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Before adding more files, move the bootstd docs into a new directory, with an index. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
115 lines
3.6 KiB
ReStructuredText
115 lines
3.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
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.. index::
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single: bootmeth (command)
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bootmeth command
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================
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Synopsis
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--------
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::
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bootmeth list [-a] - list selected bootmeths (-a for all)
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bootmeth order "[<bm> ...]" - select the order of bootmeths\n"
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Description
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-----------
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The `bootmeth` command is used to manage bootmeths. It can list them and change
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the order in which they are used.
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See :doc:`/develop/bootstd/index` for more information.
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.. _bootmeth_order:
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bootmeth order
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~~~~~~~~~~~~~~
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Selects which bootmeths to use and the order in which they are invoked. When
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scanning bootdevs, each bootmeth is tried in turn to see if it can find a valid
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bootflow. You can use this command to adjust the order or even to omit some
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boomeths.
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The argument is a quoted list of bootmeths to use, by name. If global bootmeths
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are included, they must be at the end, otherwise the scanning mechanism will not
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work correctly.
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bootmeth list
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~~~~~~~~~~~~~
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This lists the selected bootmeths, or all of them, if the `-a` flag is used.
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The format looks like this:
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===== === ================== =================================
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Order Seq Name Description
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===== === ================== =================================
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0 0 extlinux Extlinux boot from a block device
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1 1 efi EFI boot from an .efi file
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2 2 pxe PXE boot from a network device
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3 3 sandbox Sandbox boot for testing
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glob 4 efi_mgr EFI bootmgr flow
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===== === ================== =================================
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The fields are as follows:
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Order:
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The order in which these bootmeths are invoked for each bootdev. If this
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shows as a hyphen, then the bootmeth is not in the current ordering. If it
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shows as 'glob', then this is a global bootmeth and should be at the end.
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Seq:
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The sequence number of the bootmeth, i.e. the normal ordering if none is set
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Name:
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Name of the bootmeth
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Description:
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A friendly description for the bootmeth
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Example
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-------
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This shows listing bootmeths. All are present and in the normal order::
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=> bootmeth list
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Order Seq Name Description
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----- --- ------------------ ------------------
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0 0 distro Extlinux boot from a block device
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1 1 efi EFI boot from an .efi file
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2 2 pxe PXE boot from a network device
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3 3 sandbox Sandbox boot for testing
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4 4 efi_mgr EFI bootmgr flow
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----- --- ------------------ ------------------
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(5 bootmeths)
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Now the order is changed, to include only two of them::
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=> bootmeth order "sandbox distro"
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=> bootmeth list
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Order Seq Name Description
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----- --- ------------------ ------------------
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0 3 sandbox Sandbox boot for testing
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1 0 distro Extlinux boot from a block device
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----- --- ------------------ ------------------
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(2 bootmeths)
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The -a flag shows all bootmeths so you can clearly see which ones are used and
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which are not::
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=> bootmeth list -a
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Order Seq Name Description
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----- --- ------------------ ------------------
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1 0 distro Extlinux boot from a block device
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- 1 efi EFI boot from an .efi file
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- 2 pxe PXE boot from a network device
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0 3 sandbox Sandbox boot for testing
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- 4 efi_mgr EFI bootmgr flow
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----- --- ------------------ ------------------
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(5 bootmeths)
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