Is a fresh install possible?

I'm thinking of getting snow leopard and I wanted to know if it's possible to do a fresh install, IE: reformat the drive, and install SL on a clean hard drive. I know I would lose whatever programs and files i don't back up but I just feel more comfortable installing a new OS this way

If you do an upgrade installation of Sno, then all your apps will be in place after your install, except that any incompatible apps will be archived in the Incompatible Applications folder.
If you decide on an erase and install, then you can bootably clone your internal drive volume to an external drive partition. At the end of your erase and install, you can migrate your apps to your new installation from the clone. You can accomplish the same thing if you use TM. In deciding which method to use, you may want to consider the discussion below.
Note that whichever method you choose it would be wise to bootably clone as mentioned above. Your clone would provide backup for your data, a migration medium if needed, and a fail-safe mechanism.
In principle, there would be little difference between the two. Many here say that upgrading, versus erasing and installing, is the superior procedure provided that one's prior installation is in very good condition. Others feel differently. I say just do what you prefer. My bet is that percentage-wise those getting good installs from an erase and install, particularly if all apps are reinstalled, rather than migrated, is higher than for upgrade--but probably not appreciably higher.
The processes leading to the final outcome should lead to a good outcome in either case. But, things can go wrong either way. I am not going to try to elaborate much on the specific ways that things could go wrong either way. But, for the most part, they would have to do with the way migration works and the migration technique used (if used), in the case of erase and install, and the existence of problems in the system existing prior to installation in the case of an upgrade.

Similar Messages

Server 2012 fresh install - Running at a crawl. Possible hardware issue?

Hello All,
I have recently purchased a used server and just fresh installed Server 2012 to evaluate it, and I am experiencing a issue with it running very slow. So far nothing has been setup or installed besides the OS, hard drives, and a external usb drive,
so it is pushing me to believe my issue is hardware related.
First let me describe the issue more. Basically everything is slow to load. Control panel takes 20 seconds... trying to load disk management and other snap in from administrative tools all take 15-20secs+ and first come up in
a greyed out window or the administrative tools window goes to "Not Responding" for a few seconds then loads it.
I do not think it is due to the fact the server is used with slightly dated hardware as it has Dual Quad-Core 2.66 Xeons & 16gb ECC Ram, so I was thinking their must be a bad piece of hardware in there? Maybe bad ram?
Anyway I plan to start hardware diagnostics, but I just wanted to see if anyone had any insight or suggestions for me. And to verify if this sounds like a hardware issue to you as well.
Thanks!

Windows 2008 R2 that is on top of the list of supported operating systems. It is a good choice for some testing with M350 G5. Then you can test the in-place upgrade and application compatibility test will tell you, which component makes the problem.
If for example onboard NIC is not compatible, then you can use another NIC card that is compatible. When it is RAID controller (very often), then either use another RAID or single HDD (it is test only, not for production environment).
You can explore the virtualization path. Get know if appropriate hypervisor from VMvare is compatible with this hardware is also compatible with Windows Server 2012 R2. VMware forum may answer your question on virtualization. Working in virtual environment
will provide some experience too.
Majority of current desktop equipment allows you for testing Windows Server 2012 R2. There are some exceptions, namely "high end game machines" that make you to find remedy for drivers (example
MAXIMUS IV GENE-Z - here is a need to adapt inf file for NIC, because of there is low end NIC on motherboard.)
For low performance issues use native tools like Performace Monitor and diagnostics - Event logs and Device Manager. For detailed analysis consider Sysinternals tools.
HTH
Milos

Satellite L655 - Sound not working on fresh install of Windows 7 Pro x64

Howdy all,
I purchased an L655-S5111 from Newegg that was on sale, put an SSD into it, and then installed a legitimate copy of Windows 7 Professional 64-bit I received from my current employer (I'm an IT guy). I've updated to the latest BIOS revision (1.70), and I've got all Windows updates installed, all drivers installed, including the correct Conexant HD Audio and ATI HDMI Audio drivers. Unfortunately, sound does not work. Sound worked briefly when I first installed Windows 7, then I muted it until I could get it set up with headphones. When I unmuted it, it had ceased to work.
This laptop is less than 3 weeks old at this point, and I get no audio over headphones or speakers, although Windows clearly shows no issues with the drivers, they're the latest version, on a fresh install, and I can see the audio in the mixer playing. The microphone built-in to the laptop does pick up sound as well. I believe that this is most likely not an issue of physical interconnection, but more likely a software level issue, I'm just having trouble identifying where it is at.
I also have no related error messages anywhere in the event logs.
Message was edited by: ADMIN

