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• Ubuntu 12.10 update doesnt boot. (please help)

  - by Hugtrw

  my name is Anthony. I updated to 12.10 and it the OS will not load accept in "pae" under advanced options. I used the boot repair cd, the only thing that workds is the monodeset option in the kernel and the graphics are terrible, mouse disappears and unity will not boot. Ubuntu 12.04 Runs great, on a clean install of 12.10 Ubuntu 12.10 wont even load to install unless under monodeset. I get left a termial like screen with just a bilking bar. Im running a HP Compaq NC6400 Laptop, Ubuntu 32-bit, 2gb ram.

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• After installing Ubuntu I can't boot Windows 8 anymore

  - by Gian Luca Scoccia

  I just bought a new laptop (a lenovo ideapad Z500) and it came installed with Windows 8. I wanted to have Ubuntu on it too, therefore I resized the Win8 partition from the control panel and installed Ubuntu on the free space I created. Ubuntu works perfectly, Windows does not load anymore... I tried the recommended repair with Boot-Repair but it did not fix, now I get a "Windows boot loader failed to start" on startup and then I get the GRUB screen. The partition summery created by Boot-Repair is here: http://paste.ubuntu.com/1444837/. How can I fix this? Thanks in advance for your help.

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• I need help with Grub and restoring Windows?

  - by Bob Tahog

  I started out with Windows XP and then I installed Zorin (a sub distro of Ubuntu) and then I installed Ubuntu. This was working great. Then I installed Windows 8 on yet another partition and couldn't get into my other OSs. I asked my tech teacher at school how to fix it and she said just clear the partition that I installed Windows 8 on, so I booted onto a live version of Ubuntu and cleared the Windows 8 partition. Okay then I rebooted and it still went into Windows 8 for some reason. So I got back onto live Ubuntu and it turns out Windows 8 partition didn't clear for some reason so I did it again (and I'm positive it was the Windows 8 partition). I still couldn't fix grub but I needed something out of my XP partition so I mounted it on the live Ubuntu and now all the XP partition have are the folders 'Boot', 'Recovery', 'System Volume Information', 'temp' and the files 'bootmgr', 'BOOTNXT', 'BOOTSECT.BAK' and 'Recovery.txt'. Anybody know how to fix this or what I did wrong? Also, if I try booting from my hard drive it shows the Windows and says 'preparing automatic repair' then 'Diagnosing your PC' then restarts. Any and all help is greatly appreciated.

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• Mouse stopped responding after installing Ubuntu Server

  - by Danijar

  It was 2 operating systems on my machine, Windows 7 and Ubuntu Desktop 12.04, both 64bit version. All works well, firstly I installed Win, then the Desktop version of Ubuntu, lasts's GRUB rewrites windows's boot and of course added it as a variant to load. Yesterday I wish to play with Ubuntu Server 12.04, and install it as a third operating system. During the installation Server's GRUB seems to rewrite that which installed earlier (background color became black, was purple). Firstly, newly installed GRUB generates me overmuch load options for Ubuntu Desktop, by two for each kernel version (normal and recovery modes). OK, it's bearable, but most thing, that the mouse on this machine is totally stops responding, regardless which operating system I choose to load. Hope somebody help me. Thanks in advance!

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• Update GRUB to reflect changed partition location

  - by soandos

  I currently have 3 partitions: Windows, Ubuntu, and swap. I want to move my windows partition by about 20GB. When I try to do this in GParted, it tells me that this will mess up GRUB, and that there is a page that can resolve these issues. However, this page does not actually mention my issue. I am not moving my boot partition (Ubuntu). How can I force GRUB to look for operating systems that are on the drive? I know that this is possible, because when Ubuntu was installed it found Windows without any issues. Additionally, if I create a copy of a partition, how can I add that to GRUB (I assume it will be the same command as above, but if not, what would it be)? Note: OS prober is mentioned here but it doest not list how to use it, or where to find it.

