Riothamus
September 12th, 2014, 07:23 PM
I have my hard drive partitioned with Windows 7 on /dev/sda2 and Ubuntu 12.04 LTS installed on /dev/sda6. The remaining partitions are used for recovery modes, the linux swap space, and so on. This is my df configuration:
/dev/sda6 217784244 11638932 195082428 6% /
udev 1853904 12 1853892 1% /dev
tmpfs 379136 896 378240 1% /run
none 5120 0 5120 0% /run/lock
none 1895680 76 1895604 1% /run/shm
/dev/sda2 484550384 184728364 299822020 39% /media/WIN7
I recently installed a new hard drive and I've been trying to migrate my Ubuntu installation there without having to reinstall the OS and software from scratch. I booted from the Ubuntu 12.04 Live CD and started GParted, then created a new partition on /dev/sdb (which is my new hard drive) and created a 3.75 Gig linux swap space partition at the end of the drive because that's the size of the swap space on my current setup (the partitioned one). Then I copied and pasted my Ubuntu partition to its own, new partition on /dev/sdb. GParted copied the partition, checked for errors, and then resized it. Because I had previously tried this using a different approach, the linux swap space was already called /dev/sdb2, so the main partition became /dev/sdb1.
Then I generated a new UUID and changed the UUID of /dev/sdb1 using:
sudo tune2fs /dev/sdb1 1bcc0198-3a90-11e4-9736-00e04c68091f
Next, I installed grub on this partition by doing the following:
sudo mount /dev/sdb1 /media/tmp
sudo grub-install --root-directory=/media/tmp /dev/sdb //Putting /dev/sdb1 gave errors, so I just put /dev/sdb
Finally, I modified /media/tmp/etc/fstab. All I did was change the UUIDs to the UUID of the new Linux partition that was copied, and the UUID of the linux swap space on the new drive, respectfully:
# /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/sda5 during installation
/dev/sda2 /media/WIN7 ntfs
UUID=1bcc0198-3a90-11e4-9736-00e04c68091f / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=451a0a74-36a1-474d-87e4-983298d60ad0 none swap sw 0 0
When I rebooted, I went into the BIOS and set the new hard drive as the primary boot drive, because I understand that if the Windows drive is the primary boot drive, it will not recognize the Linux drive, and will not give the option of which OS to boot into. My intention is to delete the Linux partition from the first hard drive once I'm sure the migration was successful, but for the time being, it's still there.
When I boot, everything starts up okay, and I've even disabled booting from the first hard drive with the BIOS to ensure that it is able to boot correctly from the new hard disk. But the only problem is that when I do this, even though it's booting from the second hard drive, it's still mounting /dev/sda6 as / and /dev/sdb1 isn't being mounted at all. Was there anything else I was supposed to change besides /etc/fstab to make this boot correctly?
/dev/sda6 217784244 11638932 195082428 6% /
udev 1853904 12 1853892 1% /dev
tmpfs 379136 896 378240 1% /run
none 5120 0 5120 0% /run/lock
none 1895680 76 1895604 1% /run/shm
/dev/sda2 484550384 184728364 299822020 39% /media/WIN7
I recently installed a new hard drive and I've been trying to migrate my Ubuntu installation there without having to reinstall the OS and software from scratch. I booted from the Ubuntu 12.04 Live CD and started GParted, then created a new partition on /dev/sdb (which is my new hard drive) and created a 3.75 Gig linux swap space partition at the end of the drive because that's the size of the swap space on my current setup (the partitioned one). Then I copied and pasted my Ubuntu partition to its own, new partition on /dev/sdb. GParted copied the partition, checked for errors, and then resized it. Because I had previously tried this using a different approach, the linux swap space was already called /dev/sdb2, so the main partition became /dev/sdb1.
Then I generated a new UUID and changed the UUID of /dev/sdb1 using:
sudo tune2fs /dev/sdb1 1bcc0198-3a90-11e4-9736-00e04c68091f
Next, I installed grub on this partition by doing the following:
sudo mount /dev/sdb1 /media/tmp
sudo grub-install --root-directory=/media/tmp /dev/sdb //Putting /dev/sdb1 gave errors, so I just put /dev/sdb
Finally, I modified /media/tmp/etc/fstab. All I did was change the UUIDs to the UUID of the new Linux partition that was copied, and the UUID of the linux swap space on the new drive, respectfully:
# /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/sda5 during installation
/dev/sda2 /media/WIN7 ntfs
UUID=1bcc0198-3a90-11e4-9736-00e04c68091f / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=451a0a74-36a1-474d-87e4-983298d60ad0 none swap sw 0 0
When I rebooted, I went into the BIOS and set the new hard drive as the primary boot drive, because I understand that if the Windows drive is the primary boot drive, it will not recognize the Linux drive, and will not give the option of which OS to boot into. My intention is to delete the Linux partition from the first hard drive once I'm sure the migration was successful, but for the time being, it's still there.
When I boot, everything starts up okay, and I've even disabled booting from the first hard drive with the BIOS to ensure that it is able to boot correctly from the new hard disk. But the only problem is that when I do this, even though it's booting from the second hard drive, it's still mounting /dev/sda6 as / and /dev/sdb1 isn't being mounted at all. Was there anything else I was supposed to change besides /etc/fstab to make this boot correctly?