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UEFI booting of Partition 2 'Win8.1_x64.WIM' via FAT32-Active-Partition 1 'EFI Boot Files' ?

uefi booting efi files uefi mode uefi bcd bootmgr.efi efi folder boot manager wim files bootx64.efi fat32 active removable usb

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#1 devdevadev

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Posted 29 June 2014 - 04:00 AM

Hello Everyone.....

 

AFAIK, Following are the bare minimum files required for UEFI booting of WIM files via Boot Manager -

 

\bootmgr.efi 

\EFI\microsoft\boot\BCD 

\EFI\boot\bootx64.efi or \EFI\boot\bootx32.efi

 

Am I right or not ? I am am wrong then please tell me about the bare minimum UEFI/EFI files required for UEFI booting!

 

Will UEFI booting be happen if I put bare minimum UEFI boot files into FAT32 Active 'Partition 1' and keep 'Win8.1_x64.WIM' file into FAT32/NTFS hidden 'Partition 2' ?

 

Note- I will use a fixed path when creating the UEFI BCD store menu entries with the help of Bootice/BCD Edit . My USB Drives is of 'Removable' type...........

 

Any related UEFI information will be highly appreciated. Please share your precious UEFI based experience and knowledge with me...................... 

 

 

Regards...........

 

 

:cheers:


Edited by devdevadev, 29 June 2014 - 04:03 AM.


#2 misty

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Posted 29 June 2014 - 08:31 AM

I think that \bootmgr.efi is only required when booting from a CD. You could do a quick test in a VM - I don't have the time at the moment.

I don't have a UEFI system myself and asked the kind reboot.pro forum members for advice about USB UEFI booting here - this thread may prove useful.

You can rename \Windows\boot\EFI\bootmgfw.efi as \EFI\boot\bootx64.efi if this file is missing.

Regards,

Misty
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#3 misty

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Posted 29 June 2014 - 08:51 AM

Your goal appears to be to partition a removable type USB disk with two partitions - one of which you refer to as "Super Hidden" in other posts? And you want to put the boot files on the visible partition and boot.wim (or Win8.1_x64.WIM in your case) on the hidden partition?

I don't know about more recent versions of Windows, but the last time I played around with multiple partitions on a Removable USB disk I was using Windows XP - I required a filter driver in order to be able to access the additional partitions (the Hitachi Microdrive Filter). Assuming you can access both partitions under Windows (through a filter or natively), then it should be easy for you to run a test.

I'd recommend using a visible partition to start with - if this works, then set the partition as hidden and retest. For the test - create a BCD store on the first partition. Add the entries required for WinPE to the BCD store and (assuming the first partition is mounted as drive D: and the second partition is mounted as E: as in this example) make sure the paths are set -
bcdedit.exe /store D:\EFI\microsoft\boot\BCD /set {guid} osdevice ramdisk=[E:]\Win8.1_x64.WIM,{ramdiskoptions}
bcdedit.exe /store D:\EFI\microsoft\boot\BCD /set {guid} device ramdisk=[E:]\Win8.1_x64.WIM,{ramdiskoptions}
This is from memory - you may need to tweak this. You will also need to set {ramdiskoptions} to point to your .sdi file.

diddy's BCDEdit notes might prove useful - see http://diddy.boot-land.net/bcdedit/

EDIT - the Devices section in diddy's guide should prove particularly useful - http://diddy.boot-la...iles/device.htm

Regards,

Misty

#4 cdob

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Posted 29 June 2014 - 09:41 AM

tell me about the bare minimum UEFI/EFI files required for UEFI booting!

Will UEFI booting be happen if I put bare minimum UEFI boot files into FAT32 Active 'Partition 1' and keep 'Win8.1_x64.WIM' file into FAT32/NTFS hidden 'Partition 2' ?

