1 2 Previous Next 26 Replies Latest reply: Oct 15, 2012 9:42 AM by BDAqua
strawbale Level 1 Level 1 (0 points)

I've been using two (identical) external FW400 HDs for backing up two (identical) Macmini's that we have in the house, backing up both Macmini's onto both HDs satisfactorily for the last 3,5 years or so. Today backing up MacMini A and B onto HD#1 went fine, then I couldn't "Change Disk..." (to backup onto HD#2 on MM-A anymore (stayed 'grey', so not 'clickable'), but could still "Change Disk..." on MM-B.

So now I'm 'stuck' with using only HD#1 for MM-A as it still 'recognizes the last used backup drive, I suppose, because eventhough I cannot click "Change Disk..." anymore I can still backup onto HD#1 by rightclicking the TimeMachine ico and then clicking "Backup Now". On MM-2 I can still use both HDs.

 

Does anyone have a tip how to make "Change Disk..." work again on MM-A? (I did disconnect and unplug the ext HD, with its own power supply, and then restart MM-A and then reconnect the ext HD, but to no avail)


Mac mini, Mac OS X (10.5.8), mid-2007 model (2GB RAM, 120 GB HD)
  • 1. Re: "Change Disk..." in Time Machine stays grey
    BDAqua Level 10 Level 10 (116,475 points)

    Open console in Applications>Utilities, check the system log for the date/time of the last problem  & the Startup right after that for clues.

  • 2. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    Thanks BDAqua,

    but I have to admit I'm rather clueless on these things: when opening Console as you suggested, I get a loglist of 3357 messages from 13 may 2010 till 21 august 2010 - nothing before that and nothing afterwards?

  • 3. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    Sorry, now found system.log under log files. I'll have a look at what is says from since the time that it worked, OK? Should I post any info, as it won't mean much to me (sorry)?

  • 4. Re: "Change Disk..." in Time Machine stays grey
    BDAqua Level 10 Level 10 (116,475 points)

    If we can get some current log that mentions backupd or such, that'd be good.

  • 5. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    some system.log details:

     

    at the end of the first (succesful) backup onto HD#1 (called FW1):

    Oct 12 09:13:42 MacPeter /System/Library/CoreServices/backupd[162]: Backup completed successfully.

     

    then when trying to backup HD#2 (called FW2):

    Oct 12 10:41:55 MacPeter /System/Library/CoreServices/backupd[442]: Backup requested by user

    Oct 12 10:41:55 MacPeter /System/Library/CoreServices/backupd[442]: Starting standard backup

    Oct 12 10:41:55 MacPeter /System/Library/CoreServices/backupd[442]: Volume at path /Volumes/Backup FW2 does not appear to be the correct backup volume for this computer.  (Cookies do not match)

    Oct 12 10:42:00 MacPeter /System/Library/CoreServices/backupd[442]: Backup failed with error: 18

     

    This then repeats itself as I tried to mount FW2 several times.

     

    Does this give a clue?

  • 6. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    And then from 10.47 similar logs, with the difference that by then I did manage to backup to FW1 only because the system recognised it 'automatically' as in: I didn't have to choose it through "Change Disk..." which I wouldn't have been able to do as by then that 'button' had become grey/unclickable.

     

    Oct 12 10:47:41 MacPeter /System/Library/CoreServices/backupd[145]: Backup requested by user

    Oct 12 10:47:41 MacPeter /System/Library/CoreServices/backupd[145]: Starting standard backup

    Oct 12 10:47:41 MacPeter /System/Library/CoreServices/backupd[145]: Backing up to: /Volumes/Backup FW 1/Backups.backupdb

    Oct 12 10:47:53 MacPeter /System/Library/CoreServices/backupd[145]: No pre-backup thinning needed: 853.2 MB requested (including padding), 188.69 GB available

    Oct 12 10:48:56 MacPeter /System/Library/CoreServices/backupd[145]: Copied 2621 files (29.5 MB) from volume Macintosh HD.

    Oct 12 10:48:57 MacPeter /System/Library/CoreServices/backupd[145]: No pre-backup thinning needed: 838.1 MB requested (including padding), 188.65 GB available

    Oct 12 10:49:03 MacPeter /System/Library/CoreServices/backupd[145]: Copied 154 files (103 bytes) from volume Macintosh HD.

