• Make a EFI partition for win pe or linux live - Cr‚er une partie EFI po

    From german usenet@3:633/10 to All on Monday, June 15, 2026 07:42:06
    Subject: Make a EFI partition for win pe or linux live - Cr‚er une partie EFI pour un disque d'installation Win pe ou Linux live


    sous Linux avec Geparted on cr‚‚ une table de partition GPT alors
    qu'avant on cr‚‚ des tables de partition MBR (msdos)

    puis je cr‚‚ une petite partition 1Go - 5Go, format‚e en fat32, et l… je
    change le drapeau, de msdata je la tague esp,boot !

    sous windows...en terminal, avec diskpart, on fait

    create partition efi size=1000


    on ne fait pas create partition primary size=1000

    ensuite on formate en fat32

    format fs=fat32 label="esp"

    ***

    c'est cette partition tagu‚e ainsi, qui permet de respecter la
    s‚quence de d‚marrage en UEFI. sinon, si la partition EFI n'est
    pas tagu‚e efi correctement on a juste une partition en fat32 !



    --
    Amicalement,

    german


    --- PyGate Linux v1.5.16
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)
  • From german usenet@3:633/10 to All on Monday, June 15, 2026 07:43:01
    Subject: Re: Make a EFI partition for win pe or linux live - Cr‚er une partie EFI pour un disque d'installation Win pe ou Linux live

    Le 15/06/2026 … 07:42, german usenet a ‚crit˙:

    sous Linux avec Geparted on cr‚‚ une table de partition GPT alors
    qu'avant on cr‚‚ des tables de partition MBR (msdos)

    puis je cr‚‚ une petite partition 1Go - 5Go, format‚e en fat32, et l… je change le drapeau, de msdata je la tague esp,boot !

    sous windows...en terminal, avec diskpart, on fait

    create partition efi size=1000


    on ne fait pas create partition primary size=1000

    ensuite on formate en fat32

    format fs=fat32 label="esp"

    ***

    c'est cette partition tagu‚e ainsi, qui permet de respecter la
    s‚quence de d‚marrage en UEFI. sinon, si la partition EFI n'est
    pas tagu‚e efi correctement on a juste une partition en fat32 !




    sous windows, pour convertir un disque en GPT, avec diskpart on fait :

    convert gpt


    :)

    --
    Amicalement,

    german

    --- PyGate Linux v1.5.16
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)
  • From Paul@3:633/10 to All on Monday, June 15, 2026 11:14:28
    Subject: Re: Make a EFI partition for win pe or linux live - Cr‚er une partie EFI pour un disque d'installation Win pe ou Linux live

    On Mon, 6/15/2026 1:43 AM, german usenet wrote:
    Le 15/06/2026 … 07:42, german usenet a ‚crit˙:

    sous Linux avec Geparted on cr‚‚ une table de partition GPT alors qu'avant on cr‚‚ des tables de partition MBR (msdos)

    puis je cr‚‚ une petite partition 1Go - 5Go, format‚e en fat32, et l… je
    change le drapeau, de msdata je la tague esp,boot !

    sous windows...en terminal, avec diskpart, on fait

    create partition efi size=1000


    on ne fait pas create partition primary size=1000

    ensuite on formate en fat32

    format fs=fat32 label="esp"

    ***

    c'est cette partition tagu‚e ainsi, qui permet de respecter la
    s‚quence de d‚marrage en UEFI. sinon, si la partition EFI n'est
    pas tagu‚e efi correctement on a juste une partition en fat32 !




    sous windows, pour convertir un disque en GPT, avec diskpart on fait :

    convert gpt


    :)


    For that, you can try "mbr2gpt.exe", and that command has strict limits
    about what it will convert from MSDOS partitioning to GPT partitioning.
    The "mbr2gpt.exe" takes a maximum of three partitions. It is not
    capable of doing a good job converting extended/logical to GPT.

    AI Overview
    Converting a disk to GPT using Diskpart erases all data.
    Back up all your important files first.

    The command "convert gpt" in diskpart, is definitely not your friend,
    as commands go. There are plenty of alternate activities you can be
    doing instead. It's as dangerous as using the "clean" or "clean all"
    commands.

    Paul

    --- PyGate Linux v1.5.16
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)
  • From Heinz Schmitz@3:633/10 to All on Wednesday, June 17, 2026 11:11:45
    Subject: Re: Make a EFI partition for win pe or linux live - Cr‚er une partie EFI pour un disque d'installation Win pe ou Linux live

    Paul wrote:

    For that, you can try "mbr2gpt.exe", and that command has strict limits
    about what it will convert from MSDOS partitioning to GPT partitioning.
    The "mbr2gpt.exe" takes a maximum of three partitions. It is not
    capable of doing a good job converting extended/logical to GPT.

