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  • Foreign keys with Rails' ActiveRecord::Migration?

    - by Earlz
    Hello, I'm new to Ruby on Rails (I know Ruby just decently though) and looking at the Migration tools, it sounds really awesome. Database schemas can finally (easily) go in source control. Now my problem with it. When using Postgres as the database, it does not setup foreign keys. I would like the benefits of foreign keys in my schema such as referential integrity. So how do I apply foreign keys with Migrations?

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  • Cakephp 1.3 database migration with

    - by Vijay Kumbhar
    Hello All, I am using cakephp 1.3 on LAMP (ubuntu 9.04) platform. Trying the database migration with cakephp inbuilt schema generation script. I am inside the app folder & When i fire a command in the terminal 'cake schema run create schema file name', It is giving me the error that "Error:schema.php could not be included." Can anybody help me out?

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  • PostgreSQL compare databases tool or generating migration script util

    - by opedge
    In our development we use two servers with PostgreSQL 8.4 - development and production. So, after changes were made on development server we would like to automatically generate SQL migration scripts. I found that EMS DB Comparer for PostgreSQL can do it, but it is only for Windows (our development team use Ubuntu for developing). Do you now alternative tools to do this?

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  • Hyper-V virtual machine can't be migrated to a specific host in the cluster

    - by Massimo
    I have a three-node Hyper-V cluster running on Windows Server 2008 R2 which is working quite flawlessly: there are no errors, live migration works, all hosts can and will happily run all virtual machines, and so on. But one specific virtual machinee is trying to make me go mad: it works on two nodes of the cluster, but not on the third one. Whenever I try to move the VM to that node, be it in a live migration or with the VM powered off, it always fails. In the event log of the host these events are logged: Source: Hyper-V-VMMS Event ID: 16300 Cannot load a virtual machine configuration: General access denied error (0x80070005) (Virtual machine ID <GUID>) Source: Hyper-V-VMMS Evend ID: 20100 The Virtual Machine Management Service failed to register the configuration for the virtual machine '<GUID>' at 'C:\ClusterStorage\<PATH>\<VM>': General access denied error (0x80070005) Source: Hyper-V-High-Availability Event ID: 21102 'Virtual Machine Configuration <VM>' failed to register the virtual machine with the virtual machine management service. All other VMs can be moved to/from the offending host, and the offending VM can be moved between the other two hosts. Also, this is not a storage problem, because there are other VMs in the same cluster volume, and the host has no troubles running them. What's going on here?

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  • Mass-migrating from POP3 to Exchange 2010, how do I copy mailboxes?

    - by Erik P. Skaalerud
    I'm in the process of planning our migration from an internal hosted POP3-server (dovecot) to Exchange 2010. We're using Outlook 2003 for the moment, but will soon upgrade to Outlook 2010. The big problem is that we have about 50 computers here in our HQ, plus ~30 clients in branch offices (wich will get their Exchange migration later sometime). I'm the only IT personel, and having to go around and manually set up Outlook and copy over their PST contents is not a option I'm looking for. Some users have set outlook to keep messages for X number of days on the POP3 server, others have not. Using a POP3 connector to transfer over the mails is not a viable option. Here is what I've done so far: Created a transform for the Office 2003 administrative installation point Created a .PRF file to modify any existing e-mail account to switch over to Exchange (including the RPC-encrypt hotfix described in MSKB 2006508) Tested both transform and PRF, both works Created a test-OU and GPO containing the Office 2003 installation with transform applied, also works My big question is: How can I force Outlook to import any existing .PST into the new Exchange mailbox when the user starts up Outlook for the first time after the MST/PRF have been applied? Is this possible?

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  • Exchange migration to 2007 making Outlook 2003 unable to read meeting requests

    - by Kvad
    Hi, We are currently moving from Exchange 2003 to 2007 (8.2 build 176.2). We have encounted an issue with one user. In Outlook 2003 when getting a meeting request: "Can't open this item. Could not complete the operation. One or more parameter values are nto valid." The item cannot be previewed in the reading pane either. The item can be viewed in OWA and iPhone fine. I've tried with cache mode off and on. Different computers. Same issue. There are the following entries on the account: SMTP [email protected] [email protected] X400 C=AU;A= ;P=Company Name;O=Exchange;S=LastName;G=FirstName; I'm loathe to recreate the account. This will be an extreme last resort. Any ideas? Thanks in advance.

