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I'm trying to mount a 5TB external USB disk into an Ubuntu 20.04 LTS. Among other things the utility expects a container with the apple FS and a mount point. Maybe I should mention that it is an encrypted filesystem.

Anyway, the first attempt to mount yielded:

root@kuku-Lenovo-Y70-70-Touch:~# fsapfsmount /dev/sdb /media/Volumes
fsapfsmount 20190210

Unable to open source container
libfsapfs_container_superblock_read_data: invalid object type: 0x00000000.
libfsapfs_container_superblock_read_file_io_handle: unable to read container superblock data.
libfsapfs_internal_container_open_read: unable to read container superblock at offset: 0 (0x00000000).
libfsapfs_container_open_file_io_handle: unable to read from file IO handle.
mount_handle_open: unable to open container.


root@kuku-Lenovo-Y70-70-Touch:~# fdisk /dev/sdb


Willkommen bei fdisk (util-linux 2.34).
Änderungen werden vorerst nur im Speicher vorgenommen, bis Sie sich
entscheiden, sie zu schreiben.
Seien Sie vorsichtig, bevor Sie den Schreibbefehl anwenden.


GPT-PMBR-Größenunterschied (4294967294 != 9767475199) wird durch »write« korrigiert.


Befehl (m für Hilfe): p


Festplatte /dev/sdb: 4,56 TiB, 5000947302400 Bytes, 9767475200 Sektoren
Festplattenmodell: Elements 2620

Einheiten: Sektoren von 1 * 512 = 512 Bytes
Sektorgröße (logisch/physikalisch): 512 Bytes / 4096 Bytes
E/A-Größe (minimal/optimal): 4096 Bytes / 4096 Bytes
Festplattenbezeichnungstyp: gpt
Festplattenbezeichner: A2BXXXF3-DXX4-4XXX-AEA8-803934XXXXXX


Gerät          Anfang       Ende   Sektoren Größe Typ
/dev/sdb1          40     409639     409600  200M EFI-System
/dev/sdb2      409640 9767213015 9766803376  4,6T Apple Core Speicher
/dev/sdb3  9767213016 9767475159     262144  128M Apple Boot


Befehl (m für Hilfe):

Trying to specify an offset, e.g. 409640, also fails. WHat may I be doing wrong?

Another thing is the GPT-PMBR size difference being claimed. I don't understand that. The disk has been generated as an encrypted Volume on a macOS 10.15.6.

Krischu
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  • The answer here https://askubuntu.com/questions/1038816/how-do-i-mount-a-gpt-drive-in-ubuntu-18-04-lts might work for you even though it's older. – darth_epoxy Sep 28 '20 at 08:12
  • were you able to figure this out? i have a similar problem. you said that it was encrypted and there is a password flag in your example. mine is not encrypted though so i don't think that's the issue. – DAB Sep 30 '21 at 21:59

1 Answers1

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You're trying to mount an encrypted volume without supplying a password.

fsapfsmount -p <password> <source>

The instructions are clear in man fsapfsmount

Bob
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