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Plus, you should note down the revision number – for example REV 1.03G as it may require a different BIOS file to previous revisions.If you have a laptop, you need only to find the make and exact model of the machine itself.See also: How to install Windows 7 Before you start, heed this warning: if something goes wrong during the BIOS update, your computer could be rendered useless.If there's a power cut, or the computer gets turned off while updating, it could mean that it's unable to boot at all.In most cases, nothing will go wrong at all, but it's important to know that there's an associated risk and not to treat the process too lightly.It's good to have a spare copy of all important files from your PC before you start.Sometimes this will be done automatically as part of the updating process, but if it requires you to do it manually, be sure not to skip this step.The easiest way is to look in the user manual of your mainboard.
It seems that the update is handled entirely from an El Torito emulated hard disk image (as opposed to using the image only to bootstrap the drivers needed to access the CD).
For this reason, it's worth checking whether you really need to update your BIOS.
Read the release notes of the latest version (and each version back to the one currently installed) to see whether it will add the features you need or fix a problem you're having.
You can either use a GUI software manager like GNOME Software to view and apply updates, the command-line tool or the system D-Bus interface directly.
Usage: fwupdmgr [OPTION...] clear-results Clears the results from the last update dump-rom Dump the ROM checksum get-details Gets details about a firmware file get-devices Get all devices that support firmware updates get-results Gets the results from the last update get-updates Gets the list of updates for connected hardware install Install a firmware file on this hardware install-prepared Install prepared updates now refresh Refresh metadata from remote server unlock Unlocks the device for firmware access update Updates all firmware to latest versions available verify Gets the cryptographic hash of the dumped firmware verify-update Update the stored metadata with current ROM contents Help Options: -h, --help Show help options Application Options: -v, --verbose Show extra debugging information --offline Perform the installation offline where possible --allow-reinstall Allow re-installing existing firmware versions --allow-older Allow downgrading firmware versions Devices using LVFS for firmware updates This list shows all the updates that have been pushed to the stable metadata.