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• Upgraded from 11.4 to 11.10, There was an error, now the system won't initiialize

  - by Eric

  This morning the system gave me a message that my Version (11.4) was no longer supported, and I took the 'upgrade' option (- 11.10). While installing the various components I encountered a message to the effect that the there was an error and the system may have become unusable. Among the messges: E:Sup-process /usr/bin/dpkg received a segmentation fault...returned an error code (1). I was given an option to do several things, one of which seemed to mean that it would attempt to roll back to the previous version (the default), which I took. After the process ran it said the upgrade process had finished, but there were errors. I attempted to initialize a console so I could enter ubuntu-bug update-manager /var/log/dist-upgrade, per the instructions I received when I received the error message, but the console failed during initialization. I restarted the machine, and the screen has stopped with the following contents: * Starting bluetooth * Stopping save kernel messages * Starting CUPS printing spooler/server * PulseAudio configured per-user sessions saned disabled: edit /etc/default/saned $starting up Cisco VPN daemon *Starting anac(h)ronistic cron *Stopping anac(h)ronistic cron Each of these steps followed by [ OK ] What are my options? Any help appreciated!

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• Wine causes twin view to break

  - by deanvz

  I have endlessly been playing around with the Nvidia X Server settings and changing my xorg.conf file to try and work for me and on most days its fine. In each instance I get it working for a while and then this morning the most bizarre thing happens. The moment I open any type of Wine program (which never use to be a problem) my Twin View setup disappears and am left with mirrored displays. I try and change the settings in the Nvidia driver, but its not interested and the screens remain mirrored. I have a work around. Restart my pc... Below are the contents of my current xorg.conf file. # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 295.33 (buildd@zirconium) Fri Mar 30 13:43:34 UTC 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "LG Electronics W1934" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce 9400 GT" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "TwinView" "1" Option "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1: nvidia-auto-select +1440+0" SubSection "Display" Depth 24 EndSubSection EndSection

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• Finding the median of the merged array of two sorted arrays in O(logN)?

  - by user176517

  Refering to the solution present at MIT handout I have tried to figure out the solution myself but have got stuck and I believe I need help to understand the following points. In the function header used in the solution MEDIAN -SEARCH (A[1 . . l], B[1 . . m], max(1,n/2 - m), min(l, n/2)) I do not understand the last two arguments why not simply 1, l why the max and min respectively. Thanking You.

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• Proper XAML for Windows 8 Applications [closed]

  - by Jaapjan

  Traditionally, my programs do their work in the background and when I do have to make an interface for some reason, they often do not need to be complex which means I can use a simple Windows Forms or console application. But lets be honest-- Windows Forms? That is so ... ancient! Instead I have been looking at Windows 8. A new interface, different, maybe better-- but fun to give a try. Which means XAML. Now, XAML isn't all that hard in concept. Panel here, button there-- A smattering of XML. My question in short: Where can I find resources that teach me how to write good XAML code for Windows 8 applications? The long version: How do I combine XAML constructs to achieve effects? Horizontal panels with multiple sections you can scroll through with your finger, the proper way? How should you use default style resources Windows 8 might give you by default? How do I properly create a panel with user info on the right? Left aligned stackpanels with embedded dockpanels? Yes? No? Why?

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• Bluetooth connectivity

  - by Viniketa

  computer: Samsung All in One PC OS: Windows 7 (up-to-date) BT Radio: Broadcom I have Bluetooth speakers I have successfully used with the system in the past. In fact, I had them set as default speakers so audio would transfer when I turned them on. No longer. Now, they show as 'disconnected'. Asking for connection gives no response. Option to set as default is greyed out. Bluetooth view utility gives an error of 10049 when I try to connect (supposedly, the means an invalid device address). I uninstalled the device and re-installed. No help. Any advice? Thanks in advance.

