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  • Grub not showing installed kernels

    - by Markus
    Although I have several kernel versions in /boot and having them in my grub.cfg, they are not displayed in the grub boot menu. Running update-grub seems to work, as it puts the kernels in the grub.cfg in /boot/grub. Issueing it gives the following output: Generating grub.cfg ... cat: /boot/grub/video.lst: Datei oder Verzeichnis nicht gefunden Found linux image: /boot/vmlinuz-3.2.0-31-generic Found initrd image: /boot/initrd.img-3.2.0-31-generic /usr/sbin/grub-probe: Fehler: no such disk. /usr/sbin/grub-probe: Fehler: no such disk. Found linux image: /boot/vmlinuz-3.2.0-30-generic Found initrd image: /boot/initrd.img-3.2.0-30-generic /usr/sbin/grub-probe: Fehler: no such disk. /usr/sbin/grub-probe: Fehler: no such disk. /usr/sbin/grub-probe: Fehler: no such disk. done I don't know how to fix that problem. Reinstalling grub via live cd did not help.

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  • How to grub-install ignore specific drive/partition

    - by gsedej
    Is it possible to use grub-install or update-grub to just search on specific disk/partition? (or ignore specific)? I installed Ubuntu 12.04 on my hard drive, but i wished to do some testing on it without harming current installation, so I "rsynced" root partition (the only) to the USB partition (ext4). I did fix /etc/fstab on USB partition. The problem is that when I do grub-install /dev/sdb (usb) GRUB seems to confuse when UUIDs. Whatever I chose in GRUB it always boot from disk. In grub in edit mode I see that in two "UUID" lines are not the same. If I retype UUID from "first" to second "line" it boots from USB (as I wish). Is there any other way than fixing /boot/grub/grub.cfg each time? EDIT: the GRUB generated good when I booted from USB and grub-install from there, but question is still if it's possible ignore drives

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  • How can I customize my bootloader to make it prettier?

    - by Matthew
    I hate how when I turn on the computer it just (after the hp logo, which I hate having also), shows white text on a black background. I'm wondering if there's easy ways to customize this (I'm choosing between Windows 7 and two separate Ubuntu 10.10 installs). I've read a little about some complicated ways to do this, but is there not some simpler ways by installing a package on ubuntu or something? I don't want to hack a bunch of code together to get a simple effect. I'm hoping for actual images and having like the windows 7 logo and ubuntu logo to choose from. Ideas?

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  • Windows 7 won't boot? Tried Boot Repair (dual-boot)

    - by user206870
    I downloaded Ubuntu and installed it so that my computer was dual boot. The first day, Ubuntu and Windows both worked great. Unfortunately, the next day, after messing around on Compiz Config Settings Manager to get the rotation cube, I tried booting into windows 7, and it wouldn't boot. It just goes to the screen where the Windows logo comes up and says Windows 7, and then reboots without even displaying an error message. I tried boot repair and it didn't work, the problem's still there. How can I fix this? PS: here's the link that boot repair gave to me: http://paste.ubuntu.com/6287090

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  • Neverending issues with grub (ubuntu 14.04 on ASUS with Win8 dual boot)

    - by Mariana
    This is the most frustrating issue I have ever run into using Ubuntu and Windows in the same machine. I have an ASUS K46CB, 6GB RAM and preinstalled Windows 8.1 64-bits. I have successfully installed Ubuntu 14.04 LTS, also 64-bits. To do so,I followed this tutorial whenever possible. I only failed on the disable secure boot part: there is no 'Secure-boot' or even UEFI mention in my BIOS! Screenshots from other BIOS of the same model show the option under Boot, but in mine there is absolutely none. Because of this, I cannot boot into Ubuntu. The computer loads straight into Windows. I tried running boot repair, but got an error (i can show the log, but it's pretty long). Does anyone know how to fix this issue? UPDATE I reinstalled Ubuntu. Same problem, goes straight to Window. Boot-Repair informs me that i am using Windows in Legacy mode. It excecuted with no errors this time, but after restarting GRUB was still missing. I can't turn off Secure Boot yet. UPDATE I tried using Boot Repair to install grub on a boot-grub 1mb partition. Still boots straight to windows. I feel like punching something

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  • no wifi after grub 2 crash

    - by Omu
    on ubuntu 10.10 I used StartupManager to set windows 7 as the default boot, also chosen the 1024x768 resolution, 16 bit, time: 3sec, and checked "show splash screen". after the restart there was no GRUB menu at all, windows 7 booted, and in windows the clock was 0:03 instead of 10:03, also the wifi doesn't sees any connections anymore I reinstalled ubuntu 10.10 so the GRUB menu is back, changed the clock back from BIOS, but my wifi doesn't sees any connections in windows nor in ubuntu (I write this from another computer)