Default bare files:
\EFI\Boot\bootia32.efi x86 hardware / firmware
\EFI\Boot\bootx64.efi amd64 hardware / firmware
\EFI\Microsoft\Boot\BCD
\EFI\Microsoft\Boot\Fonts\wgl4_boot.ttf recommended
\boot\boot.sdi
\sources\boot.wim

If you edit the bcd file, then you can relocate boot.sdi or boot.wim.
And use Win8.1_x64.WIM instead of boot.wim.

Yes, booting works a second active partition at removable USB drive.
However, different EFI implementations may give different results.
UEFI specs dosn't clarify using all 4 MBR partition list entries.
A manufacturer may support first partiton entry only or all four entries.

VMware Player integrated EFI Boot Manger detects a connected EFI USB Device.
EFI USB booting is possible at VMware Player.

#5 devdevadev

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Posted 29 June 2014 - 11:58 AM

@cdob

 

:worship: First tons of thanks and honor for sharing such a useful information......

 

Yes, booting works a second active partition at removable USB drive.

 

I could not understand which partition I should have to keep as 'Active' either 'Partition 1' or 'Partition 2' ?

 

Actually I want to keep as much as possible Files in the hidden 'Partition 2'. So that both UEFI+BIOS booting work properly. If possible then I will also prefer to keep 'EFI Folder and UEFI files' in the 'Partition 2' instead of 'Partition 1'.

 

Some expert told me that UEFI can only boot from FAT32 Active Partition 1. Is it correct or not ?

 

A manufacturer may support first partiton entry only or all four entries.

 

Will it  be better if I put 'EFI Folder and UEFI files' in both 'Partition 1' and 'Partition 2' ?

 

So, please suggest me a good solution for following doubts -

 

1- In which Partition I should keep 'EFI Folder and UEFI files' so that both UEFI and BIOS booting works properly ?

 

2- Which 'Partition' I should keep as 'Active' Partition so that both UEFI and BIOS booting works properly ?

 

So till now I could understand following points -

 

------------------------------------------------------------------------------------------------------------

Default bare UEFI files:

\EFI\Boot\bootia32.efi                                - x86 hardware / firmware
\EFI\Boot\bootx64.efi (bootmgfw.efi )    - amd64 hardware / firmware

\EFI\Microsoft\Boot\BCD
\EFI\Microsoft\Boot\Fonts\wgl4_boot.ttf  - Recommended
 

Default bare BIOS/MBR files:

\bootmgr

\boot\BCD

 

Common files which can be relocate/Fix in any Disk/Partition by BCD Editing:

\boot\boot.sdi

\sources\boot.wim

--------------------------------------------------------------------------------------------------------------
 

Is is possible to keep each and every above files in the hidden 'Partition 2' of 'Removable' USB Drive so that both UEFI and BIOS booting works properly ?

 

Lots of thanks and Regards for Everything.......... :worship: 


Edited by devdevadev, 29 June 2014 - 12:22 PM.


#6 devdevadev

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Posted 29 June 2014 - 02:04 PM

@Misty

:worship: Thanks for your Great Support and Help............

 

I think that \bootmgr.efi is only required when booting from a CD. You could do a quick test in a VM - I don't have the time at the moment.

I don't have a UEFI system myself and asked the kind reboot.pro forum members for advice about USB UEFI booting here - this thread may prove useful.

You can rename \Windows\boot\EFI\bootmgfw.efi as \EFI\boot\bootx64.efi if this file is missing.

 

Thanks for sharing very useful UEFI discussion link with me. I have got lots of fresh knowledge from your thread........  

 

Your goal appears to be to partition a removable type USB disk with two partitions - one of which you refer to as "Super Hidden" in other posts? And you want to put the boot files on the visible partition and boot.wim (or Win8.1_x64.WIM in your case) on the hidden partition?

 

Definitively, I want exactly the same. But after reading cdob line "A manufacturer may support first partiton entry only or all four entries." . I think that I will have to put Boot Files (both BIOS and UEFI files) in both 'Partition 1' and 'Partition 2'. And will have to make 'Partition 1' as 'Active' Partition. After that I will use 'Attrib' commands in order to Hide each and every content of both Partitions so that 'Boot Files' of 'Partition 1' be Invisible.

