What to do with dmg files

Do I have to keep all dmg files on my computer or can I delete them or store put them on a disc for storage?

You can keep, delete, or store them as desired; once the software is on the hard disk, the dmg is only needed if you want to reinstall it or uninstall it in some cases.
(38534)

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What to do with .dmg files after downloading

I am somewhat new to OS X (however not new to Mac), so this may seem like a dumb question...
After I download an application, plug-in whatever, I have a .dmg file and another icon that looks like a hard drive on my desktop. I know that these are the installer files, but what do I do with them after I install something?
I have been "ejecting" the one that looks like a hard drive, and the other with the .dmg extention I've put in the trash. I put the applications I downloaded and other misc. like the "read me" files together in a folder in the Applications part of the finder.
Is this right? I feel so silly for asking...
Thank You,
akhock
iMac Intel Mac OS X (10.4.7)

Hi
You're doing it right, however: Depending on the application I find it unnecessary to put non-essential files in the Application folder. It is often enough just to put the actual app in the Apps folder. If you archive the .dmg file in a downloads/installers folder in your Home folder, as I do, then you can always access the other misc. files again if ever necessary. It's neater that way, and when the latter folder becomes large I just burn it to disc, file it away somewhere and empty the folder to clear space.
Matthew Whiting

How to save applications and what to do with .dmg file

To be honest I think that it is much easier to download apps on windows, but maybe i'm just not doing something right here. It seems that every time I download an app I get a number of files that I don't know what to do with. I get the .dmg file that I save to my desktop and then there is the app icon, and then there is that little white rectangular box that shows up on the desktop when I am using it. It's like it's treating the app as hardware or something that can be ejected. Before I now it my desktop is cluttered with a bunch of these white boxes, app icons, and .dmg files. Anyone have any instructions as to how to manage my apps? Can I delete the .dmg file once i've installed the app? If not, where should I save it? What do I drag to Applications in the finder? the app icon, the white rectangular box, the .dmg file? Anyone know what i'm talking about? I just want to be able to go to my applications file, find the app icon and open it without having to worry about anything else showing up on my desktop. Thanks.

OK, the .dmg is a disc image. When this is mounted you get 'that little white rectangular box'.
When you open the mounted disc (that little white rectangular box) you will find all the files and .app application that you wanted. Copy these to your applications folder or anywhere else you want to put them then simply move 'that little white rectangular box' and .dmg to the trash. Job done.
Hope this makes sense
Bruce

What to do with dmg files after use

I've been keeping dmg files in the Shared user folder after downloading the application. I guess I was thinking this was because I didn't have an actual disk in case I needed to reinstall. Now I'm getting a new iMac and want to set it up right. Is it OK to do this? Or should I copy the dmg file onto a CD?
Thanks!

a brody wrote: No. But there is also a data loss bug that affects 10.6 and 10.6.1 when it comes to using it with Snow Leopard and PowerPC. I'd rather not venture that path if I don't have to.
Been trying to find out about that. Searching around for "data Loss bug," saw some items related to "Guest account bug," but can't find anything connected to using PPC with Intel. Can you possibly provide a link where I might read more about that?
And curious to know if you know if this specific bug, which would, seemingly, have potentially affected all users, was fixed with 10.6.2 or 10.6.3?
from Wikipedia Article: A bug in Mac OS X versions 10.6 and 10.6.1 which, in rare cases, caused loss of user account data after use of a previously-existing guest account by users ...
If it was only 10.6. to 10.6.1, even if it is PPC-Intel related, +and if it's been fixed+ , don't see why it would apply to someone Migrating to a new computer, which would almost certainly ship with, at least, 10.6.2 and maybe 3.
Message was edited by: WZZZ

Problems with *dmg files

hi...
i can't install programs... i've changed once a *dmg extension... and now i just can't open to install aplications.
can anyone tell me what aplication opens a *dmg file or how i can i do to fix my problem...
thanks

enlarge on what you say about your problem please: are these files actually .DMG Disk image files ? If they are not, then, as our friend says you are doing the wrong thing: what are they? where did they come from ? how big are they ? etc...
OR do you mean you simply changed 'open with' once time with a DMG file.
best

