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5

File permissions change after copying to portable hard disk

rated 0 times [ 5] [ 0] / answers: 1 / hits: 2148 / 1 Year ago, tue, december 13, 2022, 8:34:56

I had copied a directory contain C language source code files and some shell scripts from my Ubuntu 12.10 64 bit laptop to a portable hard disk some time back. I had copied it under root login.
Now, today when I copied it back from the portable disk to the same laptop under root login, I observed that the file permissions had changed from the original 755 to 400 which caused some scripts to fail. How should I copy to the hard disk so that the directory and its content retain the permissions?

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ntlesslving

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Location: South Korea

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4 Years ago

answered 1 Year ago barted · Accepted Answer

Your external drive is using either FAT32 or NTFS, which do not support permissions. You either need to switch to a unix compatible format on the external drive, or you can use tar ( or the gui archive utility ) to preserve the correct permissions in the archive while it is stored on such a disk.