 

I was using Windows XP - I required a filter driver in order to be able to access the additional partitions (the Hitachi Microdrive Filter). Assuming you can access both partitions under Windows (through a filter or natively), then it should be easy for you to run a test.

 

I tried to search for a Win8.1SE script for 'Filter Driver', but not found any script till now. And finally I have to use 'DISM GUI 3.5' in order to integrate cfadisk/diskmod filter driver into 'boot.WIM' file.

 

I'd recommend using a visible partition to start with - if this works, then set the partition as hidden and retest. For the test - create a BCD store on the first partition. Add the entries required for WinPE to the BCD store and (assuming the first partition is mounted as drive D: and the second partition is mounted as E: as in this example) make sure the paths are set -

bcdedit.exe /store D:\EFI\microsoft\boot\BCD /set {guid} osdevice ramdisk=[E:]\Win8.1_x64.WIM,{ramdiskoptions}
bcdedit.exe /store D:\EFI\microsoft\boot\BCD /set {guid} device ramdisk=[E:]\Win8.1_x64.WIM,{ramdiskoptions}
This is from memory - you may need to tweak this. You will also need to set {ramdiskoptions} to point to your .sdi file.

diddy's BCDEdit notes might prove useful - see http://diddy.boot-land.net/bcdedit/

EDIT - the Devices section in diddy's guide should prove particularly useful - http://diddy.boot-la...iles/device.htm

 

Thanks for describing things in such a simple and detailed manner. Actually I am not so comfortable with command lines due to very low Vison of my Eyes, It's why I have to use 'Bootice/BCD Edit' in order to edit/modify 'BCD Store Entries'.

 

Regards........... :worship: 

 



#7 cdob

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Posted 29 June 2014 - 04:51 PM

I could not understand which partition I should have to keep as 'Active' either 'Partition 1' or 'Partition 2' ?

Set bootmgr \boot\bcd partition active.
 

Some expert told me that UEFI can only boot from FAT32 Active Partition 1. Is it correct or not ?

EFI files are possible at Partition 2 at a lot of systems.
 

So, please suggest me a good solution for following doubts -

This depends on used hardware: All is possible and all will fail.
There is no final answer.
Try all 'Partition 2' at your hardware yourself.

#8 devdevadev

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Posted 29 June 2014 - 05:43 PM

@ cdob, Steve, Misty

 

Misty -

[13] - if removable media with one FAT32 partition is used then this partition can also be set as active and the same device can be booted on BIOS based systems providing that bootmgr and \boot\BCD are also present?

 

Steve -

In theory the partitions 'Active' flag could be set or cleared - it shouldn't matter for UEFI booting. It also shouldn't matter for MBR booting - e.g. grub4dos mbr will boot to grub4dos in MBR mode even if no partition is marked as Active - it depends on what the MBR boot code does. In practice, some MBR BIOSes do seem to need an active partition.

 

So, As far as I could understand -

 

UEFI -  There is no need to set 'Partition 1' as 'Active' for UEFI booting ?

 

BIOS -  It may need 'Partition 2' as Active in some MBR BIOSes. So I have to keep 'Partition 2' as Active because I will also put both bootmgr and  \boot\bcd in 'Partition 2'. But what should I have to install in 'MBR Boot Code' either 'Grub4dos (grldr)' or 'Boot Manager (bootmgr)' ?

 

 

Regards............  :worship: 


Edited by devdevadev, 29 June 2014 - 06:34 PM.


#9 devdevadev

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Posted 29 June 2014 - 06:28 PM


EFI files are possible at Partition 2 at a lot of systems.

 

Hello 'cdob'

 

Will UEFI booting also be happen if I put same 'EFI files' in both 'Partition 1' and 'Partition 2' ?

 

Regards....... :) 



#10 steve6375

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Posted 29 June 2014 - 06:45 PM

UEFI boots from the first FAT/FAT16/FAT32/(ESP) partition it finds on the disk. You could boot to either of the EFI files via Clover...

