Hi,
I have an ASUS R503U which originally came with a Windoze8.1 installation. I have no need for it so I scrapped it. I also, consequently have no need for EFI.
I was wondering if it is required for me to install Fedora 24 on an EFI system. I can not seem to get out of EFI so maybe what I am looking to do is not possible. Is it possible to do the same in an old grub setup.
Many thanks and best wishes, Ranjan
On 09/24/16 22:39, Ranjan Maitra wrote:
I have an ASUS R503U which originally came with a Windoze8.1 installation. I have no need for it so I scrapped it. I also, consequently have no need for EFI.
I was wondering if it is required for me to install Fedora 24 on an EFI system. I can not seem to get out of EFI so maybe what I am looking to do is not possible. Is it possible to do the same in an old grub setup.
Many thanks and best wishes,
FWIW, google "asus r503u disable uefi" and you'll find how to disable uefi for ASUS hardware. It seems it can be done, just that you need the "magic" incantation to get it done. :-)
On Sat, 24 Sep 2016 22:49:29 +0800 Ed Greshko ed.greshko@greshko.com wrote:
On 09/24/16 22:39, Ranjan Maitra wrote:
I have an ASUS R503U which originally came with a Windoze8.1 installation. I have no need for it so I scrapped it. I also, consequently have no need for EFI.
I was wondering if it is required for me to install Fedora 24 on an EFI system. I can not seem to get out of EFI so maybe what I am looking to do is not possible. Is it possible to do the same in an old grub setup.
Many thanks and best wishes,
FWIW, google "asus r503u disable uefi" and you'll find how to disable uefi for ASUS hardware. It seems it can be done, just that you need the "magic" incantation to get it done. :-)
Magic indeed! I tried these tips actually, but it did not seem to make much of a difference. I guess I will try and get the potions right.
Is there any long-term advantage to install on EFI? I do not have Windoze installed and I do no want it on the machine.
I seem to know about EFI even less than I do about Windoze.
Best wishes, Ranjan
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On Sat, 24 Sep 2016 10:13:19 -0700 Gordon Messmer gordon.messmer@gmail.com wrote:
On 09/24/2016 08:35 AM, Ranjan Maitra wrote:
Is there any long-term advantage to install on EFI?
Secure Boot should prevent kernel-modifying rootkits, for one.
I don't know what the last means (sorry) but I have Secure Boot disabled, as additional information.
THanks again!
Ranjan
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On 09/24/2016 11:13 AM, Gordon Messmer wrote:
On 09/24/2016 08:35 AM, Ranjan Maitra wrote:
Is there any long-term advantage to install on EFI?
Secure Boot should prevent kernel-modifying rootkits, for one.
But old PC's do not have uefi in BIOS. So it seems old pc's will not benefit from it???
On 09/24/2016 10:25 AM, Ranjan Maitra wrote:
I don't know what the last means
It means that Red Hat cryptographically signs the grub bootloader, the kernel, and kernel modules that ship with Fedora, and they won't be loaded if they've been modified. A rootkit might modify the kernel, or a module, or introduce a module of its own that changes the kernel's behavior to prevent detection or removal of the rootkit. Secure Boot would prevent that rootkit from loading.
On 09/24/2016 10:44 AM, jd1008 wrote:
Secure Boot should prevent kernel-modifying rootkits, for one.
But old PC's do not have uefi in BIOS. So it seems old pc's will not benefit from it???
The question was, "are there any benefits to UEFI?"
Will PCs that don't have UEFI benefit from UEFI features? No, obviously not.
On Sat, 24 Sep 2016 10:58:05 -0700 Gordon Messmer gordon.messmer@gmail.com wrote:
On 09/24/2016 10:44 AM, jd1008 wrote:
Secure Boot should prevent kernel-modifying rootkits, for one.
But old PC's do not have uefi in BIOS. So it seems old pc's will not benefit from it???
The question was, "are there any benefits to UEFI?"
Will PCs that don't have UEFI benefit from UEFI features? No, obviously not.
I understand, but what are these benefits?
Many thanks, Ranjan
____________________________________________________________ Can't remember your password? Do you need a strong and secure password? Use Password manager! It stores your passwords & protects your account. Check it out at http://mysecurelogon.com/password-manager
On Sat, Sep 24, 2016 at 8:49 AM, Ed Greshko ed.greshko@greshko.com wrote:
On 09/24/16 22:39, Ranjan Maitra wrote:
I have an ASUS R503U which originally came with a Windoze8.1 installation. I have no need for it so I scrapped it. I also, consequently have no need for EFI.
I was wondering if it is required for me to install Fedora 24 on an EFI system. I can not seem to get out of EFI so maybe what I am looking to do is not possible. Is it possible to do the same in an old grub setup.
Many thanks and best wishes,
FWIW, google "asus r503u disable uefi" and you'll find how to disable uefi for ASUS hardware. It seems it can be done, just that you need the "magic" incantation to get it done. :-)
I really wish people would qualify their answers rather than giving people razor blades like this and telling them to go play on the freeway.
UEFI!=BIOS
A system withe UEFI cannot have UEFI turned off. That the manufacturers treat their users with contempt by lying to them with UEFI Enable/Disable switches does not mean it's true this is possible. That feature just enables a compatibility support module to present an emulated BIOS to the OS instead of a UEFI interface. It's meant for legacy OS's that don't grok UEFI, and Fedora is not such a legacy OS. What you give up with the CSM depends on the implementation, there's no way to know this in advance without a lot of testing. But my testing has revealed much worse performance across the board: SSD's are slower because they're seen as IDE drives instead of using AHCI, and likewise the power management for GPU, USB, and CPU p states is also limited. Again, it depends on the hardware.
So you're better off a.) keeping the firmware up to date, as there's a metric s tonne of bugs compared to BIOS based firmware b.) using its defaults and otherwise just leave it alone and install Fedora.
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Chris Murphy -
Ed Greshko -
Gordon Messmer -
JD -
Ranjan Maitra