Can't read and write to target executable

[Drjacky]

Node.js Version

v21.6.2

NPM Version

10.8.1

Operating System

macOS

Subsystem

Other

Description

I followed these steps https://nodejs.org/api/single-executable-applications.html When I run

npx postject hello NODE_SEA_BLOB sea-prep.blob \
    --sentinel-fuse NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2 \
    --macho-segment-name NODE_SEA

I get:

Start injection of NODE_SEA_BLOB in hello... Error: Can't read and write to target executable

Related to: https://github.com/nodejs/help/issues/4313#issuecomment-2154980165

Minimal Reproduction

No response

Output

No response

Before You Submit

• [X] I have looked for issues that already exist before submitting this
• [X] My issue follows the guidelines in the README file, and follows the 'How to ask a good question' guide at https://stackoverflow.com/help/how-to-ask

[sudospaes]

First, check that the hello binary file is available and your blob name is exactly sea-prep.blob. :) I hope I helped you

[Drjacky]

First, check that the hello binary file is available and your blob name is exactly sea-prep.blob. :) I hope I helped you

Yup, the binary is there. the sea-prep.blob is there.

[avivkeller]

Make sure you are calling the binary from a user account that has access to write it and the directory it's in (but I'm not a SEA expert)

[Drjacky]

Make sure you are calling the binary from a user account that has access to write it and the directory it's in (but I'm not a SEA expert)

Okay, running by sudo solved the initial issue but, the generated bin is not runnable on macOS:

[1] 8752 killed hello --version

[avivkeller]

@nodejs/single-executable PTAL, thanks!

[KalharaBatangala]

The executable file might not have the necessary permissions. Check for permissions.

[tonidy]

Need to run

chmod 755 hello

[avivkeller]

Per the comments above