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Thread: USB HFS or APFS

  1. #1
    USB HFS or APFS
    Dittoman1's Avatar
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    USB HFS or APFS
    I was wondering and thought to ask a pro, Since I installed High Sierra yesterday and now I have APFS file system and I also have 32 GB USB thumb Drive and see its still HFS and its working ok. Should I formatted USB to APFS, if so do I fill in. blank, Journal and UUID or is it other. Now about hard drive ( SSD ) is it other than Journal and UUID?
    Thank You
    Thanks in Advance
    Ron

  2. #2
    USB HFS or APFS
    harryb2448's Avatar
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    Ron if you are going to use the thumb drive exclusively with HS, would suggest yes. Here is a link about formatting external hard drives to APFS, so thumb drives would be the same:-


    https://www.pocket-lint.com/laptops/...es-to-apfs-too
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  3. #3
    USB HFS or APFS
    Dittoman1's Avatar
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    Quote Originally Posted by harryb2448 View Post
    Ron if you are going to use the thumb drive exclusively with HS, would suggest yes. Here is a link about formatting external hard drives to APFS, so thumb drives would be the same:-


    https://www.pocket-lint.com/laptops/...es-to-apfs-too
    Perfect, I google and got Youtube and one is not captioned, since I am deaf thats out and found another one with captioned but damn its too fast, hard to follow. The one u send is perfect. Thank you
    Thanks in Advance
    Ron

  4. #4
    USB HFS or APFS
    harryb2448's Avatar
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    My pleasure mate.

    Remember with forums closing Sunday, send email to Dennis (dtravis) to remain in contact when the admins try to set up a new forum.
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  5. #5
    USB HFS or APFS
    RadDave's Avatar
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    Quote Originally Posted by Dittoman1 View Post
    I was wondering and thought to ask a pro, Since I installed High Sierra yesterday and now I have APFS file system and I also have 32 GB USB thumb Drive and see its still HFS and its working ok. Should I formatted USB to APFS, if so do I fill in. blank, Journal and UUID or is it other. Now about hard drive ( SSD ) is it other than Journal and UUID?
    Thank You
    Quote Originally Posted by harryb2448 View Post
    Ron if you are going to use the thumb drive exclusively with HS, would suggest yes. Here is a link about formatting external hard drives to APFS, so thumb drives would be the same:-

    https://www.pocket-lint.com/laptops/...es-to-apfs-too
    Hi Guys - I have about a half dozen SanDisk USB flash drives formatted as 'Mac OS Extended' & an external La Cie SSD (same format) used as an additional backup to my 'personal files' on my MBPro - NOW, I'll keep the flash drives as is because I do use them on my iMac w/ a fusion drive that is still on Sierra (if converted, the iMac could not read them, so a point to remember).

    Well, I plugged both of the SanDisk drives into the MBPro and opened Disk Utility, then hit the 'Edit' menu item (first pic below) - the 'Convert to APFS' was grayed out; however, when I plugged in my La Cie SSD drive, the 'edit' option was available, interesting (second pic) - SO, these external USB drives may be manufacturer dependent relative to Disk Utility and APFS conversion, don't know? So, visiting the SanDisk Website, directions are given on the link for the conversion of their USB flash drives - take a look if interested; basically, the drives need to be first erased and then reformatted as APFS, thus a need to backup the information on the soon to be erased drive(s) - not sure if that is also true of other flash drive makers? Dave
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    SH1.png
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    SH2.png
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  6. #6
    USB HFS or APFS
    Dittoman1's Avatar
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    Quote Originally Posted by RadDave View Post
    Hi Guys - I have about a half dozen SanDisk USB flash drives formatted as 'Mac OS Extended' & an external La Cie SSD (same format) used as an additional backup to my 'personal files' on my MBPro - NOW, I'll keep the flash drives as is because I do use them on my iMac w/ a fusion drive that is still on Sierra (if converted, the iMac could not read them, so a point to remember).

    Well, I plugged both of the SanDisk drives into the MBPro and opened Disk Utility, then hit the 'Edit' menu item (first pic below) - the 'Convert to APFS' was grayed out; however, when I plugged in my La Cie SSD drive, the 'edit' option was available, interesting (second pic) - SO, these external USB drives may be manufacturer dependent relative to Disk Utility and APFS conversion, don't know? So, visiting the SanDisk Website, directions are given on the link for the conversion of their USB flash drives - take a look if interested; basically, the drives need to be first erased and then reformatted as APFS, thus a need to backup the information on the soon to be erased drive(s) - not sure if that is also true of other flash drive makers? Dave
    .
    SH1.png
    .
    SH2.png
    About converting drive to APFS, Go down and Look at this comments say not to Convert to APFS,

    https://www.pocket-lint.com/laptops/...es-to-apfs-too
    Thanks in Advance
    Ron

  7. #7
    USB HFS or APFS
    RadDave's Avatar
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    Quote Originally Posted by Dittoman1 View Post
    About converting drive to APFS, Go down and Look at this comments say not to Convert to APFS,

    https://www.pocket-lint.com/laptops/...es-to-apfs-too

    Hi Guys - I have about a half dozen SanDisk USB flash drives formatted as 'Mac OS Extended' & an external La Cie SSD (same format) used as an additional backup to my 'personal files' on my MBPro - NOW, I'll keep the flash drives as is because I do use them on my iMac w/ a fusion drive that is still on Sierra (if converted, the iMac could not read them, so a point to remember).
    Thanks Ron - already aware of the issue as pointed out in my previous comments - re-quoted above in bold; SO, for those reading this thread, please understand that if you convert your USB flash drives to APFS, then the device cannot be read on a Mac OS Extended drive, such as my iMac - Dave
    Last edited by RadDave; 12-27-2017 at 12:16 AM.
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  8. #8
    USB HFS or APFS
    IWT's Avatar
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    For anyone on macOS High Sierra, or contemplating upgrading:

    Just remember that Time Machine will only work with Drives formatted HFS+ (OS X Extended (Journaled). TM cannot be used with a Drive formatted APFS.

    https://support.apple.com/en-gb/guid...ne-mh15139/mac
    https://www.macworld.com/article/324...-not-good.html


    If anyone accidentally formats a TM backup as APFS, this article tells you how to copy your TM backup back to a HFS+ Hard Drive: https://www.macworld.com/article/312...kup-drive.html

    Ian
    Ian

  9. #9
    USB HFS or APFS
    harryb2448's Avatar
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    Another reason to abadon TM in favour of cloning IMHO.
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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