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• Random compositing lag

  - by user1020567

  My laptop specs: 512 mb of RAM, out of which 64 mb are shared with an integrated GPU - ATI Radeon Xpress 200 M. Intel 1,6 Ghz Celeron M single-core processor. I've spent months trying to figure out why compositing and effects sometimes lag on any distro I try. Now I've come to realise that no matter what drivers I try (the default ones work for me on pretty much any linux) compositing lag is random. When I used Ubuntu 10.10, for example, sometimes window compositing would lag and sometimes it wouldn't. The PC is able to render those effects so hardware is not the problem. It's completely random and unpredictable - sometimes when I turn on the computer the effects lag horribly and sometimes it's completely smooth. I've also checked startup items and there doesn't seem to be any unnecessary entries. I also tried building my own OS with Arch Linux and the problem persists there, therefore I can only assume that it's a driver issue of some sort. By default there are lots of drivers supplied with linux distributions. Could it be that they're in the way? The ones that I need are ati/radeon (or both? What's the difference between them?) and there seem to be a lot of others... What should I do?

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• Subscribe/Publish Model in Web-based Application (c#) - Best Practices for Event Handlers

  - by KingOfHypocrites

  I was recently exposed to a desktop application that uses an publish/subscribe model to handle commands, events, etc. I can't seem to find any good examples of using this in a web application, so I wonder if I am off base in trying to use this for web based development (on the server side)? I'm using asp.net c#. My main question in regards to the design is: When using a publish/subscribe model, is it better to have generic commands/events that pass no parameters and then have the subscribers look at static context objects that contain the data relevant to the event? Or is it better to create custom arguments for every event that contain data related to the event? The whole concept of a global container seems so convenient but at the same time seems to break encapsulation. Any thoughts or best practices from anyone who has implemented this type of model in a web based application? Even suggestions on this model out of the scope of my question are appreciated.

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• Gentoo+urxvt+terminus: How do I change font version?

  - by gaidal

  In my Debian installation I can type extended ASCII characters such as åäö by default using the terminus font, however in Gentoo I can't get it to work so far. Nothing happens when I hit those keys, like in this thread: Missing glyphs in Terminus font, how to setup a fallback font ? But in this case I know terminus supports those characters in at least some of its versions, since it's works in Debian. So what I want is to find out how to see and choose which of the many different terminus font files is being used. I set the font in the same way on both Debian and Gentoo, using URxvt*font: xft:terminus:size=xx in .Xdefaults. Both systems use en_US.UTF-8 as default locale.

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• All of my shortcuts open same program

  - by Niyi

  My Shortcuts on Windows7 was just opening VLC, and I right-clicked one of them to change the default program and it eventually opened. But because I chose for it to always open in the default program, all shortcuts did the same - they opened that same application. Apparently I had associated shortcuts to that application. How do I re-associate shortcuts to act as a shortcut to their own applications? Please help me understand the way shortcuts work in other to rectify the problem. Thanks. Niyimagic

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• Setting console resolution in Ubuntu Server 13.10 within VMware

  - by user205625

  I've completed an install of Ubuntu Server 13.10 within VMware and am running into a problem configuring the console (non-graphical) resolution. When I was running Ubuntu Server 13.04, I ran into the same problem... posted the question here, which I later solved by editing /etc/default/grub thus: GRUB_CMDLINE_LINUX_DEFAULT="splash vga=789" I then ran sudo update-grub, sudo reboot and 13.04 stuck in a larger-size console mode... just what I wanted. BUT when I run the same commands in 13.10, during the reboot it changes to the new screen-res, BUT the screen stays black and I can't interact with it. I power down the VM, go back to a previous snapshot, and try again... and again. Since the hwinfo package is no longer available, I can't run sudo hwinfo --framebuffer to see what options are available. Ideas anyone? Here are the uncommented settings in my /etc/default/grub file at this moment: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT="splash" GRUB_CMDLINE_LINUX="find_preseed=/preseed.cfg" GRUB_DISABLE_LINUX_RECOVERY=false GRUB_GFXMODE=800x600

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• Documents stored on separate internal drive, Ubuntu doesn't notice on startup

