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Originally Posted by jokar.mohsen
Hello All.
My debian have some problem,it is not booted can i use debian DVD for upgrade it?
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Why do you think that upgrading a not working system will fix the issues? To which branch do you want to upgrade?
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in my desktop i have some files that i need they and have some setting too
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If those files and settings are important then do backups, like snowpine already posted.
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can i upgrade my debian without lost any information?
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Yes and No! Normally there shouldn't be any loss of information while upgrading, but since upgrading a system is a critical task anything can happen (especially when doing system critical tasks on broken systems). So a backup is somewhat mandatory.