Is this weird to you, a EFI: MS-DOS partition at root on internal SSD? This is on my daughter MacBook Pro 13" Early 2015. I know this drive was replaced by computer shop many years ago. Thanks, Charles
[Edited by Moderator]
That EFI MS-DOS aka File Allocation Table-32 (FAT32) partition IS part of MacOS. It is a very very small and simple partition used as a boot-assist partition. It is used by Extensible Firmware Interface (EFI) capable computers to get them booted up.
On some Macs, it can contain several very early Boot-Loader components. It is generally never seen or manipulated once MacOS has started.
When set up with different boot-loader files, it can allow your Mac to boot directly into different operating systems, or provide a Boot-Picker screen.
Ignore it. It takes up only 209.7 MegaBytes, next to nothing. DO NOT attempt to remove it.
https://en.wikipedia.org/wiki/EFI_system_partition
That EFI MS-DOS aka File Allocation Table-32 (FAT32) partition IS part of MacOS. It is a very very small and simple partition used as a boot-assist partition. It is used by Extensible Firmware Interface (EFI) capable computers to get them booted up.
On some Macs, it can contain several very early Boot-Loader components. It is generally never seen or manipulated once MacOS has started.
When set up with different boot-loader files, it can allow your Mac to boot directly into different operating systems, or provide a Boot-Picker screen.
Ignore it. It takes up only 209.7 MegaBytes, next to nothing. DO NOT attempt to remove it.
https://en.wikipedia.org/wiki/EFI_system_partition
The Extensible Firmware Interface (EFI),console used by Mac on Intel is arguably misreporting that GUID Partitioning Table (GPT) storage partition as an MS-DOS partition. It’s not. It’s a FAT-32 partition, and not centrally related to MS-DOS.
That FAT-32 reference is also arguably misreported, as it’s actually FAT-28 and not FAT-32, but that nomenclature choice is on Microsoft and not Intel EFI.
Happy to discuss details of GPT, MBR, FAT, and related too, having worked on operating system code dependent on EFI for booting, and for system maintenance tasks. Including some ugliness intended to allow platform coexistence.
But as for this question more generally, and as others have stated, it’s normal and expected. And yes, EFI is weird.
Apple: Technical Note TN2166: Secrets of the GPT (the volume partitioning scheme used here)
Intel: https://www.intel.com/content/dam/doc/product-specification/efi-v1-10-specification.pdf (the console)
That's normal. The configuration and partitioning of the boot drive in macOS is very complicated.
Thanks, just never seen it before. I've only seen AppleAPFSMedia. The SSD I got was probably used before so could have been on a Window machine. Selling it anyway as battery dead and 5 keys stopped working, Esc, Tile (under Esc key), Zero 0, Backspace and Ctrl. Charles
charlesteton wrote:
Selling it anyway as battery dead and 5 keys stopped working, Esc, Tile (under Esc key), Zero 0, Backspace and Ctrl. Charles
Please do not do that. If the machine is not functional, just take it to an electronics recycling facility.
There are so many posts here on the forums about people buying used Macs that don't work.
It's list in UK on eBay as 'not working for parts' and all faults are listed etc at very low cost. The charger, screen and SSD are all worth the £60 price. I've been on eBay for 25 years with 100% feedback. If people buy non working machines that is up to them., probably to fix one they have and need parts at low cost. I would think you will find nearly all the question regarding non working Macs are because they stop working. I used to be a FCP Tech Supervisor on features and Mac & UNIX support. I was going to use it myself for a media server but don't have the energy to trouble shoot the keyboard issue as those butterfly keyboards are supposed to be a pain. Thanks for your advice though. C
PS: Never used Window on it and drive should have been wiped completely as just erased and did a clean installed on to it. C
No problem, like I said I had not see it before and because the SSD was replaced and not fitted by me, was suspicious. Thanks, C
EFI MS-DOS partition on MacBook Pro Early 2015 SSD?