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• Ubuntu 10.04: boot error for custom compiled kernel - gave up waiting for root device

  - by atharva

  I have installed lucid on my Lenevo Laptop (Y 410 series , x86 platform) and it is working fine. Now I have compiled kernel 2.6.37 downloaded from the kernel tree. I followed usual procedure of compiling kernel (make menuconfig, make, make modules etc). Then I created the initrd image using mkinitramfs and updated my grub using update-grub command. update-grub detects the initrd image of the compiled kernel. However when I boot from this kernel it gives me following error: Gave up waiting for root device. Common problems: -Boot args (cat /proc/cmdline) -Check rootdelay= (did the system wait long enough?) -Check root= (did the system wait for the right device?) -Missing modules (cat /proc/modules; ls /dev) ALERT! root=UUID=/... does not exist and then it falls onto initramfs prompt. I have tried following solutions discussed in different Ubuntu forums: disable uuid and point root=/dev/sda8 (sda8 is where my kernel image resides (both default kernel and compiled one) from /etc/default/grub compile kernel using CONFIG_DEVTMPFS=y suggested here Still I am unable to boot from the compile kernel. Could someone please suggest me the solution?

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• No sound Ubuntu 12.04 through HDMI

  - by MikeMan

  Specs: Asus G73JH i7/720; ATI Mobility 5870 I have read through a lot of threads on getting HDMI sound to work and non of them have fixed my issue. Granted I am very new to Linux and know only the GUI aspect of what it does from finding similarities that Windows 7 has. I would like to become a Linux Power User and I figured this would be a good step to get started. I was able to successfully install my graphics driver and it shows in use. I connect the HDMI to my HD TV and I get no sound. I don't care about auto switch for sound, that would be great but not necessary. I just want my sound to work through the HDMI. What I have tried: Changed GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1" pact set-card-profile 0 output:hdmi-surround Failure: no such entity Sound Settings: Right-click Sound indicator ? Sound Settings ? Output Tab, and set Digital Output (S/PDIF) Built in Audio Speakers Built in Audio I only get 2 settings. If I right-click the area below those 2 in the "play sound through" box, I get no "show hidden devices". I am also doing all this with the HDMI connected to eliminate any possibility for error.

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• 12.04 hangs on shutdown/reboot

  - by Wharf Rat

  I'm having the same problem noted here, and when I tried the first fix I found that my /etc/default/grub was empty. I'm willing to try this solution, but I don't know how to remove those drivers. In addition, I'd like my graphics card to be running at optimum efficiency. For now, sudo reboot and sudo shutdown -h nowseem to be working (others have reported that they may only work temporarily), but I don't wish to open a terminal and type my password every time I want to turn my laptop off. What to do?

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• Ubuntu 12.10 installation. Hit or miss Booting

  - by Robert

  I just recently downloaded and installed Ubuntu 12.10. I also completely wiped the laptop. The Ubuntu OS will only boot part of the time but never on the first time. Always, the first start up will automatically go to a purple screen and stay there. At first I waited for 45 minutes and nothing changed. Once I held down the power button to turn it off, I turned it back on to see the Asus screen followed by the grub menu. I can select "Ubuntu" and then there is a white box blinking in the top left corner. Then, it will either keep blinking or transfer to the Ubuntu loading screen(everything works fine if it gets to the loading screen). This has never happened before with prior versions of Ubuntu. Any ideas are helpful. Thanks!

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• 12.10 Grub-customizer error

  - by SteveK

  I am trying to use grub-customizer in 12.10 which ran in 12.04. I now get error grub-mkconfig couldn't be executed successfully. error message: Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.5.0-18-generic Found initrd image: /boot/initrd.img-3.5.0-18-generic Found linux image: /boot/vmlinuz-3.2.0-32-generic-pae Found initrd image: /boot/initrd.img-3.2.0-32-generic-pae Found linux image: /boot/vmlinuz-3.5.0-18-generic Found initrd image: /boot/initrd.img-3.5.0-18-generic Found linux image: /boot/vmlinuz-3.2.0-32-generic-pae Found initrd image: /boot/initrd.img-3.2.0-32-generic-pae Found memtest86+ image: /boot/memtest86+.bin Found memtest86+ image: /boot/memtest86+.bin Found Windows Recovery Environment (loader) on /dev/sda1 Found Windows 7 (loader) on /dev/sda2 I have removed and reinstalled it to no avail. steve@steve-Ubuntu:~$ grub-mkconfig --version grub-mkconfig (GRUB) 2.00-7ubuntu11 I also noticed that file device.map does not exits but in other forums read that it is not in 12.10. Help please

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• How to make grub stop appearing every time I boot?

