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Dom2854873
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Posts: 54
Registered: ‎08-25-2012
Location: Poland
Views: 7,343
Message 21 of 44

Re: Yoga 2 11 USB boot

There is new BIOS 92CN30WW but still no Legacy Mode boot (important - repair power / battery charging problem!).

Dom2854873
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Posts: 54
Registered: ‎08-25-2012
Location: Poland
Views: 7,295
Message 22 of 44

Re: Yoga 2 11 USB boot

Hey, Today I get Yoga 2-11 with Haswell i3-4012Y processor. It's different mainboard platform, with different BIOS AACN13W (not 92CNxxWW). I can say that this version has Legacy Boot Mode - fully working!

Decnart
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Posts: 2
Registered: ‎08-11-2014
Location: Newcastle, UK
Views: 7,191
Message 23 of 44

Re: Yoga 2 11 USB boot

I really cannot understand how a laptop which comes without a CD drive has no option to boot from USB?

 

I've spent all day trying to get this sorted, only to find it's not even remotely possible.

 

It's the Lenovo Yoga 2 with the Intel Pentium N3520, unlike the previous posters model.

 

I take it there is still no solution to this? I updated to the latest bios.

 

BTW, I've just realised previous posters were talking about linux, I'm just trying to install windows 8.1.

 

Is it possible to install windows 8.1 this way?

dafzuka
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Posts: 8
Registered: ‎08-07-2013
Location: Maryland, US
Views: 7,173
Message 24 of 44

Re: Yoga 2 11 USB boot

No solution that I'm aware of. I don't think Lenovo even realizes what a huge problem this is. Case in point - they sent me a USB recovery drive to reimage my HDD....    Once that wouldn't work because of the gimped BIOS, they let me send it to the depot for repair. Basically any time someone needs to reimage their system, it will have to go back to the depot. This is going to be a huge cost to Lenovo so hopefully they push an updated BIOS with full legacy boot support for all models.

Dom2854873
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Posts: 54
Registered: ‎08-25-2012
Location: Poland
Views: 7,166
Message 25 of 44

Re: Yoga 2 11 USB boot

This Recovery USB works, but you need second 16GB stick formated FAT32, next copy all files from "Recovery USB" to this new pendrive. In BIOS set Secure Boot to Disabled. Then you can normally boot from this second pendrive and load recovery Windows.
I'm not sure if this instruction is clear for you.
dafzuka
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Posts: 8
Registered: ‎08-07-2013
Location: Maryland, US
Views: 7,164
Message 26 of 44

Re: Yoga 2 11 USB boot

Thanks for the info! I would try it out but my unit is still at the depot
for repair. Anyone else able try out Dom's suggested instructions?

yangrytuna
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Posts: 15
Registered: ‎08-13-2014
Location: US
Views: 7,141
Message 27 of 44

Re: Yoga 2 11 USB boot

Did you make sure your USB is in the FAT32 format? the newer UEFI bios won't boot or recognize NTFS

dafzuka
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Posts: 8
Registered: ‎08-07-2013
Location: Maryland, US
Views: 7,134
Message 28 of 44

Re: Yoga 2 11 USB boot

Hi! No, I didn't try to reformat it. In this particular case I was trying
to reimage my hdd with an official USB recovery drive Lenovo customer
service sent me. It has a holographic Microsoft license sticker and
everything so I didn't fiddle with it.

Dom2854873
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Posts: 54
Registered: ‎08-25-2012
Location: Poland
Views: 7,115
Message 29 of 44

Re: Yoga 2 11 USB boot

Do it like I sad. It works, but you need to copy original recovery usb to a new USB stick FAT32
nimrodd
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Posts: 1
Registered: ‎09-07-2014
Location: USA
Views: 6,968
Message 30 of 44

Re: Yoga 2 11 USB boot

hi, im having a lot of the same problems mentioned here and was wondering if anyone could help me out.

 

im trying to boot a custom arch linux distro off a live usb.

i made sure the us has been formatted in FAT32, but im still running into difficulties.

when i go into advanced start up (Shift + Resart) i select the EFI USB boot option but what i think to be the BIOS gives me and error saying no USB option listed in boot manager.

 

the BIOS version i have is 92CN30WW (v 1.10)

i have disabled secure boot and fast boot, but am unable to change any other relevant settings.

the boot mode is locked (greyed out) as UEFI, so i cant set it to legacy mode.

i also dont have the "Optimized OS Defaults"/"Other OS" option in the exit section. the setting just isnt there.

 

im really at a loss for what to do at this point. any help would be greatly appreciated.

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