title: Hyperledger Fabric v1.1.0 byfn tutorial on Ubuntu 16.04
body: <pre><code>root@sungil:~/fabric-samples/first-network# export CHANNEL_NAME=mychannel
  root@sungil:~/fabric-samples/first-network# ../bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME
  2018-03-19 13:11:51.489 KST [common/tools/configtxgen] main -&gt; INFO 001 Loading configuration
  2018-03-19 13:11:51.494 KST [common/tools/configtxgen] doOutputChannelCreateTx -&gt; INFO 002 Generating new channel configtx
  2018-03-19 13:11:51.495 KST [msp] getMspConfig -&gt; INFO 003 Loading NodeOUs
  2018-03-19 13:11:51.495 KST [msp] getMspConfig -&gt; INFO 004 Loading NodeOUs
  2018-03-19 13:11:51.510 KST [common/tools/configtxgen] main -&gt; CRIT 005 Error on outputChannelCreateTx: config update generation failure: could not parse application to application group: setting up the MSP manager failed: the supplied identity is not valid: x509: certificate signed by unknown authority (possibly because of "x509: ECDSA verification failure" while trying to verify candidate authority certificate "ca.org2.example.com")
  </code></pre>
  
  <p>I installed hyperledger fabric v1.1.0-rc1 using byfn.sh.</p>
  
  <p>(Reference:
  <a href="http://hyperledger-fabric.readthedocs.io/en/lastest/build_network.html" rel="nofollow noreferrer">http://hyperledger-fabric.readthedocs.io/en/lastest/build_network.html</a>)</p>
  
  <p>But I got some failure. It's Fabric CA problem?</p>
  
  <p><strong>[executed]</strong></p>
  
  <pre><code>./byfn.sh -m generate
  
  ./byfn.sh -m up
  
  ../bin/cryptogen generate --config=./crypto-config.yaml
  
  export FABRIC_CFG_PATH=$PWD
  
  ../bin/configtxgen -profile TwoOrgsOrdererGenesis -outputBlock ./channel-artifacts/genesis.block
  
  export CHANNEL_NAME=mychannel
  
  ./bin/configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME
  </code></pre>
  
  <p>my configtx.yaml is <a href="https://github.com/hyperledger/fabric-samples/blob/release-1.1/first-network/configtx.yaml" rel="nofollow noreferrer">https://github.com/hyperledger/fabric-samples/blob/release-1.1/first-network/configtx.yaml</a></p>