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util: detect and warn when using exFAT on macOS

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exFAT is known to cause corruption on macOS. See #28552.

Therefore we should warn when using this fs format for either the blocks
or data directories on macOS.

Co-authored-by: l0rinc <pap.lorinc@gmail.com>
This commit is contained in:
willcl-ark
2024-12-05 22:06:13 +00:00
committed by will
parent 2bb06bcaf2
commit db3228042b
4 changed files with 61 additions and 0 deletions
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doc/files.md
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@@ -18,6 +18,8 @@
- [Installed Files](#installed-files)
- [Filesystem recommendations](#filesystem-recommendations)
## Data directory location
The data directory is the default location where the Bitcoin Core files are stored.
@@ -160,3 +162,8 @@ This table describes the files installed by Bitcoin Core across different platfo
- *Italicized* files are only installed in source builds if relevant CMake options are enabled. They are not included in binary releases.
- README and bitcoin.conf files are included in binary releases but not installed in source builds.
- On Windows, binaries have a `.exe` suffix (e.g., `bitcoin-cli.exe`).
## Filesystem recommendations
When choosing a filesystem for the data directory (`datadir`) or blocks directory (`blocksdir`) on **macOS**,the `exFAT` filesystem should be avoided.
There have been multiple reports of database corruption and data loss when using this filesystem with Bitcoin Core, see [Issue #31454](https://github.com/bitcoin/bitcoin/issues/31454) for more details.