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An Ignorant Wanderer
Asked: 2020-05-02 14:09:23 +0800 CST

Trying to modify /proc/sys/vm/overcommit_memory, but getting permission denied even with sudo

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I am trying to edit the file /proc/sys/vm/overcommit_memory, but I'm getting permission denied even if I use sudo or switch to root user via sudo -i and try to edit using that account. How can I get this to work?

permissions sudo ram

2 Answers

  1. Instead of using sudo -i and then using echo, just pipe echo to sudo tee instead like this:

    echo 1 | sudo tee /proc/sys/vm/overcommit_memory
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  2. Best Answer

    I found my answer here. I was trying to use vim to edit the file while in root user mode, but it turns out you can't do that since the file is virtual. Instead, I used echo 1 >/proc/sys/vm/overcommit_memory

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