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TamaraB
Question The Current Paradigm
Premium
join:2000-11-08
Da Bronx
Reviews:
·Optimum Online
·Clearwire Wireless

[OS X] Time Machine Error

 
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Hi:

I have 2 3TB Time Capsules gigabit connected and one Seagate 3TB Hard disk Thunderbolt connected for TM backups. I have a second identical Seagate drive which I swap out each month and store off-site. This has been working well for me for 3 months now. Today I received the following TM error:

Files can’t be copied onto the backup disk because it appears to be read-only.

Latest successful backup: Yesterday, 5:48 PM

As seen below, I can read and write to the volume via terminal OK.

Bob$ cd /Volumes/Seagate\ 3TB/
Roberts-iMac:Seagate 3TB Bob$ ls -al
total 2112
drwxrwxr-x   15 Bob   staff     578 Dec  3 22:42 .
drwxrwxrwt@   6 root  admin     204 Jan  7 11:40 ..
-rw-r--r--@   1 Bob   staff    6148 Jan  7 11:30 .DS_Store
drwx------    5 Bob   staff     170 Nov 29 00:06 .Spotlight-V100
drwxrwxrwt@   3 Bob   staff     102 Dec  3 15:56 .TemporaryItems
d-wx-wx-wt    2 Bob   staff      68 Nov 29 00:06 .Trashes
-rw-r--r--    1 root  wheel  925820 Jun 27  2012 .VolumeIcon.icns
-rw-r--r--@   1 Bob   staff     311 Dec  3 15:56 .apdisk
-rw-r--r--    1 Bob   staff       0 Nov 29 00:09 .com.apple.timemachine.supported
-rw-r--r--    1 root  staff     737 Nov 29 07:08 .disk_label
drwx------  113 Bob   staff    3842 Jan  7 11:40 .fseventsd
drwxr-xr-x+   6 root  staff     204 Nov 29 07:08 Backups.backupdb
-rwxr-xr-x@   1 root  wheel  115716 Sep 18 22:12 tmbootpicker.efi
 
Roberts-iMac:Seagate 3TB Bob$ touch test
Roberts-iMac:Seagate 3TB Bob$ ls -al
total 2112
drwxrwxr-x   16 Bob   staff     612 Jan  7 11:41 .
drwxrwxrwt@   6 root  admin     204 Jan  7 11:40 ..
-rw-r--r--@   1 Bob   staff    6148 Jan  7 11:30 .DS_Store
drwx------    5 Bob   staff     170 Nov 29 00:06 .Spotlight-V100
drwxrwxrwt@   3 Bob   staff     102 Dec  3 15:56 .TemporaryItems
d-wx-wx-wt    2 Bob   staff      68 Nov 29 00:06 .Trashes
-rw-r--r--    1 root  wheel  925820 Jun 27  2012 .VolumeIcon.icns
-rw-r--r--@   1 Bob   staff     311 Dec  3 15:56 .apdisk
-rw-r--r--    1 Bob   staff       0 Nov 29 00:09 .com.apple.timemachine.supported
-rw-r--r--    1 root  staff     737 Nov 29 07:08 .disk_label
drwx------  113 Bob   staff    3842 Jan  7 11:40 .fseventsd
drwxr-xr-x+   6 root  staff     204 Nov 29 07:08 Backups.backupdb
-rw-r--r--    1 Bob   staff       0 Jan  7 11:41 test
-rwxr-xr-x@   1 root  wheel  115716 Sep 18 22:12 tmbootpicker.efi
 
Roberts-iMac:Seagate 3TB Bob$ rm test
Roberts-iMac:Seagate 3TB Bob$ ls -al
total 2112
drwxrwxr-x   15 Bob   staff     578 Jan  7 11:41 .
drwxrwxrwt@   6 root  admin     204 Jan  7 11:40 ..
-rw-r--r--@   1 Bob   staff    6148 Jan  7 11:30 .DS_Store
drwx------    5 Bob   staff     170 Nov 29 00:06 .Spotlight-V100
drwxrwxrwt@   3 Bob   staff     102 Dec  3 15:56 .TemporaryItems
d-wx-wx-wt    2 Bob   staff      68 Nov 29 00:06 .Trashes
-rw-r--r--    1 root  wheel  925820 Jun 27  2012 .VolumeIcon.icns
-rw-r--r--@   1 Bob   staff     311 Dec  3 15:56 .apdisk
-rw-r--r--    1 Bob   staff       0 Nov 29 00:09 .com.apple.timemachine.supported
-rw-r--r--    1 root  staff     737 Nov 29 07:08 .disk_label
drwx------  113 Bob   staff    3842 Jan  7 11:40 .fseventsd
drwxr-xr-x+   6 root  staff     204 Nov 29 07:08 Backups.backupdb
-rwxr-xr-x@   1 root  wheel  115716 Sep 18 22:12 tmbootpicker.efi
Roberts-iMac:Seagate 3TB Bob$ 
 

Disk Utility finds no problem with the device.

Any ideas?

--
"Remember, remember the fifth of November.
Gunpowder, Treason and Plot.
I see no reason why Gunpowder Treason
Should ever be forgot."

"People should not be afraid of their governments. Governments should be afraid of their people"


kitsune

join:2001-11-26
Sacramento, CA

If the drive is connected directly to the computer via USB try and see if the ignore ownership is turned on. Having that turned on will usually resolve that issue. Otherwise I would try repairing permissions on the drive.

Also, FYI, just because you have write access to the root folder doesn't necessarily mean you have access to the necessary subfolder.



