On Sat, Aug 29, 2015 at 1:47 PM, Gordon Messmer
wrote:
> On 08/29/2015 04:42 AM, Paul Cartwright wrote:
>>
>> then if I update ubuntu I have to either do the efibootmgr -o to change
>> to ubuntu OR from fedora run grub-2mkconfig.. with 2 ESPs it is a manual
>> process to keep grub updated for 2 OS
On Sat, Aug 29, 2015 at 5:20 AM, Paul Cartwright wrote:
> On 08/29/2015 01:25 AM, Chris Murphy wrote:
>>> > Then it is necessary to deactivate the Secureboot. This tool was
>>> > implemented in Windows 8 with the new UEFI Bios, as a safety mechanism
>>> > to prevent malicious software from booting
On Sat, Aug 29, 2015 at 1:48 PM, Paul Cartwright wrote:
> grub2-mkconfig will add entries for other operating systems it can find.
> That will be done based on the output of the os-prober tool.
This is why one of my first modifications post-install is to
/etc/default/grub to add
GRUB_DISABLE_OS
On 29/08/15 07:38, Tim Evans wrote:
Looking for experience with upgrading Win 7 to Win 10 on a dual-boot
system.
My Lenovo T530 came with Win 7 pre-installed. I shrunk the Windows
partition and installed F21 (subsequently upgraded via fedup to F22).
Grub2 boot menu offers both Fedora and Win
On 08/29/2015 04:31 PM, Gordon Messmer wrote:
>>> >
>>> >https://fedoraproject.org/wiki/GRUB_2
>> so grub2-efi installs it, but how do you modify/maintain it??
>
> You don't. If you modify the grub2 binary, the signature is invalid
> and the system won't boot (under Secure Boot). There is almost
On 08/29/2015 04:29 PM, Gordon Messmer wrote:
>> that I can deal with.. but there are TWO grub.cfg files which one
>> should I modify with grub2-mkconfig??
>
> The one on the ESP. /boot/grub2/grub.cfg is used under BIOS. It
> normally won't be present on an UEFI system.
this started as a UEFI
On 08/29/2015 01:03 PM, Tom H wrote:
the grub2-install command
>creates a custom grubx64.efi, deletes the original installed one, and looks
>for grub.cfg in /boot/grub2/."
>https://fedoraproject.org/wiki/GRUB_2
I hadn't read that page. I stand corrected.
How nice that Fedora diverges from upstr
On 08/29/2015 12:56 PM, Paul Cartwright wrote:
that I can deal with.. but there are TWO grub.cfg files which one
should I modify with grub2-mkconfig??
The one on the ESP. /boot/grub2/grub.cfg is used under BIOS. It
normally won't be present on an UEFI system.
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On 08/29/2015 12:51 PM, Paul Cartwright wrote:
Not according to the documentation, which indicates that:
>"grub2-install shouldn't be used on EFI systems. The grub2-efi package
>installs a prebaked grubx64.efi on the EFI System partition, which
>looks for grub.cfg on the ESP in/EFI/fedora/ where
On 08/29/2015 12:52 PM, Paul Cartwright wrote:
I will try turning on secure-boot next time I reboot, to see if I can
boot with it turned on.. define "tampered with".. what if you run
grub2-mkconfig.. that tampers with it...
I mean that a root kit can't modify the system firmware, the shim, the
On Sat, Aug 29, 2015 at 2:11 AM, Chris Murphy wrote:
>
> The central problem is that the distros are on a continuum among
> ambivalence, incompetence, and malicious when it comes to multiboot
> cooperation. And GRUB upstream has done a lot of Rube Goldberg
> innovation to try to solve this problem
On Sat, Aug 29, 2015 at 2:59 PM, Gordon Messmer
wrote:
> On 08/29/2015 03:20 AM, Tom H wrote:
>>
>> grub2-install works on non-SB systems.
>> And there's no reason that it shouldn't work on SB systems. Aren't the
>> grub and shim executables simply copied from "/usr/something"? So they
>> should b
On 08/29/2015 03:55 PM, Tom H wrote:
>> >
>> > Therefore, this tool will block any operating system from starting,
>> > besides Windows 8. So it must be deactivated.
> That URL's inaccurate.
