我正试着从10.04升级到10.10甚至更高。我现在连接到互联网上。我最不想做的事情是重新安装,因为我双重引导机器,我不想冒任何风险。如有任何建议或帮助,将不胜感激。Could not download all repository indexes
The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Ot