If I have

<site handle="local" arch="x86_64" os="linux" osrelease="debian" osversion="7" glibc="">

in the site catalog and

<executable name="00223456_04.sh" arch="x86_64" os="linux" osrelease="debian" osversion="7" installed="true">

in the dax file I get the error

2016.05.03 11:45:24.253 EDT: [ERROR] **Parsing ** Line: 8
[org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 93; cvc-enumeration-valid: Value 'linux' is not facet-valid with respect to enumeration '[LINUX, SUNOS, AIX, MACOSX, WINDOWS]'. It must be a value from the enumeration.]

2016.05.03 11:45:24.258 EDT: [ERROR] **Parsing ** Line: 8
[org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 93; cvc-attribute.3: The value 'linux' of attribute 'os' on element 'site' is not valid with respect to its type, 'OSType'.]

2016.05.03 11:45:24.271 EDT: [FATAL ERROR] No enum const class edu.isi.pegasus.planner.catalog.classes.SysInfo$OS.linux

where line 8 refers to the site catalog.

If I make the change to os="LINUX" in both files I get the error

2016.05.03 11:29:44.014 EDT: [ERROR] **Parsing ** Line: 6
[org.xml.sax.SAXParseException; lineNumber: 6; columnNumber: 111; cvc-enumeration-valid: Value 'LINUX' is not facet-valid with respect to enumeration '[aix, sunos, linux, macosx, windows]'. It must be a value from the enumeration.]

2016.05.03 11:29:44.019 EDT: [ERROR] **Parsing ** Line: 6
[org.xml.sax.SAXParseException; lineNumber: 6; columnNumber: 111; cvc-attribute.3: The value 'LINUX' of attribute 'os' on element 'executable' is not valid with respect to its type, 'OSType'.]

where line 6 refers to the dax file.