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Tutorial: Mount boot stick partitions in Windows (edit grub.cfg, add extra.lzma)


jensmander
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If you want to modify your grub.cfg of your written boot stick or want to access the partitions (adding extra.lzma from @IG-88) you can use a free portable tool.

 

Notes:

 

- the grub.cfg is located in the folder "grub" on the first partition (15MB)

- the extra.lzma is on the second partition (30MB)

 

1.) Download MiniTool Partition Wizard Free Edition (portable):

 

https://www.partitionwizard.com/download/v12-portable/pw12-free-64bit.zip

 

2.) Unzip it and launch the "partitionwizard.exe" with administrative rights.

 

3.) Plug in your boot stick. Partition Wizard will automatically recognize the new drive. In this example it is drive no. 4. Now select the 1st partition of your stick (15MB) -> rightclick and select "Change Letter" in the context menu.

minitool1.jpg.7718fd1586b17684b14c03df36a15394.jpg

minitool2.jpg.7a13e8d513f5ddd42dc04ec172c583a8.jpg

 

4.) Select a desired drive letter and click on "OK".

 

minitool3.jpg.4e1b7630870d1967c22cefaa541ccf3b.jpg

 

5.) In the lower left pane of the tool click on "Apply" and confirm the pending changes:

 

minitool4.jpg.1270ba6d734f810f9e25e20933316210.jpg

 

minitool5.jpg.5b94c11a954b935cc8251ed76eac7252.jpg

 

If everything went OK you should see a success message:

 

minitool6.jpg.cd3404907eafa67899b2697057477565.jpg

 

Now you have full access to the 1st partition with the Explorer or your favourite file manager.

 

If you're done with any modifications it's advisable to unmount the drive letter. The steps are nearly the same.

 

6.) Right click the 1st partition again -> "Change Letter" -> select "New Drive Letter: none" -> "OK" -> click on "Apply" to the lower left and confirm the changes.

 

minitool7.jpg.9535eb2032c8ca4767b87958e66cfc6c.jpg

 

 

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  • 3 weeks later...

I do as explained, partitions are mounted,  first partition (15MB)  can't be accessed, Windows tell me "You don't currently have permission to access this folder"

For the second partition, everything is ok , can be mounted and accessible from explorer.

 

I need this to copy grub.cfg.

Any idea ?

 

 

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  • 9 months later...

beside the mounting with partitionwizard there is a better way to use the tool to get easy access to the loaders 1st and 2nd partition

start the tool, right click on the loaders main entry where is states GPT, convert it to MBR, apply to execute the oüeration, do the same again but revers it, convert it to GPT and click apply

now windows 10 can access both partitions as its supposed to be and you don't need any additional tools

 

and with that its also possible to get the MBR version of the loader (often needed for HP desktop's), no need for a special download of the loader, just do it yourself

 

@jensmander maybe you can add this in the 1st post as option?

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  • 2 months later...
On 5/26/2020 at 8:59 AM, jensmander said:

If you want to modify your grub.cfg of your written boot stick or want to access the partitions (adding extra.lzma from @IG-88) you can use a free portable tool.

 

Notes:

 

- the grub.cfg is located in the folder "grub" on the first partition (15MB)

- the extra.lzma is on the second partition (30MB)

 

1.) Download MiniTool Partition Wizard Free Edition (portable):

 

https://www.partitionwizard.com/download/v12-portable/pw12-free-64bit.zip

 

2.) Unzip it and launch the "partitionwizard.exe" with administrative rights.

 

3.) Plug in your boot stick. Partition Wizard will automatically recognize the new drive. In this example it is drive no. 4. Now select the 1st partition of your stick (15MB) -> rightclick and select "Change Letter" in the context menu.

minitool1.jpg.7718fd1586b17684b14c03df36a15394.jpg

minitool2.jpg.7a13e8d513f5ddd42dc04ec172c583a8.jpg

 

4.) Select a desired drive letter and click on "OK".

 

minitool3.jpg.4e1b7630870d1967c22cefaa541ccf3b.jpg

 

5.) In the lower left pane of the tool click on "Apply" and confirm the pending changes:

 

minitool4.jpg.1270ba6d734f810f9e25e20933316210.jpg

 

minitool5.jpg.5b94c11a954b935cc8251ed76eac7252.jpg

 

If everything went OK you should see a success message:

 

minitool6.jpg.cd3404907eafa67899b2697057477565.jpg

 

Now you have full access to the 1st partition with the Explorer or your favourite file manager.

 

If you're done with any modifications it's advisable to unmount the drive letter. The steps are nearly the same.

 

6.) Right click the 1st partition again -> "Change Letter" -> select "New Drive Letter: none" -> "OK" -> click on "Apply" to the lower left and confirm the changes.

 

minitool7.jpg.9535eb2032c8ca4767b87958e66cfc6c.jpg

 

 

Hi :)

 

I get the following error:

1.png.01a153acc09d691a367780c014b44aac.png

 

2.png.569d58efd741bc764a055cee8ce349f5.png

 

When I click on "security tab" (opens properties but there is no Security tab)

3.thumb.png.645599ec554bae9f98fac25866cfc77a.png

 

I'm trying to read the grub.cfg file to see if I made any mistake.

 

Thank you very much in advance for your help.

Best,

-a-

Edited by asheenlevrai
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On 4/16/2021 at 4:34 PM, IG-88 said:

beside the mounting with partitionwizard there is a better way to use the tool to get easy access to the loaders 1st and 2nd partition

start the tool, right click on the loaders main entry where is states GPT, convert it to MBR, apply to execute the oüeration, do the same again but revers it, convert it to GPT and click apply

now windows 10 can access both partitions as its supposed to be and you don't need any additional tools

 

and with that its also possible to get the MBR version of the loader (often needed for HP desktop's), no need for a special download of the loader, just do it yourself

 

@jensmander maybe you can add this in the 1st post as option?

I tried that but I get the same error as in the previous post.

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  • 1 month later...
В 18.06.2020 в 21:37, drapan сказал:

I do as explained, partitions are mounted,  first partition (15MB)  can't be accessed, Windows tell me "You don't currently have permission to access this folder"

For the second partition, everything is ok , can be mounted and accessible from explorer.

 

I need this to copy grub.cfg.

Any idea ?

 

 

the same problem - run as administartor of course

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  • 3 months later...
On 4/16/2021 at 10:34 PM, IG-88 said:

beside the mounting with partitionwizard there is a better way to use the tool to get easy access to the loaders 1st and 2nd partition

start the tool, right click on the loaders main entry where is states GPT, convert it to MBR, apply to execute the oüeration, do the same again but revers it, convert it to GPT and click apply

now windows 10 can access both partitions as its supposed to be and you don't need any additional tools

 

and with that its also possible to get the MBR version of the loader (often needed for HP desktop's), no need for a special download of the loader, just do it yourself

 

@jensmander maybe you can add this in the 1st post as option?

how to get the MBR version of the loader,HP GEN8 ,please help me thank you

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On 11/8/2021 at 3:07 PM, neonline said:

how to get the MBR version of the loader,HP GEN8 ,please help me thank you

beside from making them from the normal one with the tool i mentioned above there are also downloadable versions in the loader section

https://xpenology.com/forum/forum/98-member-tweaked-loaders/

but afair the microservers dont need that, its just some (mostly HP) desktops

Edited by IG-88
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