 

Again, it may be that some UEFI implementations will only 'look' at the first partition and ignore all others...



#11 devdevadev

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Posted 29 June 2014 - 07:34 PM

Hi 'Steve'........

 

UEFI boots from the first FAT/FAT16/FAT32/(ESP) partition it finds on the disk. You could boot to either of the EFI files via Clover...

 

It means keeping both 'Partition 1' and 'Partition 2' as FAT32 file system will be more safe for me in order to sure UEFI booting of WIM file. So In case 'EFI Files' of 'Partition 1' be deleted accidentally then 'EFI Files' of 'Partition 2' will perform UEFI booting of WIM file.

       As I am a fan of 'E2B' and '.imgPTN' files and always keep them in 'Partition 2' . So I also can use Clover whenever UEFI booting via System Firmware become failed.

         

Again, it may be that some UEFI implementations will only 'look' at the first partition and ignore all others...

 

Normally I will always keep 'attrib' hidden 'EFI Files' in both FAT32 'Partition 1' and in FAT32 'Partition 2' ......................

Currently I am also thinking about adding HALIKUS's 'EFI Folder Files ( contains Boot, Clover,microsoft, grub, refind and tools folder) in my both 'Partition 1' and 'Partition 2'. 

 

Regards...........


Edited by devdevadev, 29 June 2014 - 07:35 PM.


#12 devdevadev

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Posted 30 June 2014 - 04:28 AM

@cdob, misty, Steve................etc......

 

http://reboot.pro/to...es/#entry185257

 

In above post 'taviruni ' said that "UEFI boot alone do not load the boot.wim, it has to be the double option UEFI/CSM + disable Secureboot."

 

Can anybody tell me please why 'taviruni' will had to change BIOS/UEFI settings to enable UEFI/CSM (his bios has tree options UEFI, UEFI/CSM and CSM) module and disable Secure boot to be able to boot 'Win8.1SEx64 boot.wim'.

 

He also said that "NO OTHER way to boot the Win8.1SEx64 boot.wim in UEFI mode in my laptop, UEFI boot alone do not load the boot.wim, it has to be the double option UEFI/CSM + disable Secureboot."

 

Why 'taviruni ' is unable to boot  'Win8.1SEx64 boot.wim' in pure UEFI mode without changing BIOS Settings to 'enable UEFI/CSM + disable Secureboot' ?

 

Why he is unable to use 'UEFI mode' alone in order to boot 'boot.wim' in his PC ? Can anybody understand ?

 

Is 'taviruni ' missing something in his procedure ?

 

Thanks........


Edited by devdevadev, 30 June 2014 - 04:32 AM.


#13 alacran

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Posted 30 June 2014 - 12:07 PM

Very simple answer that Bios was developed to work that way, as other Bios can be developed in diferent ways. There is not one size fits all.

 

Regards



#14 devdevadev

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Posted 30 June 2014 - 12:19 PM

Very simple answer that Bios was developed to work that way, as other Bios can be developed in diferent ways.

 

Regards

 

Hi 'alacran'

 

If his 'UEFI mode' can not be used in anyway and is useless. why his PC contains tree mode ? It should had to double mode

(UEFI/CSM and CSM ) .

 

Can you please tell me that why his PC have tree mode while UEFI mode is just like a show piece ? 

 

I think if a Bios has a option then there should be some use of that in any particular way ?

 

Thanks



#15 Wonko the Sane

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Posted 30 June 2014 - 12:23 PM

@cdob, misty, Steve................etc......

 

http://reboot.pro/to...es/#entry185257

 

In above post 'taviruni ' said that "UEFI boot alone do not load the boot.wim, it has to be the double option UEFI/CSM + disable Secureboot."

NOT "in the above post", on this post (on another board):

http://www.911cd.net...ndpost&p=175348

 

Now, seriously, anyone would normally reply to taviruni and ask him directly what he meant, more details, etc, instead of cross posting (citing wrong links BTW) to ask everyone what they think of something they cannot know nothing about.