I have two problems with installing the recovery image:
1) I didn't get a copy of the recovery media with the system
2) The recovery media would install Windows 7 Home Premium 64bit which is what came with the laptop.
Since I have legitimately licensed copies of Windows 7 Pro/Enterprise 64-bit, I would much rather install that. Since I used the drivers and software from the Toshiba website for this particular model, it should be working. There should be no functional difference between the recovery media and a fresh Windows install from the Microsoft-provided Windows media and Toshiba provided drivers from their website.
As you can see in the sysinfo (I'm assuming Keany the respondent is the admin that approved my post and edited it, thus had access to the data which was removed) I have all the Toshiba software and drivers installed, identically to if this was the recovery image, I just have it on a different edition of Windows 7.
I'm open to any other suggestions, but unfortunately it is not possible to do the above.

Problem with importing saved .json backup file in fresh installed firefox 3.6.8? Message "unable to process the backup file", when i choosed option "Restore" from menu "organize your bookmarks" !?

Hello,
my problem is with importing saved .json backup file in fresh installed firefox 3.6.8? Message "unable to process the backup file", when i choosed option "Restore" from menu "organize your bookmarks" !?
Normally that i followed all instructions from your support site, and that i tried many things, but nothing helped :( !?
my .json file isn't corrupted cause it was saved on another partition before formatting my OS.
Please don't tell me that my bookmarks are lost :( cause i had many important things in that bookmarks, on 100.s pages :( ....
Thanks in advance!
Sincerely,
hoho33

"
Can you restore that JSON backup in a new profile?
Did you make sure that it is really a JSON backup and that there is no missing or hidden other file extension?
A JSON backup starts with: {"title":"","id":1,"dateAdded"
A HTML backup starts with: <!DOCTYPE NETSCAPE-Bookmark-file-1>
You can try if you can restore that JSON backup in a new profile.
Create a new profile as a test to check if your current profile is causing the problems
See Basic Troubleshooting: Make a new profile
If that new profile works then you can transfer some files from the old profile to that new profile (be careful not to copy corrupted files)
See http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
Please for administration of this support site, make possibility to quote someone's answer, on this way is dificult to answer somebody who wrote some suggestion!
No, i can't restore JSON backup in new profile, even on fresh installed OS XP SP3, with fresh installation of latest version of firefox!
MAN I TOLD YOU 10X IT'S 200 % JSON BACKUP FILE!!! I'M NOT IN IT FROM YESTERDAY, I WORK IN IT 12 YEARS!!!
I tried restoring json backup in new profile, but nothing, i couldn't restore, cause that stupid error from screen shot which i posted again appears !
Man i'm not totally noob i repeat 2nd time here, and normally that i know to create new profile, and that i tried that, but that didn't help!
I can't believe that FIREFOX has not good support team, and doesn't care for yours users, this will not give me more reason to use in future firefox
like borwser, if i don't have good support, and when i have problem like this, to loose all my very important bookmarks and passwords on them, and
firefox support won't to help me to solve my problem!
If somebody from firefox support team read this, i can give you Remote desktop access to my computer to try solve this problem, like other serious company
like HP, Dell , etc. give remote desktop support to their users!
Corel are you from firefox support team? Please don't write same suggestions, cause i know to read, and i understand well if you write once some suggestion!
Greetzz

How can i gain access to my data on a Time Capsule after a fresh install of Mavericks? I can't access any backups through Time Machine... They appear purple/transparent, and I can't even select them to view their contents. PLEASE HELP!!!

So, I've got several thousand photos, and a decent amount of videos of my daughter, along with a lot of stuff for work stored on my Time Capsule, and now I can't access any of it. I did a fresh install of Mavericks on my MacBook Pro last week sometime, and haven't been able to figure out how to get my files back. Please Help!!! My daughter is 2 and a half, and every picture/video I have of her is locked on this thing. I was planning on making some photo/video projects fo my wife for Christmas, and now I'm definitely not going to be able to pull it off. Her birthday is at the end of January, though, so if I could have it by then, that would rule!
Basically, the bar on the right of the screen has some gray dates, which I can access (all backups after the Mavericks install), and purple dates that go all the way back to March (when I originally purchased and began using the TC) which deny me access/viewing. It's possible that I created a slightly different user name when I reset my MacBook, which I guess is most likely the cause, but I have no idea what to do now to correct it. Thanks for taking the time!

