General questions and further learnings regarding the technology used in Umbrel.
Issues concerning the primary operations of your Umbrel node can be found in the separate Troubleshooting guide.
- Can I get rich by routing Lightning payments?
- Can I attach the Ext4 formatted hard disk to my Windows computer?
- Can I use previously downloaded blockchain to save time when setting up my Umbrel node?
- What do all the Linux commands do?
- How can I see the logs of a specific Umbrel module?
- Where can I get more information?
- Does Umbrel support …?
Nobody knows. Probably not. You will get minimal fees. I don’t care. Enjoy the ride!
The Ext4 file system is not compatible with standard Windows, but with additional software like Linux File Systems by Paragon Software (they offer a 10 days free trial) it is possible.
This is not natively supported by Umbrel for different reasons but you can make it at your own risk following these instructions:
- Flash Umbrel OS to an SD card and boot it in a Pi with your SSD attached
- Run through the setup process
- Go to the settings page and shutdown Umbrel (Your SSD is now formatted correctly for Umbrel)
- Remove the SSD and attach it to a host Linux machine with access to the pre-downloaded blockchain
- Copy blocks and chainstate directories from your Bitcoin Core data directory to /umbrel/bitcoin/ on the SSD
- Remove the SSD from the host, plug it back into your Umbrel, and power it back on.
This is a (very) short list of common Linux commands for your reference. For a specific command, you can enter
man [command] to display the manual page (type
q to exit).
| ||change to directory|| |
| ||list directory content|| |
| ||copy|| |
| ||move|| |
| ||remove|| |
| ||make directory|| |
| ||make link|| |
| ||run command as superuser|| |
| ||switch to different user account|| |
| ||change file owner|| |
| ||change file permissions|| |
| ||text file editor|| |
| ||archive tool|| |
| ||exit current user session|| |
| ||control systemd service|| |
| ||query systemd journal|| |
| ||monitor processes & resource usage|| |
| ||shutdown or restart Pi|| |
Step 1 - In a terminal window, execute this:
ssh -t email@example.com
Password: < your own Umbrel dashboard password > (remember that you will not see what you type, then press ENTER)
Step 2 - type this command, replacing the name of each docker container you want to see (tor, lnd, bitcoin, btcpay, lnbits etc)
docker-compose logs tor
If you want to learn more about Bitcoin and are curious about the inner workings of the Lightning Network, the following list of articles and tutorials can offer a very good introduction:
General Info about Bitcoin and Lightning Network:
- What is Bitcoin?
- Understanding the Lightning Network
- Bitcoin resources and Lightning Network resources by Jameson Lopp
- Lightning Network Node Management - by openoms
- Beginners LN Guide - by Bitcoiner Guide
- Wiki Lightning Network - by ION Radar
- An overview of LN implementations
- Tor-Only Bitcoin and LN nodes - by Jameson Lopp
- What is a Bitcoin Node ?
- Lightning Network Explained - by Simply Explained
- How LN channels work - by Decentralized thought
- LN Channels Management - by Alex Bosworth
- Video tutorials about LN - by René Pickhardt
- Path finding in LN - by René Pickhardt
Lightning Network Apps:
- LNBits Tutorials Channel - by Ben Arc
- BTCPay Video Tutorials Channel - by BTCPay Server
- How to use RTL app/wallet - by Ministry of Nodes
- Rebalancing channels with RTL
- How to Loop out from a LN channel with RT
- How to use ThunderHub app/wallet
- Channels Management with RTL
Video Tutorials for wallets
- How to connect my desktop wallets to a node - by BTC Sessions
- Specter Desktop Tutorial - by Ben Kaufman
- HWI Bridge Configuration with Specter
- Lightning Network wallets - playlist by BTC Sessions
- Bitcoin Mobile wallets - playlist by BTC Sessions
- Bitcoin Desktop wallets - playlist by BTC Sessions
- How to use Hardware wallets - playlist by BTC Sessions
- How to use Multisig wallets - playlist by BTC Sessions
Video Tutorials for privacy using nodes
- How to use Whirlpool and Samourai with your node - by Ministry of Nodes
- Whirlpool and mixing guide - by Bitcoiner Guide
Currently not, but Umbrel has an application infrastructure, so third-party developers can add apps to Umbrel and publish them in its App Store.
This General FAQ guide will be constantly updated with findings that have been or will be reported in the issues section. Feel free to contribute via a merge request.