  - by PlanoAlto

  My machine has Windows 7 Ultimate x64 and Ubuntu 12.04 LTS running side-by-side on a single hard drive with GRUB bootloader, each with 500 GB storage. I keep my personal documents on a separate 1TB hard drive so they remain isolated from any changes I make to the OS drive, but when Ubuntu starts it does not seem to notice my documents drive. While I've installed and worked with Ubuntu 12.04 Server x32 before, using it as a desktop OS is new to me. I use my documents drive for all of my personal data, including wallpapers and music, so it is imperative that Ubuntu recognize it on startup. Concerning the two specific examples: Ubuntu loads with the default blue-colored desktop instead of my desired picture of the spectacular Carina galaxy. When I right-click the desktop and select "Change Desktop Background", it wakes up from its amnesia and loads the proper background. As for my music, Rhythmbox defaults to an empty library upon reboot, forcing me to reload the settings manually each time. This gets quite tedious because I certainly can't work to my full potential without my music. The second thing I would like to address is making Ubuntu point the documents directories in ~ to their appropriate counterparts on the 1TB documents drive. I realize that this question is not new, but when I create the symbolical links, they established themselves inside the directories and did not convert the directories themselves into symbolical links. I also prefer not to move the files themselves from their current location on the 1TB drive. I believe this would also help the Rhythmbox library problem as well considering it's a default directory for the music player. Excerpt from fstab: proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sdb6 during installation UUID=057ac83e-76ad-460d-86e5-b6d46e9b1d80 / ext4 errors=remount-ro 0 1 # swap was on /dev/sdb7 during installation #UUID=1183df90-23fc-44e4-aa17-4e7c9865d5cb none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 That's enough content for one question. I really like the Ubuntu experience so far since it doesn't treat me like an idiot out of the box (can't say the same for Windows) so I can't wait to hear from the community! Thanks for your help in advance.

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• How to set a theme for Windows XP to use before a use logs in?

  - by Ivan

  If Windows XP "welcome screen" is disabled (manually or by joining a domain) an ordinary window is used to log-in (like it was in Windows 2000). This window is styled with default Windows XP "Luna" theme (blue window title, etc). All theme customizations (including turning them off at all to use plain Win2000/98 window style) are normally applied after a user logs-in. How can I alter this? I'd like either to turn off visual styles at all or to apply "Zune" styling to BEFORE a user logs in (and it'd be good to use the same settings as default for new users created).

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• Automate opening HTML and printing to PDF

  - by craigpatik

  I need a way to automate the following process in Windows 7: Open an .html file in Internet Explorer Print to PDF Save the PDF with a patterned file name (i.e., original_name_YYYY-MM-DD.pdf) Ideally, I could drag and drop several files or open a whole folder of files at once and a PDF would be created for each one. A command line solution is also acceptable. The files have to be opened in the browser because parts of the page are rendered with JavaScript on page load. In other words, if you simply right-click on the file in Explorer and choose "print", the resulting file is not the same because the JS didn't run. If it helps, Internet Explorer can be set as the default browser, and a PDF printer can be set as the default printer.

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• How can I disable the purple bootloader splash at boot?

  - by wim

  This question has been answered before, but neither of the methods in the accepted answer worked for me on 11.10. First I tried editing in /etc/default/grub, and then running sudo update-grub. But after that I still got a blank, plain, purple screen while the kernel is loading. The screen has no boot options, and it obscures those dmesg that I want to see going in the terminal. Next I tried removing the plymouth-theme-*, but that just broke my gnome-shell theme looks, and the purple screen still remains. I have also tried configuring it with startupmanager package, but nothing seems to get rid of that darned purple splash. here are the contents of my /etc/default/grub file: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT="0" GRUB_HIDDEN_TIMEOUT="0" GRUB_HIDDEN_TIMEOUT_QUIET="true" GRUB_TIMEOUT="0" GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`" #GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) # GRUB_TERMINAL="console" # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE="640x480" # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID="true" # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" GRUB_DISABLE_OS_PROBER="true"

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• What Part of Your Project Should be in Source Code Control?

