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| | #redirect [[Some_explanation_to_some_errors_and_warnings#Authentication_token_lock_busy]] |
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| This usually happens when
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| * you are trying to change a password
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| * while filesystem that contains /etc/passwd and /etc/shadow (usually the root filesystem) is mounted read-only.
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| ...for example because
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| you booted up using [[the init trick]],
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| are in in some maintenance mode/runlevel,
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| or intentionally made the root filesystem read-only.
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| If you're sure you want to (e.g. this isn't triggered by an automatic remount-readonly to prevent filesystem corruption), then you can do an in-place re-mount of a filesystem, which lets you change between read-only and read-write.
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| In the case of the root filesystem:
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| mount -o remount,rw /
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| [[Category:Unices]]
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| [[Category:Warnings and errors]]
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