Thinkdiff
Premium,MVM
join:2001-08-07
Bronx, NY
kudos:11
reply to TamaraB

Looks like your Backups.backupdb folder is owned by root, making it read-only for you. I'm not sure if those is the correct permissions (don't have my TM drive connected right now), but you can try changing it temporarily to see if it starts working.

You may also have to do a recursive change if all subfolders are also incorrect.
--
University of Southern California - Fight On!



TamaraB
Question The Current Paradigm
Premium
join:2000-11-08
Da Bronx
Reviews:
·Optimum Online
·Clearwire Wireless
reply to kitsune

said by kitsune:

If the drive is connected directly to the computer via USB try and see if the ignore ownership is turned on. Having that turned on will usually resolve that issue. Otherwise I would try repairing permissions on the drive.

Ignore ownership would adversely affect recovery, as files being recovered would not have the proper uid/gid. Yes?

Repair permissions on the drive ran without anything being repaired. However, afterwards, the TM started up properly on that drive. As far as I can see, all perms are as they were before, including the root-owned dirs.
Roberts-iMac:Seagate 3TB Bob$ ls -al
total 2112
drwxrwxr-x   15 Bob   staff     578 Jan  7 11:41 .
drwxrwxrwt@   6 root  admin     204 Jan  7 19:55 ..
-rw-r--r--@   1 Bob   staff    6148 Jan  7 11:30 .DS_Store
drwx------    5 Bob   staff     170 Nov 29 00:06 .Spotlight-V100
drwxrwxrwt@   3 Bob   staff     102 Dec  3 15:56 .TemporaryItems
d-wx-wx-wt    2 Bob   staff      68 Nov 29 00:06 .Trashes
-rw-r--r--    1 root  wheel  925820 Jun 27  2012 .VolumeIcon.icns
-rw-r--r--@   1 Bob   staff     311 Dec  3 15:56 .apdisk
-rw-r--r--    1 Bob   staff       0 Nov 29 00:09 .com.apple.timemachine.supported
-rw-r--r--    1 root  staff     737 Nov 29 07:08 .disk_label
drwx------  117 Bob   staff    3978 Jan  7 14:23 .fseventsd
drwxr-xr-x+   6 root  staff     204 Nov 29 07:08 Backups.backupdb
-rwxr-xr-x@   1 root  wheel  115716 Sep 18 22:12 tmbootpicker.efi
 
Roberts-iMac:Seagate 3TB Bob$ cd Backups.backupdb/
Roberts-iMac:Backups.backupdb Bob$ ls -al
total 0
drwxr-xr-x+  6 root  staff  204 Nov 29 07:08 .
drwxrwxr-x  15 Bob   staff  578 Jan  7 11:41 ..
drwxr-xr-x   3 root  staff  102 Nov 29 07:08 .RecoverySets
drwx------   2 root  staff   68 Dec  5 18:25 .spotlight_repair
drwx------   2 root  staff   68 Jan  7 18:57 .spotlight_temp
drwxr-xr-x@ 13 root  staff  442 Jan  7 18:57 Robert’s iMac
 
Roberts-iMac:Backups.backupdb Bob$ cd Robert’s\ iMac/
Roberts-iMac:Robert’s iMac Bob$ ls -al
total 16
drwxr-xr-x@ 13 root  staff  442 Jan  7 18:57 .
drwxr-xr-x+  6 root  staff  204 Nov 29 07:08 ..
drwxr-xr-x@  8 root  staff  272 Nov 29 07:08 2012-11-29-070853
drwxr-xr-x@  8 root  staff  272 Dec  6 00:29 2012-12-06-002937
drwxr-xr-x@  8 root  staff  272 Dec  9 00:52 2012-12-09-005255
drwxr-xr-x@  8 root  staff  272 Jan  2 13:09 2013-01-02-130913
drwxr-xr-x@  8 root  staff  272 Jan  3 04:00 2013-01-03-040039
drwxr-xr-x@  8 root  staff  272 Jan  4 00:48 2013-01-04-004845
drwxr-xr-x@  8 root  staff  272 Jan  5 01:49 2013-01-05-014937
drwxr-xr-x@  8 root  staff  272 Jan  6 00:52 2013-01-06-005232
drwxr-xr-x@  8 root  staff  272 Jan  7 11:41 2013-01-07-114154
drwxr-xr-x@  8 root  staff  272 Jan  7 18:57 2013-01-07-185749
lrwxr-xr-x   1 root  staff   17 Jan  7 18:57 Latest -> 2013-01-07-185749
 

It's fixed, but I don't know or understand why! Also, apparently the root ownership is correct.

--
"Remember, remember the fifth of November.
Gunpowder, Treason and Plot.
I see no reason why Gunpowder Treason
Should ever be forgot."

"People should not be afraid of their governments. Governments should be afraid of their people"



kerriskandie

join:2001-10-09
Coram, NY
reply to TamaraB

See,.........

this kind of situation is EXACTLY why I won't use Apples Icandy Time Machine for 'mission critical' backups!!


kitsune

join:2001-11-26
Sacramento, CA
reply to TamaraB

said by TamaraB:

said by kitsune:

If the drive is connected directly to the computer via USB try and see if the ignore ownership is turned on. Having that turned on will usually resolve that issue. Otherwise I would try repairing permissions on the drive.

Ignore ownership would adversely affect recovery, as files being recovered would not have the proper uid/gid. Yes?

Actually, that setting is what is recommended by Apple. See this article: »support.apple.com/kb/HT5096


Thinkdiff
Premium,MVM
join:2001-08-07
Bronx, NY
kudos:11

Read that again.. It says it should not be checked.

TamaraB is correct. You'll lose all of the file ownership in the backp if you enable that.
--
University of Southern California - Fight On!