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Inode number after reboot

Is the amount of inode (for example, standard) guaranteed after rebooting, rebooting, or even after closing all processes and then reopening? For instance. whether it can be automatically generated when a file is opened, and not in the file system. Can an application rely on it? Should a file system implementation guarantee certain semantics?

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inodeis not a common concept for all file systems. Extand Linux VFSsees it inodeas a data structure in which file information is stored. But, for example, they FAT32either NTFShave no idea what it is inodebecause they simply do not use this concept.

Having said that, I will try to give answers to your questions:

Is the amount of inode (for example, standard) guaranteed after a reboot, reboot, or even after it has been closed by all processes and then opened again?

It depends, if the file system is of type Ext, then the number inodeis stored in a file i_inoinside struct inodethat is written to disk , so yes, in this case, if the file is the same (not another file with the same name), then the number is inodeguaranteed to be the same.

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