When logging on to Hotmail, a window opens asking me "What to do with this file" for "default.aspx"

This morning, I am unable to log in to Hotmail. The homepage appears normally, but after I enter my email address and password and click to submit them, a window pops us asking me what to do with the file "default.aspx." I have a Vista machine, and last night my computer automatically installed a ton of Microsoft updates. In fact, the update list shows that one of the updates failed to install. At the end of this message, I have pasted the details of the failed update. I have checked the Hotmail support forum, and someone else posted that the have experienced the same problem this morning. The Microsoft "expert" asked him or her to contact Mozilla for support for this issue. Thanks in advance for whatever help you can provide, although I highly suspect that this is a problem on the Microsoft/Hotmail end, not yours.
Here is the info on the failed software update from last night...
Security Update for .NET Framework 3.5 SP1, Windows Vista SP2, and Windows Server 2008 SP2 x86 (KB2478660)
Installation date: ‎6/‎16/‎2011 12:01 AM
Installation status: Failed
Error details: Code 80242006
Update type: Important
A security issue has been identified that could allow an attacker to compromise your Windows-based system that is running the Microsoft .NET Framework and gain complete control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
More information:
http://go.microsoft.com/fwlink/?LinkID=211422
Help and Support:
http://support.microsoft.com

Hotmail is rolling out a server change at their end which might be causing this problem. Mozilla has spoken to them about it and they are trying to fix it. I won't be able to provide you a time estimate by when it will be solved but hotmail/mozilla is certainly looking at this issue.
I will let you know if get any updates!

Upgrade Macbook from 10.4 to Lion with .dmg files

I have an old Macbook running OSX 10.4.11 that I would like to upgrade to OSX 10.7 (Lion).
Can I do this whole process (upgrade to 10.5, then 10.6, then 10.7) using .dmg files created from install CDs? I don't have a working CD drive, but I have a friend with .dmg files of all the retail install CDs.
Can I skip 10.5? I know I need 10.6 before I can go to 10.7.

well if your Mac meets the requirements, it's also possible, to install it from a USB stick directly wihtout the previous OS X versions...
I had Snow Leopard on my MBP and I deinstalled it completly and just installed Lion without installing Snow Leopard before and it works...
If you have the Lion installation app, you have to look for the InstallESD.dmg (folder SharedSupport)..
This dmg file you need for the USB stick or for a DVD...
Below is a link, which descirbes the procedure (in German):
http://www.netzwelt.de/news/87602-anleitung-bootfaehige-dvd-mac-os-x-lion-erstel len.html

What to do with .m2v file?

I want to burn this .m2v file that compressor output but when I go to put it into DVD Studio pro it says that "one of the volumes is still in use." This whole process is really really frustrating I just want to make a DVD. Please work!

A .dmg file is an image file. If you open it a new "drive" will appear on your desktop with the files the image file contains. Applications commonly come this way and you drag the application to your applications folder, or maybe you run an installer from the image drive. I am guessing that what is happening to you is the dmg file is appearing and then automatically (probably some setting on your browser) opening so you are also seeing the drive. The drive doesn't actually contain anything so you can drag it to the trash when you are done with it. It's the dmg file that contains the original files and once you have dragged those from the drive to your folder you will have made a copy by doing so and you can get rid of the dmg file too.

What to do with CER file?

