 1964.351114] UBIFS (ubi0:7): background thread "ubifs_bgt0_7" stops
umount: devtmpfs busy - remounted read-only
The system is going down NOW!
Sent SIGTERM to all processes
Requesting system reboot
[ 1966.365810] [ohci1-controller]: ohci shutdown start
[ 1966.371318] [ohci1-controller]: ohci shutdown end
[ 1966.376680] [ehci1-controller]: ehci shutdown start
[ 1966.382664] [ehci1-controller]: ehci shutdown end
[ 1966.388370] sunxi_ohci_hcd_shutdown, ohci0-controller is disable, need not shutdown
[ 1966.397002] sunxi_ehci_hcd_shutdown, ehci0-controller is disable, need not shutdown
[ 1967.424711] reboot: Restarting system
[ 1968.428877] Reboot failed -- System halted

[whycan]

@ubuntu

reboot 依赖看门狗，试一试把看门狗开起来。

[memory]

@ubuntu
是的，要开狗。

[ubuntu]

@memory @whycan 谢谢两位，开看门狗之后正常了。