Mavericks does really nasty stuff..
Try manually mounting the sparsebundle and extract the files you want.
Yet another Pondini reference. http://pondini.org/TM/15.html
We have avoided Mavericks you see knowing that it would cause these kinds of issues..
You never ever load a new OS without doing a disk image beforehand.. TM is not reliable enough or trustworthy to be depended on.
If none of the above work..
I would get a USB drive on the computer and install Mountain Lion or whatever OS you had before you unfortunately upgraded to Mavericks.. Then use TM from that decent installation but mount the sparsebundle and choose the backup from a date well before mavericks was installed.
Once you have extracted the files.. or even done a full restore you might be able to extract the files you want.

Fresh install keybinds stop responding [solved]

Hi there,
I've recently been having some issues with Arch. I did a fresh install because I'm running on a chromebook and need as much space as possible only have a 14GB SSD at present until I get round to upgrading it.
I previously installed Arch (i386) with no such issues, but I've recently switched to i3 WM and x86_64 using this: https://wiki.archlinux.org/index.php/Ch … tion_media. Last week I also installed a custom chrome patch
https://wiki.archlinux.org/index.php/Ch … .27_Script and everything was working fine with this. I did a fresh installion of Arch about an hour ago and I'm mentioning this because it allowed me to install Arch 64bit directly from the dual ISO without having to modify the ISO itself so I'm not sure if that's the issue considering the 32bit installation worked from the same ISO.
Now I have some strange issues. Keybinds work fine when I boot up but when I open urxvt it seems to stop all my binds working. Similarly the same issue happens when I run dmenu and open chrome. Sometimes I can open multiple instances of the aforementioned before it stops working. The mouse icon changes as if it's trying to load something, but nothing opens and absolutely no binds work.
I've tried other WM's and get the same issues with urxvt and dmenu.
I have searched google but can't seem to find any related issues so I'm at a loss as to where to begin.
Any help would be greatly appreciated.
Thank you.
Last edited by Gwynplaine (2014-11-20 16:24:37)

It seems that the use of dmenu causes things to hang. I'll reboot and wait a few minutes and see if it automatically does it.
I have not modified any files since installation except enabling wicd and slim with systemctl and the modifications to .xinitrc.
Thanks for the information. I'll bear that in mind.
Edit:
So I rebooted and left the system for five minutes. After that I ran dmenu using alt+d (as defined in i3 config). Dmenu would not open and changed the mousekey to the loading icon and no other bindings would work again.
So I believe that the issue is definitely with dmenu.
Edit 2:
So a little bit more information on dmenu. I have installed it with every installation. My system is 64bit and I have enabled multilib. I installed it through pacman.
I'm going to disable multilib and re-install.
Edit 3:
Same issue. Actually seems worse now.
Edit 4:
I'm wondering if it could be due to this section of .i3/config?
# start dmenu (a program launcher)
bindsym $mod+d exec dmenu_run
# There also is the (new) i3-dmenu-desktop which only displays applications
# shipping a .desktop file. It is a wrapper around dmenu, so you need that
# installed.
# bindsym $mod+d exec --no-startup-id i3-dmenu-desktop
Edit 5:
Okay so after some testing it seems to be i3. I've re-installed, using the i3-git package from AUR. I'm installing Yeganesh and I'll see now how this plays out.
Last edited by Gwynplaine (2014-11-20 01:57:48)

Should I do a fresh install?

Hey guys, I purchased my unibody macbook (Intel core 2 duo 2.4 GHz, 4GB ram, 256 SSD, NVIDIA GeForce 9400M 256MB, running 10.7.2) in April of 2009 and have been using it exclusively ever since.
Recently, my computer has begun to slow down quite a bit. Safari hangs on websites, I receive the spinning rainbow more often, the computer shuts down randomly and won't turn back on for hours, etc. I brought the computer into the apple store (it's still covered by applecare until April of 2012), but all of the diagnostics tests came clean. Over the past few weeks, the computer has continued to slow down quite a bit, and I have noticed that my CPU is reaching levels that I haven't seen before. Currently I only have safari open with one tab, but my fans are running at 6000+ RPM and my CPU is peaking a bit over 90 degrees. I looked at my activity monitor and it seems as though the flash plug-in for safari was hogging my CPU usage. I uninstalled that, reinstalled, repaired disk permissions, and restarted my computer, but that hasn't seemed to help since I did it a few days ago.
I know that while my computer isn't exactly new, the processor in particular, I can't seem to feel as though it should be running more efficiently. I've used 159GB of space on my SSD, with around 60GB of that being music and photos.
My question is whether or not doing a fresh install of lion would possibly alleviate this issue. It might not be bad to do spring cleaning, but only if it will possibly help. If I do proceed with a fresh install, is there a way that I can back up just my documents (all on pages), music (all on itunes), and photos (all on iCloud)? I have plenty of time machine backups ranging from when I got the computer to now since I do it every week, but that would restore the computer entirely to those settings.
Suggestions?

