full(4) always full device


If your system does not have /dev/full created already, it can be created with the following commands:
        mknod -m 666 /dev/full c 1 7
        chown root:root /dev/full


File /dev/full has major device number 1 and minor device number 7.

Writes to the /dev/full device will fail with an ENOSPC error. This can be used to test how a program handles disk-full errors.

Reads from the /dev/full device will return \0 characters.

Seeks on /dev/full will always succeed.




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