https://wiki.archlinux.org/api.php?hidebots=1&days=30&limit=50&hidecategorization=1&target=UEFI&action=feedrecentchanges&feedformat=atom
ArchWiki - Changes related to "UEFI" [en]
2024-03-28T16:32:18Z
Related changes
MediaWiki 1.41.0
https://wiki.archlinux.org/index.php?title=Unified_Extensible_Firmware_Interface&diff=803978&oldid=803955
Unified Extensible Firmware Interface
2024-03-19T21:34:00Z
<p>write everywhere "BOOTx64.EFI", not suddenly all in capital letters ("X64" instead of "x64")</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:34, 19 March 2024</td>
</tr><tr><td colspan="4" class="diff-multi" lang="en">(One intermediate revision by the same user not shown)</td></tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l440">Line 440:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{ic|''esp''/EFI/BOOT/BOOTx64.EFI}} for x64 UEFI</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{ic|''esp''/EFI/BOOT/BOOTx64.EFI}} for x64 UEFI</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* {{ic|''esp''/EFI/BOOT/<del style="font-weight: bold; text-decoration: none;">BOOTIA</del>.EFI}} for IA32 UEFI.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* {{ic|''esp''/EFI/BOOT/<ins style="font-weight: bold; text-decoration: none;">BOOTIA32</ins>.EFI}} for IA32 UEFI.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While the specification defines these for removable drives only, most firmware support booting these from any drive.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While the specification defines these for removable drives only, most firmware support booting these from any drive.</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l486">Line 486:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some motherboards may remove boot entries due to lack of free space in the NVRAM instead of giving an error at creation. To prevent this from occurring, reduce the amount of boot entries being added by minimizing your entry creation process, as well as reducing the amount of automatic drive boot entries by the [[Wikipedia:Unified Extensible Firmware Interface#CSM booting|Compatibility Support Module (CSM)]] by disabling it from your UEFI settings. See [https://bbs.archlinux.org/viewtopic.php?pid=1608838#p1608838 BBS#1608838].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some motherboards may remove boot entries due to lack of free space in the NVRAM instead of giving an error at creation. To prevent this from occurring, reduce the amount of boot entries being added by minimizing your entry creation process, as well as reducing the amount of automatic drive boot entries by the [[Wikipedia:Unified Extensible Firmware Interface#CSM booting|Compatibility Support Module (CSM)]] by disabling it from your UEFI settings. See [https://bbs.archlinux.org/viewtopic.php?pid=1608838#p1608838 BBS#1608838].</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Another reason why boot entries might have been removed is the fact that UEFI specification allows OEMs to do "NVRAM maintenance" during boot process. Those manufacturers do it simply: they just look up for EFI applications in predefined, hardcoded paths on the device. If they fail to find any, they conclude there is no OS on the device and wipe all boot entries from NVRAM associated with it, because they assume the NVRAM contains some corrupted or outdated data. If you do not plan to install Windows and still want to load the Linux kernel directly from the firmware, one possible workaround is to create an empty file {{ic|''esp''/EFI/BOOT/<del style="font-weight: bold; text-decoration: none;">BOOTX64</del>.EFI}}: </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Another reason why boot entries might have been removed is the fact that UEFI specification allows OEMs to do "NVRAM maintenance" during boot process. Those manufacturers do it simply: they just look up for EFI applications in predefined, hardcoded paths on the device. If they fail to find any, they conclude there is no OS on the device and wipe all boot entries from NVRAM associated with it, because they assume the NVRAM contains some corrupted or outdated data. If you do not plan to install Windows and still want to load the Linux kernel directly from the firmware, one possible workaround is to create an empty file {{ic|''esp''/EFI/BOOT/<ins style="font-weight: bold; text-decoration: none;">BOOTx64</ins>.EFI}}: </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # mkdir -p ''esp''/EFI/BOOT </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # mkdir -p ''esp''/EFI/BOOT </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> # touch ''esp''/EFI/BOOT/<del style="font-weight: bold; text-decoration: none;">BOOTX64</del>.EFI</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> # touch ''esp''/EFI/BOOT/<ins style="font-weight: bold; text-decoration: none;">BOOTx64</ins>.EFI</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>And restore the deleted boot entry. Now after reboot the motherboard will see the "Fake OS" and should not wipe other boot entries from NVRAM. You can change the fake OS loader with an actual EFI application if you want, of course, as long as you keep the standard fallback name.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>And restore the deleted boot entry. Now after reboot the motherboard will see the "Fake OS" and should not wipe other boot entries from NVRAM. You can change the fake OS loader with an actual EFI application if you want, of course, as long as you keep the standard fallback name.</div></td></tr>
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Andret
https://wiki.archlinux.org/index.php?title=Unified_Extensible_Firmware_Interface&diff=803955&oldid=801995
Unified Extensible Firmware Interface
2024-03-19T13:29:00Z
<p><span dir="auto"><span class="autocomment">Linux kernel configuration options for UEFI: </span> CONFIG_EFI_VARS removed completely since 6.0 kernel</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:29, 19 March 2024</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l83">Line 83:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> CONFIG_EFIVAR_FS=y</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> CONFIG_EFIVAR_FS=y</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">UEFI Runtime Variables Support (old '''efivars sysfs''' interface - {{ic|/sys/firmware/efi/vars}}). This option should be disabled to prevent any potential issues with both efivarfs and sysfs-efivars enabled.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[GUID Partition Table]] (GPT) configuration option - mandatory for UEFI support</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[GUID Partition Table]] (GPT) configuration option - mandatory for UEFI support</div></td></tr>
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Hanabishi
https://wiki.archlinux.org/index.php?title=Unified_Extensible_Firmware_Interface&diff=801995&oldid=797429
Unified Extensible Firmware Interface
2024-03-03T04:09:31Z
<p><span dir="auto"><span class="autocomment">efibootmgr: </span> Remove second efibootmgr command, because the current example works with /dev/sda, not /dev/nvme0n1, and thus it might confuse users. Also, according to the description above and the man page, the command has wrong arguments, since a partition is passed to --disk.</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 04:09, 3 March 2024</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l167">Line 167:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # efibootmgr --create --disk /dev/sda --part 1 --loader '\EFI\refind\refind_x64.efi' --label 'rEFInd Boot Manager' --unicode</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # efibootmgr --create --disk /dev/sda --part 1 --loader '\EFI\refind\refind_x64.efi' --label 'rEFInd Boot Manager' --unicode</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> # efibootmgr --create --disk /dev/nvme0n1p1 --loader '\EFI\refind\refind_x64.efi' --label 'rEFInd Boot Manager' --unicode</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>See {{man|8|efibootmgr}} or [https://raw.githubusercontent.com/rhinstaller/efibootmgr/master/README efibootmgr README] for more info.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>See {{man|8|efibootmgr}} or [https://raw.githubusercontent.com/rhinstaller/efibootmgr/master/README efibootmgr README] for more info.</div></td></tr>
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Mearon