Hello all.
This is my first time working with security in Java and I am completely lost.
Here is my situation:
1) I have a P12 file given to me by a vendor
2) I imported the P12 file into InternetExplorer
3) I exported the certificate from IE to a DER "cer" file
4) I use KeyTool to import it.
No matter what I do I do not seem to be able to get this to work....
Where I am confused especially, is what to do with the CER file that I got from the vendor. I thought once I exported it I could import it in using the keytool but that doesn't see to work.
I'm basically lost and need some direction. Any help or pointers would be appreciated.
BTW: Please excuse the code i keep trying different things.
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.security.KeyStore;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;
import java.net.*;
import javax.net.ssl.*;
import java.io.*;
public class TestLiveConnection extends junit.framework.TestCase
    private static String host     = "someUrl";
    private static int    port     = 3018;
    private static String cert     = "c:\\myStore.jks";
    private static String ctype    = "JKS";
    private static String cpass    = "xxx";
    private static String trust    = "c:\\myStore.jks";
    private static String ttype    = "JKS";
    private static String tpass    = "xxx";
    private static String protocol = "SSLv3";
     * Tests the ability to establish an SSL connection.
    public void test_SSLConnection()
        System.out.println("------ POST using URL ------------");
        String tu4i = "someRequest";
        //System.setProperty("javax.net.debug", "all");
        System.setProperty("javax.net.ssl.trustStore", trust);
        System.setProperty("javax.net.ssl.trustStorePassword", tpass);
        System.setProperty("javax.net.ssl.keyStore", cert);
        System.setProperty("javax.net.ssl.keyStorePassword", cpass);
        SSLContext ctx;
        SSLSocketFactory factory = null;
        KeyManagerFactory kmf;
        TrustManagerFactory tmf;
        KeyStore tks;
        KeyStore kks;
        try
            char[] tphrase = tpass.toCharArray();
            char[] cphrase = cpass.toCharArray();
            kmf = KeyManagerFactory.getInstance("SunX509");
            kks = KeyStore.getInstance(ctype);
            kks.load(new FileInputStream(cert), cphrase);
            kmf.init(kks, cphrase);
            tmf = TrustManagerFactory.getInstance("SunX509");
            tks = KeyStore.getInstance(ttype);
            tks.load(new FileInputStream(trust), tphrase);
            tmf.init(tks);
            ctx = SSLContext.getInstance(protocol);
            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
            factory = ctx.getSocketFactory();
            SSLSocket socket = (SSLSocket)factory.createSocket("someUrl", 3018);
            socket.setEnabledProtocols(new String[] { "SSLv3" });
            this.transmit(socket, tu4i);
        catch (Exception e)
            System.out.println("Exception: " + e.getMessage());
        /*------------- Try using HTTPS Connection --------------------
        System.out.println("---------------------- Use HTTPS Connection");
        try
            HttpsURLConnection.setDefaultSSLSocketFactory(factory);
            URL theURL = new URL("https://someurl:3018");
            HttpsURLConnection tuCredit = (HttpsURLConnection)theURL.openConnection();
            tuCredit.setSSLSocketFactory(factory);
            tuCredit.setDoOutput(true);
            PrintWriter pwOut = new PrintWriter(tuCredit.getOutputStream());
            pwOut.println(tu4i);
            pwOut.close();
            if (pwOut.checkError()) System.out.println("SSLSocketClient: java.io.PrintWriter error");
            // read response
            String inputLine;
            InputStream is = tuCredit.getInputStream();
            BufferedReader in = new BufferedReader(new InputStreamReader(is));
            while ((inputLine = in.readLine()) != null)
                System.out.println(inputLine);
            pwOut.close();
        catch (Exception e)
            System.out.println("IOException: " + e.getMessage());
            e.printStackTrace();
    private String transmit(Socket socket, String request) throws IOException
        String response = null;
        PrintWriter out = null;
        BufferedReader in = null;
        try
            //Open a new Output Stream at the socket
            out = new PrintWriter(socket.getOutputStream(), true);
            //Open a new Input Stream
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            System.out.println("    " + request.length() + " -> " + request);
            out.write("GET /?ping HTTP/1.1\r\n");
            out.write("Host: someUrl:3018\r\n");
            out.write("Agent: Test\r\n");
            out.write("\r\n");
            out.flush();
            response = in.readLine();
            //save it in the log file
            System.out.println("    " + response.length() + " <- " + response);
        finally
            out.close();
            in.close();
            out = null;
            in = null;
        return (response);
}

A .dmg file is an image file. If you open it a new "drive" will appear on your desktop with the files the image file contains. Applications commonly come this way and you drag the application to your applications folder, or maybe you run an installer from the image drive. I am guessing that what is happening to you is the dmg file is appearing and then automatically (probably some setting on your browser) opening so you are also seeing the drive. The drive doesn't actually contain anything so you can drag it to the trash when you are done with it. It's the dmg file that contains the original files and once you have dragged those from the drive to your folder you will have made a copy by doing so and you can get rid of the dmg file too.

Dowloading applications - what to do with the files?

