Users Guide


      )TPM(
 :           https://developer.ubuntu.com/en/snappy/guides/security-
whitepaper/.
        ) TPM (           



  Snappy . / 
     ) TPM (      ) BIOS (    .
 :
admin@localhost:$ ls /dev/tpm0
       ) TPM (      ) /dev/tpm0 (  .
)plano)ubuntu@localhost:$ ls /dev/tpm0
Is: cannot access /dev/tpm0: No such file or directory
       ) TPM (    ) /dev/tpm0 ( .
)plano)ubuntu@localhost:$ ls /dev/tpm0
/dev/tpm0
 Watchdog Timer (WDT(
 :     Watchdog Timer (WDT)  www.sat.dundee.ac.uk/~psc/watchdog/Linux-Watchdog.html.
  WDT 

      . Snappy      WDT         
  .
 :
admin@localhost:$ systemctl show | grep –i watchdog
:
RuntimeWatchdogUSec=10s
ShutdownWatchdogUSec=10min
 :   10 .       0.
 Ubuntu Core 16
              .    Ubuntu Core 16     
 :
•   Ubuntu Core 16    USB 
•   Ubuntu Core 16      Edge Gateway
– 1 :   
– 2 :     ) POST(
– 3 :   )  Edge Gateway 3003 (
 1 :   
 :           Edge Gateway
1.   Edge Gateway  

         ) KVM.(
2.     .
3.       eMMC .:
$sudo efibootmgr -n $(efibootmgr | grep "factory_restore" | sed 's/Boot//g' | sed 's/
[^0-9A-B]*//g') ; reboot
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