Are you trying to gain consensus?

Or what?

 

Everyone, in different ways, is trying to convey to you this simple message: it is impossible, at the current state of knowledge (and at the current state of different/contrasting/plainly wrong/whatever implementations of UEFI and CMS) to have anything really *universally* booting with all the features (some of which are either whimsical or plainly foolish) that you are asking for.

 

BIOS has been around since the dawn of time, incompatibilities have been removed or flattened out/worked around during the years.

UEFI/EFI is a (BTW stupid) so-called "standard" that consists of more 2,000 (two thousand pages) and every single developer/firm has managed to read these specifications in some (slightly) different ways, creating the current mess.

 

It is already a miracle IMHO that Steve6375 and wimb (through Clover and/or the Windows bootmgr/GRUB2 and with a number of trifling limitations/requirements) have managed to put together something that is working in most cases, rest assured that as soon as something "better" or "more flexible" or "more featured" will be found, it will be published, but it is not that by beating again this poor dead horse you will obtain anything (exception made for becoming a general annoyance by nagging everyone with your questions, which often simply make no sense).

 

:duff:

Wonko


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#16 devdevadev

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Posted 30 June 2014 - 01:05 PM

Hello Everyone..........

 

AFAIK, a BIOS with tree option has following three option for UEFI/BIOS booting -

 

1.- UEFI -  ????????????????????????????? ( Do not know about its requirement in order to use it ?)

 

2.- UEFI/CSM - It can boot both ways (UEFI and/or legacy mode) but requires disable Secure boot for both.

 

3.- CSM - It boot only in legacy mode and require disable Secure boot

 

Does anybody know about booting requirement of 1- UEFI ?

 

Does 1- UEFI option boot in UEFI mode and require Enable Secure boot ?

 

Does 1- UEFI option require GPT formatting of FAT32 USB drive in order to UEFI booting of WIM files via UEFI Boot Manager ?

 

 

Thanks..........


Edited by devdevadev, 30 June 2014 - 01:15 PM.


#17 cdob

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Posted 30 June 2014 - 07:08 PM

Will UEFI booting also be happen if I put same 'EFI files' in both 'Partition 1' and 'Partition 2' ?

Anything may happen.
UEFI may select one: first or second.
UEFI may fail altogether.

Or pressing the relating boot hotkey (F8 at a Asus C8MH70-I):
UEFI scans all four partition entries
and offers the two \efi\ partitions to select

As for time being: avoid this undefined state.
Or test at a lot of hardware yoursefl.
 

Does 1- UEFI option boot in UEFI mode and require Enable Secure boot ?

No, secure boot is another option. You may enable or disable secure boot at UEFI mode.
However read each motherboard manual, of course there are exceptions.
 

Does 1- UEFI option require GPT formatting of FAT32 USB drive in order to UEFI booting of WIM files via UEFI Boot Manager ?

No, GPT is not required. MBR FAT32 is possible.
 
 
In addition: 'Win8.1SEx64 boot.wim' building patches windows files.
Secure boot may fail, I don't know. Ask at relating developer forum.

#18 devdevadev

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Posted 01 July 2014 - 02:15 AM

Anything may happen.
UEFI may select one: first or second.
UEFI may fail altogether. (Why it might fail altogether ?)

Or pressing the relating boot hotkey (F8 at a Asus C8MH70-I):
UEFI scans all four partition entries
and offers the two \efi\ partitions to select

 

What it mean ? Does some UEFI firmware also look 'ptn3' and 'ptn4' for \EFI\ Partition ?

What If I put 'EFI files' into all four partitions ( ptn1,ptn2,ptn3 and ptn4 ) ? Will it give sure UEFI booting ?

 

AFAIK, 

 

We can install either 'Grub4dos' or 'Boot Manager' into 'MBR Boot Code'

If we install Grub4dos through RMPrepUSB then 'MBR Boot Code' contains 'Grub4dos' ?