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  • Ubuntu fail to start on a dual boot with Windows 7 on Vaio

    - by user94628
    I followed the instructions for the Ubuntu windows installer on my Sony Vaio laptop (model SVT131A11M). Upon restart I was prompt to choose the OS for boot (Win7 or Ubuntu), but then I shut down the machine and from the next boot, every time I choose to boot into Ubuntu, the GNU GRUB terminal appears with a grub> prompt. Now I'm able to boot into Win7, but can't boot into Ubuntu properly. Why does it happen and how come I was able to start Ubuntu successfully the first time?

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  • How do I uninstall GRUB?

    - by ændrük
    A hard drive that I use only for data storage still has GRUB from past Ubuntu installations. How can I remove GRUB from it without harming the rest of the drive's data? Background I occasionally move the data drive between computers with various boot order configurations, so I would like it to be non-bootable in order to avoid having to accommodate it in each computer's BIOS settings. When I power on a computer while only the data drive is attached, the following appears: error: no such device: fdf38dd4-9e9d-479d-b830-2a6989958503. grub rescue> I can confirm from old backups of /etc/fstab that this was the UUID of a root partition that I recently reformatted and which no longer exists. Here's the the data drive's partition table and raw master boot record. Please note that I'm not interested in workarounds that don't answer my primary question. I can think of several ways to work around this issue, but it bothers me on principle that I don't know how to directly resolve it. Every installation procedure should have a counterpart uninstallation procedure.

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  • Screen cuts off part of GRUB on boot

    - by Matthew
    I've recently installed Ubuntu 11.10 on my Windows 7 desktop computer (on a seperate partition) Everything has gone smoothly except when I restart the computer and GRUB's loader screen shows, part of the screen gets cut off.. but once ive selected a boot option and hit enter, the screen readjusts to fill the entire monitor properly. So my question is, is there a way I can correct this ? Kind of annoying not being able to see the full boot option

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  • I can't get grub menu to show up during boot

    - by wim
    After trying (and failing) to install better ATI drivers in 11.10, I've somehow lost my grub menu at boot time. The screen does change to the familiar purple colour, but instead of a list of boot options it's just blank solid colour, and then disappears quickly and boots into the default entry normally. How can I get the bootloader back? I've tried sudo update-grub and also various different combinations of resolutions and colour depths in startupmanager application with no success (640x480, 1024x768, 1600x1200, 16 bits, 8 bits, 10 second delay, 7 second delay, 2 second delay...) edit: I have already tried holding down Shift during bootup and it does not seem to change the behaviour. I get the message "GRUB Loading" in the terminal, but then the place where the grub menu normally appears I get a solid blank magenta screen for a while. Here are the contents of /etc/default/grub # 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=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX=" vga=798 splash" # 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"

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  • Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) after apt-get upgrade

    - by Edward
    I'm using Ubuntu 9.1 server edition, I get this error during boot time after I ran sudo apt-get upgrade when checking my kernel version, uname -r returns 2.6.31-14-generic but when i run dpkg -l 'linux-image*' | grep ^.i I cannot find 2.6.31-14 (only contains 2.6.32*) Following the solution in the thread: Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) doesn't work for me I'm running the commands inside the Rescue mode by booting from the Ubuntu 9.1 Installation Disc Do I need to update my kernel and run update-initramfs + update-grub again? If so, how can I update the kernel? apt-get install any linux-headers/image cannot change the uname -r value Thanks!

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  • Changing the Operating System with only Ubuntu installed

