How can you make changes to umbrel-lnd.conf persist after LND restart?

Support and Troubleshooting
1

My lnd won’t start and in order to troubleshoot it I need to modify umbrel-lnd.conf directly (web GUI unavailable when LND doesn’t start).
But the file is rewritten by what’s configured in the web GUI, overwriting any changes I make to it.
How can I make my modifications to the file persist?

2

You have to edit the lnd.conf instead of the generated umbrel-lnd.conf:

  • ssh into umbrel: ssh umbrel@umbrel.local
  • edit lnd.conf: nano umbrel/app-data/lightning/data/lnd/lnd.conf
  • restart lnd
3

Tried it but that doesn’t seem to work. I put in that log file “sync-freelist=true” but the umbrel-lnd.conf file still has “sync-freelist=false”, and when lnd starts, it’s showing it as “false” indeed, not using my lnd.conf file.
Stuck in this loop when starting lnd:

2024-07-24 22:32:38.627 [WRN] LTND: Config ‘bitcoin.active’ is deprecated, please remove it
2024-07-24 22:32:38.627 [INF] LTND: Version: 0.18.0-beta commit=v0.18.0-beta, build=production, logging=default, debuglevel=info
2024-07-24 22:32:38.649 [INF] LTND: Active chain: Bitcoin (network=mainnet)
2024-07-24 22:32:38.650 [INF] RPCS: RPC server listening on 0.0.0.0:10009
2024-07-24 22:32:38.661 [INF] RPCS: gRPC proxy started at 0.0.0.0:8080
2024-07-24 22:32:38.662 [INF] LTND: Opening the main database, this might take a few minutes…
2024-07-24 22:32:38.716 [INF] LTND: Opening bbolt database, sync_freelist=false, auto_compact=false
2024-07-24 22:32:38.693 [ERR] RPCS: [/lnrpc.Lightning/GetInfo]: waiting to start, RPC services not available
2024-07-24 22:32:38.719 [INF] LTND: Shutdown complete

4

First off: If you plan or already have more than 30 channels, don’t set it to true. It’ll kill your LND performance.

Secondly, check your GUI settings in the advanced settings of the LND app. I think GUI trumps lnd.conf.

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