debootstrap: add page (#4971)

pages/linux/debootstrap.md

@@ -0,0 +1,20 @@
+# debootstrap
+
+> Create a basic Debian system.
+> More information: <https://wiki.debian.org/Debootstrap>.
+
+- Create a Debian stable release system inside the `debian-root` directory:
+
+`sudo debootstrap stable {{path/to/debian-root/}} http://deb.debian.org/debian`
+
+- Create an Ubuntu 20.04 system inside the `focal-root` directory with a local mirror:
+
+`sudo debootstrap focal {{path/to/focal-root/}} {{file:///path/to/mirror/}}`
+
+- Switch to a bootstrapped system:
+
+`sudo chroot {{path/to/root}}`
+
+- List available releases:
+
+`ls /usr/share/debootstrap/scripts/`