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• How to script a reinstall (apt repo's and installed packages)

  - by Kurtosis

  I need to wipe my hard drive and reinstall Ubuntu. /home is on a separate partition, so I can back that up to a backup drive, then copy it back to the wiped drive, install ubuntu, and point it at the existing /home, no problem. However, I also want to script a reinstall of all my apt repo's and the packages I currently have installed, so I don't have to waste hours doing that manually. Anyone know a good way to do this? PS - At least, I'm pretty sure I have to wipe the drive. Need to install Windows 7, and only have an HP system restore disk that formats the whole drive, and not a legit Windows 7 install disk that lets me install on a single partition. If somebody know a way to trick the system restore disk to install only to a single partition, I'd love to hear it.

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• Sharing Files between Ubuntu 14.04 and Windows 8

  - by Matinn

  I have Ubuntu and Windows 8 installed on one System. I am trying to share files between these two operating systems using an NTFS Partition wich was created by Windows. I don't have trouble accessing the data on this partition from Ubuntu, however if i create a file in Ubuntu, this file doesn't show up when I boot into Windows. Does anyone know how to do this. From what I have read file sharing should work without installing any additional Software, as I am not trying to access the Linux ext4 Partition from Windows.

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• busybox initramfs prompt while attempting to install from live cd on 2nd hdd

  - by da92n

  busybox initramfs prompt while attempting to install from live cd on 2nd hdd I've created a partition in ext3 on my second hdd to intall linux however when i come to boot the CD i get directed to a busybox prompt with no other choice than help. Other topics i've read on the subject where bound to the idea ubuntu has been already installed, and that the partition needs to be just indicated or else... But since i've no ubuntu installed, neither have i any partition that ubuntu should consider like that... How can i go through that?

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• Half the time Linux drop into BusyBox; the rest of the time the boot happens normally

  - by JoBu1324

  I just installed Ubuntu x64 onto a USB3 Drive from a DVD, and half the time it appears to skip the grub menu and boots directly into BusyBox. Since the USB3 drive is an SSD, I ran through the full installation (installing on an ext4 partition, along side a 1GB boot partition at the start of the disk), skipping the swap partition. Part of the time that the Grub Menu does shows, it boots into BusyBox with an error: ALERT! /dev/disk/by-uuid/[uid] does not exist. Dropping to a shell! What could cause such an issue?

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• Microsoft Sql Server 2008 R2 System Databases

