Extract the chaindata


2. Extract the downloaded chaindata to the DATA_DIR (/kaia/kcnd/data).
$ sudo tar --zstd -C /kaia/kcnd/data -xvf kaia-mainnet-pruning-chaindata-20260918010012.tar.zst --exclude klay/chaindata/receipts

** Snapshots are compressed with zstd, so tar needs --zstd. If your tar was built without it, run sudo yum install zstd and extract in two steps: zstd -d <file>.tar.zst -o out.tar && sudo tar -C /kaia/kcnd/data -xf out.tar --exclude klay/chaindata/receipts.

** If the disk has no room for both the archive and the directory it expands into, download and extract in one pass instead of doing step A first.

$ URL=`curl -s https://snapshots.node.kaia.io/mainnet/pruning-chaindata/latest.txt`
$ curl -s $URL | sudo tar --zstd -C /kaia/kcnd/data -xf - --exclude klay/chaindata/receipts

Note

Keep the downloaded archive (kaia-mainnet-pruning-chaindata-*.tar.zst) until the node setup is complete. After your CN is running normally at the end of this workshop, remove it to free up the disk space: rm kaia-mainnet-pruning-chaindata-20260918010012.tar.zst (and out.tar if you used the two-step extraction).


If you finish this step, please click the next button > on the right side of this page.