Does OS play any part in MB detecting bootable device?
Hello All, I recently posted about my troubles booting from a DVD. It turns out that my MB bios will only detect UEFI boot structures and any devices (USB, DVD) with pre UEFI (legacy) boot structure is not detected...ie. never show up in the boot menu. I have been trying to get a resolution to this from the MB manufacturer. To make a long story short, they claim that the MB will boot legacy boot structures with particular bios settings, which I am using. They also assert that they do not support linux and the linux driver is the issue, and that I should install Windows and test if I still have the problem. It has been my understanding that any OS driver will only come into play after the bios has detected the boot device and commenced the boot process by loading the OS/driver/whatnot from the bootable device. Is the MB manufacturer correct to say that the linux driver is the cause of the problem? Cheers, -- Regards, Terry Duell
On 30/01/15 10:10, Terry Duell wrote:
To make a long story short, they claim that the MB will boot legacy boot structures with particular bios settings, which I am using. They also assert that they do not support linux and the linux driver is the issue, and that I should install Windows and test if I still have the problem.
To be fair to the motherboard manufacturer, this is a valid test. It is entirely possible the UEFI implementation has only ever been tested with Windows. It is a useful test to be able to see whether the system is actually able to boot at all off removable media. You don't even have to purchase Windows to do this -- you can download the Windows 10 beta. Simply download one of the 64-bit ISOs from this URL: <http://windows.microsoft.com/en-au/windows/preview-iso> Either burn that ISO to a DVD, or format a USB drive as FAT32 and copy the *contents* of the ISO (not the ISO itself) to the USB drive. Then attempt to boot off it.
Is the MB manufacturer correct to say that the linux driver is the cause of the problem?
For one distro, certainly a possibility. For additional data points, test multiple distros, and follow instructions *to the letter*. I also suggest testing against multiple UEFI implementations, to enable you to say "same media works on this, but doesn't work on this".
Hello Jeremy, On Fri, 30 Jan 2015 10:35:36 +1100, Jeremy Visser <jeremy@visser.name> wrote:
On 30/01/15 10:10, Terry Duell wrote:
To make a long story short, they claim that the MB will boot legacy boot structures with particular bios settings, which I am using. They also assert that they do not support linux and the linux driver is the issue, and that I should install Windows and test if I still have the problem.
To be fair to the motherboard manufacturer, this is a valid test. It is entirely possible the UEFI implementation has only ever been tested with Windows. It is a useful test to be able to see whether the system is actually able to boot at all off removable media.
The issue at this stage is one of detecting a bootable device...it has to do that before it can be booted, and in the case of my MB no legacy bootable devices are detected, but UEFI bootable devices are. If there is a convincing argument that the OS affects the detection of a bootable device, I'll certainly try with Windows. Cheers, -- Regards, Terry Duell
Hi Terry, I've successfully booted Linux media on the same or a very similar Asus Z97 motherboard, so from that point of view, you should be fine to use Linux if that's what you're worried about. I would have been booting off UEFI USB media though, rather than a legacy DVD, so you may want to try a modern Linux distro. I replied to your original post with some BIOS boot suggestions. Other suggestions: * Have you confirmed that your legacy DVD boots in other PCs? * Have you upgraded the motherboard BIOS to the latest version? -Toby On 30 January 2015 at 10:10, Terry Duell <tduell@iinet.net.au> wrote:
Hello All, I recently posted about my troubles booting from a DVD. It turns out that my MB bios will only detect UEFI boot structures and any devices (USB, DVD) with pre UEFI (legacy) boot structure is not detected...ie. never show up in the boot menu. I have been trying to get a resolution to this from the MB manufacturer. To make a long story short, they claim that the MB will boot legacy boot structures with particular bios settings, which I am using. They also assert that they do not support linux and the linux driver is the issue, and that I should install Windows and test if I still have the problem. It has been my understanding that any OS driver will only come into play after the bios has detected the boot device and commenced the boot process by loading the OS/driver/whatnot from the bootable device. Is the MB manufacturer correct to say that the linux driver is the cause of the problem?
Cheers, -- Regards, Terry Duell _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main
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Terry Duell wrote:
Is the MB manufacturer correct to say that the linux driver is the cause of the problem?
"Go away. it is not our problem; see that guy on the horizon who is waving; .........................see him it's all his fault ! " :-) Given the problems with getting say USB's to boot any OS; there are obviously BIOS issues with boot-loaders; but presumably even the issue of varieties of filesystems; is post BIOS. What on earth did they intend by "linux driver " in this context ? regrards Rohan mcLeod
Cheers,
On 30 January 2015 at 10:10, Terry Duell <tduell@iinet.net.au> wrote:
It turns out that my MB bios will only detect UEFI boot structures and any devices (USB, DVD) with pre UEFI (legacy) boot structure is not detected...ie. never show up in the boot menu. I have been trying to get a resolution to this from the MB manufacturer.
Have you tried a booting an EFI Linux CDROM?
From memory the Debian wheezy installer supports EFI. I also see work being done on EFI in the Jessie installer <http://blog.einval.com/>.
Of course, if you cannot turn off secure EFI boot, that could be a bigger issue. I think Ubuntu (and maybe others) might have signed EFI CD images, not absolutely sure however. -- Brian May <brian@microcomaustralia.com.au>
On 30 January 2015 at 14:59, Brian May <brian@microcomaustralia.com.au> wrote:
On 30 January 2015 at 10:10, Terry Duell <tduell@iinet.net.au> wrote:
It turns out that my MB bios will only detect UEFI boot structures and any devices (USB, DVD) with pre UEFI (legacy) boot structure is not detected...ie. never show up in the boot menu. I have been trying to get a resolution to this from the MB manufacturer.
Have you tried a booting an EFI Linux CDROM?
From memory the Debian wheezy installer supports EFI. I also see work being done on EFI in the Jessie installer <http://blog.einval.com/>.
Of course, if you cannot turn off secure EFI boot, that could be a bigger issue. I think Ubuntu (and maybe others) might have signed EFI CD images, not absolutely sure however.
Ubuntu's releases have been signed for Secure Boot for a few years now, I think since the 12.04 LTS release maybe? As it turned out, Terry's problem was not related to secure boot though. Toby
participants (5)
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Brian May -
Jeremy Visser -
Rohan McLeod -
Terry Duell -
Toby Corkindale