Good morning, reading the pivot_root man page (https://man7.org/linux/man-pages/man2/pivot_root.2.html) there seems to be an error in the example source program "pivot_root_demo.c". In particular, there is a wrong check on the return value of mount(2). https://man7.org/linux/man-pages/man2/mount.2.html#RETURN_VALUE The error is in this line if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL) == 1) that should be if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL) == -1) Thank you for your work, kind regards -- Davide Antonino Giorgio http://giorgiodavide.it
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