Hi,
I have downloaded MSN messenger for my new Macbook Pro. I have made a folder called Downloads under my user in which I save the dmg file. When I open this and installation starts I get another messenger file on my desktop.
If I then try and close messenger after installation and delete this file, messenger won't work. I want a clean desktop. When I downloaded firefox, I simply threw away the same kind of file and firefox still works great.
What do I do with this file/icon, after I have installed a program and dragged it to the dock?
Thanks a bunch.

4144
What you did is just create a shortcut to the image that was on your desktop.
-- Do not drag the expanded image icon itself
(nor of course the compressed .dmg or .zip):
It's an application that you have to put in the Applications folder.
Where is the application,
step by step:
- download your compressed .dmg
- double-click it: it expands as a white icon containing an application and some ReadMe files or link to the author's website
- read the ReadMe file, so you can learn how to install/uninstall your application
- this expanded file acts like a CD or an external drive: its icon looks like a drive icon
- (usually,) drag the application from within this "CD-ish", "drivish" folder, to your Applications folder on your Mac.
- now you can eject the expanded white icon, just like when you eject a CD or an external drive.
The application is now copied in the Applications folder.
--> Now that the application is in your Applications folder, you can create its Dock shortcut, you can create an alias of it if you wish, etc.
Axl

Firefox repeatedly asks me what to do with PDF files, even after I tell it to use Adobe Reader to open them.

For some reason, Firefox repeatedly asks me what to do with certain PDF files (but not all) even after I have indicated that I want it to use Adobe Reader X to open them and checked the "always use this application" box. I have gone through all of the troubleshooting steps on the Firefox support website to no avail. However, unlike what is shown in the troubleshooting section, when I go into Tools/Applications/Preferences, I do not see a listing for "Adobe Acrobat Document." Instead, there is a listing for "pdf file," which opens with "Adobe Reader"--no "(default)" or "(in Firefox)" appended.

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox > Preferences > Privacy > Cookies: "Show Cookies"
See also:
*http://kb.mozillazine.org/File_types_and_download_actions

On the imdb site, ff asks what to do with a file which is a text/html

when I try to open a link, a window appears instead that says :
"Opening".
"You have chosen to open which is a text/html vksji7zemtoiwiug=
from http://www.imdb.com
What should Firefox do with this file? etc

* "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
* "Remove the Cookies" from sites that cause problems: Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

What iCloud does with my files??

On settings it says if I want to storage my files of anothers apps, Garageband for example. But, Where are they???? This really **cks.

Thanks for your quickly response!
This is what I follow:
Settings/iCloud/Storage & Backup/Manage Storage/MyIphone/
and it says: "Choose the data you want to backup", Garageband, iBooks, iMovie and a couple more are there. Why and what happend with those files? It is just a backup but with no acces? I think that is.
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Disk Utility burn error with dmg file

I'm using a Pioneer DVR 106D to burn a dmg file on to a blank DVD. I've done it many times before with the disk utility.
But now I'm getting this message when I try to burn the dmg or make a new image off the old DVD master:
"Device drained its buffer without burn underrun protection"
Can anyone please tell me how I can fix this problem?
Thanks
OS 10.3.9

I have encountered the same problem. I have a Mac Book Pro from 2007, and it has gone through 3 DVD writers so far, all of which have ruined DVD+R DL disks. I have occasionally been able to burn one, but usually during verify, I get this error message:
Communication to the disk drive failed: 0x8002022
And disk utility fails with a "Invalid B-tree node size" error
Oddly, when I try to burn a disk near capacity (6.5Gb or more) it is more likely to fail than if I burn a smaller disk.
I've been using Memorex DVD+R DL disks, but I have used other brands in the past but they have failed, too. Out of about 50 disks so far, I have had success with about 5.

Tiger does not know what to do with some files

I have lots of old files that do not have extensions so Tiger does not know what to do with them, Get info displays the files as Unix Executable Files. Is there anything I can do to figure out what the files really are?

Open the Terminal in the /Applications/Utilities/ folder, type in the following:
file
followed by a space, and then drag the items into it. The Terminal will then make an attempt to determine what format each file's content is.
(23203)

What to do with dmg files

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