newfs_msdos: EFI: unknown standard format

[beeser]

Greetings.

I am attempting to install Mavericks on an Asus X200CA netbook. It has the dreaded/troublesome UEFI so I was following the tonymac "How to Install OS X Mavericks using Clover".

http://www.tonymacx86.com/mavericks...-how-install-os-x-mavericks-using-clover.html

It was going well, until I tried to do "STEP 4: Post-Installation". When I typed into Terminal: "sudo newfs_msdos -v EFI -F 32 /dev/rdisk0s1", then my password, I get back "newfs_msdos: EFI: unknown standard format".

Any ideas?

The instructions recommends formatting the EFI partition into FAT, but, of course, the EFI partition doesn't show up in Disk Utility, so there's no way to do it there. How is this done using Terminal?

This netbook has the American Megatrends, Inc. (AMI) Aptio UEFI bios.

 

[s0ccurpr0]

So I don't know if you still need help but I had this issue and found the solution. The "f" in your syntax is lower case and it needs to be upper as this is case sensitive in terminal. Hope that helps!

 

[RehabMan]

Greetings.

I am attempting to install Mavericks on an Asus X200CA netbook. It has the dreaded/troublesome UEFI so I was following the tonymac "How to Install OS X Mavericks using Clover".

http://www.tonymacx86.com/mavericks...-how-install-os-x-mavericks-using-clover.html

It was going well, until I tried to do "STEP 4: Post-Installation". When I typed into Terminal: "sudo newfs_msdos -v EFI -F 32 /dev/rdisk0s1", then my password, I get back "newfs_msdos: EFI: unknown standard format".

Any ideas?

The instructions recommends formatting the EFI partition into FAT, but, of course, the EFI partition doesn't show up in Disk Utility, so there's no way to do it there. How is this done using Terminal?

This netbook has the American Megatrends, Inc. (AMI) Aptio UEFI bios.

Follow Clover guide for laptops.

http://www.tonymacx86.com/yosemite-...de-booting-os-x-installer-laptops-clover.html

--

Please provide complete details in your profile/signature
(Profile/Settings link in upper right corner of this site)

System: manufacturer/model + bootloader(Clover/Chameleon/Chimera)
CPU: detailed CPU model + motherboard chipset
Graphics: all graphics devices + laptop internal screen resolution

For example, typical Ivy laptop:
Mobo: HP ProBook 4540s (Clover)
CPU: i5-3320m/HM76
Graphics: HD4000, 1366x768

Use CPU-Z on Windows to find CPU (Core iX-xxx) and motherboard chipset (HMxx), and graphics capabilities. For a laptop, these details are important and affect critical installation procedures.