Please refer working and non working log Non -Working log ===================================================================== reboot [ OK ] Closed Load/Save RF Kill Switch Status /dev/rfkill Watch. Stopping User Manager for UID 0... Stopping Session c1 of user root. [ OK ] Stopped target Timers. [ OK ] Stopped Daily rotation of log files. [ OK ] Stopped Daily Cleanup of Temporary Directories. Stopping TI MultiCore Tools Daemon...[ 48.793886] Watchdog Timer is disabled Stopping NFS status monitor for[ OK ] Stopped Kernel Logging Service. [ OK ] Stopped Job spooling tools. [ 48.855345] ubi: mtd13 is already attached to ubi1 [ OK ] Stopped Periodic Command Scheduler. [ OK ] Stopped strongSwan IPsec IKEv1/IKEv2 daemon using[ OK ] Stopped Permit User Sessions. udhcpc (v1.24.1) started [ OK ] Stopped target Remote File Systems. eth0 Link encap:Ethernet HWaddr B0:7E:11:12:E2:C6 inet addr:10.100.108.236 Bcast:10.100.111.255 Mask:255.255.248.0 inet6 addr: fe80::b27e:11ff:fe12:e2c6%3068667288/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:368 errors:0 dropped:13 overruns:0 frame:0 TX packets:66 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:31239 (30.5 KiB) TX bytes:6140 (5.9 KiB) Interrupt:97 am57xx-evm variable is null Default is US/Estern [ OK ] Stopped Network Name Resolution. [ OK ] Stopped target Network. Stopping Network Service... Sending discover... Sending select for 10.100.108.236... [ OK ] Stopped Network Service. Lease of 10.100.108.236 obtained, lease time 1209600 deleting routers am57xx-evm variable is null Default is US/Estern adding dns 192.168.6.55 adding dns 192.168.6.56 adding dns 10.107.0.18 [ OK ] Stopped g3z-init.service. Stopping thermal-zone-init.service... [ OK ] Stopped thermal-zone-init.service. Stopping rng-tools.service... [ OK ] Stopped rng-tools.service. Stopping rc.pvr.service... [ OK ] Stopped rc.pvr.service. Stopping uim-sysfs.service... [ OK ] Stopped uim-sysfs.service. [ OK ] Stopped target Basic System. [ OK ] Stopped target Slices. [ OK ] Removed slice User and Session Slice. [ OK ] Stopped target Paths. [ OK ] Stopped Forward Password Requests to Wall Directory Watch. [ OK ] Stopped Dispatch Password Requests to Console Directory Watch. [ OK ] Stopped target Sockets. [ OK ] Closed RPCbind Server Activation Socket. [ OK ] Closed Syslog Socket. [ OK ] Closed D-Bus System Message Bus Socket. [ OK ] Stopped target System Initialization. Stopping Network Time Synchronization... Stopping Load/Save Random Seed... [ OK ] Stopped Apply Kernel Variables. [ OK ] Stopped Load Kernel Modules. [ OK ] Stopped Network Time Synchronization. [ OK ] Stopped Load/Save Random Seed. [ OK ] Stopped Create Volatile Files and Directories. [ OK ] Stopped target Local File Systems. Unmounting /mnt/nand... Unmounting /run/user/0... Unmounting Temporary Directory (/tmp)... Unmounting /media/ram... Unmounting /var/volatile... [FAILED] Failed unmounting /mnt/nand. [ OK ] Unmounted /run/user/0. [ OK ] Unmounted Temporary Directory (/tmp). [ OK ] Unmounted /media/ram. [FAILED] Failed unmounting /var/volatile. [ OK ] Stopped target Swap. [ OK ] Reached target Unmount All Filesystems. [ OK ] Stopped target Local File Systems (Pre). [ OK ] Stopped Create Static Device Nodes in /dev. [ OK ] Stopped Remount Root and Kernel File Systems. [ OK ] Reached target Shutdown. [ 51.175501] watchdog: watchdog0: watchdog did not stop! [ 51.186259] systemd-shutdow: 30 output lines suppressed due to ratelimiting [ 51.279515] systemd-shutdown[1]: Sending SIGTERM to remaining processes... [ 51.297364] systemd-journald[74]: Received SIGTERM from PID 1 (systemd-shutdow). [ 51.502258] systemd-shutdown[1]: Sending SIGKILL to remaining processes... [ 51.516705] systemd-shutdown[1]: Hardware watchdog 'OMAP Watchdog', version 0 [ 51.526486] systemd-shutdown[1]: Unmounting file systems. [ 51.532342] systemd-shutdown[1]: Remounting '/mnt/nand' read-only with options 'ubi=1,vol=0'. [ 51.545118] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" stops [ 51.552887] systemd-shutdown[1]: Unmounting /mnt/nand. [ 51.571466] UBIFS (ubi1:0): un-mount UBI device 1 [ 51.611149] systemd-shutdown[1]: Remounting '/var/volatile' read-only with options 'size=51200k'. [ 51.620213] systemd-shutdown[1]: Unmounting /var/volatile. [ 51.671037] systemd-shutdown[1]: Remounting '/' read-only with options 'ubi=0,vol=0'. [ 51.679857] systemd-shutdown[1]: Remounting '/' read-only with options 'ubi=0,vol=0'. Working Log ====================================================================================================== root@am57xx-evm:~# root@am57xx-evm:~# reboot -f Rebooting. [ 96.108448] reboot: Restarting system