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docs: Change in setting up the debug console

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The debug console can be set up with the help of both rootfs or initrd image.

Fixes: #609

Signed-off-by: Amulya Meka <amulmek1@in.ibm.com>
This commit is contained in:
Amulya Meka
2020-03-16 09:29:08 +05:30
parent 17a9857ac6
commit 80702f6dd7
1 changed files with 6 additions and 3 deletions
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9
Developer-Guide.md
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@@ -451,7 +451,7 @@ packages in the rootfs, which would increase the size of the image used to
boot the virtual machine.
If you want to login to a virtual machine that hosts your containers, complete
the following steps, which assume the use of a rootfs image.
the following steps (using rootfs or initrd image).
> **Note:** The following debug console instructions assume a systemd-based guest
> O/S image. This means you must create a rootfs for a distro that supports systemd.
@@ -473,7 +473,7 @@ the following steps, which assume the use of a rootfs image.
### Create a custom image containing a shell
To login to a virtual machine, you must
[create a custom rootfs](#create-a-rootfs-image)
[create a custom rootfs](#create-a-rootfs-image) or [custom initrd](#create-an-initrd-image---optional)
containing a shell such as `bash(1)`. For Clear Linux, you will need
an additional `coreutils` package.
@@ -517,12 +517,15 @@ $ sudo sed -i '$a Requires=kata-debug.service' ${ROOTFS_DIR}/lib/systemd/system/
### Build the debug image
Follow the instructions in the [Build a rootfs image](#build-a-rootfs-image)
section.
section when using rootfs, or when using initrd, complete the steps in the [Build an initrd image](#build-an-initrd-image) section.
### Configure runtime for custom debug image
Install the image:
>**Note**: When using an initrd image, replace the below rootfs image name `kata-containers.img`
>with the initrd image name `kata-containers-initrd.img`.
```
$ name="kata-containers-centos-with-debug-console.img"
$ sudo install -o root -g root -m 0640 kata-containers.img "/usr/share/kata-containers/${name}"