[sattu94]

i have ubuntu 7.10 on my PC. i have the CD for the 8.10 version and want to upgrade to 8.10. but when i put the CD in and click on add CD-ROM in the software sources third party tab it shows a mounting bar and then gives an error saying something like this :

ERROR SCANNING THE CD
"E:Could not open file /cdrom/dists/intrepid/main/binary-i386/Packages - open (2 No such file or directory), E:Unable to determine the file size - fstat (9 Bad file descriptor), W:Hash mismatch for: main/binary-i386/Packages, E:Could not open file /cdrom/dists/intrepid/restricted/binary-i386/Packages - open (2 No such file or directory), E:Unable to determine the file size - fstat (9 Bad file descriptor), W:Hash mismatch for: restricted/binary-i386/Packages"

How do i upgrade please tell and also about this problem and i dual boot my system with windows XP and linux ubuntu 7.10.

[saikee]

You can install the 8.10 version over the existing 7.10 version. If you do not format the partition thereby using whatever files were there before and over write with whatever new. This is called a dirty install and a lot of time it won't work because some files may not match. A clean install is to format the partition that hold 7.10 for the new version but you will lose your personal data unless you transfer it out and then re-import it into the new version.

Normally you do upgrading within the distro. For Ubuntu you click system/Update Manager.

As a rule never mix your personal data with an OS. You will do well having a neutral and data-only partition that you can mount in both Xp and Ubuntu. Personal data is always more valuable than an OS.