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  • Google privacy concerns: trustworthy alternatives for migration?

    - by Markos Fragkakis
    I have come to realize the tremendous amount of information Google has on its users. I am a typical Google user, using Gmail, Google Reader. This means that right now Google now has the following information at its disposal: Who my friends are (Gmail) What we talk about (Gmail, Google Talk) What news sources I follow (Google Reader) How frequently I check them and which ones I consider important enough to share (Google Reader) A lot of other stuff What I search about and when (if I search when logged in) (Web search) I have no reason to believe that this information is used for reasons other than adjusting what ads I am displayed when I visit a site with Google Ads. However, I have realised that I am in no position to be certain that this is absolutely true, or that it always will be. On the other hand, I don't want to reach the uber-privacy-maniac state of maintaining my own email server and installing a desktop RSS reader in all my machines. So, I am asking for your opinions: What services constitute a good set of alternatives to the Google services, promising better privacy? Pros: Privacy Free Powerful Usable

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  • Windows 7 migration led to crashdump and hibernate problems

    - by MartyMacGyver
    Note: I'm using a Samsung 830 SSD (migrated OS from defunct PC) and other than these two (interrelated?) problems it's working fine. Surprisingly well actually. Motherboard is a ASUS P8Z77-V Deluxe. Problem 1: Crashdumps are not working. volmgr throws an event 45 "The system could not sucessfully load the crash dump driver." whenever you modify crashdump settings, or if a crashdump occurs. diskpart says that "Crashdump disk = no" which is peculiar. Problem 2: Hibernation isn't working. Again, volmgr throws the same event 45 if you try to hibernate. The screen blanks, then you're at the password prompt. No sleepage occurs. (Yes, I know I should avoid hibernation on SSDs but it's enabled and the hibernation file is definitely there so I'd like to know why it's failing). Diskpart claims "Hibernation file = no" which is again peculiar... it's plainly there and getting created by the system. The common factor appears to be volmgr and/or the crashdump "service" (if that's what it is). I'd much rather get this working than spend days reinstalling and reconfiguring the entire system, especially when it's working perfectly otherwise. Sleep works as well (as long as it's not hybrid sleep). So, what defines the flags "Crashdump disk" and "Hibernation file disk" in diskpart's output? And what might be going wrong that's breaking crashdumps in particular?

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  • Can't uninstall SBS 2003 in sbs 2003 -> sbs 2008 migration

    - by ChrisMuench
    I'm trying to remove sbs from my sbs 2003 server. Also I'm logged in as Administrator. However When I start to go through the wizard it gives me the following error. You must be a member of the Domain Admins, Schema Admins, and Enterprise Admins group. I then did some research and found this (http://support.microsoft.com/kb/842694) and I came to the point where it says to delete the server from Sites and Services. However when I clicked delete it wanted me to dcpromo the box first. However I have read you have to uninstall exchange first and then dcpromo it to remove AD. Any ideas?

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  • Roaming profile migration failed using Windows explorer manual copy

    - by Albert Widjaja
    Hi All, I'm at the final stage of migrating an old demoted DC server, now I'm stuck in migrating/copying the roaming profiles of the users from the old win2k server (oldServer1) into the new win2k3 server (newServer1) there are lots of profiles which points into the old server: \\oldServer1\profiles\user1 \\oldServer1\profiles\user2 \\oldServer1\profiles\user3 . . . \\oldServer1\profiles\userN in the ProfilePath I'd like to move it into: \\newServer1\profiles\user1 \\newServer1\profiles\user2 \\newServer1\profiles\user3 . . . \\newServer1\profiles\userN I tried to copy paste from my DOMAIN\Administrator account but it is failed to copy ? i cannot even browse inside the directory of user1 until userN ? is there any fastest way to do the copy process rather than "taking ownership" for each of those directory one by one ? [hopefully by taking ownership the user will still be able to use their profile normally] Thanks.

