External HDs/CDs/DVDs won't automatically mount

I did a complete clean install of Mountain Lion the other week and since then whenever I plugin a pen drive, external hard drive or insert a CD/DVD it doesn't mount. It's all working fine but I have to open Disk Utility, choose the disk and then click 'Mount' to have access to it in the Finder. Is this some security setting I'm not aware of or is it a bug?
I searched for this on the discussions but could only find people with defective drives, not this specific problem of having to manually mount each drive/disc.
Anybody got any ideas?
Cheers!

Thanks for the feedback. Don't forget to check the Legend on the right side of this window.

Similar Messages

Disk Image won't automatically mount for Share iPhoto Library

Hey All,
I've just got a new mac and am sharing an iPhoto library between two users. I moved the iPhoto Library Folder to a DMG set it to ignore permissions.
In each account I did the following: Hold down the option (or alt) key and launch iPhoto. From the resulting dialogue, select 'Choose Library' and navigate to the new library location. From that point on, this will be the default library location. Both accounts will have full access to the library, in fact, both accounts will 'own' it.
The problem is that the DMG won't mount automatically mount. I set it up under both user accounts to mount at start up but it won't do it.
Am I doing something wrong?

Are you using fast user switching or logging out and then back in to the second account? It may be that fast user switching doesn't trigger a "startup" scenario in the second account which is necessary for the disk image to mount.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger or later), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 6 and 7 libraries and Tiger and Leopard. Just put the application in the Dock and click on it whenever you want to backup the dB file. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
Note: There's now an Automator backup application for iPhoto 5 that will work with Tiger or Leopard.

CDs/DVDs won't mount

Neither will mount after insertion into drive. In order to mount them, I have to use Disk Utility. I've repaired permissions which didn't affect this at all.
Is this just a dirty drive of some kind of software problem or hardware failure?

Hi holgaguy, it appears you have a Rev A Imac and resetting the SMU will sometimes correct hardware issues. I would try that first if you feel comfortable removing the back of your Imac. Then just read this link, alot of it won't apply to your exact problem but will show you how to reset the SMU. Seen as they will work through disk utilities I would guess the the drives are not pooched. Post back with the result and we can go from there. Bob :~))
http://docs.info.apple.com/article.html?artnum=301283

DVDSP-DVD won't automatically play

I've authored thousands of DVDs using DVDSP and never run across this before. This disc I just authored won't play in the MacPro I used to author it. It'll play in set-top players, it'll play in PCs just fine—and also will play in my Quicksilver G4, but when I slide it into my MacPro, it spins up like it's about to play, but nothing happens. Other DVDs play just fine when I insert them, just not this one or any of the batch I made alongside it. I've checked the DVD Player prefs, and it's set to play a DVD when inserted. The blank media are Maxell DVD -Rs —which I've never really had problems with.
So the question is, is this a problem with the authored DVD, DVD Player or maybe my DVD drive is going out? Any ideas?

This is definitely a strange issue.
My bet is that it's the blank DVD-R media as what you have described sounds just like something one might encounter when working with DVD-Rs.
(Athough, it is very unexpected that the machine that burned them will not read them.)
If you have Toast handy, try using it to burn your DVD buid. As Toast does a verification pass, you will know right away if the data on the disc that was just burned can also be read.
Another thing to try is to copy the VIDEO_TS data to you G4 drive and then burn it back to both the same Maxell media as well as a different brand. Then, see if either of this play on your Mac Pro.
Report back on what you come up with.
-Warren

External Hard Drive Utility Won't Stop Mounting!

I just bought a 1 TB Buffalo Drive Station to use as my Time Machine Backup drive. Plugging it in it came right up as a new volume, but so a second volume also mounted called "Utility_HD-CXU2", which contains Mac and Windows utilities. No problem I thought... I'll just completely reformat the drive, so I went into Disk utility and formatted it as a Mac OS X Journaled drive. It remounted and so did the Utility volume...
Checking a little deeper the main volume is listed as disk2s2, so there must be a hidden partition on the drive that's not letting me get at it and it doesn't appear in disk utility. How can I dump that partition (since I don't need the utilities and it's annoying that it keeps remounting)? Help!
Dave

Hi smike;
I had a simular situation with a hrad drive back when I was still using Norton. Everyone was saying dump and put in a new one. I used Disk Warrior on it. It took forever ( over 16 hours) but Disk Warrior was able to recover it for me.
Immediately after that, I got rid of all things Symantec from my Mac.
Allan

