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For every $500 you spend, we will provide you with a $500 credit on your account*

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*The maximum is $4000 in credits, Offer valid till December 6th, 2024, New Customers Only, Credit will be applied after purchase and expires after six (6) months

Ubuntu AppImage Exec Format Error | Resolved

by | Feb 28, 2024

In the context of Ubuntu AppImage, the “exec format error” may occur due to several reasons. Read the article to learn more. At Bobcares, with our Server Management Service, we can handle your issues.

Fixing “exec format error” in Ubuntu & AppImages

The “exec format error” usually means that the file is not in a usable format that the system is aware of or supports, hence it cannot be run by the system. Some of the reasons behind the error are as follows:

1. Usually, there are specific AppImages for specific CPU models. We may receive the message “exec format error” if we try to start an AppImage that has not been compiled for the architecture of the system.

2. When trying to run the file, we can get an “exec format error” if it was corrupted during download or storage.

3. Sometimes, the system doesn’t recognize AppImage as a file that runs due to filesystem faults or limits.

4. Also, to be used, the files need runtime rights. An “exec format error” could appear if the AppImage does not have the proper rights set up.

5. Files in the AppImage format may not be natively accessible on some filesystems. So, make sure the filesystem from which we are trying to run can handle runnable files, such as ext4.

6. Occasionally, there could be problems with compatibility between the Linux kernel or other system components and the AppImage format. These problems might be solved by updating the system to the most recent software versions.

7. It’s unusual that the system’s kernel setup doesn’t permit running AppImage files. In a typical Ubuntu setup, this is unlikely to occur.

Steps to Fix the Error

1. Make sure the system is running the AppImage on the right CPU architecture. By using the uname -m tool, we may verify the architecture of the system by comparing it with the one that the AppImage supports. If there is any issue, obtain an AppImage version that is in line with the design of the system.

2. Make sure there are no corruptions by checking the AppImage file’s integrity. Verify the digital signature or checksum of the file against the values supplied by the developer or source. Should the checksums diverge, obtain the AppImage from a reliable source once more.

3. Check if the permissions are set for the AppImage file. If executable permissions are needed, use the chmod command:

ubuntu appimage exec format error

4. It is possible that some filesystems will not allow files in the AppImage format to be executed. Try running the AppImage again after moving it to a compatible filesystem, like ext4.

5. Ensure that the kernel and other system components are up to date on the Ubuntu system. Because updating may fix problems with compatibility between the AppImage format and the OS.

6. Occasionally, the kernel setting might not allow the running of AppImage files. It is doubtful that this would occur in a typical Ubuntu installation, though. So, we can check Ubuntu forums or communities if we think there may be such problems.

7. Lastly, try running the AppImage in a virtual environment or on a different machine if we can, preferably with a default Ubuntu setup. This can assist in figuring out whether the problem is unique to the system setup.

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Conclusion

This article offers some of the troubleshooting steps we can try to fix the “exec format error” in Ubuntu and AppImages.

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