  - by muffinista

  A fellow developer has started work on a new Drupal project, and the sysadmin has suggested that they should only put the sites/default subdirectory in source control, because it "will make updates easily scriptable." Setting aside that somewhat dubious claim, it raises another question -- what files should be under source control? And is there a situation where some large chunk of files should be excluded? My opinion is that the entire tree for the project should be under control, and this would be true for a Drupal project, rails, or anything else. This seems like a no-brainer -- you clearly need versioning for your framework as much as you do for any custom code you write. That said, I would love to get other opinions on this. Are there any arguments for not having everything under control? Is this sysadmin a BOFH?

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• How do I setup PHP locally on Windows 7 with Tomcat 7 already installed?

  - by James Drinkard

  I have Windows 7 64 bit running on my laptop with Tomcat 7 installed to run my java programs using Eclipse. Now I need to be working with PHP and as I went to install it, I read you need to install Apache Web Server first, before installing PHP. Then I read where you can run PHP under Tomcat or run PHP on Apache Web Server while still using Tomcat, if you reset the default port on one of them as Tomcat and Apache Web Server would use the same ports by default. What is the best way to do this? I don't want to was lots of time getting stuck on configuration issues.

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• how to get bash prompt on login

  - by user419534

  When I connect to remote machine uisng ssh, by default it is not on bash prompt. To get bash prompt by default on login I did as below by create .cshrc file in my home directory if ($?prompt) then setenv SHELL /bin/bash exec $SHELL -login endif It works well and I am getting bash shell but I have another file as .bashrc in my home directory which gets executed when i run bash explicitly and I have done lot of customization in this file as per my requirement. Is it possible to get my .bashrc executed somehow from .cshrc or some other way? For example I need to go connect to host B from host A, I do this From A - ssh B this brings host B but not with bash prompt. To get bash prompt I created .cshrc as mentioned above but my above code snippet does not call my .bashrc script.

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• Wallpapers of only some users being dynamically loaded in LightDM

  - by Kazark

  As this answer explains: Ubuntu 12.04 Unity greeter has introduced selected user dynamic background, that means that when selecting a user from the available users list the background will change to reflect the selected user's desktop background. However, I am puzzled, because in my experience this isn't consistently true. On one of my family members' computers, where there are three users, only one of the users' background shows in LightDM. None of the users are newly created. The user whose background is showing has a custom background; one of the users whose background doesn't show also does; and the other one who doesn't has the default switching wallpaper set. It is not a clean install but has been incrementally upgraded from about 8.04. Any idea what could be happening? This is a similar question, though we're also having the opposite problem (default wallpapers not showing). (I do not have access to the computer mentioend above at the moment; when I do I will use some of the criteria given there to analyze the problem further.)

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• Team Foundation Server– Debug symbols(pdb files) generated in Release build? Fix it.

  - by Gopinath

  Yesterday I setup TFS for my .NET playground website to implement continuous integration and deployments. After a successful build I noticed that debug symbols(pdb files) were generated even though TFS is configured to build in Release mode.  After a bit of analysis its turned out to be the behavior of TFS to generate debug symbols (pdb files) until we pass the attribute DebugType = None. Here are the steps to pass DebugType parameter to MSBuild of TFS Go to Team Explorer Select Build Defintion >> Edit Build Definition Switch to Process tab Navigate to Advanced Section and locate MSBuild Arguments Add the following: /p:Configuration=Release /p:DebugType=none

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• Why does IIS refuse to serve ASP.NET content?

  - by Michael Haren

  My Windows Server 2003 Std server refuses to server ASP.NET content. It serves regular html just fine but anything .net, even a one line html file with an ASPX extention fails silently. Things I've tried: Nothing in the event log or IIS WWW logs when it fails. Fiddler shows no response I reinstalled .NET with C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727aspnet_regiis.exe -U C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727aspnet_regiis.exe -I I give obscenely high permissions on everything I can think of (full control, read, write, etc.) to all possibly relevant users (IUSER*, ASP.NET, etc.). I confirmed that ASP.Net v1 and v2 Web Service Extensions are "allowed" in IIS Confirmed that the Server Manager had IIS and ASP.Net roles enabled Again: this is the scenario: http://localhost/Test/Default.htm <-- Works great! http://localhost/Test/Default.aspx <-- Bombs silently with no message at all Any guidance will be much appreciated! Solution: I reinstalled per the instructions below and it works now. Thanks all!

