Unable to Upgrade Ubuntu: Difference between revisions

Revision as of 19:49, 24 April 2019

When attempting to update Ubuntu from version 14.04 LTS to 16.04, you may encounter an error when entering the following command:

do-release-upgrade

This error is caused by non utf-8 characters in the /var/lib/dpkg/status file. Follow the instructions below to identify and remove these characters.

Enter the following command:
```
grep -avx '.*' /var/lib/dpkg/status
```
This will display any not utf-8 characters in the file
Enter the following command:
```
sudo nano /var/lib/dpkg/status
```
Locate the bad characters and delete them.
Save the file.

Enter the following command:
```
dpkg -l | grep linux-image
```
This will display all the kernels currently installed. All but the most recent can be safely deleted.
Enter the following:
```
apt-get remove ''old-linux-kernel-package-name''
```
ex: apt-get remove linux-image-3.13.0-32-generic

@@ Line 1: / Line 1: @@
 ==UnicodeDecodeError: 'utf-8' codec can't decode byte==
-When attempting to update Ubuntu from version 14.04 LTS to 16.04 using the command '''do-release-upgrade''' you may encounter the following error:
+When attempting to update Ubuntu from version 14.04 LTS to 16.04, you may encounter an error when entering the following command: <pre>do-release-upgrade</pre>
 :[[File:TS1.png]]
 This error is caused by non utf-8 characters in the /var/lib/dpkg/status file. Follow the instructions below to identify and remove these characters.
-# '''grep -avx '.*' /var/lib/dpkg/status'''
+# Enter the following command: <pre>grep -avx '.*' /var/lib/dpkg/status</pre>
 #: This will display any not utf-8 characters in the file
 #: [[File:TS1.png]]
-# '''sudo nano /var/lib/dpkg/status'''
+# Enter the following command: <pre>sudo nano /var/lib/dpkg/status</pre>
-# Locate the bad characters and delete them
+# Locate the bad characters and delete them.
-# Save the file
+# Save the file.
 ==/boot is out of space==
-# '''dpkg -l | grep linux-image'''
+# Enter the following command: <pre>dpkg -l | grep linux-image</pre>
 #: This will display all the kernels currently installed. All but the most recent can be safely deleted.
-# '''apt-get remove ''old-linux-kernel-package-name'''''
+# Enter the following: <pre>apt-get remove ''old-linux-kernel-package-name''</pre>
 #: ex: ''apt-get remove linux-image-3.13.0-32-generic''