    AI Overview
    Converting a disk to GPT using Diskpart erases all data.
    Back up all your important files first.

    The command "convert gpt" in diskpart, is definitely not your friend,
    as commands go. There are plenty of alternate activities you can be
    doing instead. It's as dangerous as using the "clean" or "clean all" >commands.

    What I found on the web rather by a coincidence: https://support.microsoft.com/en-us/topic/windows-secure-boot-certificate -expiration-and-ca-updates-7ff40d33-95dc-4c3c-8725-a9b95457578e
    "... Windows Secure Boot certificates expiring in 2026"

    As it seems, MS$ also managed certificates for certain linux-families.
    I can't yet see to what extent we linux useres are hit and which
    machines will further on operate as normal.
    A discussion can be found on https://www.heise.de/en/guide/FAQ-The-secure-boot-disaster-9751994.html

    Regards,
    H.




    --- PyGate Linux v1.5.17
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)
  • From Paul@3:633/10 to All on Wednesday, June 17, 2026 07:15:08
    Subject: Re: Make a EFI partition for win pe or linux live - Cr‚er une partie EFI pour un disque d'installation Win pe ou Linux live

    On Wed, 6/17/2026 5:11 AM, Heinz Schmitz wrote:
    Paul wrote:

    For that, you can try "mbr2gpt.exe", and that command has strict limits
    about what it will convert from MSDOS partitioning to GPT partitioning.
    The "mbr2gpt.exe" takes a maximum of three partitions. It is not
    capable of doing a good job converting extended/logical to GPT.

    AI Overview
    Converting a disk to GPT using Diskpart erases all data.
    Back up all your important files first.

    The command "convert gpt" in diskpart, is definitely not your friend,
    as commands go. There are plenty of alternate activities you can be
    doing instead. It's as dangerous as using the "clean" or "clean all"
    commands.

    What I found on the web rather by a coincidence: https://support.microsoft.com/en-us/topic/windows-secure-boot-certificate-expiration-and-ca-updates-7ff40d33-95dc-4c3c-8725-a9b95457578e
    "... Windows Secure Boot certificates expiring in 2026"

    As it seems, MS$ also managed certificates for certain linux-families.
    I can't yet see to what extent we linux useres are hit and which
    machines will further on operate as normal.
    A discussion can be found on https://www.heise.de/en/guide/FAQ-The-secure-boot-disaster-9751994.html

    Regards,
    H.

    Sure. This is why you've seen programs like "mokutil" being
    run for you and messing around and screwing up the UEFI databases.

    As long as PCA2011 is not revoked, then both kinds of shims
    (PCA2011 based or PCA2023 based) would continue to work. Ubuntu
    at least, may have attempted to inject something in db and dbx.
    The dbx entry might be revocation of the PCA2011 one.

    So yes, there are details, and they do matter, but... only if you
    have Secure Boot switched on.

    Two of my machines have received BIOS updates. A third machine, I
    have the BIOS USB key ready to shove into that one and update it.
    The BIOS update USB key has two files on it, for two different brands
    of motherboards.

    The latest issue, is there is some signing or certificate associated
    with NVidia video cards, and (maybe) if you install a 580 driver,
    it won't secure boot with an older card. Which is why you might be
    using a 550 driver.

    I had something tip over here, where I had to remove around 20 packages
    with "NVidia" in the name, so I could get the Driver Manager to work again. Then I could select the 550 driver or so, and that installed OK and
    everything behaved properly after that. And that might be with a
    GTX1050 video card. This might have happened after some update session --
    the complexion of things changed and I still don't know all the details.

    On the one hand, you can turn off secure boot, but... I have one
    motherboard here that continues to analyze Linux materials even with
    secure boot off and the motherboard actually "black screens" and nothing
    works for as long as "invalid" hard drive contents are present. Once
    you remove all the OS drives which don't have perfect certificates and signing, then the motherboard turns on the screen again. That's an example of a
    worst case. I'm typing on that machine right now, but if I plug in some
    of my SSD collection, I can easily be treated to a black screen and then
    I have to disconnect whatever is not compliant. An Asus motherboard
    across the way, does not do that, and it behaves like a perfect gentleman.
    It actually attempts to boot things, only when asked to do so and not before.

    Could something happen after June 2026 passes ? Yes.

    Can I escape the symptoms with some work ? Maybe and maybe not.

    You should run a Google and find out what command line stuff to run
    to verify whether you're ready or not ready.

    If I were to turn on Secure Boot today (as the room is up to date
    on PCA2023), there are probably around 50 OS DVDs here that would
    no longer boot. Just to give you some idea just how important this
    day is. Depending on what happens to you, you could be a not-happy user.

    Paul





    --- PyGate Linux v1.5.17
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)