  For a majority of software developers little time is spent understanding the inner workings of the database management systems (DBMS) they use to store data for their applications.  I personally place myself in this grouping. In my case, I have used various versions of Microsoft’s SQL Server (2000, 2005, and 2008 R2) and just recently learned how valuable they really are when I was preparing to deliver a lecture on "SQL Server 2008 R2, System Databases". Microsoft Sql Server 2008 R2 System DatabasesSo what are system databases in MS SQL Server, and why should I know them? Microsoft uses system databases to support the SQL Server DBMS, much like a developer uses config files or database tables to support an application. These system databases individually provide specific functionality that allows MS SQL Server to function. Name Database File Log File Master master.mdf mastlog.ldf Resource mssqlsystemresource.mdf mssqlsystemresource.ldf Model model.mdf modellog.ldf MSDB msdbdata.mdf msdblog.ldf Distribution distmdl.mdf distmdl.ldf TempDB tempdb.mdf templog.ldf Master DatabaseIf you have used MS SQL Server then you should recognize the Master database especially if you used the SQL Server Management Studio (SSMS) to connect to a user created database. MS SQL Server requires the Master database in order for DBMS to start due to the information that it stores. Examples of data stored in the Master database User Logins Linked Servers Configuration information Information on User Databases Resource DatabaseHonestly, until recently I never knew this database even existed until I started to research SQL Server system databases. The reason for this is due largely to the fact that the resource database is hidden to users. In fact, the database files are stored within the Binn folder instead of the standard MS SQL Server database folder path. This database contains all system objects that can be accessed by all other databases.  In short, this database contains all system views and store procedures that appear in all other user databases regarding system information. One of the many benefits to storing system views and store procedures in a single hidden database is the fact it improves upgrading a SQL Server database; not to mention that maintenance is decreased since only one code base has to be mainlined for all of the system views and procedures. Model DatabaseThe Model database as the name implies is the model for all new databases created by users. This allows for predefining default database objects for all new databases within a MS SQL Server instance. For example, if every database created by a user needs to have an “Audit” table when it is  created then defining the “Audit” table in the model will guarantees that the table will be located in every new database create after the model is altered. MSDB DatabaseThe MSDBdatabase is used by SQL Server Agent, SQL Server Database Mail, SQL Server Service Broker, along with SQL Server. The SQL Server Agent uses this database to store job configurations and SQL job schedules along with SQL Alerts, and Operators. In addition, this database also stores all SQL job parameters along with each job’s execution history.  Finally, this database is also used to store database backup and maintenance plans as well as details pertaining to SQL Log shipping if it is being used. Distribution DatabaseThe Distribution database is only used during replication and stores meta data and history information pertaining to the act of replication data. Furthermore, when transactional replication is used this database also stores information regarding each transaction. It is important to note that replication is not turned on by default in MS SQL Server and that the distribution database is hidden from SSMS. Tempdb DatabaseThe Tempdb as the name implies is used to store temporary data and data objects. Examples of this include temp tables and temp store procedures. It is important to note that when using this database all data and data objects are cleared from this database when SQL Server restarts. This database is also used by SQL Server when it is performing some internal operations. Typically, SQL Server uses this database for the purpose of large sort and index operations. Finally, this database is used to store row versions if row versioning or snapsot isolation transactions are being used by SQL Server. Additionally, I would love to hear from others about their experiences using system databases, tables, and objects in a real world environments.

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• Install Ubuntu on MacBook Pro without a CD

  - by Thomas Egan

  Trying to install Ubuntu server on my MacBook however the CD drive is not working. All the guides I have seen so far use the bootcamp process (same as for windows) to achieve this. I currently have a windows partition on my machine (it was installed with a CD when the drive was ok) which I'm going to remove before I do this. Is it possible to boot using the USB drive from the Mac bootloader using this method? I don't want to remove my Windows partition to find that I NEED a CD to do this. I would also prefer to have a separate partition as opposed to any sort of VM setup to do this.

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• Coherence Query Performance in Large Clusters

  - by jpurdy

  Large clusters (measured in terms of the number of storage-enabled members participating in the largest cache services) may introduce challenges when issuing queries. There is no particular cluster size threshold for this, rather a gradually increasing tendency for issues to arise. The most obvious challenges are that a client's perceived query latency will be determined by the slowest responder (more likely to be a factor in larger clusters) as well as the fact that adding additional cache servers will not increase query throughput if the query processing is not compute-bound (which would generally be the case for most indexed queries). If the data set can take advantage of the partition affinity features of Coherence, then the application can use a PartitionedFilter to target a query to a single server (using partition affinity to ensure that all data is in a single partition). If this can not be done, then avoiding an excessive number of cache server JVMs will help, as will ensuring that each cache server has sufficient CPU resources available and is also properly configured to minimize GC pauses (the most common cause of a slow-responding cache server).

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• Can't boot WIndows 7 CD installer after installing ubuntu Boot-repair failed please help

  - by user293164

  An error occurred during the repair. Please write on a paper the following URL: http://paste.ubuntu.com/7638031/ In case you still experience boot problem, indicate this URL to: [email protected] You can now reboot your computer. The boot files of [The OS now in use - Ubuntu 14.04 LTS] are far from the start of the disk. Your BIOS may not detect them. You may want to retry after creating a /boot partition (EXT4, 200MB, start of the disk). This can be performed via tools such as gParted. Then select this partition via the [Separate /boot partition:] option of [Boot Repair]. (https://help.ubuntu.com/community/BootPartition I really don't know what to do.. :(

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• why is it a risk to clone a LUKS container?