  - by Justin Riddiough

  I'm using Ubuntu 12.04 and grub selections appear each time I boot. This happens on both of my computers. I have tried editing the /etc/defaults/grub to use default, to use the 0 entry, and ran the update on it. But nothing seems to solve the problem. (showing uncommented lines) $ sudo nano /etc/default/grub 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="" $ sudo update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.2.0-25-generic-pae Found initrd image: /boot/initrd.img-3.2.0-25-generic-pae Found linux image: /boot/vmlinuz-3.2.0-24-generic-pae Found initrd image: /boot/initrd.img-3.2.0-24-generic-pae Found memtest86+ image: /boot/memtest86+.bin No volume groups found done

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• Why does my screen blank out for the duration of the Grub boot menu?

  - by hushs

  Upon booting, when I should see the GRUB menu, my monitor simply says: "No optimum mode. Recommended mode: 1600*1200". If I wait for a short while, Ubuntu starts to boot and it reaches the desktop. So I guess there is no video signal during that time, there's the grub menu but I cant see it and after the wait time everything is fine. I have the same problem when I log out for a short moment, before the log in screen is reached. and this also happens when i shut down ubuntu. The VGA is an onboard NVIDIA GeForce 7025.

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• cant boot with graphics in uefi

  - by user205996

  I really searched for information to this problem but none of the guides or threads on forums have helped, either i cant search or this havent come up. No nomodeset, forcevesa, turning brightness up or anything have worked.... I bought the laptop with ubuntu 13.04 preinstalled, bumblebeedrivers were on it but primusrun broke on the ubuntu 13.10 update. Decided to reinstall ubuntu and install windows at the same time, so now I got windows up and running from uefi and have installed ubuntu 13.10, grub works for windows and everything seems like normal. But when I try to boot ubuntu i cant manage to boot into anything else than failsafe rootterminal. Screen just go black or i have a blank terminal flashing i upper left corner.... Dont know anything about X configuration or what to do. If anyone has an idea please let me know. Laptop: Clevo w230st intel i7 haswell intel hd4000 (?) nvidia gtx765m

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• Full brightness and keyboard backligh at boot

  - by joelalmeidaptg

  I own an Asus N56VZ, and each time I start Ubuntu (13.10 and prior versions) my screen brightness and keyboard backlights reset their values to the max. Ubuntu doesn't save my settings on reboot. I was wondering if someone could help me with this? It is horrible when, at night, I turn on my computer - it is like looking directly to the sun, and it hurts my eyes. I tried googling and none of the pages I found actually helped. I think my issue might be grub-related. I have a dual-boot with Windows 8.1, so before I start my computer I see grub to choose my operating system. My screen starts at full brightness as soon as I reach grub. Maybe he is making the OS forget about my last values, overriding it with its? Does someone knows how to solve this? Thanks in advance :) PS: I'm using bumblebee with Nvidia driver 304, but this issue existed before I installed it.

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• No grub selection after installing kernel Ubuntu 14.04

  - by CPJ

  I have installed a new kernel on my system which can be found by grub but when I restart I can only select the old kernel. Things I tried in other threds with similar problems didn't help. sudo update-grub gives Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.15.0-031500rc2-lowlatency Found initrd image: /boot/initrd.img-3.15.0-031500rc2-lowlatency Found linux image: /boot/vmlinuz-3.15.0-031500rc2-generic Found initrd image: /boot/initrd.img-3.15.0-031500rc2-generic Found linux image: /boot/vmlinuz-3.13.0-24-generic Found initrd image: /boot/initrd.img-3.13.0-24-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin done However, afer a reboot I can only choose the 3.13 kernel. Any ideas what happened? I I have a full encrypted hard drive so maybe I have overseen something while installing the new kernel to get this work? The grub config file is GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_ENABLE_CRYPTODISK=1 Any ideas? Thanks.

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• How to force update-grub to use UUID?

  - by user276851

  When I run "update-grub", the file "grub.cfg" will contain lines like this. menuentry 'Ubuntu...' { ... linux /boot/vmlinuz... root=/dev/md124 ... ... } For the line of linux, is it possible to let it use UUID? Like, linux /boot/vmlinux... root=UUID=xxx Right now, every time after I do update-grub, I have to manually edit the line to use UUID. Otherwise, the boot will fail. Thanks for the help.

