IMac locked out after changing the sharing and HD permissions
Made a big mistake with my iMac internal sharing and permissions of HD. I was experimenting with sharing and permissions of the HD info panel section in the administrator account. In this article, I've changed the 'everyone' naming 'no access', but in doing so, it froze the machine. Nothing did not. I tried to restart, but after that the Apple logo and progress bar appears briefly, the screen went white.
I tried to make a backup using Time Machine, but when the time came to clear the HD and replace it with the backup TM, I got an error message saying that the system could not erase the HD. I tried to go into Safe Mode, but he continues to send me the recovery mode.
I have a boot disc separate I made in Carbon Copy Cloner who is somewhere else right now but I can get, and maybe I can boot from that and do a total deletion of the internal HD and start again. But I can do in the meantime? It seems that a configuration option has locked me completely out of the HD to the iMac.
Thank you
Ed
To keep track, I tried something different. I used the option to reinstall OS X when the pane of the utility is on the rise. My iMac then crossed the download process and reinstall OS X. After 40 minutes, when he was all done, my machine is back with the connection, settings, and data in place. I didn't even do a time Machine reinstall data. Problem fixed.
Moral of the story is, don't play with fixed and permission of a lot!
Tags: Mac OS & System Software
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Jerbins-MacBook-Pro: ~ the jerbinyuan list $ diskutil
/ dev/disk0 (internal, physical):
#: NAME SIZE TYPE IDENTIFIER
0: GUID_partition_scheme * GB 251,0 disk0
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No logical volume group CoreStorage found
Jerbins-MacBook-Pro: ~ jerbinyuan$ sudo TPG - vv - r show/dev/disk0
Password:
See the TPG: / dev/disk0: mediasize = 251000193024; SectorSize = 512; blocks = 490234752
See the TPG: / dev/disk0: MBR suspicious to sector 0
See the TPG: / dev/disk0: Pri GPT to sector 1
See the TPG: / dev/disk0: GPT Sec at sector 490234751
start index size summary
0 1 MBR
1 1 Pri GPT header
2 32 table GPT Pri
34 6
40 409600 1 part TPG - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 136992184 2 part TPG - 48465300-0000-11AA-AA11-00306543ECAC
137401824 1269536 3 part TPG - 426F6F74-0000-11AA-AA11-00306543ECAC
768 138671360
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197267456 292966400 5 part TPG - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
490233856 863
490234719 32 table dry GPT
490234751 1 dry GPT header
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Disk: geometry / dev/disk0: 30515/255/63 [490234752 sectors]
Signature: 0xAA55
From end
#: cyl hd s - cyl hd s id [Start - size]
------------------------------------------------------------------------
1: EA 1023 254 63 - 1023 254 63 [1-409639] < unknown ID >
2: AF 1023 254 63 - 1023 254 63 [409640-136992184] HFS +.
3: AB 1023 254 63 - 1023 254 63 Boot Darwin [137401824-1269536]
4: 0 b 1023 254 63-1023 254 63 [138672128-58595328] Win95 FAT-32
Jerbins-MacBook-Pro: ~ jerbinyuan$ sudo dd if = / dev/rdisk0s4 account = 1 2 >/dev/null | hexdump - C
00000000 2nd eb 58 90 42 53 44 20 20 34 34 00 02 20 20 00 | X.BSD 4.4... .|
00000010 02 00 00 00 00 00 00 20 00 f8 ff 00 00 f8 43 08 |... C. |
18 00 00000020 7th e0 03 37 00 00 00 00 00 00 02 00 00 00 |... ~... 7..........|
00000030 01 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |... |
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00000050 20 20 46 41 54 33 32 20 20 20 31 c0 d0 bc 8F fa | FAT32. 1... |
00000060 00 7 c fb 8th d8 e8 00 00 83 19 bb 07 00 fc 5th c6 | | ......^.......|
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000000b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |... |
*
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |... U. |
00000200
Jerbins-MacBook-Pro: ~ jerbinyuan$ diskutil info/dev/disk0s5
Identifier of the instrument: disk0s5
Device node: / dev/disk0s5
Set: No.
Part of the whole: disk0
Device / media name: BOOTCAMP
Volume name: HOMER
Gendarmerie: Yes
Mount point: / Volumes/HOMER
Personality of file system: NTFS
Type (Bundle): ntfs
Name (Visible to the user): Windows NT (NTFS) file system
Partition type: Microsoft Basic Data
Operating system can be installed: No.
Media type: generic
Protocol: PCI
Smart: checked
Volume UUID: 4EC75B8E-02A8-4B26-B7F3-5EA9D0A47FA9
Disk / Partition UUID: 776C43C1-7E4C-4997-BDF5-A91FD406DEBD
Total size: 150.0 GB (149998796800 Bytes) (exactly 292966400 512-Byte-units)
Amount of free space: 18.5 GB (18479718400 Bytes) (exactly 36093200 512-Byte-units)
Device block size: 512 bytes
Allocation block size: 4096 bytes
Support read-only: No.
Volume read-only: Yes
Location of the device: internal
Removable media: no
Solid State: Yes
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