Karanbir Singh wrote: > try this command : ( all on one line ) > > for f in `rpm -qa` ; do echo -n $f ; rpm --qf " %{VENDOR} > %{DISTRIBUTION} \n" -q $f ; done > > this should tell you where the packages installed on your machine came > from. I use 2 nice commands: bin/rpm-q.dates (which sort rpms by installation time) : rpm -qa --queryformat "%{installtime} %{name}-%{version}-%{release}.%-10{arch} %{installtime:date}\n"|sort -n|sed -e 's/^[^ ]* //' (less usefull now that /var/log/yum.log is available but easiest to read, for me at least) bin/rpm-q.dates.vendor (which list rpm by "vendor" name) : rpm -qa --queryformat "%-15{vendor} %{name}-%{version}-%{release}.%-10{arch}. %{installtime:date}\n"|sort -n Anne