ipodperson1 wrote:
I live in canada and dont want to start downloading it and have it go for 4 hours
Then wait a week or 2 before buying and downloading. Even then the servers may be overloaded. No one knows as it isn't tomorrow yet.
No matter where you are or when you download it, it is going to take some time. If it is the same size as the lion download that could be 40 minutes to several hours depending on your internet speed and the download server internet speed and how busy they are.

Windows 8.1 file history - Restore to fresh install

Hi Everyone
I'm trying to understand the benefits of file history. As Windows 8.1 doesn't allow me to create a system image on a schedule anymore, I now have to resort to file history.
Hypothetical Scenario: OS hard disk catches fire, melts down and is not repairable. The good news! I enabled file history of everything I wanted to "save".
How does one import that "history" back into a fresh install on a new disk? Normally on windows 7, an image could just be written back and presto! the job is done
Does that make sense?
Any help would be appreciated. If this isn't entirely possible, I'll end up tossing my OS disk(SSD into a raid 1)

Hi,
Since Windows 8.1 took away the scheduling feature in System image backup, so as Henrik_Dahl mentioned in the previous reply, we can manually create a scheduled task.
Here're two reference links
Use Scheduled Tasks to Run PowerShell Commands on Windows
http://blogs.technet.com/b/heyscriptingguy/archive/2011/01/12/use-scheduled-tasks-to-run-powershell-commands-on-windows.aspx
How to schedule a Windows 8.1 System Image backup (step-by-step)
http://pureinfotech.com/2013/10/24/schedule-windows-81-system-image-backup/
"What happens if I restore an image and it finds that the file history on another drive is newer?"
I think either the file history is restored to a previous state or some parts of the file history is useless.
NOTE
This response contains a reference to a third party World Wide Web site. Microsoft is providing
this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information
found on these sites.
Yolanda Zhu
TechNet Community Support

New Hard Drive and Fresh Install

I have a late 2006 iMac and I bought an internal 1TB hard drive today to upgrade it. I initially thought to clone my current internal drive to the new one, but I figured that doing a fresh install of Leopard would give better performance. I have a USB adapter for this new drive to connect it externally (temporarily).
My question is... What is the best way to copy my information if I do a fresh install on the new drive? I do have another external drive with a Time Machine backup and I know how to copy over my iTunes library to another computer (I did it with my MacBook) but how would I copy all my other information? The things most important to me are Mail with all my e-mails and accounts and iPhoto with all my pictures. I can copy all my other folders no problem. But like I said, what I'm concerned about most is my Mail and all my pictures. Would all the albums in iPhoto be kept? Basically, I would like to make the new drive as cloned as possible to the original one while doing a fresh install.
Thanks.

I also just purchased a 1TB Internal hard drive - Seagate Barracuda 7200rpm - and used Carbon Copy Cloner to clone my original hard drive (which is running Tiger). Everything seems to be normal, except the the long boot up process. The desktop appears, the dock appears, and then there is a long pause of 20 to 30 seconds before the drives mount and and the desktop folders appear. I have 10 gigs of RAM, I have rebuilt the Directory with Disk Warrior 4.1, and also repaired the disk permissions (although some of them state that they can't be repaired). When I reboot from my original 250 Gig hard drive, the boot is lightning fast. Any thoughts? I have many third party software programs installed and am trying to avoid a fresh Leopard Install. Thanks, this is my first post!

