Just as the title says - I have been at this for about 10-12 hours now, and I am completely stumped.
The machine is running the latest version of Sonoma (which I'm learning has some serious issues with external drives) and no matter what, it cannot see any external volumes or devices as bootable. That includes the following:
Other partitions on the main internal SSD
A bootable Mac OS USB stick
A bootable Ubuntu USB stick
Worth nothing as well that it does not see my internal 4M2 raid array as bootable either.
SIP disabled, all security off, FileVault off, no encryption, secure boot totally off, external bootable devices allowed. Still, it only sees the Sonoma partition as a boot drive both in system preferences and in recovery mode, no matter what I do.
I am completely at a loss here, I've never seen something like this before. The most frustrating part is that I've made a partition on the main drive to downgrade to Ventura, however I can't even get the machine to see the bootable USB installer that I just made as a startup disk.
All my research so far seems to indicate that Sonoma basically flakes out constantly when it comes to external drives, and in fact have had my 4M2 raid array drop out and not come back without multiple restarts. Anyone else experience anything like this?
Thanks
The machine is running the latest version of Sonoma (which I'm learning has some serious issues with external drives) and no matter what, it cannot see any external volumes or devices as bootable. That includes the following:
Other partitions on the main internal SSD
A bootable Mac OS USB stick
A bootable Ubuntu USB stick
Worth nothing as well that it does not see my internal 4M2 raid array as bootable either.
SIP disabled, all security off, FileVault off, no encryption, secure boot totally off, external bootable devices allowed. Still, it only sees the Sonoma partition as a boot drive both in system preferences and in recovery mode, no matter what I do.
I am completely at a loss here, I've never seen something like this before. The most frustrating part is that I've made a partition on the main drive to downgrade to Ventura, however I can't even get the machine to see the bootable USB installer that I just made as a startup disk.
All my research so far seems to indicate that Sonoma basically flakes out constantly when it comes to external drives, and in fact have had my 4M2 raid array drop out and not come back without multiple restarts. Anyone else experience anything like this?
Thanks