>
> Fedora (and Ubuntu) have an MS-signed shim that interfaces between the
> EFi firmware's SB and grub.
I o
On 08/29/2015 03:43 PM, Tom H wrote:
>> > oh, I get it.. but still I don't get it... /boot/efi is a separate
>> > partition.. how can /EFI/ubuntu & /EFI/fedora be different... when they
>> > are both under /boot/efi..
> Ubuntu's mounting sda1 at "/boot/efi" and Fedora's mounting sda8 there.
I have
On 08/29/2015 03:33 PM, Gordon Messmer wrote:
>> every time you boot into a specific distro, update the system, and
>> install a new kernel, well, then grub needs to be updated.
>
> To be clear: the grub configuration needs to be updated. Grub, the
> program, does not. Installing a new kernel doe
On 08/29/2015 03:47 PM, Gordon Messmer wrote:
>>
>
> Just pick which system's grub you want to use, and you can stop
> fiddling with efibootmgr. Use grub2-mkconfig in your "primary" system
> to build a complete cfg file.
I want fedora, I just want ubuntu updated so the primary works for me:)
I
On Fri, Aug 28, 2015 at 9:37 PM, Paul Cartwright wrote:
>
> http://www.instructables.com/id/Dual-Boot-Ubuntu-and-Windows-8-UEFI/step4/Deactivating-Fast-Startup-and-Secureboot/
>
> Then it is necessary to deactivate the Secureboot. This tool was
> implemented in Windows 8 with the new UEFI Bios, as
On 08/29/2015 03:11 PM, Gordon Messmer wrote:
>>
>
> Secure Boot is an effective mitigation against some features of root
> kits, and really should be enabled everywhere possible.
>
> Under Secure Boot, the firmware will not load a boot loader if it has
> been tampered with, which will not load a k
On 08/29/2015 02:59 PM, Gordon Messmer wrote:
>> grub2-install works on non-SB systems.
>> And there's no reason that it shouldn't work on SB systems. Aren't the
>> grub and shim executables simply copied from "/usr/something"? So they
>> should be signed.
>
that was not my writing, someone else se
On 08/29/2015 03:00 PM, Gordon Messmer
wrote:
it
would really be nice if there was some HOW-TO or documentation
on all
this new UEFI/shim packages...
There is.
https://fedoraproject.or
On 08/29/2015 04:42 AM, Paul Cartwright wrote:
then if I update ubuntu I have to either do the efibootmgr -o to change
to ubuntu OR from fedora run grub-2mkconfig.. with 2 ESPs it is a manual
process to keep grub updated for 2 OSes..
Just pick which system's grub you want to use, and you can st
On Fri, Aug 28, 2015 at 6:22 PM, Paul Cartwright wrote:
> On 08/28/2015 05:18 PM, Gordon Messmer wrote:
>>
>> From your first message, efibootmgr printed:
>>
>> Boot0002* Fedora
>> HD(8,GPT,ac2fc695-5de9-47d0-a19b-01e236404130,0x5ae5d800,0x2f800)/File(\EFI\fedora\shim.efi)
>>
>> ...
>> Boot0004* u
On 08/28/2015 06:48 PM, Paul Cartwright wrote:
every time you boot into a specific distro, update the system, and
install a new kernel, well, then grub needs to be updated.
To be clear: the grub configuration needs to be updated. Grub, the
program, does not. Installing a new kernel does not
On 08/29/2015 04:20 AM, Paul Cartwright wrote:
that may be true, but however I got my fedora installed on this UEFI box
is the way I am leaving it.. I am pretty sure I have secure boot turned
off. it works, and I go with the KISS method, it works, I'm leaving it
alone:)
Secure Boot is an effect
On 08/29/2015 04:15 AM, Paul Cartwright wrote:
it would really be nice if there was some HOW-TO or documentation on all
this new UEFI/shim packages...
There is.
https://fedoraproject.org/wiki/GRUB_2
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On 08/29/2015 03:20 AM, Tom H wrote:
grub2-install works on non-SB systems.
And there's no reason that it shouldn't work on SB systems. Aren't the
grub and shim executables simply copied from "/usr/something"? So they
should be signed.
