error: data decryption failed

[Schweber]

I get the following:

$ rustic -P slim -P Pcloud backup                                                                                                             
[INFO] using config /home/sperber/.config/rustic/slim.toml
[INFO] using config /home/sperber/.config/rustic/Pcloud.toml
[INFO] repository rclone:Pcloud:Rustic: password is correct.
[INFO] using cache at /home/sperber/.cache/rustic/f35f1623c65f6e8ed0424d28afc17d88d13bc4dc1687c768c732d4ec1403ccbd
error: data decryption failed

If i delete the local file and run the command again, it first downloads something from the remote server but then fails with exactly the same output.

Is there something i can do? Can rustic e.g. go back to the last "good" entry point instead of failing immediately?

[aawsome]

Sorry for the late reply!
In fact, there have been some issues with pCloud (I'm just assuming you're using that as storage), as you can see in the restic forum. So this could be a storage corruption...

I am wondering which file(s) exactly got corrupted.
Can you please run rustic check on this repo and report the output? That said, we might as well have non-optimal error handling there which needs to be improved.

[Schweber]

It is Pcloud and i'm getting the same error:

rustic check -P slim -P Pcloud --log-level debug
[INFO] using config /home/sperber/.config/rustic/slim.toml
[INFO] using config /home/sperber/.config/rustic/Pcloud.toml
[DEBUG] (1) rustic_backend::rclone: starting rclone via ["rclone", "serve", "restic", "--addr", "localhost:0", "Pcloud:Rustic"]
[DEBUG] (1) rustic_backend::rclone: using REST backend with url Pcloud:Rustic.
[DEBUG] (2) reqwest::connect: starting new connection: http://127.0.0.1:35415/
[DEBUG] (2) hyper_util::client::legacy::connect::http: connecting to 127.0.0.1:35415
[DEBUG] (2) hyper_util::client::legacy::connect::http: connected to 127.0.0.1:35415
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[INFO] repository rclone:Pcloud:Rustic: password is correct.
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[INFO] using cache at /home/sperber/.cache/rustic/f35f1623c65f6e8ed0424d28afc17d88d13bc4dc1687c768c732d4ec1403ccbd
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[00:00:00] checking Index in cache...     ████████████████████████████████████████  34.51 MiB/34.51 MiB  1.97 GiB/s   (ETA -)[00:00:00] reading index...               ████████████████████████████████████████          0[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:35415)
[DEBUG] (1) rustic_backend::rclone: killing rclone.
error: data decryption failed

It would be nice if the error output of rustic was more informative and instructional (what likely happened, what can i do about it etc.).

Best of all would be an automatic repair or rollback to a working snapshot by rustic, if that is possible.

[aawsome]

Yes fully agree that the error should at least tell which files was affected.

About autmatic repair - that's nothing we want to achieve. The main point is that commands should hold their repository access properties even in error cases, e.g.:

• check does not modify the repository
• backup only adds new files to the repository

But there is already repair which should be a candidate for repairing all kinds of defects in the repository.

About your case: Can you run the same with higher log level, e.g. with --log-level=debug?

[Schweber]

rustic repair index -P slim -P Pcloud --log-level debug
[INFO] using config /home/sperber/.config/rustic/slim.toml
[INFO] using config /home/sperber/.config/rustic/Pcloud.toml
[DEBUG] (1) rustic_backend::rclone: starting rclone via ["rclone", "serve", "restic", "--addr", "localhost:0", "Pcloud:Rustic"]
[DEBUG] (1) rustic_backend::rclone: using REST backend with url Pcloud:Rustic.
[DEBUG] (2) reqwest::connect: starting new connection: http://127.0.0.1:37031/
[DEBUG] (2) hyper_util::client::legacy::connect::http: connecting to 127.0.0.1:37031
[DEBUG] (2) hyper_util::client::legacy::connect::http: connected to 127.0.0.1:37031
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[INFO] repository rclone:Pcloud:Rustic: password is correct.
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[INFO] using cache at /home/sperber/.cache/rustic/f35f1623c65f6e8ed0424d28afc17d88d13bc4dc1687c768c732d4ec1403ccbd
[00:00:00] listing packs...               ⠁[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[00:00:00] listing packs...[00:00:00] reading index...               ████████████████████████████████████████          0[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37031)
[DEBUG] (1) rustic_backend::rclone: killing rclone.
error: data decryption failed

rustic repair snapshots -P slim -P Pcloud --log-level debug
[INFO] using config /home/sperber/.config/rustic/slim.toml
[INFO] using config /home/sperber/.config/rustic/Pcloud.toml
[DEBUG] (1) rustic_backend::rclone: starting rclone via ["rclone", "serve", "restic", "--addr", "localhost:0", "Pcloud:Rustic"]
[DEBUG] (1) rustic_backend::rclone: using REST backend with url Pcloud:Rustic.
[DEBUG] (2) reqwest::connect: starting new connection: http://127.0.0.1:37171/
[DEBUG] (2) hyper_util::client::legacy::connect::http: connecting to 127.0.0.1:37171
[DEBUG] (2) hyper_util::client::legacy::connect::http: connected to 127.0.0.1:37171
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37171)
[INFO] repository rclone:Pcloud:Rustic: password is correct.
[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37171)
[INFO] using cache at /home/sperber/.cache/rustic/f35f1623c65f6e8ed0424d28afc17d88d13bc4dc1687c768c732d4ec1403ccbd
[00:00:00] reading index...               ████████████████████████████████████████          0[DEBUG] (2) hyper_util::client::legacy::pool: reuse idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (2) hyper_util::client::legacy::pool: pooling idle connection for ("http", 127.0.0.1:37171)
[DEBUG] (1) rustic_backend::rclone: killing rclone.
error: data decryption failed