Simple: move your node from Umbrel to Raspiblitz, Embassy or MyNode. See option 6 or 7 from my SHTF guide.
Umbrel fucked up the whole folder structure in v 0.5 so it will be a nigtmare for you to dig up into docker repositories and yml files to fix that. Total mess.
Basically, make an offline backup of your LND database, out of your node disk, then install any other node bundle with LND and let it start sync a bit. Then stop it, shut down, and copy over the backup files of wallet.db and channel.db, as described. Start the node and voila, all back again.
This closes all of your channels right?
reply
No, option 6 and 7 is not about SCB backup. Is full copy of the dbs. Pay attention to details explained in that guide.
reply