Error: EROFS: read-only file system (Snap and AppImage) about tidgi-desktop

[ydewit]

I am not sure about AppImage's, but it seems that Snap has a standard way of dealing with this since all executable live in a RO file-system. For example, see: https://snapcraft.io/docs/environment-variables and more specifically SNAP_DATA: it seems that we want to use this as your data folder. I am not sure about logs, though, and whether there is a standard location for those.

[linonetwo]

Thanks for trying this App.

Seems it is Log service that failed to create a folder to place its log.

I haven't used Ubuntu for a time, can you try mkdir /tmp/.mount_Tiddly0GVvKP/logs/ in your terminal, to see if this command is executable?

[ydewit]

Here is the result of trying to create the missing folder:

$ mkdir /snap/tiddlygit/11/logs/
mkdir: cannot create directory ‘/snap/tiddlygit/11/logs/’: Read-only file system

This is snap, but it happens the same for AppImage. It tries to create log file(s) in the tiddlygit snap read-only filesystem instead of a /var/... folder.

[linonetwo]

Okay, I'm using MacOS, it will create log inside App folder in MacOS.

Maybe I can assign a different location for Linux.

But I can see in your previous log, it is trying to create under /tmp/.mount_Tiddly0GVvKP/logs/
Why are you saying it is trying to create under /snap/tiddlygit/11/logs/ ?

---

On I see, you are trying snap instead.

But as far as I know, /tmp is ok to create folder, why is it read only...

[ydewit]

Hi, one path is when using AppImage and the other when using Snap.

AppImage (the /tmp/.mount_TiddlyqzRREm/logs/ path is different every time you run the image):

$ ~/Downloads/TiddlyGit-0.2.1.AppImage 
A JavaScript error occurred in the main process
Uncaught Exception:
Error: EROFS: read-only file system, mkdir '/tmp/.mount_TiddlyqzRREm/logs/'
    at Object.mkdirSync (fs.js:823:3)
    at /tmp/.mount_TiddlyqzRREm/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:654:20
    at Array.reduce (<anonymous>)
    at mkDirForFile (/tmp/.mount_TiddlyqzRREm/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:642:27)
    at Object.FileStreamRotator.getStream (/tmp/.mount_TiddlyqzRREm/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:519:5)
    at new DailyRotateFile (/tmp/.mount_TiddlyqzRREm/resources/app.asar/node_modules/winston-daily-rotate-file/daily-rotate-file.js:80:57)
    at Object.<anonymous> (/tmp/.mount_TiddlyqzRREm/resources/app.asar/build/libs/log/index.js:10:5)
    at Module._compile (internal/modules/cjs/loader.js:967:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1004:10)
    at Module.load (internal/modules/cjs/loader.js:815:32)

The /tmp path here

Snap (the /snap/tiddlygit/11/logs/ path is really a read-only filesystem and it is not possible to create a folder here):

$ tiddlygit
A JavaScript error occurred in the main process
Uncaught Exception:
Error: EROFS: read-only file system, mkdir '/snap/tiddlygit/11/logs/'
    at Object.mkdirSync (fs.js:823:3)
    at /snap/tiddlygit/11/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:654:20
    at Array.reduce (<anonymous>)
    at mkDirForFile (/snap/tiddlygit/11/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:642:27)
    at Object.FileStreamRotator.getStream (/snap/tiddlygit/11/resources/app.asar/node_modules/file-stream-rotator/FileStreamRotator.js:519:5)
    at new DailyRotateFile (/snap/tiddlygit/11/resources/app.asar/node_modules/winston-daily-rotate-file/daily-rotate-file.js:80:57)
    at Object.<anonymous> (/snap/tiddlygit/11/resources/app.asar/build/libs/log/index.js:10:5)
    at Module._compile (internal/modules/cjs/loader.js:967:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1004:10)
    at Module.load (internal/modules/cjs/loader.js:815:32)

[linonetwo]

I tried to change the log folder in Linux, maybe you can try out latest version.

[ydewit]

It works now:

(node:124858) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
Gtk-Message: 01:11:33.603: Failed to load module "appmenu-gtk-module"

[linonetwo]

@ydewit that warning is ok, it is caused by 3rd party libraries.

Glad to see this works in Linux, there are still some bugs as this is in alpha, It will take some time to improve it. I don't have much spare time these days.