Je cherche de l'aide avec un lecteur externe qui continue à éjecter. J'ai GPT qui a montré que mes secteurs pour mes partitions GUID ne semblaient pas corrects. J'ai tenté une réparation et j'ai eu des erreurs suivies par la perte de ma partition EFI. J'ai pu rajouter la partition EFI et cloner si, à partir d'un autre disque dur externe, je suis de retour à la maison, ce qui me permet d'accéder aux fichiers, mais le lecteur sera démonté quelques minutes, puis remonté. J'ai inclus beaucoup de coupes de mon heure de terminal dans l'espoir que quelqu'un puisse avoir des pensées. Je pensais à essayer Techtools, DW ou Drive Genius mais je ne suis pas sûr que l’une de ces applications puisse aider ici. Les données FYI sont sauvegardées avec backblaze, mais j'espère que ces données pourront être corrigées sans formatage ni demande de lecteur de backblaze.
/dev/disk4 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *3.0 TB disk4
1: EFI 209.7 MB disk4s1
2: Apple_HFS My Book 3Tb 3.0 TB disk4s2
Toms-Mac-mini:~ tomforti$ diskutil info disk4
Device Identifier: disk4
Device Node: /dev/disk4
Whole: Yes
Part of Whole: disk4
Device / Media Name: My Book 1130
Volume Name: Not applicable (no file system)
Mounted: Not applicable (no file system)
File System: None
Content (IOContent): GUID_partition_scheme
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Disk Size: 3.0 TB (3000558944256 Bytes) (exactly 5860466688 512-Byte-Units)
Device Block Size: 4096 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (no file system)
Device Location: External
Removable Media: Fixed
Virtual: No
OS 9 Drivers: No
Low Level Format: Not supported
Toms-Mac-mini:~ tomforti$ sudo gpt show disk4
start size index contents
0 1 PMBR
1 1 Pri GPT header
2 4 Pri GPT table
6 51200 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
51206 732474357 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
732525563 32768
732558331 4 Sec GPT table
732558335 1 Sec GPT header
Disk: /dev/disk4 geometry: 45599/255/63 [732558336 sectors]
Sector size: 4096 bytes
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 732558335] <Unknown ID>
2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
Toms-Mac-mini:~ tomforti$ diskutil verifyDisk disk4
Started partition map verification on disk4
Checking prerequisites
Checking the partition list
Checking the partition map size
Checking for an EFI system partition
Checking the EFI system partition's size
Checking the EFI system partition's file system
Problems were found with the partition map which might prevent booting
Error: -69766: The partition map needs to be repaired because there's a problem with the EFI system partition's file system
Underlying error: 8: Exec format error
Toms-Mac-mini:~ tomforti$ sudo diskutil repairDisk disk4
Password:
Repairing the partition map might erase disk4s1, proceed? (y/N) y
Started partition map repair on disk4
Checking prerequisites
Checking the partition list
Adjusting partition map to fit whole disk as required
Checking for an EFI system partition
Checking the EFI system partition's size
Checking the EFI system partition's file system
Repairing the EFI system partition's file system
Updating boot support partitions for the volume as required
Creating a new EFI system partition
Problems were encountered during repair of the partition map
Error: -69764: Couldn't repair the partition map because a new EFI system partition couldn't be created
Toms-Mac-mini:~ tomforti$ sudo diskutil repairDisk disk4
Repairing the partition map might erase disk4s1, proceed? (y/N) y
Started partition map repair on disk4
Checking prerequisites
Checking the partition list
Problems were encountered during repair of the partition map
Error: -69770: Partition map check failed because no slices were found
/dev/disk4 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *3.0 TB disk4
1: Apple_HFS My Book 3Tb 3.0 TB disk4s2
Toms-Mac-mini:~ tomforti$ sudo gpt -r show disk4
Password:
start size index contents
0 1 PMBR
1 1 Pri GPT header
2 4 Pri GPT table
6 51200
51206 731615488 1 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
731666694 891637
732558331 4 Sec GPT table
732558335 1 Sec GPT header
hard-drive
partition
Tom Forti
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