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• "BAD idea" warning when trying to recover Grub, after Windows removed it

  - by Shazzner

  Tried sudo grub-install on sda1 but it complained about being a BAD IDEA. I had to install windows for a work related issue so I used a separate disk (I had used it for ubuntu on this computer, but bought a bigger disk so installed ubuntu on that and left the old one in in case I needed an old file). Windows installed fine but overwrote Grub. So if I choose the Ubuntu disk to boot first in BIOS I get a blank screen. I googled and followed this advice: https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows However, when I get down to this section: sudo grub-install --root-directory=/media/0d104aff-ec8c-44c8-b811-92b993823444 /dev/sda1 I get this: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea… --recheck does nothing. Any ideas?

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• error:unknown filesystem grub rescue help

  - by Ridvan Çoban

  I'm trying to install ubuntu on my hdd which doesnt contain any operatin system, mbr or grub. (it has 3 partitions, 1st includes my data on ntfs file system, second is linux swap now, and third ex4 filesystem) Of course i don't want to lose my data on ntfs partition. Anyway i installed ubuntu on ex4 filesystem, selected sda as device for bootloader (not sda1,2 or 2). But i got error Error:unknown filesystem Grub rescue I tried ls command. It gives (hd0) , (hd,msdos1), (hd0,msdos2) and (hd0,msdos3). then tried ls (hd0)/, ls (hd0,1)/, ls (hd0,msdos2)/, ls (hd0,msdos3)/ to find the linux filesystem to boot. But i was unsuccessful. it all gave me unknown filesystem error. Am i missing or something?

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• Password Authentication Problems

  - by Bobby Hathorn

  I am new to Ubuntu, am extremely delighted with the performance and speed, as compared to Windows 7-However, I messed up, I think...when I booted my USB disc, I set a password, as directed, and when Ubuntu booted up I tried to reset my password via User Accounts to "None". Now, the Password Authentication window prevents me from downloading software, (Audacity and my Ubuntu updates. Also, I've tried to boot into GRUB and the Recovery Console, as directed; however, the PC bypasses GRUB and boots into Ubuntu instead. Also, when attempting to use the terminal as directed to change the password, I'm given a password prompt there also. If the problem is on my end, could you email/reset my password? My PC is an emachines EL1358G. I am otherwise happy with Ubuntu!

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• PLS HELP!!How to boot windows 7 after installing ubuntu 12.10?

  - by user113553

  Im new to linux and im interested in learning it so I installed ubuntu 12.10 yesterday. Installation went smoothly and i chose "install alongside windows option" and I set about 50 gb using that slider and i tot i used 50 gb from c: drive but to my shock it used 50 gb space from f: drive. This was my first shock.Then when i restarted n tried to log into windows, nothing happened a black screen appeared saying "To restart press alt+ctrl+delete" but even pressing that it wont restart. No matter how many times i try rebooting windows is not booting same black screen saying restart appears. But i can log in to ubuntu and i can see that windows c: drive is fine. PLEASE HELP ME!!!!

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• Turned off my computer and o it's opened up in grub. How do I tell it to boot into lubuntu?

  - by Magpie

  It's just a commandline. I have tried my usual trick of sticking a usb with lubuntu in there to see if I can boot from my usb but I get a boot error (I normally wouldn't using that usb). GNU grub version 2.00-7ubuntu11 also just using basic things I know I hits ls then tried boot hd0 but it says: you need to load the kernel first I have no idea how to do this. I looked at the commands and most of them hve obscure names that are not helpful. UPDATE: I hit exit and that allowed be to boot from usb. Hopefully I will be able to find what I need to install to get it booting normally again from there.

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• PC won't boot up after installing 11.10

  - by bakhshu

  I have a HP/Compaq s1010z (AMD64) desktop and installed 11.10 from a CD (using the entire disk). So it formatted the entire drive, went through installation and then it ejected the CD and asked me to click the Restart button, which I did. It rebooted fine the first time, but any time thereafter, it fails. Meaning, after the initial BIOS screen, the monitor seems to be stuck in limbo with a text cursor blinking on the top left corner, as if it can't find anything to boot from. At first I tried reinstalling (reformat entire drive again) - no improvement. Then I did an in-place re-installation (leave home dirs in place, just redo the OS), nothing there either. Then I put in the 11.04 CD, changed the boot order to CD first, and got the CD menu, chose 'Boot from first hard disk' and it booted fine. The problem is that I can't boot without the 11.04 CD, how ironic! Any ideas?

