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Nathan Madigan
Asked: 2020-11-04 11:24:54 +0800 CST

Chromium OS refuses to execute binary (crouton) from Download folder

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When ever I try to load ubuntu like using the command:

sudo sh ~/Downloads/crouton -t unity

I will get the error:

sh: 0: Refusing to exec /home/chronos/user/Downloads/crouton from noexec mount

if anyone can help or relate please please help I am stuck here

command-line chromebook chromeos crouton

2 Answers

  1. The disk partition you're trying to execute from has been mounted with the noexec option (see man 8 mount or https://linux.die.net/man/8/mount ), which forbids execution of binaries. Either cp the file to a directory on a partition mounted with exec (without noexec), or fix the way it's mounted.

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  2. sudo mount -o remount,exec,suid,dev,symfollow /home/chronos/user/Downloads/

    You are not able to execute the script since that is "nonexec mount" which means no scripts can be executed from there. To solve this, give your downloads directory exec permissions with the above command.

    The above line of code unmounts and remounts your downloads directory with exec and dev permissions so that scripts can be executed from your downloads directory.

    The sudo at the beginning is for root permissions, then the remount statement gives it exec, suid and dev permissions and also disables nosymfollow(but that part is optional) and then I mention the name of the directory, which is your downloads.

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