From:
Make backup a default grub file:
sudo cp /etc/default/grub /etc/default/grub.bak
Edit grub file in Your favorite text editor. For this HowTo I used nano.
sudo nano /etc/default/grub
Find line:
GRUB_CMDLINE_LINUX=""
Disabling Watchdog feature
nowatchdog
…don’t forget to
sudo update-grub
NOTE: blacklist Watchdogs modules too:
/etc/modprobe.d/blacklist.conf
blacklist iTCO_wdt
blacklist iTCO_vendor_support