PSA: if you try to partition an M1 mac with Disk Utility, it works, but it breaks recovery mode. Presumably the bootloader hardcodes that recovery is partition #3... instead of using GPT partition type codes as it should. Deleting the partition fixes it...
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is the recovery partition always at the end / can you not create a partition _after_ the recovery partition?
Not with Disk Utility afaict (it just does some automagic). Remains to be seen what happens when I get real partitioning tools on this and investigate. Indeed the recovery partition was at the end, but Startup Options failed to launch when I added a new partition before it.
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oh yeah, fair -- disk utility is famously bad at this :/ (see the "you can create multiple 1 TB partitions inside a 1 TB drive" post from HN a few days back)
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Hrm, is this within the APFS container / CoreStorage volume (I can’t keep track of how many layers they’re at now) or actual GPT partitions?
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Actual GPT partitions. There are three APFS containers on the SSD. I shrunk the middle (main) one and created a strandard (placeholder) HFS+ partition.
End of conversation
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