I cannot install dmg file applications to my ibook

Gud day guys ! I'm having trouble installing dmg applications on my ibook ie. yahoo messenger, firefox browser even safari 3

To add to Advanced User and Roam's always sound advice ...
Whenever you download and install software, make sure your Mac meets the minimum requirements. For instance, I just checked Yahoo Messenger, here are the min requirements: System requirements: 10.4 (Tiger) or 10.5 (Leopard), Intel or PowerPC. So if you are running Panther, 10.3, then the Yahoo Messenger .dmg file won't allow you to install the software.
Firefox: System Requirements
Mac OS X 10.4 or later
256MB of RAM or higher recommended
200MB hard disk space
Safari 3.1.2 requires Tiger 10.4.11
Carolyn
Message was edited by: Carolyn Samit

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I continue to receive "failed to mount" when trying to install .dmg files or updates. Has anyone found an answer to this problem? I am operating on Mac OS X 10.4.11

I continue to receive "failed to mount" when trying to install .dmg files or updates. Has anyone found an answer to this problem? I am operating on Mac OS X 10.4.11

10.4.11 was only available as a PowerPC updater application (both as a Combo and as a Delta) to Macs with 10.4 or later that were PowerPC. If you don't have 10.4 installed on your Mac, see this tip:
https://discussions.apple.com/docs/DOC-2541

Cannot open dmg files in mavericks

After installing Mavericks on my iMac I cannot open dmg-files. All that happens is that the system tells me "The following disk images couldn't be opened", with the reason "no mountable file systems".
Now, all I can find when discussing this issue is that "your download is corrupted" or "check your disk" or "reinstall Mavericks!". I have checked and rechecked the files, they are complete and should work. My disk is checked and I have reinstalled Mavericks but nothing happens.
It seems to be a fairly new/rare problem, I can't find any discussion on this problem elsewhere...

I'm having the same problem. I don't have any answers. But here's some information about what I'm seeing that might help someone sort this out.
I recently upgraded to Mavericks
Both newly downloaded dmg files and ones that were downloaded and sucessfully opened under a previous version of OS X cannot be opened now
I have two user accounts on the same machine. On one I can open dmgs without problem. On the other I get the error.
I'm using the same browser (chrome) on both accounts to download the same disk image, with different results.
Both accounts are admin accounts
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Cannot open DMG files

Hello. I cannot open DMG files. I have had the problem with a download of Adobe Photoshop and the Combo Update for Mac OS 10.4.10. I have re-downloaded both files.
(When I download, I am getting two separate files for each, one dmg, and one dmg.part, which the OS seems to think is a quicktime movie file. Is this normal? I don't remember.) Anyway, this is the error:
The following disk images failed to mount; name of file, not recognized.
I have tried most of the fixes found on the site, and none of them have worked for me. Here is a short run down of what I have tried:
Running Disk Permissions Repair
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Opening from Stuffit
Opening from Disk Utilities
Opening from Mount (downloaded from Internet)
I thought that I read that downloading the Combo Install would fix the problem with the Disk Mount, but I cannot open that either.
What should I do?
I appreciate any help!

the different type of file shttp://www.adobe.com/support/downloads/product.jsp?product=39&platform=Macintosh

I cannot open dmg files with Yosemite

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Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Download and reinstall the 10.10.1 update.
Also see:
Reinstall OS X Without Erasing the Drive
OS X Yosemite- Reinstall OS X
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Windows 10 Error code: 0x80070570 at 68% "windows cannot install required files"

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i7-2600k 3.4GHz
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"Windows cannot install required files. The file may be corrupt or missing. Make Sure all files required for installation are available, and restart the installation.
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Hi Covered,
Glad that you have resolved this issue.
Have a nice day!
Regards,
Alex Zhao
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'Windows cannot install required files' error while installing Vista SP1

I'm installing Vista Client SP1 on my Macbook pro and getting the following error:
Windows cannot install required files. Make sure all files required for installation are available, and restart the installation.
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Did you get far enough to delete the FAT partition BootCamp created, so you could create a new NTFS one?
http://support.microsoft.com/kb/933925
or this:
http://discussions.apple.com/thread.jspa?threadID=1464025&tstart=0

Errors "A media driver your computer needs is missing." or "Windows cannot install required files" upon attempting to install Windows 10 TP build 10041 64-bit

I'm attempting to install Windows 10 TP build 10041 [64-bit]
I am currently being prevented from installing by a "A media driver your computer needs is missing." error, which occurs fairly early in the process. I've interpreted further text in the message as a suggestion that it's a DVD, USB or some other
similar driver issue. However, as I've been able to attempt each install through booting from DVD and USB, I'm not convinced this is the issue.
I'm currently installing to a 128Gb SSD drive. I have installed Windows 10 TP on my laptop's SSD with no issues.
On a few occasions the installation has continue with the installation, and then failed at about 6% with the following error:
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I did not have this issue when installing build 9841, so am currently assuming this is an issue with build 10041.
Apologies if this query has been posed before, a search did not show up this issue.
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Hi Michael,
Thanks for trying to assist!
I attempted removing/deleting partitions and formatting the SSD as part of the install process. I have also tried installing via USB and DVD with the same issues.
As part of the troubleshooting, I attempted to install a different OS. I was able to successfully install Linux Mint 17.1 with no issues. This further solidifies my impression this is an issue with Windows.
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: I have recently purchased a iBook G4 Mac OS X VERSION 10.5.6 and I cannot install any apps such as firefox, adobe reader, it reads you cannot install this file on this disk

: I have recently purchased a iBook G4 Mac OS X VERSION 10.5.6 and I cannot install any apps such as firefox, adobe reader, it reads you cannot install this file on this disk

Are you saying the iBook G4 you have is running OS X 10.5.6?
The next file to get for it would be the Combo update 10.5.8 for Leopard.
And any old archived Flash player for 10.5.8 from Adobe flash site.
A browser such as TenFourFox, iCab, SeaMonkey-PPC, these are OK
but you won't be able to go past Leopard 10.5(.8) in a PowerPC Mac.
All these are free bits, however anything past 10.5.8 Mac OS X
would require a newer Mac with Intel-based architecture. Macs
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Hello customer,
First I check the compatibility in Windows 7 Compatibility Center website. Except for the Age Of Empires III Gold Edition, most editions of this games should be working well in Windows 7.
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I can download .dmg files from other sites on my mac (eg. Intego) without problems.
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I have now found that the problem is with:
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Hi ,
i cannot find my password protected .dmg file .
Earlier i would just type in the name of the dmg file in spotlight and access it but today its just not there !
Please help as i had really important data in it.
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Suviraj Singh.

Download from the Internet 'Easyfind". Some times it will work when Spotlight does not.
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Install DMG file using a UNIX command

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I watched the tutorial videos and according to them it is possible.
Anyone have any hints?

If you're copying the DMG to the client workstation and opening it, you probably then will need to take control of the workstation and run the installer from there. Most such installers require some manual intervention and so can't be run from a command line.
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Can't mount dmg files, Applications button in sidebar automatically closes Finder, and Flash won't work in browsers

Although these problems don't seem to be related, they all started occurring at the exact same time. To reiterate
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Have you repaired the Disk. You must boot into the Recovery HD to repair the disk. See http://support.apple.com/kb/HT4718 and http://support.apple.com/kb/HT1782

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I cannot install dmg file applications to my ibook

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