thanks
i removed one of them and i used ubu to update to 12.9 (it should be the last compatible with 6-series)
i can add the gop driver for sandy 45kb
but i cannot add the sata efi driver 190kb or the comp efi 75kb because of file size exceeds the volume size in MMTOOL 4.5

no way
the efi sata is too big
i have to delete all my orom sata to insert the efi one
so,
a good idea could be: can i delete the realtek lan orom? is it wake on lan ONLY?
or
will my oses work with the efi sata in both legacy and efi? Do i need orom and efi?

I added efi gop and efi satadriver 12.9 but i cannot boot efi linux
cannot write policy error

i m still running orom sata 10.5, could this be the problem?
shoul i see any new bios option with these new drivers?

is there any solution?

1 hdd 1tb sata 3 (replaced the old hdd)
AHCI mode to boot os x

i m trying to boot linux from a dvd
it does boot in a new pc with uefi

I did not read all the posts in this thread, but I can't see anything about Secure Boot.
If Secure Boot is enabled in BIOS, change it to disabled.
If you can't change it, set a suporvisor password, then the locked security options will be unlocked.

But first of all, is the Secure Boot option there?
And if you don't have an option to turn on UEFI mode or switch off CSM, then maybe UEFI is disabled by ASUS.
I know several Acer, ASUS, HP models with UEFI mode completely locked away.

Oh BTW: Intel 6-Series chipsets where never meant to completley disable CSM and use UEFI only mode...
Some 6-Series boards support UEFI, some don't. It's all a decision of the design team...

i don t have a Secure Boot option
i don t have a CSM option

i already unlocked every tab/option
i also checked amibcp but there s no secure boot or csm

i have UEFI BOOT and Legacy USB options set to true and false
i can see UEFI:device name in my boot menu

the exact error is "failed to install override security policy: 14 (not found)"

Zitat von kyl im Beitrag #25

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the exact error is "failed to install override security policy: 14 (not found)"

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i did this too

but the best thing would be fix the bios to boot any media with uefi

Zitat von kyl im Beitrag #27

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i did this too

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yea but it freezes

what kind of informations you need
now i m trying to boot windows 10
i m using rufus usb and selected gtp for uefi
it does load the logo and when the loading animation starts, it freezes and the hdd led does not blink

So further investigation revealed, that the ASUS X53SJ laptop is not UEFI compatible.
Its sister model K53SV (they both are K-models, it's just the different region) was also not UEFI compatible.
The K53SV showed the same symptoms like yours and was fixed by ASUS with a BIOS update.
So modding your BIOS is useless and the solution lies right there.

PS: K53SJ and K53SV even show the same BIOS changelog, but I don't know if they are compatible.
Crossflashing a BIOS is not recommended nor suggested!
If you perform such a crossflash, you do it at your own risk.
Neither I nor anyone in this forum, are responsible for any damage.

EDIT: you should at least check if the microcode and the VBIOS modules match your current configuration!

thanks

i sent an email to Asus

so you think that with a cross-flash i could fix uefi?

is it possible to just extract the fixed module and replace it in my bios?