[SOLVED] Fresh Install - LXDE - Missing Window Decorations

Hi folks,
I just did a fresh install on my netbook (Asus 1000h) which went flawless as allways. I did install Xorg, the relevant intel drivers, some small stuff like screen and the like and then went on to install LXDE as the desktop environment + the murrine gtk engine and some murrine themes. Everything is working, the murrine theme etc, except one thing: The window decorations are missing completely.
This is the first time sth. like that happened to me after a fresh install and I'm not really sure what could be missing and 3 hours after trying to delete my ~/.config ~./local folders (I'm using a backup of my ~ - I've checked permissions etc.) I'm ranning out of ideas. I'd be glad for any pointers as to how to debug this or what could possibly cause this.
Thanks in advance.
Last edited by chimeric (2009-05-07 11:50:41)

LXDE does not provide a window manager (and window decorator). They just strongly advise to use OpenBox. On ArchLinux, the group of packages "lxde" doesn't install OpenBox, so you have to install it by yourself, or install another WM. Then, you will need to configure the way you launch X so OpenBox is used.
You may refer to http://lxde.org/lxde .
Last edited by Cilyan (2009-05-07 11:08:04)

Migration of all setup from ebs 12.1.3 to fresh installed ebs 12.1.3

Hi everyone,
EBS 12.1.3 was installed 1year ago on Linux rhel 5. and after 1year with lots of customization and setups.
EBS showing lots of issues ,and requirement is to install fresh EBS 12.1.3 and move all previous EBS data & setup to the freshly installed.
As it seems EBS 12.1.3 was not installed properly which led to so many issues.my questions is.
1)is this possible to install fresh EBS 12.1.3 and then move previous data & setup to this one.
is this recommendable?
if yes? how? Kindly give me a detail guidance
2)how to do a health checkup of currently installed EBS 12.1.3.
I mean if I can show them their is nothing wrong with installation. Then we need to think over other solutions.

what kinda of issues ? are they functional setup issue ? or customization issue?
if yes why would you move those setup when you already have issues on that...
Yes you can migrate
For the application tier migration please see:
Application Tier Platform Migration with Oracle E-Business Suite Release 12 (Doc ID 438086.1)
R11i / R12: Oracle E-Business Suite Upgrades and Platform Migration (https://support.oracle.com/rs?type=doc&id=1377213.1%29Doc ID 1377213.1)
For setup
https://blogs.oracle.com/stevenChan/entry/ten_ways_of_using_isetup_to_st
For the database tier migration please see:
Export/import process for 12.0 or 12.1 using 11gR1 or 11gR2 (Doc ID 741818.1)
Using Transportable Tablespaces for EBS Release 12.0 or 12.1 Using Database 11gR2 (Doc ID 1311487.1)
TO cross check installtion
How to locate the log files and troubleshoot Rapid Install for Release 12.0.x and 12.1.x (Doc ID 452120.1)
ApPsMaStI
sharing is Caring

Fresh install of 11.1 and "sqlplus user@instance/password" does not work

new server, windows server 2008, fresh install of 11.1.0.7 with local instance.
can connect to the instance using "sqlplus user/password" since ORACLE_SID is set,
can connect to a 9.2 remote instance using "sqlplus user@remoteinstance/password".
can't connect using "sqlplus user@localinstance/password".
<command>
l:path>set oracle_sid=localinstance
l:path>sqlplus username/password
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Nov 8 13:11:02 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Release 11.1.0.7.0 - Production
SQL> exit
Disconnected from Oracle Database 11g Release 11.1.0.7.0 - Production
l:\path>sqlplus username@localinstance/password
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Nov 8 13:11:21 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor
l:\path>
l:\path>sqlplus username@remoteinstance/password
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Nov 8 13:11:45 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.8.0 - Production
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.8.0 - Production
l:\path>
</command>
what am i doing wrong?
many thanks in advance,
stephen.