  - by laramichaels

  I recently installed Ubuntu onto an encrypted partition using the LUKS+LVM combination that the 'alternate' installer offers. Now I want to create backups of my HD. From the LUKS FAQ: 6.15 Can I clone a LUKS container? You can, but it breaks security, because the cloned container has the same header and hence the same master key. You cannot change the master key on a LUKS container, even if you change the passphrase(s), the master key stays the same. That means whoever has access to one of the clones can decrypt them all, completely bypassing the passphrases. How can the existence of a perfect clone of my encrypted HD break security if it contains the exact same information as my live encrypted HD? In which sense does keeping updated clones of my LUKS-encrypted HD around "break security"?

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• git changing head not reflected on co-dev's branch

  - by stevekrzysiak

  Basically, we undid history. I know this is bad, and I am already committed to avoiding this at all costs in the future, but what is done is done. Anyway, I issued a git push origin <1_week_old_sha:master to undo some bad commits. I then deleted a buggered branch called release(which had also received some bad commits) from remote and then branched a new release off master. I pushed this to remote. So basically, remote master & release are clones and just how I want them. The issue is if I clone the repo anew(or work in my current repo) everything looks great....but when my co-devs delete their release branch and create a new one based off the new remote release I created, they still see all the old junk I tried to remove. I feel this has to do with some local .git files mistaking the new branch release for the old release. Any thoughts? Thanks.

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• Mount external HD ubuntu 12.10

  - by Luigi Tiburzi

  Although it's an abundantly treated matter, I'm unable to find an answer valid for my needs. I had a 12.04 installation of ubuntu and I decided to install the 12.10. I copied (using GParted) the partition where my system was to an external hd where there is a windows partition. Then I installed the newest ubuntu version and now I want to take back some files (for example my .emacs) from that partition but when I try to mount it, it is not found as sdb and if I mount it from /dev/usb/hddev0 I don't get any output, only a blinking cursor, no errors, no output. I even tried to mount it as an ntfs disk but the result was the same. It's like the hd cannot be detected. So how can I access data to that disk? Could I get them from GParted terminal instead of Ubuntu one? Thanks

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• How to overwrite Ubuntu with Windows 7?

  - by Will Cowled

  So I have a Windows DVD and it works. But when it gets to the part when it says "Upgrade" or "Custom" I click on custom and at the bottom it says cannot install over it because Windows 7 can only be installed on an NTFS drive? I know that Ubuntu formatted my partitions into one big on that's an ext4. What can I do? I know that I can maybe create a 30-50 GB partition that's an ntfs then when I go into windows I can format the Ubuntu one and combine them but I don't know how to make a partition much less make a big partition in the "GParted" program? So any ideas would be very helpful. I know how to do anything with a hard drive using the default program that comes with Windows 7 but I feel like a mouse in a maze when I open GParted.

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• Unable to mount location, Can't mount file

  - by user116008

  I'm a new user to Ubuntu and I have a problem: I had Windows XP in my computer and I had two partitions: C (for system data) and D(for my personal stuff), then, during the Ubuntu installation I chose the Advanced Settings and formated C partition and left D partition intact, went back and chose Install Ubuntu and replace Windows and it installed fine. The problem is that now I open Nautilus and go to Computer, in there it shows my D partition, 640 Hard Disk, but when I try to mount it displays me a message: "Unable to mount location. Can't mount file". I ask you to explain me step-by-step what I need to do because I'm not an advanced user. My computer specs: 2 GiB RAM, Proccesor Pentium(R) Dual-Core CPU E5400 @ 2.70GHz × 2, Graphics Unknow (It's Nvidia GeForce 220 {1GB} or something), OS type 32-bit, Disk 628.0 GB P.S.: My HDD is internal, I'm not using external Hard Drives. Thank You!!! Mike

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• Why do I get a 403 error when accessing my apache server?

