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Catalina on pen flash drive

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Vyzantion

Vyzantion

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Would it be possible to install Catalina on a 64 gb pen flash drive? I mean, not to create the installation pen drive, but to use the 64 gb pen flash drive like some install macOS on an external SSD.
 
Probably it is convenient to create a working in everything installation, then complete post installation adjustments on an SSD and then clone it on a USB pen drive, mounting the EFI and copying the EFI of the SSD with the temporary complete installation.
Surely you save a lot of time, if you have to do a lot of reboots for the changes in the EFI and avoid any strange behavior in the selection of the various disks in the reboots, during the installation phase.
In any case the pen drive should be among the fastest and in any case the system would be very slow. I don't know how much it is convenient because with the EFI optimized the pen drive could only move on practically identical systems.
I don't know if there could be problems with APFS, but for SSD to spin disk clones there doesn't seem to be any.
It is only the opinion of one who understands very little about the subject
 
Simon70 said:
Probably it is convenient to create a working in everything installation, then complete post installation adjustments on an SSD and then clone it on a USB pen drive, mounting the EFI and copying the EFI of the SSD with the temporary complete installation.
Surely you save a lot of time, if you have to do a lot of reboots for the changes in the EFI and avoid any strange behavior in the selection of the various disks in the reboots, during the installation phase.
In any case the pen drive should be among the fastest and in any case the system would be very slow. I don't know how much it is convenient because with the EFI optimized the pen drive could only move on practically identical systems.
I don't know if there could be problems with APFS, but for SSD to spin disk clones there doesn't seem to be any.
It is only the opinion of one who understands very little about the subject
Click to expand...
I do not have acces to an extra SSD to use it for this. The only way is to install directly on the pen drive.
 
I hope that someone more experienced can give you some information even on the more "experimental" way you would like to follow.
I could tell you to try, but without experience it could just be a suggestion to waste time, I'm sorry.
Bootable clones work and can be done quite easily, if you are determined to create that kind of pen drive, that remains a way (maybe even on a mechanical disk) if the other is impossible or too long and complicated for some reason.
 
Simon70 said:
I hope that someone more experienced can give you some information even on the more "experimental" way you would like to follow.
I could tell you to try, but without experience it could just be a suggestion to waste time, I'm sorry.
Bootable clones work and can be done quite easily, if you are determined to create that kind of pen drive, that remains a way (maybe even on a mechanical disk) if the other is impossible or too long and complicated for some reason.
Click to expand...
It can be done on a real Mac but even on a USB 3.0 Flash drive, it is too slow compared to an External SSD connected through a USB 3.0 Port. It can take 6-8 hours to complete the installation and the Display screen may not show any progress and reboot after install can be snail pace.

I have never considered using a Flash disk to create a Hackintosh system live disk like Linux.
 
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cmn699 said:
It can be done on a real Mac but even on a USB 3.0 Flash drive, it is too slow compared to an External SSD connected through a USB 3.0 Port. It can take 6-8 hours to complete the installation and the Display screen may not show any progress and reboot after install can be snail pace.

I have never considered using a Flash disk to create a Hackintosh system live disk like Linux.
Click to expand...
I have made several attempts to install it on the pen drive.Catalina got stuck two times on installation 7 minutes left, and it stayed there for 3 hours. I have tried to install Mojave on the same pen drive, for testing reasons (Mojave installs and works fine on this hardware), it took an hour to pass from 14 minutes left to 13 minutes left.
I currently do not have money for a portable SSD, or any major hardware acquisition, I have to manage the issues with what I have now.
 
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