Speriamo che quella domanda sia abbastanza chiara, e spero che questo sia solo io che sono stupido. Quando eseguo l'avvio nella partizione di ripristino, nel terminale, ed eseguo 'diskutil list', ottengo alcuni dischi piccoli e apparentemente non validi (a partire da / dev / disk2):
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 120.5 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *1.3 GB disk1
1: Apple_partition_map 30.7 KB disk1s1
2: Apple_HFS OS X Base System 1.3 GB disk1s2
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk2
/dev/disk3
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk3
/dev/disk4
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk4
/dev/disk5
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk5
/dev/disk6
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk6
/dev/disk7
#: TYPE NAME SIZE IDENTIFIER
0: untitled *6.3 MB disk7
/dev/disk8
#: TYPE NAME SIZE IDENTIFIER
0: untitled *2.1 MB disk8
/dev/disk9
#: TYPE NAME SIZE IDENTIFIER
0: untitled *1.0 MB disk9
/dev/disk10
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk10
/dev/disk11
#: TYPE NAME SIZE IDENTIFIER
0: untitled *524.3 KB disk11
/dev/disk12
#: TYPE NAME SIZE IDENTIFIER
0: untitled *1.0 MB disk12
Ho eseguito "diskutil info" su ciascuno dei dischi e ho ricevuto il seguente output:
Device Identifier: disk2
Device Node: /dev/disk2
Part of Whole: disk2
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /Volumes
Escaped with Unicode: /Volumes
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: C8F2576E-A234-3178-AADC-F12393BB2445
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 376.8 KB (376832 Bytes) (exactly 736 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk3
Device Node: /dev/disk3
Part of Whole: disk3
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /private/var/tmp
Escaped with Unicode: /private/var/tmp
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: DC4623F9-52B3-384F-8AF4-67E833986A4E
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 380.9 KB (380928 Bytes) (exactly 744 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk4
Device Node: /dev/disk4
Part of Whole: disk4
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /private/var/run
Escaped with Unicode: /private/var/run
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: AEED02C4-DF3A-35A7-BF6C-1291DB7DF5EA
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 364.5 KB (364544 Bytes) (exactly 712 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk5
Device Node: /dev/disk5
Part of Whole: disk5
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /System/Installation
Escaped with Unicode: /System/Installation
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: FA0AB5AC-4A8B-3330-890A-B08290C44B83
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 376.8 KB (376832 Bytes) (exactly 736 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk6
Device Node: /dev/disk6
Part of Whole: disk6
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /private/var/db
Escaped with Unicode: /private/var/db
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 21B26EE7-E7B2-310C-8ACE-AB3D85036C12
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 258.0 KB (258048 Bytes) (exactly 504 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk7
Device Node: /dev/disk7
Part of Whole: disk7
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /private/var/folders
Escaped with Unicode: /private/var/folders
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 57F696D8-737A-3AAD-B917-D6B010FB437F
System Image: Yes
Total Size: 6.3 MB (6291456 Bytes) (exactly 12288 512-Byte-Units)
Volume Free Space: 4.5 MB (4456448 Bytes) (exactly 8704 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk8
Device Node: /dev/disk8
Part of Whole: disk8
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /private/var/root/Library
Escaped with Unicode: /private/var/root/Library
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 8CC74661-9E77-32D3-8C6B-85865271D5CD
System Image: Yes
Total Size: 2.1 MB (2097152 Bytes) (exactly 4096 512-Byte-Units)
Volume Free Space: 1.2 MB (1228800 Bytes) (exactly 2400 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk9
Device Node: /dev/disk9
Part of Whole: disk9
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /Library/ColorSync/Profiles/Displays
Escaped with Unicode: /Library/ColorSync/Profiles/Displays
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 2F53A1B0-92F3-3945-960B-82E96D9A1DA6
System Image: Yes
Total Size: 1.0 MB (1048576 Bytes) (exactly 2048 512-Byte-Units)
Volume Free Space: 901.1 KB (901120 Bytes) (exactly 1760 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk10
Device Node: /dev/disk10
Part of Whole: disk10
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /Library/Preferences
Escaped with Unicode: /Library/Preferences
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 4F7EA62F-FC30-3C29-8FFB-C1711B2AD0EC
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 356.4 KB (356352 Bytes) (exactly 696 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk11
Device Node: /dev/disk11
Part of Whole: disk11
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /Library/Preferences/SystemConfiguration
Escaped with Unicode: /Library/Preferences/SystemConfiguration
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 22FE002E-D4B9-3405-BA81-95B03A62A222
System Image: Yes
Total Size: 524.3 KB (524288 Bytes) (exactly 1024 512-Byte-Units)
Volume Free Space: 360.4 KB (360448 Bytes) (exactly 704 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Device Identifier: disk12
Device Node: /dev/disk12
Part of Whole: disk12
Device / Media Name: Apple disk image Media
Volume Name: untitled
Escaped with Unicode: untitled
Mounted: Yes
Mount Point: /Library/Keychains
Escaped with Unicode: /Library/Keychains
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Owners: Enabled
Content (IOContent): None
OS Can Be Installed: No
Media Type: Generic
Protocol: Disk Image
SMART Status: Not Supported
Volume UUID: 5BB6904E-F8BD-3D1F-99A7-F37ECDE58587
System Image: Yes
Total Size: 1.0 MB (1048576 Bytes) (exactly 2048 512-Byte-Units)
Volume Free Space: 872.4 KB (872448 Bytes) (exactly 1704 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: No
Ejectable: Yes
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
=====================================================================
Alcune unità sono montate in luoghi familiari (come / Volumi) e alcune di esse sono montate in luoghi meno familiari (come / private / var). Tuttavia, non ricordo che nessuna di queste unità sia stata montata la prima volta che ho avuto il mio Mac. Qualcuno forse sa perché questi dischi si presentano e / o se posso rimuoverli? Grazie!