On Wed, July 4, 2012 11:51, John Doe wrote: > From: fred smith <fredex at fcshome.stoneham.ma.us> > >> On Wed, Jul 04, 2012 at 07:53:09AM -0700, John Doe wrote: >>> >>> Did you rpm verify? >>> # rpm -qV vim-enhanced Yes >>> # rpm -qV gdb Yes >>> Did you diff the text files? The files other than those in /usr/bin I know the cause of their alteration. It is caused by my ssh accesses. >>> Did you "binary diff" the binaries? No >>> How many bytes difference? constant number? >> >> prelink??? It seems so: [root at vhost01 ~]# yum install gdb . . . [root at vhost01 ~]# ll /usr/bin/gdb -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb [root at vhost01 ~]# mv /usr/bin/gdb /usr/bin/gdb.cln [root at vhost01 ~]# cp -p /usr/bin/gdb.cln /usr/bin/gdb [root at vhost01 ~]# ll /usr/bin/gdb* -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb -rwxr-xr-x. 1 root root 1061 Dec 7 2011 /usr/bin/gdb-add-index -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb.cln lrwxrwxrwx. 1 root root 3 Jul 4 14:16 /usr/bin/gdbtui -> gdb [root at vhost01 ~]# prelink -v /usr/bin/gdb Prelinking /usr/bin/gdb [root at vhost01 ~]# ll /usr/bin/gdb* -rwxr-xr-x. 1 root root 4468992 Dec 7 2011 /usr/bin/gdb -rwxr-xr-x. 1 root root 1061 Dec 7 2011 /usr/bin/gdb-add-index -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb.cln lrwxrwxrwx. 1 root root 3 Jul 4 14:16 /usr/bin/gdbtui -> gdb Which accounts for the size changes as far as I can see. I infer that the linked sizes likely changed as a result of system library updates associated with the recent kernel update. Thank you for the help. > > I do not think prelink would alter text configuration files like > .Xauthority or .bash_history Those files I expected to change and I am aware of the the cause. It is only the files in /usr/bin that concern me. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3