If we select 'Standard' option from the 'MBR Boot Code' section of 'UFD_FORMAT', then it install 'Boot Manager' into 'MBR Boot Code' ?

But by default what value 'MBR Boot Code' contains when we do nothing ?  grldr/bootmgr/nothing ?

 

Currently RMPrepUSB does not allow me to install Boot Manager (bootmgr) into 'MBR Boot Code'. 

 

Does anybody know about a tool which can install Grub4dos/Boot Manager into 'MBR Boot Code' without formatting USB Drive ?

 

If Boot Manger (bootmgr) be installed into 'MBR Boot Code' and all four partitions (ptn1,ptn2,ptn3 and ptn4) contains 'EFI Files', then In BIOS/MBR/CSM/Legacy mode USB Drive boot into 'BIOS Boot Manger' via 'MBR Boode Code'. While In UEFI/UEFI+CSM mode it look for \EFI partition and boot from any one of \EFI partition ?

 

What is 'MBR Boot Code' and what is the location of 'MBR Boot Code' ? Does it saves within a Sector of USB Drive ?

How 'MBR Boot Code' works in MBR/BIOS/CSM/legacy mode ?

 

Regards.......


Edited by devdevadev, 01 July 2014 - 02:52 AM.


#19 Wonko the Sane

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Posted 01 July 2014 - 08:04 AM

The idea of studying the very basics on how a PC boots before asking elementary (and often random/crazy) questions did not even cross your mind? :dubbio:

 

:duff:

Wonko


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#20 devdevadev

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Posted 01 July 2014 - 09:13 AM


The idea of studying the very basics on how a PC boots before asking elementary (and often random/crazy) questions did not even cross your mind? :dubbio:

 

:duff:

Wonko

 

This is exactly what new horse sometimes likes to do................... :worship: 



#21 Wonko the Sane

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Posted 01 July 2014 - 09:50 AM

This is exactly what new horse sometimes likes to do................... :worship: 

Good. :)

Now, the typical "question time" is when a kid is 3 to 5 years old and nags parents and older brothers and sisters with continuous random questions.

Then the kid goes to school, learns to read, and starts reading (he/she is then too busy reading to ask anymore these random questions).

 

Little by little he/she manages to learn and understand a lot of things and soon he/she will be making a few valid questions, to which everyone will be happy to reply.

 

Please consider how, in order to learn to read, he/she had to first LISTEN to the advise and teachings given by older people.

 

This is not happening in this case, you simply ignore what is told you (over and over, and in all the possible ways to convey a same message) taking out of each reply you get (or from some "random" post/thread you find) what you think (without understanding or wanting to understand the context) bits and pieces, reassembling or bending them into something that you believe might be useful for your impossible goal (and usually is not only not useful, but so absurd to make anyone familiar with the topic cry in desperation :ph34r:)

 

Doing this, without even an attempt to understand the very basics, will unfortunately lead you nowhere (besides NOT leading you to your actual goal, which is - as everyone has tried to tell you - impossible with the current level of knowledge/with the available tools/on current hardware/firmware).

 

Usual Carpenter's comparison:

Q. I want to build a new house, with a wooden frame, that is 35 storeys tall. Where do I begin?

A. You need to first study some basics of constructions/structures, then you will need to learn how to join together planks and beams of timber. Noone has ever managed to build a 35 storeys wooden structure, however, it is impossible at the current level of engineering and - besides that - the way to build a wooden house is different depending on your region, on which kind of timber you have available which kind of tools you have available, etc.

Q.I don't want to study structures I want to build a house and I want it 35 storeys tall. I don't want to become an engineer or a carpenter, I want to build a wooden house and I want it 35 storeys tall.

A.Yes, we got that, what you missed is that it is impossible, simply because there are not big enough wooden beams, nails and hammers to build that.

Q.What is a hammer? What is a nail? What is a beam? Why does a nail have a head and a pointed end? Which side do you plant nails in wood? How do you use a hammer?

