ARM32 builds

[ArthurusDent]

Is your feature request related to a problem? Please describe.
I'm using restic-server running on a Raspberry Pi 2 and would like to manage the repository with backrest.

Describe the solution you'd like
Would it be possible to include ARM32 builds?

Additional context
Is it safe to use restic-server and backrest together? Anything I should look out for?

[garethgeorge]

Hey, I can definitely add arm32 builds.

Re: restic-server with backrest is a totally fine configuration. Just be aware that backrest schedules snapshot indexing after it does a backup, so if you’re not using it to make backups you’ll have to click the “index snapshots” button on the repo overview page when you want to browse your latest data.

[ArthurusDent]

Ok, cool!

Thanks for the advice!

[hello-world-dot-c]

I'd like that, too. Many (most?) NAS use 32-bit ARM devices and their own flavor of Linux. Would like to try running this on mine.

[garethgeorge]

Went ahead and added arm32 builds in the latest release but I don't have a device to test on, PTAL and let me know if those work for you.

[hello-world-dot-c]

The program runs fine on my NAS, the web interface comes up and I can add a user and repo (using local/direct path). The repo access starts ok and I can list snapshots but when I try to browse a snapshot, after a while I get the following error in the web interface:

Failed to list snapshot files: [unknown] failed to list snapshot files: failed to list snapshot files: command "/opt/bin/restic ls --json a9b1d86c813eae8c8e4909e335812d5ea2dbdc9b580bcc978ce8ce789a31d9ab / -o sftp.args=-oBatchMode=yes" failed: failed to parse JSON: json: cannot unmarshal number 2147484159 into Go struct field LsEntry.mode of type int Process STDOUT: {"time":"2024-02-29T12:05:18.764821+01:00","parent":"01f3eae9b26c8dfbaa8075d17078596f3bb39a889166c455cfc9bd58733e2f51","tree":"dc9c0faffc98711cb86e83acc5e2c3ba3d5009bd88fe934b4ec48be601a5ec07","paths":["C:\\"],"hostname":"MYHOST","username":"MYHOST\\User","tags":["C:\\"],"program_version":"restic 0.16.4","id":"a9b1d86c813eae8c8e4909e335812d5ea2dbdc9b580bcc978ce8ce789a31d9ab","short_id":"a9b1d86c","struct_type":"snapshot"} {"name":"C","type":"dir","path":"/C","uid":0,"gid":0,"mode":2147484159,"permissions":"drwxrwxrwx","mtime":"2024-02-29T11:54:37.8576422+01:00","atime":"2024-02-29T11:54:37.8576422+01:00","ctime":"2024-02-29T11:54:37.8576422+01:00","struct_type":"node"}

MYHOST resp. MYHOST\User come from the Windows computer I made the backup of "C:\" from.

[garethgeorge]

Really interesting -- this is probably happening because int's are actually 32 bit on arm32 (which makes sense :) ) so the mode value is too big for the struct I defined:

type LsEntry struct {
        Name  string `json:"name"`
        Type  string `json:"type"`
        Path  string `json:"path"`
        Uid   int    `json:"uid"`
        Gid   int    `json:"gid"`
        Size  int    `json:"size"`
        Mode  int    `json:"mode"`
        Mtime string `json:"mtime"`
        Atime string `json:"atime"`
        Ctime string `json:"ctime"`
}

The fix is probably to make all of those fields int64 (and thankfully it's already transmitted as 64bit on the wire https://github.com/garethgeorge/backrest/blob/main/proto/v1/service.proto#L112-L123).

[hello-world-dot-c]

Thanks, Gareth. Is this still on the radar? Sounds like this would be easy to fix.

[garethgeorge]

Hi, this is actually fixed for some time now :) arm32 builds should be working now. I'll go ahead and mark this as closed -- the fixes should be bundled up in the latest release. Please re-open if you're still seeing problems w/arm32.

[hello-world-dot-c]

Thanks, I have updated the file but I am getting this error which looks pretty much the same as last time:

Failed to list snapshot files: [unknown] failed to list snapshot files: failed to list snapshot files: command "/opt/bin/restic ls --json de50667cb65fe72fa254cf6ce783be126eacf5f99c225491cf58f43c39d0e5d8 / -o sftp.args=-oBatchMode=yes" failed: failed to parse JSON: json: cannot unmarshal number 2147484159 into Go struct field LsEntry.mode of type int Process STDOUT: {"time":"2024-03-19T12:05:11.1679065+01:00","parent":"87a9240f7a451977fb62a513af5f49da3607a629b68f90d4df40a2a05f866d8a","tree":"a8bb80d76833a6d9cd0a53d9e9ffe8eac52c8b594759c5a28f282e1940bc70c3","paths":["C:\\"],"hostname":"MYHOST","username":"MYHOST\\User","tags":["C:\\"],"program_version":"restic 0.16.4","id":"de50667cb65fe72fa254cf6ce783be126eacf5f99c225491cf58f43c39d0e5d8","short_id":"de50667c","struct_type":"snapshot"} {"name":"C","type":"dir","path":"/C","uid":0,"gid":0,"mode":2147484159,"permissions":"drwxrwxrwx","mtime":"2024-03-15T09:15:02.4446803+01:00","atime":"2024-03-15T09:15:02.4446803+01:00","ctime":"2024-03-15T09:15:02.4446803+01:00","struct_type":"node"}

I don't have the right to re-open the issue, though.