    Oct 12 10:49:04 MacPeter /System/Library/CoreServices/backupd[145]: Starting post-backup thinning

    Oct 12 10:49:35 MacPeter /System/Library/CoreServices/backupd[145]: Deleted backup /Volumes/Backup FW 1/Backups.backupdb/Peter’s MacMini/2012-09-20-175829: 188.69 GB now available

    Oct 12 10:49:35 MacPeter /System/Library/CoreServices/backupd[145]: Post-back up thinning complete: 1 expired backups removed

    Oct 12 10:49:35 MacPeter /System/Library/CoreServices/backupd[145]: Backup completed successfully.

     

    and then unsuccesful with FW2:

    similar to above

  • 7. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    namely:

    Oct 12 11:15:06 MacPeter /System/Library/CoreServices/backupd[261]: Backup requested by user

    Oct 12 11:15:06 MacPeter /System/Library/CoreServices/backupd[261]: Starting standard backup

    Oct 12 11:15:06 MacPeter /System/Library/CoreServices/backupd[261]: Volume at path /Volumes/Backup FW2 does not appear to be the correct backup volume for this computer.  (Cookies do not match)

    Oct 12 11:15:11 MacPeter /System/Library/CoreServices/backupd[261]: Backup failed with error: 18

    Oct 12 11:15:18 MacPeter /System/Library/CoreServices/backupd[261]: Backup requested by user

    Oct 12 11:15:18 MacPeter /System/Library/CoreServices/backupd[261]: Starting standard backup

    Oct 12 11:15:18 MacPeter /System/Library/CoreServices/backupd[261]: Volume at path /Volumes/Backup FW2 does not appear to be the correct backup volume for this computer.  (Cookies do not match)

    Oct 12 11:15:23 MacPeter /System/Library/CoreServices/backupd[261]: Backup failed with error: 18

     

    Hope this helps?!

  • 8. Re: "Change Disk..." in Time Machine stays grey
    BDAqua Level 10 Level 10 (116,475 points)

    Hmmm, cookies!???

    And not mentioned by Apple:

    5- Copied the hidden .my-MAC-Address file from the existing backup drive onto the new one. (To make it match my MacBook’s /var/db/.TimeMachine.Cookie file, and hence make Time Machine on my MacBook oblivious of which backup volume is actually attached to the mini. So: no need to change the backup disk in the Time Machine preferences when swapping the drives.)

    http://rolfje.wordpress.com/2008/09/07/a-bigger-timemachine-without-changing-his tory/

  • 9. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    I'll look at that and hope I will understand what to do (next) - if not, can I get back to you?

  • 10. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    BDAqua,

    Sorry, but you lost me there (which isn't difficult, I admit): what does that linked article (about how to migrate a TimeMachine backup to a larger disk) tell me about what I need to do?

  • 11. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    BDAqua,

    Are you suggesting I should reformat the unrecognised ext HD#2 and then clone ext HD#1?

    I see some problems (apart from whether I'll many to do it at all):

    * I can only attach one HD at a time, as they're both FireWire400 disks and my MacMini only has one FW-port

    * I'm not backing up exactly the same on both ext HDs: onto HD#1 I backup both internal HDs ànd  an ext USB HD (with original pictures and music files); onto HD#2 I backup the same minus the ext USB HD

  • 12. Re: "Change Disk..." in Time Machine stays grey
    BDAqua Level 10 Level 10 (116,475 points)

    Hmmm, I don't think reformatting yet, I was hoping maybe that one hidden .cookie file replacement might do it, you'll need to turn off TM first.

  • 13. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    OK BDAqua, that sounds (perhaps) more manageable to/for me, but do I find this hidden. cookie file and its intended replacement?

    I've got TM switched off and both FW ext HDs at hand.

    PS: apologies for late reply, but I'm most likely in another time-zone than yoo - I live in France.

  • 14. Re: "Change Disk..." in Time Machine stays grey
    strawbale Level 1 Level 1 (0 points)

    PS: And I switched on show hidden files through terminal

    But searching through Finder for .cookie doesn't give any results

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