  - by nishan

  Im running Ubuntu 12.04 LTS on a system with 2 GB RAM and a 500 GB HDD. My hard drive has 4 partitions: Partition 1 = 40 gb Windows (NTFS, lable = win32) Partition 2 = 320 gb Windows (FAT label = common) Partition 3 = 40 gb Ubuntu (EXT4) I installed apached2. Then, to change its default www directory, I ran gksu gedit /etc/apache2/sites-enabled/000-default and, in the editor, changed the location to /media/common/www. After that I ran these commands in a terminal: chmod 777 /media/common/www chmod 777 /media/common/www/*.* After that I ran: firefox 127.0.0.1/index.php It said: Forbidden You don't have permission to access / on this server. Apache/2.2.22 (Ubuntu) Server at 127.0.0.1 Port 80 Before my changes it was working fine. How can I run my websites?

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• Swap File, Mount point, GRUB2

  - by Mike Green

  Windows 7 with 1gb RAM Hi. I am installing Ubuntu 12 onto a 20gb ext3 partition. I have 100gb free disk space. The install asked me to choose a swap space. Do I have to allocate another partition for the swap space, and if so, what size should it be? I installed without allocating a swap space. Can I allocate a swap space after the install? The install asked me for a mount point. I chose /. Is this okay? I also want to ensure that GRUB2 will be installed within the UBUNTU partition. Is there an option for this on the install? (I will use EasyBCD to select Windows7 or UBUNTU.) Thanks for your help, M...

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• No dual boot menu

  - by Christian Galo

  I formatted all of my disk and installed Ubuntu on my computer. I immediately partitioned, from an Ubuntu live CD, my hard drive, creating an NTFS partition for for Windows. After successfully doing so, I went on to install windows 8.1. After I installed Windows 8 in the new partition and turned off my PC and turned it on again the option to chose which Operating system I wanted to use didn't appear, loading Windows like if Ubuntu didn't exist. How can I have the option to chose which operating system I want to run or at least from which partition to boot from when I start my computer? EVERYTHING IS OKAY WITH MY OPERATING SYSTEM The only thing I need is for ubuntu to appear as an option on the boot menus

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• Where to install bootloader when installing Ubuntu as secondary OS?

  - by HelpNeeder

  I'm trying to install Ubuntu as secondary OS on my laptop. I have Windows 8 already installed on my laptop. Now, I know how to run Ubuntu from USB drive, I created addition partition and formatted it to EXT4. So I'm ready to install. Now, 'Device for boot loader installation:' displays: /dev/sta ATA HITACHI (750 GB) /dev/sta1 Windows 8 (loader) /dev/sta2 /dev/sta5 /dev/sta6 Ubuntu 12.04 (12.04) /dev/stb I tries choosing Ubuntu 12.04 partition but it doesn't even let me to pick which OS to install and goes straight to Windows 8. Which partition I must choose to be able to pick which OS to boot from? Preferably, set up so Windows 8 will be at first place, and Ubuntu on second. Any ideas? I don't want to mess up anything if I pick something wrong.

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• ubuntu is not booting, after dual boot installation with windows 7

  - by Kranthi

  Recently i bought a lenovo u410 ultrabook. It has given along with windows 7 and 4 primary partitions. So to install ubuntu 12.04 i removed one of the primary partition and made it as extended partition. In that extended partition, i allocated memory for the swap and root (/) directory and then installed the ubuntu. After that by using EasyBCD tool, added ubuntu to the boot menu in grub2. So when i try to boot into ubuntu it is showing grub prompt only. From there how can i boot into ubuntu. Thanks in advance

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• How to grant standard users access to disk partitions and flash storage?

  - by JK04

  I have a partition that I need standard users (not administrators)to have read/write access to. However, this partition does not even appear to them as it does to me as an administrator. How can I make it so that standard users can read/write to this partition? It would be nice if they could have the ability to mount it if needed. I have the same problem with removable media - if I have a flash card in the computer, the standard users cannot see this storage media.

