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Has your usage of the M1 Mac version caused you difficulties?


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deeddawg

macrumors G5
Jun 14, 2010
12,466
6,564
US
It's not entirely impossible that Apple engineers have told the OP that an M1 Mac and an intel Mac can boot the same system, and that it is the official response from Apple.

That may be true or may not be true, still doesn't change the guidance I gave above:

When one buys a new computer, be sure to thoroughly test all important functional requirements. If it fails to meet one or more of those requirements, check with Support to try to resolve the issue, and return it if it cannot be resolved within the return period.
 

jeanlain

macrumors 68020
Mar 14, 2009
2,454
948
Sure. I was only speaking from an academic standpoint. I'd like to know whether the same OS can boot different architectures. I don't really car about the OP, to be honest.
 

dmccloud

macrumors 68040
Sep 7, 2009
3,122
1,884
Anchorage, AK
The Big Sur installer contains both Intel and M1 versions of the OS. During installation, the appropriate version of the OS is installed based on the system architecture. This is something Apple confirmed during WWDC as well as numerous interviews and events held since last June. While Rosetta 2 can translate x86 applications to ARM code, it can not do the same to the OS components, largely because of the security features and restructions present in Big Sur. Some of that "legacy" x86 code is likely there because it's needed for Rosetta to work. I've also seen several reports that for certain operations, the M1 can drop one or more of its performance cores into an x86 compatibility mode as needed. That is most likely why those x86 components are still present in the OS on M1 systems.
 

Krevnik

macrumors 601
Sep 8, 2003
4,101
1,312
Sure. I was only speaking from an academic standpoint. I'd like to know whether the same OS can boot different architectures. I don't really car about the OP, to be honest.

The pre-boot environment changed a lot with M1. Apple’s SoCs don’t use EFI, unlike Intel Macs, and EFI has specific partitioning requirements, such has a mandatory partition to contain the EFI boot loader for the drive. M1 systems even when booting from an external drive, boot first from an internal partition, which then loads the external drive’s OS. No EFI partition required for M1. More details on the changes are available here: https://eclecticlight.co/2021/01/14/m1-macs-radically-change-boot-and-recovery/

Depending on how the external drive is setup, if it doesn’t contain the EFI partition, it cannot be booted on Intel, period. Beyond that, it depends a lot on what’s available in the OS partition, and if things are pointed correctly (I.e. the EFI partition boot loader can find iBoot, iBoot can find the kernel, etc). But also with Big Sur, the system won’t boot if the cryptographic seal on the OS partition is broken, which adds a new wrinkle to things.

It’s very likely that the core OS partition is simply installed as part of the “base system image”, which is universal. These are libraries, kernel extensions, and apps. My M1 Mini has the Intel kernel, boot.efi, and even kernel extensions the M1 can’t even use like AMD drivers. So I’m not convinced by the argument that they are platform specific.

But it’s also not impossible for there to be bugs or skipped steps when blessing a drive for booting on an M1 machine that just happens to break the Intel boot chain. If there are issues, it’s these sort of problems that I’d expect to be at the heart of the matter. Not that the OS itself is fundamentally unbootable on Intel.

Edit: Eclectic Light even discusses a bit of the issues booting external drives in general here: https://eclecticlight.co/2020/12/22/booting-an-m1-mac-from-an-external-disk-it-is-possible/

It’s clear that the new blessing mechanism is buggy as hell, so it’s even more evidence to me that inability to boot on Intel is because of issues there, to me.
 
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OldCorpse

macrumors 68000
Dec 7, 2005
1,758
347
compost heap
In the days of iTunes, I realized if I hit shuffle, I could listen for 47 days without repeating a song. Except iTunes did repeat, but that is another story ...

LOL! Oh, the comedy just doesn’t quit! So, we have someone here who thinks relying on streaming services for your media needs is the solution... facepalm! This after already presumably being aware of how material that has been granted access to before, can suddenly be revoked, music or film rights disputes, windows of availability and a thousand other scenarios. No thanks. I like to own what I have, access forever, with nobody having a sayso. That’s not even to mention, tons of albums that I have which are rare, or bootlegs or concerts and generally stuff that’s not available for streaming, period. How do I stream that, stream fan? LOL. And of course, the ever present problem of having to have uninterruptable internet access. Wow, this is feeble.

