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View Full Version : General Lagginess After Installing 10.6 Over 10.7. Help!




AlphaDogg
Mar 12, 2011, 09:49 PM
I was sick of all the bugs in 10.7, so I went back to 10.6.3. I was on a bike ride, so I called my dad (with my iPhone/headphones with mic, yes I was safe) to run all the updates for me. He was not able to enter my password correctly, so I had him boot off of the install disc and change the password. I was screaming at him what my password is, and everyone on the trail heard my password lol. I then had him run all the updates. I just got home to my MBP, and I am noticing it is pretty slow and laggy. Are there any plists or anything that I have to delete that got left over from the 10.7 installation?

I am still getting used to the reversed reversed scrolling, if that makes any sense... I got sooo used to the new scrolling on 10.7 and now it is difficult for me to scroll...

Anyone who is interested: I was on the Cherry Creek trail in Denver. It took me to the Cherry Creek mall, where I saw and played with the new iPad.



AlphaDogg
Mar 12, 2011, 10:03 PM
I am also having issues with Mail.app. It has these weird threaded views of emails and when I try to look at an image that I sent myself from my iPhone, it says "missing plugin." This is a problem.

HawaiiMacAddict
Mar 12, 2011, 10:11 PM
When you boot off an install DVD, once you select the installation language, you should be able to select Disk Utility and erase the HDD from there. Once it's been erased you should be able to install Snowy just fine. Of course, I don't have the issues you have with Lion, and am not sure whether this process works from a newer OS to an older OS (I've only done this when upgrading, not downgrading), but give that a try. That way, you're installing Snowy on a clean partition, more probably the best thing for you at this point anyway.

AlphaDogg
Mar 12, 2011, 10:19 PM
When you boot off an install DVD, once you select the installation language, you should be able to select Disk Utility and erase the HDD from there. Once it's been erased you should be able to install Snowy just fine. Of course, I don't have the issues you have with Lion, and am not sure whether this process works from a newer OS to an older OS (I've only done this when upgrading, not downgrading), but give that a try. That way, you're installing Snowy on a clean partition, more probably the best thing for you at this point anyway.

I know how to do a clean install. The thing is that I can't do a clean install. I don't have a backup of my data (stupid, I know) because my back up HDD died. My data is very important. What plists should I delete? Do I delete them from my user account library or the main directory (HDD) library? HELP

xUKHCx
Mar 12, 2011, 10:23 PM
When you say installing 10.6 over 10.7 how did you do this?

Surely you have a back up of you 10.6 system prior to updating to 10.7, if not why not?

And I'm not surprise it isn't great because you are doing something unsupported anyway but also on a developer preview rather than the finalised version. Who knows what parts of the system (with their bugs) are around and used and also newer apps like mail may have changed some background behaviour which the older version doesn't support/know about.

I'd also put some consideration into what you are showing in your screenshots. You don't need to show us the whole window with your personal information in (or your friends personal information).

AlphaDogg
Mar 12, 2011, 10:25 PM
When you say installing 10.6 over 10.7 how did you do this?

Surely you have a back up of you 10.6 system prior to updating to 10.7, if not why not?

And I'm not surprise it isn't great because you are doing something unsupported anyway but also on a developer preview rather than the finalised version. Who knows what parts of the system (with their bugs) are around and used and also newer apps like mail may have changed some background behaviour which the older version doesn't support/know about.

I'd also put some consideration into what you are showing in your screenshots. You don't need to show us the whole window with your personal information in (or your friends personal information).

Nope, no backup of the system previous to 10.7. I didn't have time to edit out the personal info, because I was kind of panicking. I will do that now.

AlphaDogg
Mar 12, 2011, 11:12 PM
Okay. It sees the only way to get rid of my issues is to do a clean install of OS X. What do I need to save to have my computer (mostly) as it was? My user folder and my Applications folder? Anything else?

AlphaDogg
Mar 12, 2011, 11:33 PM
Would my issues go away (as a "quick fix") if I just put 10.7 back on it? I forgot to mention that I am having issues with Java....

http://forums.macrumors.com/attachment.php?attachmentid=275729&d=1299994431

http://forums.macrumors.com/attachment.php?attachmentid=275730&d=1299994583

AlphaDogg
Mar 13, 2011, 12:40 AM
I installed 10.7 over 10.6.6 and it is fine. I tried to launch a Java-based application on 10.7 just now, and it made me open software update and install Java (I guess its a special version for 10.7, because it said it was installing Java 1.6 or something for 10.7). Now I don't have any issues. Mail is fine. Java is fine. I guess I am just keeping it on 10.7 forever, even until the final release of it.

misee
Mar 13, 2011, 01:19 AM
Okay. It sees the only way to get rid of my issues is to do a clean install of OS X. What do I need to save to have my computer (mostly) as it was? My user folder and my Applications folder? Anything else?
Depending on what you installed, there might be some files from /Library that you want to copy. This directory is similar to the one in your home folder, but is system global.

However, I would recommend you install a clean system. Install any applications that are not shipped with OS X again (yes, I am a bit paranoid - but it ensures that everything should work fine afterwards. Of course, you can spend hours browsing through your /Library directory and find folders and files that belong to applications installed by you and then copy them as well).

Also, in the Library folder that is located in your home directory, you should consider removing files that are used by the apps installed with OS X - that's probably why you are having problems with Mail.

Anyway, if you want to keep all the apps you installed so far without searching and installing them again, following might work:

Back up "/Users/<your_user_folder>", "/Applications" and "/Library" to an external hard disk, DVD or whatever you like.
Delete the volume you are installing on (you probably have to do this anyway to downgrade)
Copy your backed up applications to the Applications folder (don't overwrite the apps that were installed with Snow Leopard and avoid copying anything that came with Lion but is not shipped with SL)
Make a copy of "/Library" and "/Users/<your_user_name>/Library"
Replace "/Users/<your_user_folder>", and "/Library" with the ones you backed up with Lion. There might be some files in "/Library" and "/Users/<your_user_name>/Library" that can cause problems (I don't know if there are any though. If there are, you should be safe to assume that they are files that were altered by apps that ship with Lion and have a different version number than their Snow Leopard predecessors - one being Mail as xUKHCx already mentioned).
Pray that everything works (optional). If that doesn't work, start replacing files that you think could cause the problem with the files you backed up in step 4.


However, I really do recommend you erase the entire HDD and make a nice and clean install. Just copy your documents (don't copy the Library directory in your home directory) to another HDD/Memory Stick (or whatever you want to), and then copy them back to the appropriate folders after installing SL. It might suck to install all the apps again, but it's probably the best solution.

The next time you install a pre-release version of Lion, you should consider installing it on it's own partition (or even better, a different computer if you have one). That way, you will have a system you know that works and one for playing around (or to prepare your app for 10.7 if you're a developer). Installing pre-release versions of an operating system over your main working system is usually a bad idea, even if you backed your system up. (sorry, just had to say it)

Cha Cha Desmond
Mar 13, 2011, 04:22 AM
Wise words of advice...

Definitely do NOT try to install apps using the migration assistant. That's where your mail and Java errors are coming in - it'll try and move Lion apps onto Snow Leopard which results in bad things.

I see you've decided to stay on 10.7. Might be for the best if you don't fancy digging for loads of install disks!