Hi, Pat Riehecky wrote: > SL7 > x86_64 [...] > openchange-2.0-10.el7_2.i686.rpm > openchange-2.0-10.el7_2.x86_64.rpm > openchange-debuginfo-2.0-10.el7_2.i686.rpm > openchange-debuginfo-2.0-10.el7_2.x86_64.rpm These ones don't seem to appear in ftp://ftp.scientificlinux.org/linux/scientific/7.2/x86_64/updates/security/ which causes updates to fail with: Error: Package: openchange-2.0-9.el7.x86_64 (@sl) Requires: libsamba-debug-samba4.so(SAMBA_4.2.3)(64bit) Removing: samba-client-libs-4.2.3-12.el7_2.x86_64 (@sl-security) libsamba-debug-samba4.so(SAMBA_4.2.3)(64bit) Updated By: samba-client-libs-4.2.10-6.el7_2.x86_64 (sl-security) ~libsamba-debug-samba4.so(SAMBA_4.2.10)(64bit) Available: samba-client-libs-4.2.3-10.el7.x86_64 (sl) libsamba-debug-samba4.so(SAMBA_4.2.3)(64bit) Available: samba-client-libs-4.2.3-11.el7_2.x86_64 (sl-security) libsamba-debug-samba4.so(SAMBA_4.2.3)(64bit) You could try using --skip-broken to work around the problem