I had become a music archiver, not a listener. If you are a videographer and that is your active library, cloud is probably not for you. If you are archiving and storing at your house, that is a dangerous endeavor, as drives fail, theft, natural disaster etc.

You archive, sorry, that’s not me. And yes, being active in media creation means cloud is not for me - so what’s the point of your whole rant, when that’s all I’m pointing out - that NO it is not the case that we should all just move online. It’s not. It never will be for many of us. Case closed right there. And of course I have backups and safe storage solutions.

I and many millions have access to Internet, not an issue for me.

It never goes down? It never slows down suddenly while streaming? No glitches ever? Quick, report a miracle to the nearest church, because what you found is not of this earth. When editing, there are critical situations where you’d be a fool to rely exclusively on online access - but feel free to tell everyone how to structure their workflow, even if you don’t have the faintest idea of their requirements.

There is no way you have a computer that stores 30TB and has battery access to consume that, so if power goes out, you are same boat as if internet goes out.


Huh? I have external drives, I think I’ve said that, only a hundred times, and if power goes out, I have robust UPS solutions - which is a must for anyone in my line of work. Boy, making assumptions here about stuff while apparently knowing nothing about.


My most precious secrets are already out there.
IRS, TurboTax, Banking, Health Records, Credit Cards, they are all already in the Cloud because I can access them 24x7 from the internet. I didn't put them there, the Companies did. You don't opt in or out, your data is out there. Way more people have your data already.

This is another myth that only you can protect your data at home. Your data is out there my friend.


LOL! I’ll tell my clients all that next time they have me sign papwork to protect their intellectual rights and not have footage or media released without authorization. They expect me to protect their stuff in confidentiality, and I have the same expectation for my own material, but sure, I’ll keep in mind your nostrum that it’s all useless and the legal stuff is inconsequential. Oh, btw. who said this was just about “secrets”, and not about material integrity and access? Wow. Know nothing, but make strong statements.

Disagree. Travel to Hawaii, need access to something. Where is it, oh, in the Safe at home. Security another myth, you home is less secure than a data center.

Gee, nobody ever has access to their NAS once they leave home, uses a VPN or understands remote work. And it is you who claims that I’m technologically behind the times. This is embarrassing.

Also, consumer grade hardware is prone to fail more than enterprise grade.

Good thing then, that given that media is important both for my work and personal use, I use enterprise grade solutions, but of course, this is a lot of nonsense because the grade of hardware is not how you protect your data. You protect your data through redundancy and backups - just a tip for you, since you appear not very technologically advanced.


Computers are used to create and consume. I'm a programer, I create more than I consume. I have need to have access to what I'm creating prior to releasing to a server where others can consume.

Sounds like you use computers to consume media, different use case, but your logic in saving at home around security, peace of mind, etc, is not congruent with the advances in technology that have occurred over the last decade.

Your practices are not modern, in that you can not access your 30TB from anywhere but within 6 feet of a spinning disk.

I don't find that comical at all. I only wonder why you are not taking advantage of advancements made in this space.


So many assumptions, so clearly wrong, so lacking in imagination as to the use scenarios of others. Yawn. Boy, that’s rather a lot of straw you used to construct that man. And that paragraph says everything about the strength of the case of how ”everyone should move online” - ‘nough said.
 

Doomtomb

macrumors 6502a
Jul 14, 2011
661
1,116
Austin, TX
My M1 Mac mini issues:
  • Bluetooth I don't use a bluetooth keyboard or mouse, but use AirPods or bluetooth headphones. Audio dropouts are consistent. Doesn't disconnect but sound ceases then comes back while playback is uninterrupted. It will be about 2-5 seconds long and can occur as often as every minute. That's pretty serious.
  • HDMI two external monitors, one USB-C to HDMI, the other HDMI to HDMI. Both 4K same make and model. One with HDMI will periodically go black for 2 seconds about once an hour. I believe this is HDCP handshake protocol (reinitiation). Obviously this should not be happening or perceptible by user.
 

srbNYC

macrumors 68000
Jul 7, 2020
1,866
1,726
New York, NY
The most amazing part of this whole thread is the title & poll—Apple did not properly test or warn new buyers of severe M1 Issues—which have nothing to do with the very particular issue the OP was having.

What do we think she or he is doing right now?
 
