|
Size: 1525
Comment:
|
Size: 2281
Comment: minor typos
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 3: | Line 3: |
| = Ubuntu Re-installation = | = How To Reinstall Ubuntu = |
| Line 5: | Line 5: |
| Reinstalling Ubuntu may sometimes be the quickest way to solve a problem (eg. if you broke your graphic driver). | Reinstalling Ubuntu's system files may sometimes be the quickest way to solve a problem, eg. if an upgrade failed or if your graphic driver is broken. |
| Line 7: | Line 7: |
| Few people know it, but since Hardy it's possible to reinstall Ubuntu '''without loosing the content of the /home folder''' (which contains program settings, internet bookmarks, emails... and all the documents, music, videos that you have put in it). '''Even if /home is not a on separated partition.''' (which is the case by default if you did not manually separate it). |
Few people know it, but since Hardy it's possible to reinstall Ubuntu '''without losing the content of the /home folder''' (which contains program settings, internet bookmarks, emails... and all the documents, music, videos that you have put in it). '''Even if /home is not on a separate partition''' (which is the case by default if you did not manually separate it). Remark: this tutorial can also be used to upgrade Ubuntu (eg 11.04 -> 12.04 from a 12.04 live-CD). |
| Line 10: | Line 11: |
| Here is HOWTO do it simply: | Here is how to do it simply: |
| Line 12: | Line 13: |
| == By security == | == Before all == |
| Line 14: | Line 15: |
| By security, backup your documents (including /home hidden files) on external disk or DVDs | This operation should not damage your documents but, for security, backup your documents and settings (including /home hidden files) on external disk or DVDs. (eg via [[http://clonezilla.org/clonezilla-live.php|CloneZilla]]) Remark: some special applications settings may be in system folders, eg LAMP, see below in the thread. |
| Line 23: | Line 25: |
| * If you are using '''Ubuntu 11.10 or newer''', you just need to select the "Upgrade 11.10 to 11.10" option of Ubuntu installer : | 2 possibilities: - '''If an "Upgrade 1X.XX to 1Y.YY" option is available''' (like in the screenshot below), choose it. |
| Line 25: | Line 29: |
| * If your are using '''Ubuntu 11.04 or previous''', you need to choose manual partitioning ("Something-else" entry), then select Ubuntu system partition, set its mount point as "/" (keep the same format type, the same size, and untick the "Format" checkbox). | |
| Line 27: | Line 30: |
| - Or, '''if the above option is not available''', choose manual partitioning ("Something-else" option), then select Ubuntu system partition, set its mount point as "/" (keep the same format type, the same size, and untick the "Format" checkbox). Also set other partitions (/boot, /home... see [[DiskSpace]]) if needed. | |
| Line 28: | Line 32: |
| Then finish the installation process. (remark: this may take several hours, like a normal install) == After reinstalling == After reinstalling, user accounts must be re-created with '''same login and password.''' == See also == * [[http://ubuntuforums.org/showthread.php?p=11770332#post11770332|Discussion on the forum]] |
How To Reinstall Ubuntu
Reinstalling Ubuntu's system files may sometimes be the quickest way to solve a problem, eg. if an upgrade failed or if your graphic driver is broken.
Few people know it, but since Hardy it's possible to reinstall Ubuntu without losing the content of the /home folder (which contains program settings, internet bookmarks, emails... and all the documents, music, videos that you have put in it). Even if /home is not on a separate partition (which is the case by default if you did not manually separate it). Remark: this tutorial can also be used to upgrade Ubuntu (eg 11.04 -> 12.04 from a 12.04 live-CD).
Here is how to do it simply:
Before all
This operation should not damage your documents but, for security, backup your documents and settings (including /home hidden files) on external disk or DVDs. (eg via CloneZilla) Remark: some special applications settings may be in system folders, eg LAMP, see below in the thread.
Run Ubuntu installer
- run Ubuntu installer
- go until the "Installation type" (or "Allocate disk space") menu
- then choose the right option as described below:
Choose the right option
2 possibilities:
- If an "Upgrade 1X.XX to 1Y.YY" option is available (like in the screenshot below), choose it. 
- Or, if the above option is not available, choose manual partitioning ("Something-else" option), then select Ubuntu system partition, set its mount point as "/" (keep the same format type, the same size, and untick the "Format" checkbox). Also set other partitions (/boot, /home... see DiskSpace) if needed.
Then finish the installation process. (remark: this may take several hours, like a normal install)
After reinstalling
After reinstalling, user accounts must be re-created with same login and password.