# use already downloaded blockchaiin for new node **URL:** \ **Category:** Guides\ **Created:** [June 5, 2023, 5:56pm UTC](https://community.umbrel.com/t/use-already-downloaded-blockchaiin-for-new-node/12676 "2023-06-05T17:56:44Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![c2862236](https://avatars.discourse-cdn.com/v4/letter/c/90ced4/32.png) [@c2862236](https://community.umbrel.com/u/c2862236)\ **Post date:** [June 5, 2023, 5:56pm UTC](https://community.umbrel.com/t/use-already-downloaded-blockchaiin-for-new-node/12676/1 "2023-06-05T17:56:44Z")
Hi all, I went from dead raspi (myNode) to Umbrel OS on Ubuntu 23. But my HDD didn’t die, so I can use my and only my (I trust nobody) downloaded blockchain to avoid syncing it from scratch for several days. Here’s how I did it: install bitcoin app, this will create folders and trigger syncing of blockchain, you need to stop it and shutdown Ubrel OS before copying: **sudo systemctl stop umbrel-startup** then: **sudo chown -R 1000:1000 /media/user/myNode/mynode/bitcoin/** - when you plug in your external HDD to Ubuntu, your path will look differently of course, so copy your whole path ( in explorer right click on folder \> properties) - this command will change your ownership rights from old HDD, so you can copy them to Ubuntu later Now in your explorer go to your old HDD with blockchain \> select folders “blocks”, “chainstate” and “indexes”, right click \> copy \> go to your Ubrel bitcoin location \> paste \> it will ask your to overwrite some already existing files \> confirm all That’s it, start your Umbrel OS and login to your bitcoin app, syncing will continue where it stopped (when my raspi died). All will take around 1 hour (SSD to SSD, but half TB of data!): **sudo systemctl start umbrel-startup** Bonus (replace “user” with your user name) location to find blockchain on myNode: /media/user/myNode/mynode/bitcoin/ location to find blockchain on Umbrel: /home/user/umbrel/app-data/bitcoin/data/bitcoin/