Yrurtj

I installed ubuntu with dual boot alongside Windows 8. While partitioning I allocated 9.8 GB to the root directory of linux.Now i am short on space with only 700MB space remaining in this root directory. I cannot delete this OS because i have important application and files which run only on the Linux environment. Is there any way i can shift the root directory to another partition(I have an empty 17GB partition /dev/sda12 ) or increase the partition size?

This is how my partitions look like-

The error messgae when i boot into Windows is:

File : BootBCD

Status : 0xc000000e

Info : The boot configuration Data on your PC is missing or contains errors

Let's follow these steps:

BACKUP ALL IMPORTED FILES

=========================================

Overall Process

1. Backup you Ubuntu system


2. Identify UUID of new partition


3. Modify /etc/fstab to mount new partition


4. Copy old root (/) to new location /media/new_root


5. Confirm copy worked


6. Switch root mount point in /etc/fstab


7. Remount all entries in the /etc/fstab


8. Delete the /media/new_root

==========================================

1. 
   

   Identify the UUID of the new partition to use with the command

   
   
   

   sudo blkid
   
   

   
   


2. 
   

   Setup /etc/fstab

   
   
   
   
   
   1. sudo cp /etc/fstab /etc/fstab.$(date +%Y-%m-%d)
   
   
   2. 
      

      cmp /etc/fstab /etc/fstab.$(date +%Y-%m-%d)

      
      
      

      Compares the two version

      
      
   
   
   3. 
      

      Edit the old /etc/fstab, sudo nano /etc/fstab

      
      
      

      # (identifier)  (location, eg sda5)   (format, eg ext3 or ext4)      (some settings) 
      
      UUID=????????   /media/new_root    ext          defaults       0       2 
      
      

      
      
      

      Replace UUID with the value for /dev/sda12 seen in step1 above

      
      
   
   
   
   


3. 
   

   Create that mount point

   
   
   

   sudo mkdir /media/new_root
   
   

   
   


4. 
   

   Mount /dev/sda12on /media/new_root

   
   
   

   sudo mount -a
   
   

   
   
   
   
   
   1. 
      

      Copy over /

      
      
      

      sudo rsync -aXS --progress --exclude='/*/.gvfs' /. /media/new_root/.
      
      

      
      
   
   
   2. 
      

      Check the copying worked

      
      
      

      sudo diff -r / /media/new_root -x ".gvfs/*"
      
      

      
      
   
   
   
   


5. 
   

   Perform final switch

   
   
   
   
   
   1. 
      

      sudo nano /etc/fstab

      
      
      

      # (identifier)  (location, eg sda5)   (format, eg ext3 or ext4)      (some settings) 
      
      UUID=????????   /    ext4          defaults       0       2
      
      

      
      
      
      
      
      • 
        IMPORTANT: Add a # in front of the former entry in the /etc/fstab that was for the root mount i.e. /dev/sda10, please check and make sure you identify it using the UUID value.
      
      
      
      
   
   
   
   


6. 
   

   Now remount to see if all went well

   
   
   
   
   
   1. sudo mount -a
   
   
   2. 
      

      Troubleshoot:

      
      
      
      
      
      1. 
         

         The volume may already be mounted:

         
         
         

         sudo umount /media/new_root
         
         sudo mount -a
         
         

         
         
      
      
      
      
   
   
   
   


7. 
   

   Delete /media/new_root if all goes well.

   
   
   

   sudo rm -rI /media/new_root
   
   

   
   

Goodluck

Source:(modified)

https://help.ubuntu.com/community/Partitioning/Home/Moving