Dmg images won't automatically mount anymore

Yesterday when I downloaded the new Flash 10 dmg file I noticed a strange thing. When I double-click on it it opens Disk Utility instead of mounting with disk utility. Disk Utility just opens and sits there on the screen. You can then choose the dmg and mount it manually from within Disk Utility and manually close it when done. Any ideas? Thanks,
Matt

Try repairing the DMG file in Disk Utility. Drag it into Disk Utility's list of devices, select it and run the repair process.
Try opening the DMG from a new user account and see if it works from there.
And [here's a thread|http://discussions.apple.com/thread.jspa?messageID=8058265&#8058265] that seems relevant.
/p

CD or DVD won't stay mounted

Last night, I was moving some music from a CD to i tunes, when the music started to sort of skip (the CD was pretty scratched so, I didn't give it much thought), then the CD would spin then stop and then spin again like the drive was in some kind of loop.
The CD would not eject until I restarted and now, the drive will not except any CD or DVD. The disks pop out right after I slip them in.
This sounds expensive. Could it be a software thing?
The Mac Mini is about a year old and the drive has worked like a champ up to this point.

Hi franklin99-
Greetings and welcome to the Apple Discussion boards
Some folks have reported success using an optical drive lens cleaning kit.
Luck-
-DaddyPaycheck

Problem: DVD won't loop after burning in iDVD '08

I need help.
I made a slideshow in Keynote '08 and sent it directly to iDVD (iLife'08) for burning. I wanted to burn it to DVD and have it show continuously (loop) at a kiosk.
I selected the presentation and had set iDVD (Advance Menu) to "Loop". The loop icon showed up on the "map menu" for the selected presentation.
As I read in other forums, I also set the "button" for Play Movie with a TRANSITION.
After burning and playing it on two DVD players, the DVD won't automatically loop. It just freezes after it completes one play.
I also did the "REPEAT" button on the DVD Player Remote and still won't loop.
I went back to iDVD and removed the Loop option and burned DVD. I was hoping that I can play it back with just setting the DVD player itself to REPEAT disc. Again, the DVD won't repeat or loop.
I also converted the keynote presentation to quicktime first then moved it to iDVD for conversion and burning to DVD. The results are the same above.
I need to know if there is a step I am missing or a procedure not followed properly.
Thanks in advance!

Check these instructions from iDVD Help to see if you missed anything.
+_Here are ways to turn looping on or off_:+
+Double-click a slideshow button on the DVD menu to open the slideshow editor. Click the Settings button and select the “Loop slideshow” checkbox.+
+Select a slideshow icon in map view, and then press Command-I to open the Slideshow Info window. Select the “Loop Slideshow” checkbox, and then close the window.+
+Click a movie or slideshow button on the DVD menu, or a movie, slideshow, or autoplay movie icon in map view, to select it, and then choose Advanced > Loop Movie or Loop Slideshow.+
+When looping is turned on, a checkmark appears next to the command in the menu. To turn off looping, select it again to remove the checkmark.+
+To turn looping off for a background movie on a menu, open the Menu Info window. With your pointer over the menu (but with no buttons or text items selected), press Command-I. Move the Loop Duration slider to zero.+
If you have followed these directions and are still having the same problem, give this basic remedy a try. Quit iDVD and delete your iDVD preferences. To do this, go to your username> library> preferences> com.apple.idvd.plist. Delete this file. Then reopen iDVD; it will create a new preference file with all of the default settings.
Do a verify and repair of permissions using Disk Utility.
If the problem persists, do the following for troubleshooting purposes. While working on your project in iDVD, create a disk image. Go to File>Save as disk image. This will create a file that can be viewed on your computer's DVD player. You will be able to see just how your project will work when viewed on a regular DVD player. You will be able to catch errors and correct them before burning and possibly wasting a disk. If the disk image plays correctly, then you know that the encoding is being done correctly. This would point to problems with the burn process. If there are problems with the disk image, then the issue is with encoding.
I hope this helps.

