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I have had a dual-boot Windows 7 and Ubuntu for a month or so. I have been able to go back and forth with no issues until recently. After booting Windows, I booted Ubuntu and it dropped to a (initramfs) prompts/busybox. I was able to boot by using the following command:

(initramfs) fsck /dev/sdaX

Now, I can boot, but it takes a long time. Also, I had to edit the fstab, so that my ntfs partition would automount like it used to.

See systemd-analyze results below:

Startup finished in 8.520s (kernel) + 3min 385ms (userspace) = 3min 8.905s

systemd-analyze plot results

Here is the most important part of the dmesg:

http://freetexthost.com/dyq2fe4az3

/etc/fstab text:

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

#/dev/sda5
UUID=96eb174d-6c89-4730-a55f-e5f037a074b1   /   ext4    errors=remount-ro   0   1
/dev/sda2   /media/windows  ntfs-3g defaults,locale=en_US.UTF-8 0   0
#/dev/sda6
UUID=3734f2a5-4ea4-445c-813e-7369c96b414f   none    swap    sw  0   0
Austin Tackaberry
  • 21

1 Answers1

0

Four part fix... Windows hibernation file, fsck, disk NCQ errors, and bad blocks...

Part #1:

If the NTFS drives are mounting as read-only, its probably because Ubuntu thinks their filesystems are unclean, probably due to hibernation, or a damaged file system. Do this...

In Windows...

  • boot into Windows
  • open the Power control panel
  • choose change what the power buttons do
  • choose change options that are unavailable
  • uncheck fast startup
  • close the Power control panel
  • open an administrative command prompt window
  • type powercfg /h off
  • type chkdsk /f c:
  • approve to run chkdsk at next reboot
  • type chkdsk /f x: (replacing "x" with drive letters of other visible NTFS partitions)
  • reboot into Windows to let chkdsk run on drive C:

Part #2:

To check the file system on your Ubuntu partition...

  • boot to the GRUB menu
  • choose Advanced Options
  • choose Recovery mode
  • choose Root access
  • at the # prompt, type sudo fsck -f /
  • repeat the fsck command if there were errors
  • type reboot

Part #3:

Edit /etc/default/grub

gksudo gedit /etc/default/grub

Change this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

To this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash libata.force=noncq"

In Terminal...

sudo update-grub
reboot

Part #4:

Your hard disk may be going bad, and has some bad blocks that it's having trouble reading and reassigning.

Backup your data now!

If Part #1 - #3 don't fix the problem, then continue with Part #4

Don't do the following on a SSD drive!

  • boot to a Ubuntu Live DVD/USB
  • start a terminal window
    • sudo e2fsck -cck /dev/sda5 # try to map out bad blocks
    • reboot
heynnema
  • 73,649