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• Several classes need to access the same data, where should the data be declared?

  - by Juicy

  I have a basic 2D tower defense game in C++. Each map is a separate class which inherits from GameState. The map delegates the logic and drawing code to each object in the game and sets data such as the map path. In pseudo-code the logic section might look something like this: update(): for each creep in creeps: creep.update() for each tower in towers: tower.update() for each missile in missiles: missile.update() The objects (creeps, towers and missiles) are stored in vector-of-pointers. The towers must have access to the vector-of-creeps and the vector-of-missiles to create new missiles and identify targets. The question is: where do I declare the vectors? Should they be members of the Map class, and passed as arguments to the tower.update() function? Or declared globally? Or are there other solutions I'm missing entirely?

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• Routing between two networks on linux?

  - by gGololicic

  I got stuck with one problem I cant find solution. I have linux pc with two NIC. first nic (eth1) is connected to public ip (probably switch or whatever, doesnt really mater) so eth1 is connected to wan and another eth0 that I connected to switch and make it a lan nic. configuration: eth1 ip address 88.200.1xx.xxx //xxx's are cuz of security reasons eth0 ip address 192.168.1.1 wan ------ [eth1 (linux PC) eth0]<----[switch]<---- [eth1 (PC1)] Now I want to connect this two networks, so PC1 can access linux PC and wan. I think I know how to do it but I cant confiugre it right. This is what I tried: I turend on ip forwarding (for sure) I set eth1 default gw to the right ip on the wan I tried to set eth0 default gw to the same ip (but i couldnt) What or how can I do this, I was trying with linux route command, but I got stuck. Please help.

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• Cannot start IIS on XP64 Professional

  - by headsling

  I have enabled the iis components for the first time on this machine, from control panel-add software-windows components, and rebooted. When I attempt to start the "Default Web Site" (which shows as 'Default Web Site (Stopped)' ) from inetmgr nothing happens.. no errors, nothing in the event log. Regmon and Filemon show no obvious errors. I've confirmed that nothing is running on port 80 and have tried changing the local port (8080, 8081 etc.,) with no effect. Further info -- I have removed the install, rebooted, added it back in, rebooted ... still not working. I have visual studio 2008, SQLServer 2008 installed.

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• IIS App Pool Identity Internet Settings

  - by Programming Hero

  How does an IIS App Pool determine its Internet Settings? I'm specifying a custom identity under which to host a .NET web application, a service account that is part of our Active Directory domain. When the application runs, it needs to make HTTP requests to other servers. This action causes it to read web and proxy settings from some location, but I can't understand where it goes for this information. Does it look: At the default account's settings on that box? At the default profile on the AD server? Its own local/roaming profile? A combination of the above? Somewhere completely different?

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• Booting off a ZFS root in 14.04

  - by RJVB

  I've been running a Debian derivative (LMDE) on a ZFS root for half a year now. It was created by cloning a regular ext4-based install with all the necessary packages onto a ZFS pool, chrooting into that pool and recreating a grub menu and bootloader. The system uses an ext-3 dedicated /boot partition. I would like to do the same with Ubuntu 14.04, but have encountered several obstacles. There is no Trusty zfs-grub package The default grub package doesn't have ZFS support built in. I found a small bug in the build system responsible for that (report with patch created) and built my own grub packages. The built-in ZFS support is dysfunctional, it does not add the proper arguments to the kernel command line I thus installed the ZoL grub package I also use on my LMDE system, which does give me a correct grub.cfg However, even with that correct grub.cfg, the boot process apparently doesn't retrieve the bootfs parameter from the ZFS pool; instead the variable that's supposed to receive the value remains empty. As a result, initrd tries to load the default pool ("rpool"), which fails of course. I can however import the pool by hand, and complete the process by hand. If memory serves me well, I also had to disable apparmor, to avoid the boot process from blocking after importing the pool. Am I overlooking something? Just for comparison, I installed the Ubuntu 3.13 kernel on my LMDE system, and that works just fine (i.e. the identical kernel and grub binaries allow successful booting without glitches on LMDE but not on Ubuntu).

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