CDs, DVDs, disk images won't appear in Sidebar or on Desktop

Hello,
Brand new iMac 2.16, right out of the box.
CDs, DVDs, and Disk Images won't appear on the desktop or in the Sidebar. Nothing is shown over the horizontal gray line at the top of the sidebar, no Macintosh HD, Servers, etc. Disk Images are fully functional, ie Disk Utility recognizes and mounts them just fine.
I checked Mac Help and followed its instructions:
(1) In Finder preferences:Pane:General, all 'Show These Items on the Desktop' boxes are checked.
(2) In Finder preferences:Pane:Sidebar, I checked all boxes under "Show These Items in the Sidebar. BUT these changes are NOT retained. After I close the Preferences, the Sidebar does not change. If I re-open the Sidebar preferences, the relevant boxes are now unchecked, as if I'd never done a thing.
Restarting was the only way to fix the problem. Thereafter, the upper items in the Sidebar (Macintosh HD, external drives, iPod, CDs) sometimes SPONTANEOUSLY disappear. They still show up on the desktop, but tweaking the Sidebar preferences is again ineffective. Restarting is the only solution.
Thank you for your help,
Andy

Hi Andy, Welcome to Apple's Users Help Users Forums.
1] Everything elmac says is helpful and correct.
2] An upgrade to 10.4.8 with the 10.4.8 Combo from blue apple / Mac OS Updates might fix your hiccup. If you don't want .8 then .7 combo.
3] [OT] For some minor security issues, it is better to surf the internet in a standard account. If you are surfing in an admin account then here is how to switch and maintain prefs.
Set up a new account in System Preferences / Accounts / +
and make it have admin priviledges. Be sure to remember short name and password since you will be asked to "authenticate" when running in your standard account. This new account is often called "test" in these forums.
Once that is done convert your regular account to standard.
Good Luck, JP

IMac 2008 OS10.9.1 external dvd won't play movie DVD's

iMac 2008 OS10.9.1 external dvd won't play movie DVD's. Other DVD/CD's are recognized.
My internal DVD/CD p-layer/burner stopped working 3 years ago like many other iMacs did.
Any help would be greatly appreciated. This is all red because I am ******!

I have discovered, no thanks to Samsung techs, what the problem is, and it might be revealing for others, as well. It seems that DVD Player, which is the app Apple provides in OS x for (naturally) playing videos, doesn't work with external drives if the computer has an internal drive – even when, as in my case, the internal drive is dead.
I have learned, however, of the existence of a couple of alternative, free applications that run video and audio disks with external optical drives, and one of them, at least (VLC), seems to be widely acclaimed. Does anyone know whether bypassing DVD Player could be a bad idea? There were some gripes from one or two reviewers about awkwardness with playing audio DVDs with iTunes, but I'm not sure what they meant when they said that you have to click on individual items in a selection. Would that mean, for example, having to click on each movement of a Mozart trio? That I couldn't play an entire album's contents of another kind of music without clicking on each song?
Getting the internal optical drive replaced would be prohibitive, even if the parts could be obtained, so I guess I'm stuck trying to deal with the external drive I have and finding the best replacement for DVD Player that I can find. The interesting thing is that the drive works beautifully with a MacBook Air I tried it with, so I guess that is because the Air doesn't have an internal drive?
Wouldn't you think that Samsung techs would know all this? The one I spoke to told me to make sure that my system preference for CDs and DVDs was set to open automatically with DVD Player and sent me all kinds of FAQs, plus a way to get an RMA number for a return. Not a word about difficulties with Macs having an existing internal drive. And all after spending a very long time talking with me about what was going on, what the error message was, and so on. I guess the message hasn't gotten to them.
I hope this information will be helpful to someone.

DVDs won't mount - discs ejecting

(Inadvertently posted to aluminum forum -- this belongs here.)
Searched and did not find exactly this problem in prior posts.
CDs still mount and play fine, but now all DVDs won't mount and are automatically ejected. I've looked previously at region settings, decided not to change, now can't even find region settings to verify I'm still set to 1. I don't really think it's a region problem though, as I'm pretty sure I didn't even try to change regions.
Any suggestions? Thanks.

