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5

I had the same error - it was related to the UUIDs in /etc/fstab. I had resized the disk partition, by deleting the swap partition, and then recreating swap. This caused the swap UUID to change. List the UUIDs with: sudo blkid And then check/fix any thatdo not match sudo vi /etc/fstab On the released version 15.04. I resized the partition, and after ...


4

Run those commands grub> linux (hd0,1)/vmlinuz root=/dev/sda1 grub> initrd (hd0,1)/initrd.img grub> boot Replace hd0 with your hdd number and /dev/sda1 with your partition holding the /boot mainly the dafult will work if you don't have more than one hdd and with default installtion check this for more info When you can boot again you shoulf ...


3

If you put long-running commands in rc.local, your startup will be delayed. You should send these to the background: ( fstrim -v /; fstrim -v /home ) & That said, you probably don't have to do this yourself. Ubuntu 14.10 added a weekly job for fstrim.


3

Log out of your graphical session and go to TTY1 whith Ctrl+Alt+F1. Log in and edit the file /etc/default/grub sudo nano /etc/default/grub or if you like vi sudo vim /etc/default/grub Remove the values for GRUB_CMDLINE_LINUX_DEFAULT GRUB_CMDLINE_LINUX_DEFAULT="" Then update GRUB and reboot sudo update-grub sudo reboot


2

Pretty much. EFI-mode booting involves two things: Boot loader files written to the EFI System Partition (ESP) on the hard disk. Pointers to the ESP-based files stored in NVRAM on the motherboard. The intent is that you can install as many boot loaders as you like and provide an order in which the computer should try them. Users should also be able to ...


2

If you have installed without Wubi.exe: At the grub prompt try these commands: set pager=1 ls Now, suppose the output of ls is: (hd0) (hd0,msdos2) (hd0,msdos1), in order to find the linux root filesystem run: ls (hd0,1)/ which should give you all the files/folders in / such as bin/ boot/ cdrom/ dev/ etc/ home/ lib/ etc. Once this is done continue ...


1

For information on installing Ubuntu in dual-boot with Windows 8 or 8.1 on an EFI-based system, see: Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported) The Ubuntu UEFI wiki My page on EFI-mode Linux installations Note that there's a lot of bad information out there relating to EFI-mode installations, so following random ...


1

The only thing that worked for me was installing boot-repair on a USB and booting from it. I found out that whenever I make a change in the BIOS and "Exit and save changes", I'd lose access to Ubuntu, looks like Windows "fixes" the boot and then I can't access GRUB.


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Read Only is the state that recovery mode boots into intentionally. What you need to do is remount the root partition with read-write privileges. This will remount the drive as readable and writable. Execute this in the recovery console: mount -rw -o remount /


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Is there a message on the screen or is it just black? Does GRUB load up?


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A simple solution with no need for other applications or software. Just remove the connection of your internal storage and keep your external connected. Now just install Ubuntu 14.04 or whatever in the external hdd. Once you are finish connect your internal storage again. Now you have a bootable external drive If you really want to do it with a software. ...


1

Are you able to log-in? If yes, try adding blacklist mei_me line to /etc/modprobe.d/blacklist.conf. If this doesn't work , add the following line to modprobe.conf.local: install mei /bin/true and restart.


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On my ThinkPad Ubuntu 14.04 went into the infinite loop, Ubuntu 15.04 did not. Furthermore: proper shutdown in Windows UEFI on (important) CSM yes SecureBoot off After installing Ubuntu, only boot to Windows was possible: boot Ubuntu from live and install + run boot-repair. This way grub is the first thing that comes up. Windows boot loader can be ...


1

I got the Dell XPS 13 (9343 model) from work, and first thing I did was wipe the disk, and install Ubuntu 14.04. I'm running the latest BIOS, A03. I did alot of tinkering to get the laptop booting. I discovered that the laptop will not work with UEFI booting. You need to disable secureboot, and boot the install media as a legacy device. Then perform a usual ...


1

The problem was caused by bad swap partition referance in /etc/crypttab It waited 90secs before giving up on that. For some reason swap was defined on an non-existing drive, once corrected, everything works fine.


1

I am also having problems with lightdm refusing to show up. In my case, I have both "plain" ubuntu and kubuntu-desktop, so I chose sddm as login screen (sudo dpkg-reconfigure lightdm allowed me to select which login manager I wanted). Maybe installing sddm (if you don't want all of Kubuntu desktop) might be a workaround (I don't know detailed steps on how to ...


1

Workaround from the bug report. #5: I use it as Client and have deactivated autostart AUTOSTART="none" I start it manually, when i need the VPN. In prevuse version, the startscript asked for the password. Regards Franz So disable the autostart option in the openvpn config file (/etc/default/openvpn) and it will ask for it when you start ...


1

You can change the timeout of nm-online to something like 10: Edit /lib/systemd/system/NetworkManager-wait-online.service as root or using sudo. Look for the lines: [Service] Type=oneshot ExecStart=/usr/bin/nm-online -s -q --timeout=30 Change 30 to whatever you like. 10 worked well for me. But beware this may break services that depend on it. Source


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Boot from the windows DVD into the repair mode and enter the command fixmbr. More here and here.


1

The above remark referring to the graphical description is good, from a descriptive point of view. A technical in depth of what happens during installation is given here: https://help.ubuntu.com/stable/installation-guide/amd64/apds04.html, although it is given in Ubuntu commands.



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