=================================
A couple of important points.
First, the listener is a server side only process. It's entire purpose in life is to receive requests for connections to databases and set up those connections. Once the connection is established, the listener is out of the picture. It creates the connection. It doesn't sustain the connection. One listener, with the default name of LISTENER, running from one oracle home, listening on a single port, will serve multiple database instances of multiple versions running from multiple homes. It is an unnecessary complexity to try to have multiple listeners or to name the listener as if it belongs to a particular database. That would be like the telephone company building a separate switchboard for each customer.
Additional notes on the listener: One listener is capable of listening on multiple ports. But please notice that it is the listener using these ports, not the database instance. You can't bind a specific listener port to a specific db instance. Similarly, one listener is capable of listnening on multiple IP addresses (in the case of a server with multiple NICs) But just like the port, you can't bind a specific ip address to a specific db instance.
Second, the tnsnames.ora file is a client side issue. It's purpose is for address resolution - the tns equivalent of the 'hosts' file further down the network stack. The only reason it exists on a host machine is because that machine can also run client processes.
Assume you have the following in your tnsnames.ora:
larry =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = myhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = curley)
)Now, when you issue a connect, say like this:
$> sqlplus scott/tiger@larrytns will look in your tnsnames.ora for an entry called 'larry'. Next, tns sends a request to (PORT = 1521) on (HOST = myhost) using (PROTOCOL = TCP), asking for a connection to (SERVICE_NAME = curley).
Where is (HOST = myhost) on the network? When the request gets passed from tns to the next layer in the network stack, the name 'myhost' will get resolved to an IP address, either via a local 'hosts' file, via DNS, or possibly other less used mechanisms. You can also hard-code the ip address (HOST = 123.456.789.101) in the tnsnames.ora.
Next, the request arrives at port 1521 on myhost. Hopefully, there is a listener on myhost configured to listen on port 1521, and that listener knows about SERVICE_NAME = curley. If so, you'll be connected.
What can go wrong?
First, there may not be an entry for 'larry' in your tnsnames. In that case you get "ORA-12154: TNS:could not resolve the connect identifier specified" No need to go looking for a problem on the host, with the listener, etc. If you can't place a telephone call because you don't know the number (can't find your telephone directory (tnsnames.ora) or can't find the party you are looking for listed in it (no entry for larry)) you don't look for problems at the telephone switchboard.
Maybe the entry for larry was found, but myhost couldn't be resolved to an IP address (say there was no entry for myhost in the local hosts file). This will result in "ORA-12545: Connect failed because target host or object does not exist"
Maybe there was an entry for myserver in the local hosts file, but it specified a bad IP address. This will result in "ORA-12545: Connect failed because target host or object does not exist"
Maybe the IP was good, but there is no listener running: "ORA-12541: TNS:no listener"
Maybe the IP was good, there is a listener at myhost, but it is listening on a different port. "ORA-12560: TNS:protocol adapter error"
Maybe the IP was good, there is a listener at myhost, it is listening on the specified port, but doesn't know about SERVICE_NAME = curley. "ORA-12514: TNS:listener does not currently know of service requested in connect descriptor"
Third: If the client is on the same machine as the db instance, it is possible to connect without referencing tnsnames and without going through the listener.
Now, when you issue a connect, say like this:
$> sqlplus scott/tigertns will attempt to establish an IPC connection to the db instance. How does it know the name of the instance? It uses the current value of the enviornment variable ORACLE_SID. So...
$> export ORACLE_SID=fred
$> sqlplus scott/tigerIt will attempt to connect to the instance known as "fred". If there is no such instance, it will, of course, fail. Also, if there is no value set for ORACLE_SID, the connect will fail.
check executing instances to get the SID
[oracle@vmlnx01 ~]$ ps -ef|grep pmon|grep -v grep
oracle    4236     1 0 10:30 ?        00:00:00 ora_pmon_vlnxora1set ORACLE_SID appropriately, and connect
[oracle@vmlnx01 ~]$ export ORACLE_SID='vlnxora1
[oracle@vmlnx01 ~]$ sqlplus scott/tiger
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Sep 22 10:42:37 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing optionsNow set ORACLE_SID to a bogus value, and try to connect
SQL> exit
[oracle@vmlnx01 ~]$ export ORACLE_SID=FUBAR
[oracle@vmlnx01 ~]$ sqlplus scott/tiger
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Sep 22 10:42:57 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory
Enter user-name: Now set ORACLE_SID to null, and try to connect
[oracle@vmlnx01 ~]$ export ORACLE_SID=
[oracle@vmlnx01 ~]$ sqlplus /scott/tiger
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Sep 22 10:43:24 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
ERROR:
ORA-12162: TNS:net service name is incorrectly specifiedOk, that is how we get from the client connection request to the listener. What about the listener's part of all this?
The listener is very simple. It's job is to listen for connection requests and make the connection (server process) between the client and the database instance. Once that connection is made, the listener is out of the picture. If you were to kill the listener, all existing connections would continue. The listener is configured with the listener.ora file, but if that file doesn't exist, the listener is quite capable of starting up with all default values. One common mistake with the listner configuration is to specify "HOST=localhost" or "HOST=127.0.01". This is a NONROUTABLE ip address. LOCALHOST and ip address 127.0.0.1 always mean "this machine on which I am sitting". So, all computers are known as "localhost" or "127.0.0.1". If you specify this address, the listener will only be capable of receiving requests from the machine on which it is running. If you specified that address in your tnsnames file - on a remote client machine - the request would be routed to the machine on which the requesting client resides. Probably not what you want.
=====================================