A. You need to study some very basics on wooden structures and how they are built, learn to use at a basic level the tools used by carpenters and do some practice with them, building smaller/simpler structures instead of asking these questions.

Q. I have read that screws are better than nails. How come I cannot use a screwdriver to drive a nail? What if I use a screwdriver to make a hole in a wooden beam? Can I use a wooden peg instead of a nail? If I use a screw instead of a wooden peg, can I use glue to fix it? Why glue is not black? I want to use black glue. Why glue is not dark blue? I think that I can use black glue together with dark blue glue. Can I mix black glue with dark blue glue? What colour will the mix come out? Can I drive a nail into a wooden peg? Isn't it better if I drive both a nail and a screw in a hole I made for a wooden peg? And then add some glue to it?

A. :frusty:

 

:duff:

Wonko


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#22 steve6375

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Posted 01 July 2014 - 10:06 AM

http://www.easy2boot...things-to-know/



#23 devdevadev

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Posted 01 July 2014 - 11:25 AM

:worship:Wonko :worship: 

 

First big thanks and honor to you for your interesting and lesson full stories........

 

Actually you are right but a new horse alone can not easily reach to a destination without a good rider like you. There may be lots of chances to be distracted from the way. Actually I know some basics but there are still lots of confusions because of different education steam. And AFAIK, some teachers may also have wrong concepts regarding some simple basics. And whenever a student ask questions, then they clear their concepts once again and feel that their concept was wrong. And I am just a newbie in computing , It's why I am trying to solve my confusion by asking to the experts. Actually your standard of thinking is very big and tremendous and I never could reach to that level. It seems that It's why you quickly declare my questions as crazy and stupid. I think It may be generation gap. AFAIK, 'Steve' sir is also a very experienced and extra-ordinary person, But he never treat my crazy,stupid and foolish question like you. If you do not like my stupid questions, then why you respond them. I think you should utilize your precious time in Intelligent questions as extra-ordinary person normally do. 

          And for you kind information I want to tell you that my goal is in final stage due to lots of help and support by Steve, cdob, Misty, ktp, alacran, JFX, wimb and definitely Wonko the Sane................  :worship: 

 

Lots of thanks, honor and Regards for giving me your precious time..................... :)

 

Thanks to Everyone..............


Edited by devdevadev, 01 July 2014 - 11:26 AM.


#24 Wonko the Sane

Wonko the Sane

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Posted 01 July 2014 - 11:42 AM

So, around 9 hours ago you asked these questions (I numbered them to make them easy to reference):

  1. What it mean ?
  2. Does some UEFI firmware also look 'ptn3' and 'ptn4' for \EFI\ Partition ?
  3. What If I put 'EFI files' into all four partitions ( ptn1,ptn2,ptn3 and ptn4 ) ?
  4. Will it give sure UEFI booting ?
  5. We can install either 'Grub4dos' or 'Boot Manager' into 'MBR Boot Code'
  6. If we install Grub4dos through RMPrepUSB then 'MBR Boot Code' contains 'Grub4dos' ?
  7. If we select 'Standard' option from the 'MBR Boot Code' section of 'UFD_FORMAT', then it install 'Boot Manager' into 'MBR Boot Code' ?
  8. But by default what value 'MBR Boot Code' contains when we do nothing ?  
  9. grldr/bootmgr/nothing ?
  10. Currently RMPrepUSB does not allow me to install Boot Manager (bootmgr) into 'MBR Boot Code'. Does anybody know about a tool which can install Grub4dos/Boot Manager into 'MBR Boot Code' without formatting USB Drive ?
  11. If Boot Manger (bootmgr) be installed into 'MBR Boot Code' and all four partitions (ptn1,ptn2,ptn3 and ptn4) contains 'EFI Files', then In BIOS/MBR/CSM/Legacy mode USB Drive boot into 'BIOS Boot Manger' via 'MBR Boode Code'. While In UEFI/UEFI+CSM mode it look for \EFI partition and boot from any one of \EFI partition ?
  12. What is 'MBR Boot Code' and what is the location of 'MBR Boot Code' ?
  13. Does it saves within a Sector of USB Drive ?
  14. How 'MBR Boot Code' works in MBR/BIOS/CSM/legacy mode ?

