23aa76dff0
debootstrap is not debian or ubuntu specific. We can make a debootstrap element that knows how to do all of the things, and then a debian-minimal and ubuntu-minimal image that use it. Finally, make the debian element simply be a collection of the extra things we do to make it look like a cloud-init based cloud image. Change-Id: Iaf46c8e61bf1cac9a096cbfd75d6d6a9111b701e
35 lines
1.4 KiB
ReStructuredText
35 lines
1.4 KiB
ReStructuredText
===========
|
|
debootstrap
|
|
===========
|
|
|
|
Base element for creating minimal debian-based images.
|
|
|
|
This element is incomplete by itself, you'll want to use the debian-minimal
|
|
or ubuntu-minimal elements to get an actual base image.
|
|
|
|
If necessary, a custom apt keyring and debootstrap script can be
|
|
supplied to the `debootstrap` command via `DIB_APT_KEYRING` and
|
|
`DIB_DEBIAN_DEBOOTSTRAP_SCRIPT` respectively. Both options require the
|
|
use of absolute rather than relative paths.
|
|
|
|
Use of this element will also require the tool 'debootstrap' to be
|
|
available on your system. It should be available on Ubuntu, Debian,
|
|
and Fedora.
|
|
|
|
The `DIB_OFFLINE` or more specific `DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE`
|
|
variables can be set to prefer the use of a pre-cached root filesystem
|
|
tarball.
|
|
|
|
The `DIB_DEBOOTSTRAP_EXTRA_ARGS` environment variable may be used to
|
|
pass extra arguments to the debootstrap command used to create the
|
|
base filesystem image. If --keyring is is used in `DIB_DEBOOTSTRAP_EXTRA_ARGS`,
|
|
it will override `DIB_APT_KEYRING` if that is used as well.
|
|
|
|
-------------------
|
|
Note on ARM systems
|
|
-------------------
|
|
|
|
Because there is not a one-to-one mapping of `ARCH` to a kernel package, if
|
|
you are building an image for ARM on debian, you need to specify which kernel
|
|
you want in the environment variable `DIB_ARM_KERNEL`. For instance, if you want
|
|
the `linux-image-mx5` package installed, set `DIB_ARM_KERNEL` to `mx5`.
|