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  • Mac OSX Server - Mac Mini to XServe Migration

    - by notpeter
    If I build out a Mac OSX Server install on a Mac Mini and then when it's ready for production I image the disks to an XServe, is there any reason the resulting system won't just work? Assuming I'm able to keep the same IP address are there any other issues I should be aware of? I'll be running minimal services, just AFP, SMB and Open Directory. TMI: My Intel XServe is full of cruft. Was originally a G4 XServe running 10.3, upgraded to 10.4 then migrated to 10.5 on the Intel XServe. I'd like a clean start, but can't spare the XServe downtime while I build out the install, can I just use a Mac Mini for dev and then switch to the XServe for production.

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  • Migration from XP to Windows 7 using recovered HD

    - by KenK
    Is it possible to migrate the Windows XP Pro 32 bit operating system, applications etc from a USB external drive which is the recovered hard drive from that failed system to my new desktop computer with Windows7 64 bit system? In doing so, I would like to set up the new computer with the OS and all general applications on the primary 1TB hard drive while the secondary 1TB hard drive to have nothing else but graphics programs and gaming applications complete with their related files and add-ons. What will I need to accomplish this task efficiently and economically?

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  • L'adoption de Microsoft Exchange Server 2010 devrait s'accélérer en 2011 selon Mimecast, mais la migration est vue comme délicate

    L'adoption de Microsoft Exchange Server 2010 devrait s'accélérer en 2011 Selon Mimecast, mais la migration est vue comme délicate Un sondage publié récemment montre que la migration vers Microsoft Exchange Server 2010 va fortement d'accélérer dans les prochains mois. La solution de messagerie d'entreprise de Microsoft, dont le Service Pack 1 est disponible depuis déjà quelques mois a fait l'objet d'une étude menée par Mimecast, fournisseur des services de messagerie unifiée. L'étude révèle que 51,9 % de...

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  • Suggestions for Windows 8 migration [closed]

    - by Big Endian
    I'm thinking of migrating to Windows 8. At first I hated it, but I'm pretty sure the Windows 8 model is the future, and I don't particularly want to end up hating the future like my parents, frustrated and bewildered by anything past Windows XP. I'm currently running Windows 7 and my system has been accumulating some problems. It's probably an accumulation of issues from installing too much software, changing firewall settings, installing Ubuntu alongside Windows, and... well I'm not sure, but my computer has been buggy in unexpected ways lately (freezing and unfreezing, display driver crashing and recovering, and what I call "deep freeze/thaw cycle" where the mouse won't even move for a while). I'm good at solving computer problems, but I can't seem to get to the root of these and my best idea for fixing them is making sure I've backed up every file then re-installing the entire OS. Luckily for me, a new OS is just around the corner so this would be a good time to get two things out of the way at once. The problem I see is that the upgrade options I see are all "seamless". I don't want a seamless upgrade. I want to wipe the slate clean and start all over. Does this mean I will have to buy a full, new copy of Windows 8 rather than one of the cheaper upgrading options? Or does it not make since for me to go to Windows 8 given that I have a laptop, not a tablet? Maybe I should just re-install Windows 7, or even call good enough good enough, try to eliminate the bugs, and start with a fresh slate in 2-3 years after this computer eventually dies entirely from (inevitable) hardware failure. What would be the advantages or disadvantages and costs of each option, how would I go about upgrading to Windows 8 if that's the option I choose, and what is your personal opinion about my situation?

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  • Removing Exchange 2010 and SBS2011 gracefully after migration to Server 2008 Std R2

    - by user145275
    We have recently completed a server replacement for a customer. They had SBS2011 using Exchange 2010. They now have Server 2008 Std R2 and Google Apps email. We have migrated the DHCP, DNS, Filserver and all 5 FSMO roles to the new 2008 R2 server (today). During the grace period for SBS2011 we intend to decomission the old server completely. Previous experience would suggest uninstalling Exchange 2010 then demote SBS2011 then remove from the domain and switch off. Can I simply demote SBS2011 without removing Exchange? Can't really find any walkthroughs on this. My concern is that if we simply turn off SBS2011 the AD is left in a mess with legacy Exchange objects making any potential reintroduction of Exchange difficult in future, plus I want to do it the right way!

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  • FreeBSD 32bit to 64bit migration

    - by eugene y
    I need to transfer my LAMP server (FreeBSD 7.0 i386) to another hosting. I would like to also upgrade to the 64bit version (to eliminate 4GB memory limit). Anyone have some pre-destructive suggestions? Any tutorials that you're familiar with that give an idea of the gotchas? Thanks!

