Ubuntu system boot problem

Ubuntu system boot problem

Aug 17, 2014
ubuntu, linux

Description of the problem #

Recently, after installing Linux Ubuntu 14.04 LTS on my computer, I encountered strange problem during the system boot. Before system launched, I received the following message: After that, I typed: exit and system started normally, but this error occurred every time after reboot, so I decided to fix it.

Fixing the problem #

Attempt #1 #

First, I tried to change rootdelay as error message said. I opened file /etc/default/grub I found there the following line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and changed it to:

GRUB_CMDLINE_LINUX_DEFAULT="rootdelay=90 quiet splash"

rootdelay became longer, but unfortunately it didn’t fix the problem in my case.

Attempt #2 #

I edited /etc/fstab file. I executed the following command in terminal: sudo gedit /etc/fstab and edited fstab file in gedit. In the beginning my file looked like that:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=96889309-5f73-4688-8354-e64cd1bb158f /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=480cc3f7-a39d-4d0f-93d5-49fc8df1a392 none swap sw 0 0

Then, I commented one line and added another one describing /dev/sda1 disk device. Now, my file looks as follows:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=/dev/sda1/               ext4    errors=remount-ro 0       1
# UUID=96889309-5f73-4688-8354-e64cd1bb158f /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=480cc3f7-a39d-4d0f-93d5-49fc8df1a392 none swap sw 0 0

Problem still existed, so I tried another attempt to solve it.

Attempt #3 #

I opened terminal and typed the following command:

sudo grub-install /dev/sda

and then I typed another command to update grub:

sudo update-grub

After all of this, I rebooted computer and finally, error disappeared and problem was fixed!

Note #1

After removing rootdelay from the /etc/default/grub file, everything still works fine.

I was struggling with this error for some time, so I am very happy that I managed to fix it. I am a Linux n00b, so If you know any better or more efficient solutions to fix it, I will appreciate all of these.

Note #2

I’ve found another attempt (work-around) for this problem. You can get rid of the described problem with the following commands.

sudo sed -i 's/maybe_break mount/sleep 5\nmaybe_break mount/g' /usr/share/initramfs-tools/init
sudo update-initramfs -u

For more details check this thread.