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docs: Update kernel docs with new build customisation

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Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer 2017-08-24 15:40:40 +01:00
parent 7209afb758
commit 719bba5486
1 changed files with 13 additions and 2 deletions
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docs/kernels.md
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@ -140,16 +140,27 @@ kernel:
If you have committed your local changes, the `-dirty` will not be
appended. Then you can also override the Hub organisation to use the
image elsewhere with:
image elsewhere with (and also disable image signing):
```sh
make ORG=<your hub org>
make ORG=<your hub org> NOTRUST=1
```
The image will be uploaded to Hub and can be use in a YAML file as
`<your hub org>/kernel:4.9.33` or as `<your hub
org>/kernel:4.9.33-<hash>`.
The kernel build system has some provision to allow local
customisation to the build.
If you want to override/add some kernel config options, you can add a
file called `kernel_config-foo` and then invoke the build with `make
EXTRA=-foo build_4.9.x-foo` and this will build an image with the
additional kernel config options enabled.
If you want additional patches being applied, just copy them to the
`patches-4.X.x` and the build process will pick them up.
## Working with Linux kernel patches for LinuxKit