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Warning: The /common file system is mounted read only

Interesting one…..

Had an issue yesterday where we identified a Cisco bug (CSCti52867) relating to any of the following IBM MCS servers

MCS-7816-I4,

MCS-7825-I4

MCS-7828-I4

When logging into the CLI instead of getting the standard Admin prompt the following information was presented which encouraged me to investigate further

java.io.FileNotFoundException: /var/log/active/platform/log/cli.bin (Read-only file system)

        at java.io.RandomAccessFile.open(Native Method)

        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)

        at com.cisco.iptplatform.fappend.ciscoRollingFileAppender.restoreIndex(ciscoRollingFileAppender.java:100)

        at com.cisco.iptplatform.fappend.ciscoRollingFileAppender.setFile(ciscoRollingFileAppender.java:43)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

        at java.lang.reflect.Method.invoke(Method.java:597)

        at org.apache.log4j.config.PropertySetter.setProperty(PropertySetter.java:196)

        at org.apache.log4j.config.PropertySetter.setProperty(PropertySetter.java:155)

        at org.apache.log4j.xml.DOMConfigurator.setParameter(DOMConfigurator.java:530)

        at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:182)

        at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:140)

        at org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:153)

        at org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:415)

        at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:384)

        at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:783)

        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:666)

        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:616)

        at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:584)

        at org.apache.log4j.xml.DOMConfigurator.configure(DOMConfigurator.java:687)

        at sdMain.main(sdMain.java:602)

java.lang.NullPointerException

        at com.cisco.iptplatform.fappend.ciscoRollingFileAppender.updateIndex(ciscoRollingFileAppender.java:117)

        at com.cisco.iptplatform.fappend.ciscoRollingFileAppender.nextFileName(ciscoRollingFileAppender.java:92)

        at com.cisco.iptplatform.fappend.ciscoRollingFileAppender.append(ciscoRollingFileAppender.java:74)

        at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221)

        at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57)

        at org.apache.log4j.Category.callAppenders(Category.java:187)

        at org.apache.log4j.Category.forcedLog(Category.java:372)

        at org.apache.log4j.Category.info(Category.java:674)

        at sdMain.main(sdMain.java:616)

log4j:ERROR No output stream or file set for the appender named [CLI_LOG].

   Welcome to the Platform Command Line Interface

    WARNING:

        The /common file system is mounted read only.

        Please use Recovery Disk to check the file system using fsck.

The solution to this issue cab be found at the following location

https://supportforums.cisco.com/docs/DOC-12955

Bascially you need to do the following

  1. Perform Backup of CUCM & UCXN  or Relevant UC Servers
  2. Use the Cisco Recovery Disc and perform a file system check (Note: If errors are found a rebuild and restore is required)
  3. Apply Disk Exerciser Utility
  4. Apply Server Firmware

Cheers

The Voice Man

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Categories: CUCM, UCXN
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