Last week I re-installed Kubuntu Hardy because I felt the psu was marginal and I was getting flakey behavior. The new install was done in another similiar machine with a psu believed to be good. Last night I did the first rsync backup and got error in some /var/log files. Errors listed below. When I cat /var/log/dpkg.log it stops and aborts in the middle before getting to the last parts where I used apt-get to load a lot of packages. This is serious. cat /var/log/fontconfig.log doesn't even start. cat fontconfig.log, faillog and lastlog do not even start and give the messages like: cat: faillog: Input/output error What can I do to find out if the disk is bad or repair it? Are these errors serious enough to re-install? Larry Alkoff The entries in /var/log/rback.errors: root@kinda log # cat rback.errors rsync error: some files could not be transferred (code 23) at main.c(977) [sender=2.6.9] rsync: read errors mapping "/var/log/dpkg.log": Input/output error (5) rsync: read errors mapping "/var/log/faillog": Input/output error (5) rsync: read errors mapping "/var/log/fontconfig.log": Input/output error (5) rsync: read errors mapping "/var/log/lastlog": Input/output error (5) rsync: read errors mapping "/var/log/dpkg.log": Input/output error (5) rsync: read errors mapping "/var/log/faillog": Input/output error (5) rsync: read errors mapping "/var/log/fontconfig.log": Input/output error (5) rsync: read errors mapping "/var/log/lastlog": Input/output error (5) ERROR: log/dpkg.log failed verification -- update discarded. ERROR: log/faillog failed verification -- update discarded. ERROR: log/fontconfig.log failed verification -- update discarded. ERROR: log/lastlog failed verification -- update discarded. rsync error: some files could not be transferred (code 23) at main.c(977) [sender=2.6.9]