    - by Games Brainiac
    I really wanted to dive into the world of Open Source operating systems, so I downloaded the latest version of Ubuntu (13.10), and installed it on a clean(no operating system installed, absolutely nothing) Lenovo ThinkPad machine. After a few days, I wanted to try out a different Operating System (Elementary OS). I downloaded the ISO file, burned it to a USB, tested that the USB booted from a different computer (I have 2, one is the Lenovo, the other a HP). I was able to get the bootscreen, and everything worked like a charm after I set the BIOS to boot from USB Disk Drive instead of HD. After this, I went back to Lenovo, and tried to open up the boot menu, by pressing F12, so that I could load from a temporary device. To my surprise, nothing but the HD was listed. There was no Optical Drive, No USB Drive, absolutely nothing. So, I thought that these devices were probably disabled. So I went into my BIOS and checked to see what was the case. I saw that all my devices were enabled. USB and all the other devices such as network cable and the rest were all enabled. So, I thought this probably had something to do wit UEFI and Legacy Boot options. So, I made sure that both were enabled. This did not solve the problem either. Again, I got nothing but the option to boot from my Hard Disk. I thought the USB had to be at fault. I tried different ports, but to no avail. Next, I tried with a Live CD, which had Ubuntu on it. This failed too. I simply could not boot from anything other than my hard disk. Okay, so at this point, I was pretty desperate, so I installed Boot-Repair through: sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install boot-repair What this did is lead me to GRUB. Ideally, its just a screen that gives me the option to load from Ubuntu or Advanced Settings. The Advanced settings had nothing but Ubuntu options in it. So, I kept on pressing ESC and that led me to the the grub console, and thats where I am right now with my Lenovo. I've also tried updating the BIOS, but Lenovo only has packages for Red Hat and Windows. So, a dead end there too. Right now, I need to know if there is any way that I can just delete everything from my Lenovo? I want to revert it back to its blank factory condition. How can I achieve this? I have tried to elaborate my problem as best I could. If there is any important information that I've missed out, please do not hesitate to leave a comment. I would have included some screen shots, but BIOS screen shots are a little hard to manage. However, I can provide a camera Image of the boot screen if needed (doing that as we speak).

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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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  • replacing kernel on non-booting ec2 instance

    - by TheToolBox
    So I had an amazon ec2 instance crash during the update to 14.04LTS. Frustratingly, it appears the kernel might be bad (or at least that's what the log below says to me, I could totally be wrong). I'm able to mount the volume to another, working server, chroot the broken volume, and sudo apt-get remove linux-headers-3.MOSTRECENT. Unfortunately though, when I try sudo update-grub, it comes back with /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). What am I missing? Here's the log from the server's attempted bootup: [H[J Booting 'Ubuntu 14.04 LTS, memtest86+' root (hd0) Filesystem type is ext2fs, using whole disk kernel /boot/memtest86+.bin ============= Init TPM Front ================ Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront initialization! error = ENOENT Tpmfront:Info Shutting down tpmfront xc: error: panic: xc_dom_core.c:621: xc_dom_find_loader: no loader found: Invalid kernel xc_dom_parse_image returned -1 close(3) Error 9: Unknown boot failure Press any key to continue... Thanks in advance!

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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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  • 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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  • Dual Boot Windows 8 and Ubuntu

    - by Nick
    My laptop has two hard drives, one 320GB HDD and a 30GB SSD. I installed Windows 8 on the HDD and Ubuntu on the SSD. However, after I installed Ubuntu, Windows 8 did not appear on the boot list. I tried boot-repair, but this didn't help.Here is the output of my fdisk -l: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x6cd9314a Device Boot Start End Blocks Id System /dev/sda1 * 2048 625139711 312568832 7 HPFS/NTFS/exFAT Disk /dev/sdb: 30.0 GB, 30016659456 bytes 255 heads, 63 sectors/track, 3649 cylinders, total 58626288 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x6cd93132 Device Boot Start End Blocks Id System /dev/sdb1 * 2048 207126 102539+ 83 Linux /dev/sdb2 208894 58626047 29208577 5 Extended /dev/sdb5 208896 4112383 1951744 82 Linux swap / Solaris /dev/sdb6 4114432 58626047 27255808 83 Linux Disk /dev/mmcblk0: 3965 MB, 3965190144 bytes 49 heads, 48 sectors/track, 3292 cylinders, total 7744512 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0009c694 Device Boot Start End Blocks Id System /dev/mmcblk0p1 * 8192 7744511 3868160 b W95 FAT32 I also tried sudo grub-update, but that also did nothing.

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  • Booting from USB only

    - by vivek
    I am a newbie on linux and dont understand many things unless given a line by line instructions. I am trying but linux does take some getting used to. I have installed ubuntu from live usb stick. Now I cannot boot my system without the usb being plugged in. There are answers whereby certain commands need to be run. For any command that I run with sudo (prefix) the terminal asks me for a password which I dont know. What do I do? How do I fix it such that the booting happens without usb being plugged in. So far I have just been booting from USB. Please help a recent converted from Windows. Thanks all

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  • Unable to boot OS X after installing Ubuntu 12.04

    - by A G
    I installed Ubuntu 12.04 on my MB (aluminium late 2008). After installing Ubuntu I am unable to boot into OS X. Sequence of events: Install reFit on OS X Install Ubuntu on a partitioned drive. I also installed grub. Now when I boot my MB only the grub menu shows up. When I select OS X under grub I see a black screen for a while and the machine restarts (when selecting OS X 64 bit) or it hangs indefinitely(OS X 32 bit). Could you please help? Link to output of boot info script. http://paste.ubuntu.com/1028017/