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jeanlain

macrumors 68020
Mar 14, 2009
2,454
948
I'm personally curious to know what the Apple tier-2 engineers actually told her.
Apparently, Apple misguided her and said may false things about the M1.
Maybe one day we'll know that there things were. I'm not optimistic though.
 

vorkosigan1

macrumors member
Jan 23, 2017
69
68
I already own an Intel iMac. I purchased a Mac Mini M1 for two specific reasons one of which was to provide my 13-year-old with a new computer. The other issue was a backup system that I could easily switch to should my main iMac need repair.

I was booting from a high-speed external SSD instead of the internal Fusion Drive. I wanted to be able to immediately boot the M1 Mini from my external drive in case of failure of my iMac or having it not available for repair.

This does not work. I am now finding that a bootable external drive created on either the M1 (if you are successful) or the iMac are not bootable on the other.

I don't consider this to be a desirable feature. It has negated my original plan for the M1 Mini.

I got no warning from Apple, and I got plenty of misinformation from Apple tier 2 support people who told me many things about the M1 that have turned out to be entirely false.

I am beyond the 2-week return window.

I think Apple is derelict in their testing of the M1 and in their information giving for the new chip.
Maybe Apple could have given out more information. It also sounds like you had some assumptions, didn't check them out, and now you're blaming Apple.
 
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Jorbanead

macrumors 65816
Aug 31, 2018
1,209
1,438
1) Made an assumption about a machine where that feature was never advertised

2) Didn’t research if said feature was available even though the M1 is a completely new architecture that for the mass market is a complete major change

3) Didn’t test the machine within the return window to see if said feature actually worked

4) Could have easily bought an Intel Mac mini instead which would work in the way you described (the issue is ARM processors here)

5) Could simply use the external drive for program files, some apps, and documents, instead of needing to boot the entire OS externally

6) Blame apple for your misunderstandings and assumptions

7) Call yourself the “queen of free” because you figured out companies would rather give away free stuff than deal with consistently aggressive customers
 

ivnj

macrumors 65816
Dec 8, 2006
1,495
101
I also realized after got my m1 my externals dont boot. But then I remembered its a whole new architecture. Makes sense. Rosetta 2 is needed for translating intel apps to m1. So why would the os be any different? M1 os is different than intel. Like 10.5 leopard on my dads 2005 G5 IMAC PPC is not bootable on our 2006 MACBOOK PRO INTEL and visa versa. This is no different.

Or getting NTFS support on mac. Its 2 totally different systems.
 

trifid

macrumors 68020
May 10, 2011
2,077
4,949
Not sure if anyone suggested this but, couldn't she make a second partition in her SSD to install the M1 macOS system? So the SSD could have a partition with the intel macOS and another with the M1 macOS. And you could have both partitions linked to the same user folder, so that the data would remain the same regardless of which partition you boot from.
 

ivnj

macrumors 65816
Dec 8, 2006
1,495
101
Not sure if anyone suggested this but, couldn't she make a second partition in her SSD to install the M1 macOS system? So the SSD could have a partition with the intel macOS and another with the M1 macOS. And you could have both partitions linked to the same user folder, so that the data would remain the same regardless of which partition you boot from.
No because you cannot boot m1 on intel or visa versa. You cant even install it. Why do that.
 
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OldCorpse

macrumors 68000
Dec 7, 2005
1,758
347
compost heap
I said folks need to move away from external drives.
Not a rant. But that ruffled your feathers for some reason.

Keep your super decoder methods. No skin off my back.


Oh, OK, so you had no point and have no argument after kicking up a fuss in response to my objection to a poster who proclaims that they’ll DIE ON THE HILL of the necessity of folks moving online.

It struck me as a singularly ill advised position with that much conviction behind it. I gave my reasons. You objected - badly and with poor arguments. I patiently demolished those. Not having a sensible counter-argument, now you wash your hands off it with “what me?”. If you’re gonna pop off, as you did, with a lot of unprovoked snark, you better have good arguments. Unsurprisingly, you had none, given that it’s a pretty stupid position that absolutely we should all move online because it’s so ”obviously” right. Except, as I plainly demonstrated, it’s anything but. Next time think before you post.

I think we’re done here. Best of luck!
 

trifid

macrumors 68020
May 10, 2011
2,077
4,949
No because you cannot boot m1 on intel or visa versa. You cant even install it. Why do that.
What I mean is with disk utility you make 2 partitions, then, connect external SSD to M1 mac and install macOS on one partition, after that connect SSD to intel mac and instal macOS on second partition. That way the external SSD has both partitions and lets you boot on both M1 and Intel. User folder can be shared among both with an additional config.
 
