An important update for all SPOs who don’t want to miss potential blocks!
Fixed:
Stake pools unnecessarily evaluate the stake distribution at the epoch boundary
Read more about it: Github
It is also sufficient to install the update only on the blockprudcer. The relays do not necessarily need it. However, it also makes sense to update relays and other airgapped machines.
FIRST:
Take an Backup/Snapshot from your Nodes!!!
– Update Guild LiveView –
Note: You don’t have to update gLive, I just included it in case an update is released. So it is only preventive because it does not interfere with the update process.
cd ${NODE_HOME}
curl -s -o gLiveView.sh https://raw.githubusercontent.com/cardano-community/guild-operators/master/scripts/cnode-helper-scripts/gLiveView.sh
curl -s -o env https://raw.githubusercontent.com/cardano-community/guild-operators/master/scripts/cnode-helper-scripts/env
chmod 755 gLiveView.sh
– Update env file with the stake pools configuration –
sed -i env \
-e "s/\#CONFIG=\"\${CNODE_HOME}\/files\/config.json\"/CONFIG=\"\${NODE_HOME}\/mainnet-config.json\"/g" \
-e "s/\#SOCKET=\"\${CNODE_HOME}\/sockets\/node0.socket\"/SOCKET=\"\${NODE_HOME}\/db\/socket\"/g"
– Download source from github –
cd $HOME/git
rm -rf cardano-node-old/
git clone https://github.com/input-output-hk/cardano-node.git cardano-node2
cd cardano-node2/
– Checkout new Branch 1.26.2 and Compile –
cd $HOME/git/cardano-node2
cabal update
git fetch --all --recurse-submodules --tags
git checkout tags/1.26.2
cabal configure -O0 -w ghc-8.10.4
echo -e "package cardano-crypto-praos\n flags: -external-libsodium-vrf" > cabal.project.local
cabal build cardano-node cardano-cli
Depending on the server performance, the process takes between 20 and 60 minutes.
– Check if cardano-cli and cardano-node updated to 1.26.2 –
$(find $HOME/git/cardano-node2/dist-newstyle/build -type f -name "cardano-cli") version
$(find $HOME/git/cardano-node2/dist-newstyle/build -type f -name "cardano-node") version
If it print you Version 1.26.2 than all is fine 
– Stop old Cardano Node 1.26.1 and replace Binaries with the new Version –
Stop Node:
sudo systemctl stop cardano-node
Copy Binaries to bin folder:
sudo cp $(find $HOME/git/cardano-node2/dist-newstyle/build -type f -name "cardano-cli") /usr/local/bin/cardano-cli
sudo cp $(find $HOME/git/cardano-node2/dist-newstyle/build -type f -name "cardano-node") /usr/local/bin/cardano-node
Verify Version:
cardano-node version
cardano-cli version
If Version 1.26.2 you can start your node!
sudo systemctl start cardano-node
Via ./gLiveView.sh it should now look something like this:
– Now just clean up a little bit –
cd $HOME/git
mv cardano-node/ cardano-node-old/
mv cardano-node2/ cardano-node/
Guild LiveView:
Guild LiveView is not yet available for version 1.26.2 when you start it you will be asked if you want to update. Please enter “no” and confirm with return. There will be an official update of Guild LiveView in the next days.
Note:
With my own nodes i had to go a different way through a slightly different infrastructure. But I have adapted my instructions for you on “coincashew” instructions and should work without problems. Let me know if you have problems.