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  • How to remove the unwanted entries from the boot menu? [duplicate]

    - by Sen
    Possible Duplicate: Is there a way to remove/hide old kernel versions? When my system boots up, a big list of some 6 options are shown other than the Windows OS option. They are like : Ubuntu 10.04- linux kernel 2.6.32-25 Ubuntu 10.04- linux kernel 2.6.32-25 (recovery) Ubuntu 10.04- linux kernel 2.6.32-26 Ubuntu 10.04- linux kernel 2.6.32-26 (recovery) ...etc Memory Test.. Windows XP Professional How to remove the unwanted entries from this list?

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  • I can not install Ubuntu 14.04 due to some problem?

    - by user285643
    I have installed Window 8.1 on my HP laptop.Now I want to install Ubuntu 14.04,I try to use "Wubi" but when I use it, after installation on window, when my computer restart i have a message "No root file system is defined" I have read some thread here and i got some solution. One of them are "I must format my partition again, using ext4 format and mount on it". I did it by using Gparted in Try Ubuntu mode, but I got another message "/dev/sda contains GPT signatures,indicating that it has a GPT table. However, it does not have a valid fake msdos partition table,as it should. Perhaps it was corrupted--possibly by a program that does not understand GPT partition table. Or perhaps you deleted the GPT table, and are now using msdos partition table. Is this a GPT partition table?"

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  • Installing multiple ubuntu partitions on same machine without corrupting GRUB

    - by LGB
    I had only ubuntu installed on my pc, but I felt like adding another ubuntu (same version) partition so I could have one just for work/study and another one just for personal generic use. I installed it and it worked out okay, but I found I needed more space on the new created Ubuntu partition, so I booted up from the Live CD, and used GParted to move/shrink/grow the partitions as the Ubuntu's tutorials suggested it was pretty straightforward. But in doing all this I messed up with Grub, so when I start my system it shows: error: unknow filesystem grub rescue What would be the easiest way to recover it so I could have both partitions working? Btw, it wouldn't be a problem for me to lose the partitions if it's the shortest/easiest way. Thanks in advance.

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  • Grub can't find device on boot resulting in Grub Rescue

    - by user1160163
    So I have 2 hard drives a HDD 320GB and a SSD 20GB. Before I had Windows 7 on the HDD and Ubuntu on the SSD but wanted to get rid of windows and reinstall a clean Ubuntu on the SSD then use the HDD for storage. So I deleted everything from the HDD and set up the SSD with 18GB ext4 and 2GB Swap and installed Ubuntu on the 18GB ext4. Though now when I boot up I get "Error: No such device Grub Rescue" I have a live USB and I ran the Boot Repair following these instructions - grub rescue after install of Ubuntu 12.04 (dual boot) - it says successful though still have the same problem. This is the given URL from Boot Repair - http://paste.ubuntu.com/1257988/ Thanks for any help given.

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  • How to boot into Ubuntu after installing into a pre-installed Windows 8 pc?

    - by xVerified
    I recently just installed Ubuntu 13 from a USB drive. I have/had Windows 8 64 bit on my desktop computer. When I restart and boot my computer, there is not an option that allows me to choose Ubuntu, it goes straight to Windows 8. I understand this is a common issue. However, my main question is, how do I get to even GO INTO Ubuntu after it's installed? I don't mind booting into Windows 8 at first, but how can I even choose to see Ubuntu now that it's installed?

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  • Errors with linux-image-3.8.0-36-generic and GRUB

    - by user285239
    OS: Ubuntu 12.04 LTS Problem 1: When installing anything (or updating) it always ends with this error: Errors were encountered while processing: linux-image-3.8.0-36-generic linux-image-3.8.0-38-generic linux-image-generic-lts-raring linux-generic-lts-raring Problem 2: When installing or updating stuff it opens some grub files and halts execution until I close these grub files. See screenshot below. Grub files + terminal window (screenshot) Pastebin with terminal output while trying to install something I should mention that I don't known if these two errors are related, but it is a fact that every time I try to install something or run an update both of the above errors pop up. I couldn't find anything of interest in the logs I looked at (probably because I don't know what/where to look), but tell me if you need me to upload something. Edit 02 june. This is the output from lsb_release -a kasper@ubuntuRW:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.4 LTS Release: 12.04 Codename: precise

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