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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 27 Jun 2020
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      Is there a way to stop Windows 10 from making itself the default UEFI boot option every time I boot it? Because I'm getting *really* tired of this shit.pic.twitter.com/IzP9UD0ly4

      29 replies 10 retweets 150 likes
    2. Thaddeus‏ @BlueCollarMage 27 Jun 2020
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      Replying to @marcan42

      I think that's in BIOS itself? You gotta disable safe boot or whatever. If you're having trouble accessing the option, you have to give your BIOS a password before it'll let you deactivate it.

      1 reply 0 retweets 0 likes
    3. linked list liker‏ @leftpaddotpy 27 Jun 2020
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      Replying to @BlueCollarMage @marcan42

      that is not true. boot order is in EFI vars which, mostly for worse, means that self-centered operating systems can fuck with it. this is absolutely a problem on the windows side.

      2 replies 0 retweets 7 likes
    4. Farce Majeure 🌹‏ @vathpela 27 Jun 2020
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      Replying to @leftpaddotpy @marcan42

      No, it depends. There are firmwares out there that rewrite the boot entries despite everything we out in section 3 of the spec, and some that delete things they don't recognize (or even dumber...). I wonder if any stop you from creating BootOrder as an authenticated var... ;)

      1 reply 0 retweets 5 likes
    5. Farce Majeure 🌹‏ @vathpela 27 Jun 2020
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      Replying to @vathpela @leftpaddotpy @marcan42

      *everything we /put/ in section 3. *sigh*

      1 reply 0 retweets 3 likes
    6. Hector Martin‏ @marcan42 27 Jun 2020
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      Replying to @vathpela @leftpaddotpy

      It's Windows. It happens when I boot Windows. After putting Linux back on top it stays there until some Windows boot decides to change it back. I don't even boot Windows from the BIOS menu, I chainload it from GRUB so I don't even *need* that UEFI boot entry.

      1 reply 0 retweets 3 likes
    7. linked list liker‏ @leftpaddotpy 27 Jun 2020
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      Replying to @marcan42 @vathpela

      then the shitty strategy proposed above and on the Arch wiki of using bcdedit to have the Windows entry load GRUB is probably your best bet :)

      1 reply 0 retweets 1 like
    8. Hector Martin‏ @marcan42 27 Jun 2020
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      Replying to @leftpaddotpy @vathpela

      That won't work... Because I also boot this Windows install virtualized. And the *virtual* UEFI needs to have the Windows boot manager first, lest I accidentally boot Linux twice at the same time and corrupt everything. I just want it to stop touching my EFI vars :(

      2 replies 0 retweets 2 likes
    9. linked list liker‏ @leftpaddotpy 27 Jun 2020
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      Replying to @marcan42 @vathpela

      this is all incredibly fucked up, but is it possible to have the virtual UEFI directly load bootmgfw.efi, ignoring EFI vars?

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 27 Jun 2020
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      Replying to @leftpaddotpy @vathpela

      It's a normal UEFI, so short of patching the ROM itself, probably not.

      9:21 PM - 27 Jun 2020
      1 reply 0 retweets 0 likes
        1. linked list liker‏ @leftpaddotpy 27 Jun 2020
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          Replying to @marcan42 @vathpela

          there is also the also very fucked up suggestion to make a scheduled task to have Windows change it back to the desired one on each boot: https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#Windows_changes_boot_order …

          0 replies 0 retweets 0 likes
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