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324874
Apprentice
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Joined: 26 Jul 2014
Posts: 168

PostPosted: Wed Jan 20, 2016 7:45 pm    Post subject: lack of information about specific uefi implementation Reply with quote

Hi everybody,

My older laptop broke, and, fortunately, I could bought a new one. However, I can't boot from a usb flash drive. The entry in the boot menu doesn't appear !

So I've searched on the web and I've found two posts* about the uefi firmware. My laptop is a Acer Aspire E5 573G. The manufacturer of the uefi is Insyde Software.

On their website they say :

Quote:

We do not provide end user support for systems running on Insyde Software BIOS products. For end user BIOS upgrades or other support for your computer, we recommend contacting your computer manufacturer.


I didn't find documentation about the firmware, maybe we can find few specifications.

On the support section of the Acer's website I didn't find useful documentations about the Insyde's uefi.

I think it's possible to configure some things that are hidden.

Insyde Software website :

Quote:
Highlights:

The most widely used UEFI BIOS in production
Architecture facilitates speeds time to market for new platforms and allows for easy hardware innovation
Support for the latest reference designs from Intel, AMD and VIA
Deploy platforms with multiple OSes with a single secure BIOS
Comprehensive support for the latest UEFI, PI and industry specifications
Easy to create & easy to use library approach to customization provides easy updates to the next generation silicon or the ability to match perfectly with ODM manufacturing lines
Delivers fast boot times, in the low single-digit seconds using our Fast Boot technology



* ------
http://community.acer.com/t5/E-and-M-Series/Acer-Aspire-e5-573g-You-can-not-install-any-one-Linux/td-p/386009
http://community.acer.com/t5/Legacy-Laptops-and-Netbooks/BIOS-F5-571-UEFI-Linux-Ubuntu/td-p/398200
------

So, I'm wondering if all of that is not done to discourage the installation of news operating systems ?

Best regards,

neoptslap
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erm67
l33t
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Joined: 01 Nov 2005
Posts: 624
Location: EU

PostPosted: Wed Jan 20, 2016 9:04 pm    Post subject: Reply with quote

I have a toshiba lappy here with Insyde bios and it can boot from usb.
Try disabling Secure Boot and enabling every bios otion you find with legacy in the name :-)

fastboot must be disabled in the os, otherwise it will always boot windows, (or the os that set the BCD boot next entry before going into hibernation). i.e. boot windows disable it and reboot to bios.
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True ignorance is not the absence of knowledge, but the refusal to acquire it.
Ab esse ad posse valet, a posse ad esse non valet consequentia

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324874
Apprentice
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Joined: 26 Jul 2014
Posts: 168

PostPosted: Thu Jan 21, 2016 7:37 am    Post subject: Reply with quote

Hi,

Thank you for your advice erm67 !

I tried again in legacy mode without the secure mode and the fastboot mode using a cdrom burned with microsoft burning utility and it seems to work out. However, it doesn't work with the usb flash drive burned with an another utility. It starts but then freezes. In my case, I can boot but without cdrom unit I couldn't have. So, I'm "lucky". I think don't give documentation or good informations is a very bad practice and maybe it is volontary about the uefi or in this specific case.

Best regards,

neoptslap
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erm67
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Joined: 01 Nov 2005
Posts: 624
Location: EU

PostPosted: Thu Jan 21, 2016 12:46 pm    Post subject: Reply with quote

most, if not all, uefi implementations are based on http://www.tianocore.org/, in many cases stripping a lot of utils from the tianocore distro. Find out to what version of tiano core UEFI your bios is based and download the full binary distribution. You can than use the shell and other programs from the tiano core binary distro.
You can find in the net many UEFI drivers and programs, for example:
http://efi.akeo.ie/
_________________
Ok boomer
True ignorance is not the absence of knowledge, but the refusal to acquire it.
Ab esse ad posse valet, a posse ad esse non valet consequentia

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324874
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PostPosted: Thu Jan 21, 2016 7:31 pm    Post subject: Reply with quote

Hi,

Thank you erm67 :wink: ! I'll take a look at this open source implementation of uefi and I'll read more about uefi. It seems interesting this evolution of the firmware more precisely the firmware transition, expectations and perspectives it can bring. I'm trying to learn programming more application programming even though I have more preferences for system programming. I know micro-programming is more difficult (often these are experts that working with it) but maybe study uefi's implementation could be useful in the future.

Best regards,

neoptslap
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