They are 14 (fourteen)  questions.

 

Do you have in the meantime gathered corresponding 14 answers? :unsure:

 

If yes, can you post these corresponding answers?<- this might greatly help other users of the board having the same questions :).

 

If no, which answers are you missing? :dubbio:

 

If you are missing any answer(s) to the above listed questions, but you managed anyway to get to the final stage, can it be assumed that those missing answers (and thus the corresponding questions) were unneeded, superfluous or maybe only badly worded?

 

:duff:

Wonko 



#25 devdevadev

devdevadev

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Posted 01 July 2014 - 12:31 PM

@Wonko :worship:

 

  1. What it mean ? - I had asked this question to cdob for his following line - UEFI may fail altogether. (Why it might fail altogether ?)
  2. Does some UEFI firmware also look 'ptn3' and 'ptn4' for \EFI\ Partition ? - I asked this because currently I have put 'EFI File' into only 'ptn1' and 'ptn2' and 'cdob' said the UEFI may select one: first or second and UEFI may fail altogether.
  3. What If I put 'EFI files' into all four partitions ( ptn1,ptn2,ptn3 and ptn4 ) ? - I want to just confirm whether this process provide sure UEFI booting or not ?
  4. Will it give sure UEFI booting ? - I asked this because of 'cdob' this line "EFI files are possible at Partition 2 at a lot of systems.
  5. We can install either 'Grub4dos' or 'Boot Manager' into 'MBR Boot Code' - I know but want to confirm
  6. If we install Grub4dos through RMPrepUSB then 'MBR Boot Code' contains 'Grub4dos' ? - I know but want to confirm
  7. If we select 'Standard' option from the 'MBR Boot Code' section of 'UFD_FORMAT', then it install 'Boot Manager' into 'MBR Boot Code' ? - Want to confirm
  8. But by default what value ( grldr/bootmgr/nothing ) 'MBR Boot Code' contains when we do nothing ?  - Does not confirm about it
  9. Currently RMPrepUSB does not allow me to install Boot Manager (bootmgr) into 'MBR Boot Code'. Does anybody know about a tool which can install Grub4dos/Boot Manager into 'MBR Boot Code' without formatting USB Drive ? - It is a question 
  10. If Boot Manger (bootmgr) be installed into 'MBR Boot Code' and all four partitions (ptn1,ptn2,ptn3 and ptn4) contains 'EFI Files', then In BIOS/MBR/CSM/Legacy mode USB Drive boot into 'BIOS Boot Manger' via 'MBR Boode Code'. While In UEFI/UEFI+CSM mode it look for \EFI partition and boot from any one of \EFI partition ? - I think this but want to confirm
  11. What is 'MBR Boot Code' and what is the location of 'MBR Boot Code' ? - I know its use but do not know more about it
  12. Does it saves within a Sector of USB Drive ? - not related to my goal but want to know just for info
  13. How 'MBR Boot Code' works in MBR/BIOS/CSM/legacy mode - AFAIK , there is no need to make partition as active if grldr is installed in  MBR Boot Code but do not exactly confirm about what happen in case Boot Manager/BOOTMGR is installed into 'MBR Boot Code' 

I think you never read my question carefully. Actually in most of the above question I want to just confirms things. And most of the questions are related to Steve and cdob responses and Steve already send me a link in order to solve my confusions BTW- If you do not want to share your previous knowledge with me then why you waste  you time in stupid/foolish and crazy questions.

 

 Regards....... :worship:


Edited by devdevadev, 01 July 2014 - 12:37 PM.






Also tagged with one or more of these keywords: uefi booting, efi files, uefi mode, uefi bcd, bootmgr.efi, efi folder, boot manager, wim files, bootx64.efi, fat32 active removable usb

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