Macbook acting wierd even after fresh install of OS

i've got a 13" macbook i've had for a couple of years. i've had no problems with it until about a month ago when it started acting weird. it was becoming very slow and crashed regularly when i tried to run simple applications like itunes or safari. even when i tried to shut it down, it sometimes gave me that message on the screen where it informes you to hold down the power button to shut down.
i decided to do a complete re-install of my osx to give it a fresh start. so having re-installed leopard, and with nothing on my hard drive apart from the pro tools and cubase programs i've re-installed (it won't be these as they're both legit programs that i've been using on this mac for 2 years), it still seems to crash and not shut down properly.
i've actually done another clean re-install a couple of days ago to see if this made a difference, but sti ll the same problems.
i was under the impression that any viruses or bugs that we're making my mac act weird would have been wiped when i done a fresh install of my os.
can anyone tell me where i'm going wrong?
thanks
Message was edited by: Simon Finley
Message was edited by: Simon Finley

It's not a virus.
The screen you see (that requests you to restart your computer) is referred to as a kernel panic; these are often hardware-related.
What you're describing sounds like a possible hard drive failure.
Have you run the Apple Hardware Test? Is your computer still under warranty?
Get your data backed up, if you haven't already, just in case!
~Lyssa

Rolling my own kernel off a fresh install

Hey folks!
I just recently acquired an Acer Aspire One. In a vain effort to get the wireless working off of a fresh install I thought that I might compile my own kernel version 2.6.27 (and I hoped that the ath5k driver would automagically work). Sadly I ran into some issues, and owing to my ignorance of Linux kernel compiling magic I have posted here to the Newbie forum:
So I get to the point where I need to install the kernel (after compiling from source), but I lack the program mkinitrd. I did some research and apparently we use mkinitramfs, which the fresh install also doesn't come with.
My questions are thus:
1) Is it possible to make an initrd on a computer which the initrd is NOT intended for?
2) Why is it that a fresh install doesn't come with the stuff required to recompile a kernel, I would think that might be important?
I am thankful for any help!

Hey awesome, this looks good.
If a package is included in the "Core" repository, does that mean it comes rolled up with the Arch install?
EDIT:
I see now that this is the case. From the Official Arch Linux Install Guide:
The core iso (~300MB) is a live environment which contains a snapshot of the entire /core repository. Packages are divided into 4 categories: BASE, SUPPORT, DEVEL and LIB. RAID/LVM are fully supported; all necessary packages are included within /core. Installing from a medium created with this image results in a completely functional GNU/Linux system, without any frills, expecting to be used from the command line; the Linux kernel, GNU toolchain and a few extra modules and libraries. This image is ideally suited for those who have a rather slow or nonexistent internet connection on the candidate machine, making an FTP install unfeasible. The name of the iso will be "archlinux-i686-2008.xx-x.core.iso", according to your architecture
Last edited by amackera (2008-11-04 01:15:00)

