Bug#921815: debootstrap umount "host" /proc when running in a Docker container

To: submit@bugs.debian.org
Subject: Bug#921815: debootstrap umount "host" /proc when running in a Docker container
From: "Kristian Klausen" <kristian@klausen.dk>
Date: Sat, 09 Feb 2019 05:01:32 +0100
Message-id: <[🔎] 41fb-5c5e5080-f-64192d00@203865272>
Reply-to: "Kristian Klausen" <kristian@klausen.dk>, 921815@bugs.debian.org

Package: debootstrap
Version: 1.0.110~bpo9+1

Hi

When running debootstrap inside a Docker container, debootstrap umount both /proc and $TARGET/proc.
This is due to a missing check at:
https://salsa.debian.org/installer-team/debootstrap/blob/67a3c1c5f7ef44a6596f75b787289b3392c50759/scripts/debian-common#L104
Due to the missing check debootstrap umount "$TARGET/proc", which is a symlink to /proc [1].

I will open a MR shortly.

[1] https://salsa.debian.org/installer-team/debootstrap/blob/67a3c1c5f7ef44a6596f75b787289b3392c50759/scripts/debian-common#L68

- Kristian Klausen

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  - From: "Kristian Klausen" <kristian@klausen.dk>

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