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Thread: is UEFI required all windows 8?

  1. #1
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    Oct 2011
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    is UEFI required all windows 8?

    I have some information about Microsoft I want to share this information with you…Microsoft utilize Windows 8 as the default UEFI with installing its boot loader. This should be signed personal Computers, which are registered for Windows 8, must be fitted instead of the traditional BIOS with UEFI firmware. The boot loader place on or store on Windows should be signed. When installing extra other operating systems like UBUNTU - Windows would believe its boot loader and decline to cooperation when Windows starts. Depending to Microsoft on Windows 8, all software and firmware that are in charge for the boot process are mitsigniert. Hardware support such as confident Platform Module (TPM) is not all time necessary. Applicable signatures, however, are need for the launch of Windows 8 client. Even the firmware UEFI must have a signature, as to safe a successor to the BIOS.

  2. #2
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    Nov 2010
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    Re: is UEFI required all windows 8?

    On the other hand the one mania i did pick from the conversations was that windows will decline to boot if the boot loader is conciliation in any way. I’m pretty convinced we were all attentive of that in any case. The entire development is going to be down to digital signatures and that's no simple process to obtain approximately.

  3. #3
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    Nov 2010
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    Re: is UEFI required all windows 8?

    If this is factual then somebody in the UBUNTU community will come up with a development. If OEM commencement is locked down to UEFI no more than then older systems using the inheritance BIOS won't be capable to activate by means of the OEM channel. It's not somewhat that can be emulated also. The news posted could be incorrect certainly for the reason that FALCK seems to be quoting what he's understand online and KURIM just takes a presumption.

  4. #4
    Join Date
    Dec 2010
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    334

    Re: is UEFI required all windows 8?

    Windows 8 specialized OEM systems will necessitate UEFI and the opportunity of protected boot, MS said that at make. Unsigned boot loaders are single prohibited if protected boot is enabled, but that's awake to the OEM. No point for Microsoft in going to this entire problem if OEM window 8 will be allowable to boot without safe boot enabled. So what the OEMs do (supply/not supply switch) may be inappropriate.

  5. #5
    Join Date
    Mar 2011
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    490

    Re: is UEFI required all windows 8?

    The (Chameleon) boot loader permit Mac OS X to boot on machines that have a inheritance BIOS,
    purchase emulating a( UEFI )bios, the similar sort of obsession could be utilized for Windows, in actuality given the lengths that the DEV'S had to go to in categorize to deception Mac OS X into idea it is running
    on Apple hardware is pretty remarkable. If Windows desires a TPM to trigger using OEM, then an UEFI runtime driver could be written to imitate it and loaded by a tradition boot loader. as far as protected boot is worried we own the machine this near the beginning in the boot process and the method UEFI loads drivers and applications we can build the OS see whatever we desire it to observe and patch whatever wants to be patched before transient implementation to the next stage. I'm not considering any tough troubles yet but we won't be acquainted with for certain until Windows 8 is released.

  6. #6
    Join Date
    May 2011
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    Re: is UEFI required all windows 8?

    I even don't believe emulation is going to be achievable, and still if somewhat was developed it'd be greatly incomplete as to what hardware it'd mechanism with. If you install a customized edition of Chameleon to a divider boot sector, USB or MBR then that's going to be noticeable to the untimely begin anti malware (ELAM) customer or the anti-malware customer operating in Windows. Also let’s not disregard that this substance has to be digitally signed and if protected boot is a condition for OEM establishment then that now makes things even harder. To summarize:-
    • It has to work on the entire hardware (counting UEFI motherboards that are becoming fashionable)
    • It has to be signed digitally.
    • It has to someway go around two anti-malware customers
    • It has to trick Windows into belief that the drive is GPT or else its apparently not suitable
    • OEM's possibly will not still use static serials; sense Microsoft could effortlessly block serials
    So being practical there’s just means over to it and I'm helpful that several project that could incompletely work would have to build enough modification to the OS that Microsoft could block it through an update. Having supposed that, I believe that via the KMS channel will almost certainly be simpler than the OEM channel.

  7. #7
    Join Date
    May 2011
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    397

    Re: is UEFI required all windows 8?

    As Microsoft previously said protected Boot is a must contain with UEFI for OEM's, but the capability to immobilize Secure Boot is not, but it's sort of tough to expect OEM's to add a alternative to disable it (on Desktops) they might be extra open on Laptops as you can not tradition build a laptop manually different a Desktop, totaling a option might mean for lot of "NOOBS" that the first object they do is immobilize Secure Boot still though they are not installing ubuntu or something else..Convinced it's a loss for the customer when his requirements to install a 3rd party boot loader that isn't signed, but in the finish GRUB etc can be signed no nor does this GPL certify not permit application to be digitally signed? At least i don't observe any genuine reason for amazing like Ubuntu to stop working on such computers where you cannot disable Secure Boot, behind Ubuntu is a million dollar business (a rich dude), they simply can have enough money for a digital signature... and heck if GRUB obstructs them from doing so they just note down their own or use another.

  8. #8
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    May 2011
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    434

    Re: is UEFI required all windows 8?

    I can inform you precisely what this chat is about:
    If OEM_SLP wants a signed boot atmosphere then it means when import a preinstalled OEM computer you have a moreover or situation. You cannot double boot a windows 8 OEM_SLP certify with a unsigned boot loader. To trigger windows 8 via SLP channel you require mimicking the specifications of OA3.0, obviously not installing a loader on a legit device. The trouble with grub2 :If grub should turn out to be digitally signed the signature input must turn out to be public, it's a GPLv3-License . We don't be familiar with the specifications of OA3.0 and if protected boot is included. Also keep in mind one thing, Intel EFI has previously a signed area. Until now no one was capable to change (SLIC) such a EFI. The query will be, is it probable to mimic the condition for OA3.0? One thing is apparent to me previously OA3.0 will be executed into UEFI simply

  9. #9
    Join Date
    Jun 2011
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    484

    Re: is UEFI required all windows 8?

    If MS is going to force OEMs to allow it by default then the Linux community will be annoyed. But it's confident that they are going to permit it. So possibly they'll add an alternative to go from windows boot loader (signed) to grub (unsigned) and then to Linux. I easy "I belief this boot loader" switch could do the deception. When the users hope the boot loader to make active the system windows can't actually say much about the malware part. Then it's presently a matter of hiding and encryption stuff like windows loader does now.

  10. #10
    Join Date
    Jul 2011
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    229

    Re: is UEFI required all windows 8?

    The Linux Company is previously disturbed about this. Though, they cannot implement something on Microsoft. When safe Boot is enabled and cannot be switch off, you can simply use signed boot loaders from which they be acquainted with the certificates. So this is extremely right about this. Also using a key set to use a local KMS-service or compute product keys is the mainly likely achievable solution.

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