Not quite sure what's wrong here, but let's see what System Profiler (Applications>Utilities) has to say about your drive.
Open up System Profiler, then click "Disc burning" in the left-hand column. Next to "Reads DVD" what does it say?
~Lyssa

Can't install Snow Leopard on MacBook Pro - DVD won't mount

I am unable to install Snow Leopard on my MacBook Pro as the DVD won't mount. This is an early 2008 vintage MacBook Pro, intel core duo...
I'm using a OS X Snow Leopard install DVD (family licensed). This DVD has been used to install 3 other Macs in my house without a problem (about a year ago), but cannot be used to upgrade my MBP. Actually, this disk mounted on the MBP exactly once - inserted with system up, the disk mounted. Upon running the installed (a year ago), the computer restarted but hung in boot. After getting the disk ejected and the computer restarted, the disk would never mount again. I've defered upgrade for a year but at this point need to upgrade my MBP at least to Snow Leopard and possibly Lion.
The problem doesn't seem to be with the DVD, since it continues to mount fine in other computers, and in fact a borrowed Snow Leopard DVD also will not mount on the MBP.
BUT ... the problem also does not seem to be with the optical drive in my computer, as it can read & mount the install/restore disks that came with the computer as well as other CDs and DVD ROMs. Only the Snow Leopard install DVDs fail to mount.
I've also tried mounting the 10.6 install DVD on my Mac Pro desktop, making it available over the network (ethernet) with DVD/CD sharing. I can mount the remote disk from my MBP that way, but when I launch the installer, the application launches (its own menus are displayed, I can quit from menu, for example) but does nothing -- no windows open, nothing.
I've also tried "Remote Install" (again with the DVD made available with the Remote Install MacOS X application on my desktop), but when I boot the MBP with option held down, the remote disk is not available as a startup disk.
Zapping the PRAM did not help.
Am off to the store to get an optical drive cleaning kit and a blank DVD big enough to burn a new disk image, but would appreciate any further ideas at this point....

Solution that worked: Copy the Install DVD to a USB flash drive and boot from that.
http://www.maciverse.com/install-os-x-snow-leopard-from-usb-flash-drive.html
Up and running with Snow Leopard now and working on the updates.

DVDs won't mount

This is asked repeatedly in the hardware forum, but never answered, so I'll try here.
I am no longer a happy camper.
Some DVDs do mount, some don't. There is no rhyme or reason to it. I can purchase a complete box set of "The Complete Five Seasons of __________", and some will mount, some will not. Same with rental DVDs, or DVDs I've burned myself on my iMac. All the commercial DVDs, and most of the DVDs I burned myself, work fine on my cheapo set-top t.v. DVD player.
Doesn't matter if they are brand new commercial DVDs, or if I clean the rented DVDs. So luck repairing permissions, running CacheOutX, Onyx, DiscWarrior, shutting down for 15 minutes, or anything else. Nor do the DVD lens cleaners help -- most of the time they won't even mount.
Any ideas?
Are there any external DVD players that I could plug into my iMac via Firewire?

You are posting in the wrong forum. This forum is about iDVD the application from Apple. This forum is NOT about general DVD issues and questions.
Try searching for the forum for your specific computer. Most of the computer forums have a DVD/Optical Drive forum where your question would be more appriate.
Patrick

DVDs won't mount after Security Update 2006-004

DVDs won't mount after installing Security Update 2006-004 via the Software Updater in OS 10.3.9. CDs work OK.
I've repaired permissions, reset PRAM, tried booting in OS 9.2.2 but can't get the DVDs to mount/play or be seen by disk utility.
Please help.
iMac 400mhz
Original Matshita DVD-ROM SR-8184
iMac Firmware 4.1.9
Thanks

How recently before installing the Security Update did you use the DVD drive (for DVDs)? If it was not immediately before the update, the two are probably not related. Also, if you restarted in Mac OS 9 and the DVD drive still does not work, it would seem to indicate the problem is hardware, not software.
You can try opening up the iMac and checking the connections to the DVD drive. Also, it is possible that your PRAM battery is dying (unless you have replaced it recently); that can cause unexpected problems.

Cd/dvd rom reads cds but won't read dvds

I have a pbG4 titanium (M5884) with a MATSHITADVD-ROM (SR-8187) and am running 10.3.9. I can play cds fine, but when I attempt to insert a dvd, sometimes I hear something and it spits the dvd back out. Other times, it just holds the dvd and doesn't mount on my desktop. Is there any update that I need to install? I am trying to upgrade to 10.4 but my upgrade is on a dvd. Anyone have any ideas?

Hi,
It could mean your drive has come to the end of the rainbow and needs to be replaced. However, you could try running a DVD cleaning disc in the drive.
Is it only the install disc that won't mount? Have you tried a movie DVD? Check the install DVD to see if it is dirty or scratched.

External HDs/CDs/DVDs won't automatically mount

Similar Messages

Maybe you are looking for