[Solved] Amilo XI 2550 - Black screen after fresh install

Dear archlinux users,
I have been reading the archlinux wiki and forums since I started using arch several years ago. It was always possible to solve the problems I ran into by consulting these webpages, therefore a big thanks to the community for the provided help.
Two weeks ago I installed arch on a Fujitsu Siemens Amilo XI 2550. The first problem I ran into was that booting the live-cd resulted in a black screen and I could not even start with installing arch. This problem was solved with the kernel parameter 'nomodeset'.
The first boot of the freshly installed arch also resulted in a black screen after the GRUB menu which was perfectly displayed. After some searching (here and here and ...) I plugged in an external monitor and it showed the login screen. I then installed KDE because I thaught the problem might not show up with X and KDE running. After the login to KDE I realized that the brightness of the laptop display is nearly black but not totally. It seems as if the brightness is at a very low level, but brightness cannot be controlled with the Fn+F8 or Fn+F9 commands. But I see a OSD that indicates that the controls are used but without effect. So at the moment it is only possible to work on the laptop with another display connected to it.
Maybe of use:
ls /sys/class/backlight/
acpi_video0
radeon_bl0
less /sys/class/backlight/acpi_video0/bl_power
0
less /sys/class/backlight/acpi_video0/actual_brightness
7
less /sys/class/backlight/acpi_video0/brightness
7
less /sys/class/backlight/acpi_video0/max_brightness
7
less /sys/class/backlight/radeon_bl0/bl_power
0
less /sys/class/backlight/radeon_bl0/actual_brightness
255
less /sys/class/backlight/radeon_bl0/brightness
255
less /sys/class/backlight/radeon_bl0/max_brightness
255
dmesg | grep drm
[ 0.736559] [drm] Initialized drm 1.1.0 20060810
[ 0.743608] [drm] radeon kernel modesetting enabled.
[ 0.743678] fb: switching to radeondrmfb from VESA VGA
[ 0.744054] [drm] initializing kernel modesetting (RV630 0x1002:0x9583 0x1734:0x1107).
[ 0.744065] [drm] register mmio base: 0xCFEF0000
[ 0.744067] [drm] register mmio size: 65536
[ 0.744172] [drm] Detected VRAM RAM=256M, BAR=256M
[ 0.744174] [drm] RAM width 128bits DDR
[ 0.744257] [drm] radeon: 256M of VRAM memory ready
[ 0.744259] [drm] radeon: 512M of GTT memory ready.
[ 0.744275] [drm] Loading RV630 Microcode
[ 0.744345] [drm] Internal thermal controller without fan control
[ 0.744386] [drm] radeon: power management initialized
[ 0.744389] [drm] GART: num cpu pages 131072, num gpu pages 131072
[ 0.762830] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[ 0.762873] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.762874] [drm] Driver supports precise vblank timestamp query.
[ 0.762937] [drm] radeon: irq initialized.
[ 0.794780] [drm] ring test on 0 succeeded in 1 usecs
[ 0.795253] [drm] ib test on ring 0 succeeded in 0 usecs
[ 0.795942] [drm] radeon atom DIG backlight initialized
[ 0.795945] [drm] Radeon Display Connectors
[ 0.795947] [drm] Connector 0:
[ 0.795948] [drm] LVDS-1
[ 0.795950] [drm] DDC: 0xac0 0xac0 0xac4 0xac4 0xac8 0xac8 0xacc 0xacc
[ 0.795951] [drm] Encoders:
[ 0.795952] [drm] LCD1: INTERNAL_LVTM1
[ 0.795953] [drm] Connector 1:
[ 0.795954] [drm] DIN-1
[ 0.795955] [drm] Encoders:
[ 0.795956] [drm] TV1: INTERNAL_KLDSCP_DAC2
[ 0.795957] [drm] Connector 2:
[ 0.795958] [drm] HDMI-A-1
[ 0.795960] [drm] HPD1
[ 0.795961] [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
[ 0.795963] [drm] Encoders:
[ 0.795964] [drm] DFP1: INTERNAL_KLDSCP_TMDS1
[ 0.795965] [drm] Connector 3:
[ 0.795966] [drm] VGA-1
[ 0.795968] [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[ 0.795969] [drm] Encoders:
[ 0.795970] [drm] CRT1: INTERNAL_KLDSCP_DAC1
[ 1.278449] [drm] fb mappable at 0xD0141000
[ 1.278451] [drm] vram apper at 0xD0000000
[ 1.278453] [drm] size 9216000
[ 1.278454] [drm] fb depth is 24
[ 1.278455] [drm] pitch is 7680
[ 1.278527] fbcon: radeondrmfb (fb0) is primary device
[ 1.726069] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
[ 1.770030] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:00.0 on minor 0
Until now and amongst others I tried the following things.
Using kernel parameters
video.use_native_backlight=1
video.use_native_backlight=0
acpi_osi=linux
acpi_backlight=vendor
and others I just cannot remember.
Masking backlight
systemctl mask systemd-backlight@backlight:acpi_video0.service
systemctl mask systemd-backlight@backlight:radeon_bl0.service
Setting bl_power
echo 1 > /sys/class/backlight/acpi_video0/bl_power
echo 1 > /sys/class/backlight/radeon_bl0/bl_power
Nothing of the above was improving the situation.
Your help on the problem would be highly appreciated.
Best regards
mgs
Last edited by mgs (2014-10-27 10:15:11)

Hello Trilby,
thanks for the reply.
Trilby wrote:If nomodeset worked with the installation medium, why haven't you tried that for the same problem on your installed system?
The kernel parameter 'nomodeset' results in a working display but without X support, due to the fact that with 'nomodeset' there is no KMS support and therefore no X. But nevertheless I tried it and as expected X did not start.
Trilby wrote:Could you also post information about your graphics card and what drivers you've installed.
The graphics card is a Radeon HD 2700 and according to the above dmesg log it is recognized as RV 630. The radeon module is loaded via /etc/mkinitcpio.conf and xf86-video-ati (1:7.5.0-1) is installed.
I hope the provided information is what you asked for, thanks for your help.
Best regards
mgs

Is a fresh install possible?

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