file owner cannot chmod file, report operation not permitted
27,825
Check to see if the file is set as immutable.
root@hostname:/tmp# lsattr ./a.out
----i--------e-- a.out
That i means the file is immutable and cannot be changed. You have to use chattr -i ./a.out to clear the flag, and then +i to re-enable after making changes.
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Author by
Hao Liu
Updated on September 18, 2022Comments
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Hao Liu almost 2 years
- use root copy or create a file
a.out chown user:user a.out, changea.outowner to user- now change to user,
su user - use user to chmod a.out,
chmod 755 a.out - Ok, problem is here. step 4 will output :
chmod: ./a.out: Operation not permitted
I run these step on SUSE, it's work. And chmod can use by file owner or root. So, i think this maybe a bug on Ubuntu. Anyone know this?
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Rinzwind over 7 years"So, i think this maybe a bug on Ubuntu." doubt it. More likely the directory above where you did this? Or immutable flag? Or ACL.
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muru over 7 yearsCould not reproduce
- use root copy or create a file
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Hao Liu over 7 years. directory is user, but .. is root
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marosg over 7 yearsCan you post output of the command ? And also output of "lsattr a.out"
