16accb6b24
- 264 license table entries with exact download URLs (224/264 resolved) - Complete sources/ directory with all BitBake recipes - Build configuration: tqma6ul-multi-mba6ulx, spaetzle (musl) - Full traceability for Softwarefreigabeantrag - GCC 13.4.0, Linux 6.6.102, U-Boot 2023.04, musl 1.2.4 - License distribution: GPL-2.0 (24), MIT (23), GPL-2.0+ (18), BSD-3 (16)
59 lines
2.3 KiB
ReStructuredText
59 lines
2.3 KiB
ReStructuredText
.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
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Flashing Images Using `bmaptool`
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********************************
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A fast and easy way to flash an image to a bootable device is to use
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`bmaptool`, which is integrated into the OpenEmbedded build system.
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`bmaptool` is a generic tool that creates a file's block map (bmap) and
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then uses that map to copy the file. As compared to traditional tools
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such as `dd` or `cp`, `bmaptool` can copy (or flash) large files like raw
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system image files much faster.
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.. note::
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- If you are using Ubuntu or Debian distributions, you can install
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the ``bmap-tools`` package using the following command and then
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use the tool without specifying ``PATH`` even from the root
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account::
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$ sudo apt install bmap-tools
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- If you are unable to install the ``bmap-tools`` package, you will
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need to build `bmaptool` before using it. Use the following command::
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$ bitbake bmaptool-native -caddto_recipe_sysroot
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Following, is an example that shows how to flash a Wic image. Realize
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that while this example uses a Wic image, you can use `bmaptool` to flash
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any type of image. Use these steps to flash an image using `bmaptool`:
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#. *Update your local.conf File:* You need to have the following set
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in your ``local.conf`` file before building your image::
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IMAGE_FSTYPES += "wic wic.bmap"
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#. *Get Your Image:* Either have your image ready (pre-built with the
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:term:`IMAGE_FSTYPES`
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setting previously mentioned) or take the step to build the image::
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$ bitbake image
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#. *Flash the Device:* Flash the device with the image by using `bmaptool`
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depending on your particular setup. The following commands assume the
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image resides in the :term:`Build Directory`'s ``deploy/images/`` area:
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- If you installed the package for `bmaptool`, you can directly run::
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$ sudo bmaptool copy build-directory/tmp/deploy/images/machine/image.wic /dev/sdX
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- Otherwise, if you built `bmaptool` with BitBake, run::
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$ sudo chmod a+w /dev/sdX # get write access to the media, needed only once after booting
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$ oe-run-native bmaptool-native bmaptool copy build-directory/tmp/deploy/images/machine/image.wic /dev/sdX
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For help on the ``bmaptool`` command, use the following command::
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$ bmaptool --help
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