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  • R2 live migration between Opteron 8354 and 2435

    - by Safin09
    As per title, will the processor compatibility option allow a live migrate between an AMD Opeteron 2435 (dual proc, hex core) and an AMD Opteron 8354 (quad proc, quad core)? We are out of capacity and wish to use a newer dual socket server rather than an older (yet much more expensive) quad socket server in our cluster.

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  • Skype account migration / username change

    - by Kristian Glass
    Some time ago now I created myself a Skype account. I've since amassed a number of contacts, and also realised that the username I chose really isn't one I wish to continue using, for a variety of reasons. Services like Twitter and GitHub offer username-change functionality; I can't find this in Skype. Am I missing something, or does it just not exist? If, as I suspect, it doesn't exist, is there anything I can do to migrate my contacts across to a new, more sensibly-named, account, or am I going to find myself having to manually publicise my account name change and adding contacts to the new account one-by-one?

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  • SQL Server Subscriber Migration

    - by SuperCoolMoss
    We're currently have one way transaction replication from a SQL Server 2005 OLTP publisher/distrbituor to two subscribers (one SQL 2005 and the other SQL2008 R2). Replication security is via the SQL Agents' domain service account (the same account is used on all boxes). The SQL2008R2 subscriber is used for BI purposes and hosts a database that has a subset of the Production publisher database tables, with different security and indexes. We need to migrate this BI subscriber to a newer box with more performant hardware. The plan is as follows: Stop replicating to the BI box (continue replicating to the other subscriber). Backup all databases on the BI box (including system databases). Restore all databases (including master in single user mode) to the new BI box (this has SQL Server 2008R2 already installed). Take the old BI box off the network and shut it down. Rename and Re-IP the new BI box to be the same as the old box. Switch replication back on. Are there any flaws in this approach?

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  • KVM to Xen migration

    - by qweet
    I've recently been appointed to create some VMs for production use, and went gung ho into making a KVM based VM instead of finding out what our production server uses. I've only recently found out though that our own servers use Xensource OS, and don't look like they're going to be upgraded in the near future. So for the moment, I'm stuck with either two choices- attempting to convert the KVM VM into a Xen VM, or rebuilding what I have into a new Xen VM. Being the lazy person I am, I would rather not have to rebuild the VM. I've looked for some documentation on a procedure to do this, but the only thing I can come up with is an ancient article with some vague instructions. So this is my question, Server Fault- can one migrate a KVM running on a KVM kernel to a Xen kernel? And if so, how?

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  • How to reinstall bootloader after migration to SSD

    - by hijarian
    I must say, it was difficult to name this question. Basically, I need to properly reinstall the bootloader on my system, because I already have the working system disks for my OSes. The long story is this: I had the large slow HDD with Windows7 & Debian Wheezy dual-boot on it, perfectly bootable. Then, I ordered the SSD drive and prepared my system partitions to fit onto the much smaller SSD. I wanted the following schema: 128 GB Windows 24 GB / on Debian 86 GB /home on Debian Strange size for /home because there's no such thing as true 256GB disk drive. So, I've prepared such a partitions on my initial HDD and installed the new SSD and then I loaded the GParted live USB (can't remember now how it was really named), and then just copypasted the partitions from HDD to SSD. So, now I have the following partitions across the physical disks: SSD 128 GB copy of original Windows partition 24 GB copy of presumably Debian / 86 GB copy of presumably Debian /home HDD 128 GB Windows 24 GB / on Debian 86 GB /home on Debian ... several other partitions with non-system data ... And the behavior of the system right after the Ctrl+C, Ctrl+V in GParted was as follows: no GRUB, system boots right into the Windows on HDD. In BIOS settings are to boot from SSD first. I managed to create the Debian Testing installation USB and loaded it into the rescue mode, found that it identified my SSD as /dev/sda and installed the GRUB to the /dev/sda. Now my system loads the GRUB which lists both Windows and Debian. From HDD. So, I am now back into initial position. Please, how I should set up the GRUB so it'll load the OSes correctly from SSD? Should I fire up my Debian, fiddle with the GRUB's config and reinstall it again to the same place (at SSD)?

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