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• grub-install dummy fails. this is a fatal error

  - by user287764

  I am new to this but I have watched many video how to dual boot Ubuntu with windows 8. I have HP pavilion g6 notebook with 4 GB RAM and Intel i5 processor. I am installing Ubuntu 13.10 with windows 8. In the process of installation I select something else then make some partion as mentioned here. /dev/sda6. 2048 mb of swap area /dev/sda7. 18 GB of / And then I click on install. When installation starts it stuck when grub is installing And message arose as grub install dummy fails. This is a fatal error. I have searched about this on Google many others have faced same problem but none of them helped me. I think the problem is of uefi system. Is there any way so I can dual boot Ubuntu with windows 8.

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• Can't access computer

  - by Pudica

  I'm running Ubuntu 14.04 on an Intel NUC and it won't boot! The last successful boot was earlier today but now each time I try it gets stuck on the Grub menu where it prompts for memory check etc. This is not a dual boot system, so this screen shouldn't ever appear, and it never has before. It's GRUB version 2.02~beta2-9, which is a little disconcerting, as I'm on the stable sources. Unfortunately the keyboard (I've tried 2 keyboards just in case) is not responding at this point in the boot process, so I can't select the "Ubuntu" menu option in Grub. The keyboard works during the bios stage, so I can configure it to boot from USB, and I tried a flash drive with 14.04 on it. The flash drive works in my laptop but is completely ignored by the NUC (I tried all 3 USB ports!). It seems that I have no way of getting into the machine at all! The Intel support site was my first option, but the site is down. I expect it's a long shot, but if anyone has any ideas I'd be very grateful.

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• Boot error aftter clean Ubuntu 13.04 install: [Reboot and select proper boot device]

  - by IcarusNM

  I am having the same problem as this guy where a fresh Ubuntu install completes beautifully but will not boot. I get the ASUS (?) "Reboot and select proper boot device" error, first with Xubuntu 13.10 and after finally giving up there, and Xubuntu 13.4, I am back to regular Ubuntu 13.4. ASUS motherboard Z77, Intel chipset. Standard internal SATA 500GB HD. 64-bit. All-new hardware less than 3 months old. It was running Ubuntu 12.04LTC great until I tried this upgrade. I have re-installed from scratch every which way: with LVM, without LVM; with the default partitions, with my own partitions. With ext3 or ext4. Alongside; replace; upgrade. No difference. On the last two tries, I have booted afterward from the same USB stick, downloaded and run boot-repair, and now I guess I am off to the boot-repair support email with my URLs from that. It did all kinds of cool stuff but ultimately made no difference. I never got anything like this with Ubuntu 12.04. I've now probably re-installed Ubuntu 13.04 ten times slightly different ways. I finally found how to skip the language packs, so at least that sped things up! :) This starts from the ubuntu-13.04-desktop-amd64.iso and UNetbootin as suggested on the official instructions for USB thumb drive creation from OSX. That part all works fine (booting the USB on the PC and trying Ubuntu and/or installing from there on the PC HD.) I have no CD drive on this PC, but I suppose I could get one. I would rather find some Linux install that works from USB like I've always done. After running boot-repair twice, in the ASUS BIOS I now see three different UEFI boot options in the priority list, and they are all labeled exactly the same: ubuntu (P6: WDC WD5000AAKX-00U6AA0) Then there's a non-UEFI option: P6: WDC WD5000AAKX-00U6AA0 (476940MB) And a fifth option appeared after the first boot-repair: Windows Boot Manager (P6: WDC WD5000AAKX-00U6AA0) I have tried all 5 of these, and I get exactly the same error. I have never had Windows installed on this HD. ASUS is calling it Windows Boot Manaer but I presume that's a mistaken label for whatever boot-repair did. I can boot on USB and run GParted and it looks great. The partitions all look normal. I found another case of this online with no solution posted. I can't find much about it online. Needs a Master Boot Record wipe/redo?? I'm not sure how.

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