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• Can I upgrade Unity

  - by user208455

  Since the bug described here I am moving LTS distros only, however the current LTS is 12.04, and I`ve seen how ubuntu 13.10 looks like, I know that the unity interface is a WOP but, I wanna know is there any possible way to upgrade unity in 12.04? and btw, after that wipeout ,from the post I was reffering to, that sam stupid (to be polite) thing did windows xp, but now I have shortenned the 500GB ntfs partition to 100 GB and added a 100GB ubuntu partition (for /) and a 200+ GB partition for /home and installed ubuntu 12.04 like that (in "something else"). And after a few minor grub issues everything works perfectly, just like it should be

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• Setting up lvm with HDD and SSD

  - by stonegrizzly

  My current hard drive is just about full and rather than just toss it and get a new one (since it works fine), I want to get a new drive and set them both up using lvm. While I'm at it, I also want to get an SSD to install the OS and applications on. This is my plan: Put / on the SSD (one partition) Put /tmp on a ram disk Put /var on a partition on my new drive Put /home on the rest of the new drive and my current drive using lvm. My goals are: Speed up boot time and application launch Minimize unnecessary writes to the SSD Never have to worry about which disk/partition to store my files on. I want the OS & lvm to take care of that Does this make sense? I'm fairly experienced with Ubuntu but I've never dealt with lvm before.

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• How do I move (copy) my entire Ubuntu system to a different hard disk?

  - by boywithaxe

  The HDD I have my Ubuntu installed is about to fail. I would rather not lose 3 years worth of data, customisation and apps. I am looking for a way to move the complete system (SWAP included, because I'm not sure if I can relink the system to a new SWAP partition) to another HDD. But not the complete HDD< only the partition containing Ubuntu, to a partition on a different HDD. Basically I'd like to do what I've been able to do with Norton Ghost for my Windows install. I thought about using Clonezilla but I think I would have issues with GRUB (Especially trying to boot from a different UUID than what is in the conf file). do you know of any way this could be done? PS, my home directory is encrypted but that's not really an issue, because I can work around that. EDIT: changed the explanation to make it clearer

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• How large should I make root, home, and swap partitions?

  - by starcorn

  Hello, I have a laptop with win7 installed. I have now made a 60gb partition which I want to install ubuntu into. The question I have, before I do the installation, is how large each of the root, swap, and home partition should be? I have read some place that root could be as small as 8GB, but isn't that too small? Since I guess beside ubuntu all the softwares installed will reside there as well? And I think I'm going to set my swap to be 2GB large. My main concern is how large should the root partition should be. I'm mainly going to use ubuntu for programming and browse the web.

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• GitHub OS project how to have a good version and a work in progress version

  - by Para

  I have started my own OS application, I am hosting it on GitHub. My problem is that I push changes to the repository from more than one location so sometimes I want to work on it and sometimes I can't always finish something in time but I would still like to push it anyway so I can fetch it later from my other location. I'd like to be able to somehow have a stable version and have the master branch be a 'work in progress'. How do I do this? Is there some button I can push that will take the code from my master branch and make it into a zip file in my downloads tab and call it a version or should I do this by hand? Would it be better to have the master branch be nice and neat and have a separate branch to play with and then merge the two when the time is right? Would this not cause more problems in the merging phase?

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• Is it possible to boot without mounting /home?

  - by Exeleration-G

  I want to backup my /home partition on /dev/sda6 using partclone, a command line utility. To do so, I first have to unmount the partition that I want to backup. Most of the time, this is easy, but /home is used by so many processes that it can't be unmounted without first killing all those processes. So, the thing I'm looking for is a way to boot Ubuntu, without mounting /home, so I can back up the not-mounted /dev/sda6 partition. Is that possible? To be clear, it would be nice if this special boot could be 'one-time-only'. So I'm not looking for ways to change /etc/fstab in such way that /dev/sda6 won't be mounted. That's because that would require me to change /etc/fstab twice each time just to make a backup. I'm aware of the fact that there are other backup solutions available, such as deja-dup. I'd like to use partclone, though.

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