cannot change anything

Asked by yybss on 2018-01-12

$ sudo efibootmgr -t 5 -b 0004
Could not set Timeout: Interrupted system call

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Ubuntu efibootmgr Edit question
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Manfred Hampl (m-hampl) said : #1

For diagnostic purposes, what output do you get for the commands

sudo efibootmgr
sudo efibootmgr --verbose -t 5 -b 0004

I am not sure whether you can combine "global" settings (like -t 5) with the flag to select a single boot entry (-b 0004). What exactly do you expect that this command does?

yybss (yybss) said : #2

I want to make it waiting 5 seconds before come into the system。

yybss (yybss) said : #3

thank you,
ubuntu 17.10
Lenovo G5080

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