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Jimgpayne

macrumors member
Feb 19, 2012
31
18
I already own an Intel iMac. I purchased a Mac Mini M1 for two specific reasons one of which was to provide my 13-year-old with a new computer. The other issue was a backup system that I could easily switch to should my main iMac need repair.

I was booting from a high-speed external SSD instead of the internal Fusion Drive. I wanted to be able to immediately boot the M1 Mini from my external drive in case of failure of my iMac or having it not available for repair.

This does not work. I am now finding that a bootable external drive created on either the M1 (if you are successful) or the iMac are not bootable on the other.

I don't consider this to be a desirable feature. It has negated my original plan for the M1 Mini.

I got no warning from Apple, and I got plenty of misinformation from Apple tier 2 support people who told me many things about the M1 that have turned out to be entirely false.

I am beyond the 2-week return window.

I think Apple is derelict in their testing of the M1 and in their information giving for the new chip.
This is not Apple's fault.

You purchased a first generation version of a completely new device without doing the proper research.
 

Mistborn15

macrumors regular
Feb 5, 2021
216
257
My MBA M1 issues:

  • When connected to HDMI using a Belkin USB C hub, my trackpad doesn't behave normally.
  • My Airpods Pro gives step-brotherly treatment to the M1. Keeps disconnecting in favor of the iPhone. At first I thought it was the infamous bluetooth issue but Magic mouse, MX3 and logi keyboard work without a problem. Even the galaxy buds works better
 

ArPe

macrumors 65816
May 31, 2020
1,281
3,325
This thread is ridiculous.

The M1 MBP is the most closest to perfect release of a new machine with new CPU I have seen. Big Sur is the least buggy new OS I have ever seen.

If someone is a noob has some exotic configuration with driver support still in development or doesn’t do their homework regarding back ups that’s for them to learn about and give feedback instead of peeing themselves silly.
 

ArPe

macrumors 65816
May 31, 2020
1,281
3,325
My MBA M1 issues:

  • When connected to HDMI using a Belkin USB C hub, my trackpad doesn't behave normally.
I have a Belkin HDMI dongle. They can be fussy with some cables, on Intel Macs and PCs too. Some dongles and docks need better shielding.

I switched to the Apple dongle and it works perfect.
 

Mistborn15

macrumors regular
Feb 5, 2021
216
257
I have a Belkin HDMI dongle. They can be fussy with some cables, on Intel Macs and PCs too. Some dongles and docks need better shielding.

I switched to the Apple dongle and it works perfect.
yes, no problems with the Apple dongle with hdmi, usb c and usb a. The Belkin hub now becomes an expensive SD card reader :D
 
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deeddawg

macrumors G5
Jun 14, 2010
12,466
6,564
US
yes, no problems with the Apple dongle with hdmi, usb c and usb a. The Belkin hub now becomes an expensive SD card reader :D

Seems like the issue lies more with the Belkin device than the M1 MBA?

FYI this unit has worked well for me, no issues with an HDMI monitor connected.

Amazon.com: LENTION 3.3FT Long Cable USB C Multiport Hub with 4K HDMI, 4 USB 3.0, Type C Charging Adapter Compatible 2020-2016 MacBook Pro 13/15/16, New Mac Air/Surface, Chromebook, More (CB-C35-1M, Space Gray): Electronics
 
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Mistborn15

macrumors regular
Feb 5, 2021
216
257
Seems like the issue lies more with the Belkin device than the M1 MBA?
Although it may seem that way from my example, many people are having problems with hubs (that work normally on other systems) and quite a few have bricked their macs by charging through the hubs. I'd like to believe it was the issue of the belkin device since it is much cheaper and easier to replace than the mac
 

deeddawg

macrumors G5
Jun 14, 2010
12,466
6,564
US
Although it may seem that way from my example, many people are having problems with hubs (that work normally on other systems) and quite a few have bricked their macs by charging through the hubs. I'd like to believe it was the issue of the belkin device since it is much cheaper and easier to replace than the mac
As for the bolded part - on a couple of the threads on reddit I saw a bunch of reports of this occurring to pre-M1 models, suggesting it is not an M1-specific issue.
 

maflynn

macrumors Haswell
May 3, 2009
73,682
43,740
[MOD NOTE]
A number of posts were removed as they didn't pertain to the topic and/or were derailing the thread. Please stay on topic and be civil.
 
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