Johnny M!
May 2nd, 2010, 01:09 PM
Upgrading an Existing version of Ubuntu?
Insure an appropriate (new) Kernel is associated with your new Ubuntu Install (in Menu.lst) before allowing your system to Re-Boot!
------------------------------------------------------------------------------------------------------------------------
Ubuntu Upgrade Problems caused by a failure to associate the (new) required kernel with the (new) Upgraded version of Ubuntu may cause your system not to Boot - leaving you with an inoperable computer and no easy way to recover.
Reference these two Install/Upgrade Forum Threads:
http://ubuntuforums.org/showthread.php?t=1468156
http://ubuntuforums.org/showthread.php?t=146858
I have run into this problem on my last two upgrades:
- 9.04 to 9.10
and
-9.10 to 10.04
How does this Happen?
Because I don't let the system (Update Manager) automatically install a new Boot/GRUB/Menu.lst file. I don't let this automatically happen because modifications to GRUB (on an earlier upgrade) had destroyed my ability to dual-Boot into Windows in the Past. So I prefer to manually edit the Menu.lst file myself
During the last phase of the Upgrade process, you encounter a few User Prompts: What asked about new Boot options, I click "Forward" (keep the current configuration) at the User Prompt; thus retaining the old Menu.lst (and old Kernel). But where you run into trouble is if the new Ubuntu Build Version is incompatible with a previous kernel (and requires a new kernel). If (after Upgrade Download+Setup+Install) you allow the system to re-Boot before you insure a proper Kernel is associated with your Ubuntu boot option (in menu.lst); you could run into serious trouble like I did (see previous posts).
IMPORTANT:
- Find out what the new Kernel should be before starting the Upgrade Process (that info will be in Support / Forums).
- Before allowing your Upgraded Ubuntu Build to Re-Boot; Verify the correct New Kernel is associated with your Boot Option listed in Menu/lst:
- Pathway: Places - Computer - File System - boot/grub/menu.lst
- If required, Edit the Boot Option with the following commwand (in Terminal):
sudo gedit /boot/grub/menu.lst
Save the File
Now (and not before) it is Safe to Re-Boot into your freshly minted New Ubuntu Build !!!!
Hope this can help someone avoid my previous pitfalls !
BVR
Johnny M!
:guitar:
Rock On !
Insure an appropriate (new) Kernel is associated with your new Ubuntu Install (in Menu.lst) before allowing your system to Re-Boot!
------------------------------------------------------------------------------------------------------------------------
Ubuntu Upgrade Problems caused by a failure to associate the (new) required kernel with the (new) Upgraded version of Ubuntu may cause your system not to Boot - leaving you with an inoperable computer and no easy way to recover.
Reference these two Install/Upgrade Forum Threads:
http://ubuntuforums.org/showthread.php?t=1468156
http://ubuntuforums.org/showthread.php?t=146858
I have run into this problem on my last two upgrades:
- 9.04 to 9.10
and
-9.10 to 10.04
How does this Happen?
Because I don't let the system (Update Manager) automatically install a new Boot/GRUB/Menu.lst file. I don't let this automatically happen because modifications to GRUB (on an earlier upgrade) had destroyed my ability to dual-Boot into Windows in the Past. So I prefer to manually edit the Menu.lst file myself
During the last phase of the Upgrade process, you encounter a few User Prompts: What asked about new Boot options, I click "Forward" (keep the current configuration) at the User Prompt; thus retaining the old Menu.lst (and old Kernel). But where you run into trouble is if the new Ubuntu Build Version is incompatible with a previous kernel (and requires a new kernel). If (after Upgrade Download+Setup+Install) you allow the system to re-Boot before you insure a proper Kernel is associated with your Ubuntu boot option (in menu.lst); you could run into serious trouble like I did (see previous posts).
IMPORTANT:
- Find out what the new Kernel should be before starting the Upgrade Process (that info will be in Support / Forums).
- Before allowing your Upgraded Ubuntu Build to Re-Boot; Verify the correct New Kernel is associated with your Boot Option listed in Menu/lst:
- Pathway: Places - Computer - File System - boot/grub/menu.lst
- If required, Edit the Boot Option with the following commwand (in Terminal):
sudo gedit /boot/grub/menu.lst
Save the File
Now (and not before) it is Safe to Re-Boot into your freshly minted New Ubuntu Build !!!!
Hope this can help someone avoid my previous pitfalls !
BVR
Johnny M!
:guitar:
Rock On !