Not according to the documentation, which indicates that:
"
On 08/29/2015 07:04 PM, Frederic Muller wrote:
> On 08/29/2015 06:40 PM, Frederic Muller wrote:
>> On 08/29/2015 04:33 PM, Michael D. Setzer II wrote:
Try adding nosmp to the kernel boot option??
I've seen the same thing with my phenomii quad core system when booting
with a 4.1x or
On 08/29/2015 06:40 PM, Frederic Muller wrote:
> On 08/29/2015 04:33 PM, Michael D. Setzer II wrote:
>> > Try adding nosmp to the kernel boot option??
>> > I've seen the same thing with my phenomii quad core system when booting
>> > with a 4.1x or 4.2x kernel? Same kernels work fine on a quad core
On 08/29/2015 06:28 AM, Tom H wrote:
> I just went back to your initial email.
>
> The Ubuntu and Fedora ESPs are different. Ubuntu's is sda1 and Fedora's is
> sda8.
>
> Are you looking for the Ubuntu ESP while booted into Fedora or Ubuntu?
>
> I remember an old thread/bug where someone complained
On 08/29/2015 04:33 PM, Michael D. Setzer II wrote:
> Try adding nosmp to the kernel boot option??
> I've seen the same thing with my phenomii quad core system when booting
> with a 4.1x or 4.2x kernel? Same kernels work fine on a quad core i7, so not
> sure if it is a phenomii or kernel issue wi
On 08/29/2015 02:11 AM, Chris Murphy wrote:
>> > when I installed ubuntu after that, ubuntu became the default, and grub
>> > had 3 entries for fedora, plus windows 10, plus ubuntu.
> The central problem is that the distros are on a continuum among
> ambivalence, incompetence, and malicious when it
On 08/29/2015 01:25 AM, Chris Murphy wrote:
>> > Then it is necessary to deactivate the Secureboot. This tool was
>> > implemented in Windows 8 with the new UEFI Bios, as a safety mechanism
>> > to prevent malicious software from booting in your PC, as well as “non
>> > authorized” operating system
On 08/29/2015 02:17 AM, Chris Murphy wrote:
>> > https://fedoraproject.org/wiki/GRUB_2
>> >
>> > yum install grub2-efi grub2-efi-modules shim
> grub2-efi-modules is not necessary unless you plan on going off the
> rails with GRUB modules that aren't baked into the signed Fedora GRUB
> EFI OS Loader
On 08/29/2015 06:20 AM, Tom H wrote:
>> > grub2-install does not apply on UEFI systems at all, it should not be
>> > used. Instead you reinstall shim and grub2-efi packages.
> grub2-install works on non-SB systems.
SB-systems?
>
> And there's no reason that it shouldn't work on SB systems. Aren't t
On Fri, Aug 28, 2015 at 1:33 PM, Paul Cartwright wrote:
>
> I just mounted my ubuntu "/" partition and /boot/efi was... empty.
> I'm pretty sure it was there when I booted ubuntu.. oh wait... /boot/efi
> is a separate partition.. but it is already mounted, and it is fedora,
> not ubuntu... ar
On Fri, Aug 28, 2015 at 12:02 PM, Chris Murphy wrote:
> On Wed, Aug 26, 2015 at 10:33 AM, Paul Cartwright
> wrote:
>>
>> I installed my new drive, and everything was fine. I added another OS,
>> and now I can't do the grub2-install anymore. What am I missing??
>>
>> # grub2-install /dev/sda
>> gr
Try adding nosmp to the kernel boot option??
I've seen the same thing with my phenomii quad core system when booting
with a 4.1x or 4.2x kernel? Same kernels work fine on a quad core i7, so not
sure if it is a phenomii or kernel issue with some bios. Same kernels boot fine
if I use nosmp option?
On 08/29/2015 02:13 PM, Ed Greshko wrote:
> On 08/29/15 14:05, Frederic Muller wrote:
>> Yes I did a Google search before but didn't find the same exact issue
>> (as I am stuck looking at the error message). I'll make a 32 bit USB key
>> but then again, should I reinstall and update? I fear it'll t
On 08/29/15 14:05, Frederic Muller wrote:
> Yes I did a Google search before but didn't find the same exact issue
> (as I am stuck looking at the error message). I'll make a 32 bit USB key
> but then again, should I reinstall and update? I fear it'll take me to
> the same problem. Should I downgrad
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