Edit file:
$ sudo nano /etc/default/grubSet (update) next values:
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISABLE_OS_PROBER=trueAnd execute:
$ sudo update-grubPlus you may need to edit the /etc/default/grub.d/50_linuxmint.cfg file:
-GRUB_DISABLE_OS_PROBER=false
+#GRUB_DISABLE_OS_PROBER=false