Stephen John Smoogen wrote:
> Can you try to see if Fedora 27 has the same problem? If it has then
> this is a problem that upstream needs to fix on EL releases. If it
> isn't then I would lean more towards the motherboard/bios combo
> saying something which says "my legacy support is iffy.. use
So is the end goal to have dual boot? You want to preserve the existing
Cent OS installation on this drive and also install Cent OS 7?
The biggest problem is the installer is really not very smart when it comes
to this use case. It's friendly for Windows and macOS dual boot, but fairly
well facepl
On Thu, Feb 15, 2018 at 5:18 PM, Stephen John Smoogen
wrote:
> The only other thing I can think of is that the disk was already
> formatted to GPT. In that case it has to be EFI. [I had a disk which
> was GPT partitioned and removing that was quite a challenge as I had
> done a 'dd if=/dev/zero o
On Thu, Feb 15, 2018, 4:18 PM Stephen John Smoogen wrote:
>
> The only other thing I can think of is that the disk was already
> formatted to GPT. In that case it has to be EFI. [I had a disk which
> was GPT partitioned and removing that was quite a challenge as I had
> done a 'dd if=/dev/zero of
On Thu, Feb 15, 2018, 3:19 PM Yves Bellefeuille wrote:
> I have a UEFI system, but I want to install CentOS on a MBR (not GPT)
> hard disk.
>
Why?
While the UEFI spec permits using MBR for booting, it's confusing because
there's no actual single standard for MBR. There is for GPT.
Anyway, all
On 15 February 2018 at 21:48, Yves Bellefeuille wrote:
> Stephen J Smoogen wrote:
>
>> OK wild guess on install options as sometimes they will do this but
>> not say they did it. Try adding inst.gpt=false to the boot line.
>
> Sorry, that didn't work. Nor did installing CentOS 7 without a boot
>
Stephen J Smoogen wrote:
> OK wild guess on install options as sometimes they will do this but
> not say they did it. Try adding inst.gpt=false to the boot line.
Sorry, that didn't work. Nor did installing CentOS 7 without a boot
loader, chroot-ing into it, and trying to install grub2 manually:
On Thu, Feb 15, 2018 at 06:45:51PM -0500, Yves Bellefeuille wrote:
> Stephen John Smoogen wrote:
>
> > I am guessing because my drives were blank and smaller than 2 TB that
> > it defaulted to MBR even when the system had a UEFI BIOS (as long as
> > the firmware is in legacy mode).
>
> Right, th
On 15 February 2018 at 18:45, Yves Bellefeuille wrote:
> Stephen John Smoogen wrote:
>
>> I am guessing because my drives were blank and smaller than 2 TB that
>> it defaulted to MBR even when the system had a UEFI BIOS (as long as
>> the firmware is in legacy mode).
>
> Right, the problem seems
Stephen John Smoogen wrote:
> I am guessing because my drives were blank and smaller than 2 TB that
> it defaulted to MBR even when the system had a UEFI BIOS (as long as
> the firmware is in legacy mode).
Right, the problem seems to arise if you already have partitions on
your MBR disk. Perhaps
On 15 February 2018 at 18:29, Yves Bellefeuille wrote:
> Stephen John Smoogen wrote:
>
>> OK I am going with documentation not being right and/or I have been
>> very lucky with my installs.
>
> If you read
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installat
Stephen John Smoogen wrote:
> OK I am going with documentation not being right and/or I have been
> very lucky with my installs.
If you read
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/sect-disk-partitioning-setup-x86#sect-bootloader-mbr-gpt
On 15 February 2018 at 18:05, Fred Smith wrote:
> On Thu, Feb 15, 2018 at 05:31:42PM -0500, Stephen John Smoogen wrote:
>> On 15 February 2018 at 17:19, Yves Bellefeuille wrote:
>> > I have a UEFI system, but I want to install CentOS on a MBR (not GPT)
>> > hard disk.
>> >
>> > The installation p
On Thu, Feb 15, 2018 at 05:31:42PM -0500, Stephen John Smoogen wrote:
> On 15 February 2018 at 17:19, Yves Bellefeuille wrote:
> > I have a UEFI system, but I want to install CentOS on a MBR (not GPT)
> > hard disk.
> >
> > The installation program keeps telling me that I must create an "EFI
> > s
Stephen J Smoogen wrote:
> If the installer is doing that then it usually means that the UEFI
> firmware is either
> a) not in BIOS compatibility mode
> b) does not respond in a way that Linux detects or
> c) the disk is larger than what BIOS compatibility mode will allow.
On the MBR disk, I
Sometimes in bios it is called legacy mode
Sent from my iPhone
> On Feb 15, 2018, at 5:31 PM, Stephen John Smoogen wrote:
>
>> On 15 February 2018 at 17:19, Yves Bellefeuille wrote:
>> I have a UEFI system, but I want to install CentOS on a MBR (not GPT)
>> hard disk.
>>
>> The installation p
On 15 February 2018 at 17:19, Yves Bellefeuille wrote:
> I have a UEFI system, but I want to install CentOS on a MBR (not GPT)
> hard disk.
>
> The installation program keeps telling me that I must create an "EFI
> system partition on a GPT disk mounted at /boot/efi".
>
> I can't find a way to wor
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