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The /proc/mounts file should indeed contain the options (including default options for each filesystem), however the rootfs entry that you picked out is just a ramfs over which the actual root block device gets mounted - there should be another entry for the real device e.g. $ mount | grep ' / ' /dev/mapper/t60p-root on / type ext4 (rw,errors=remount-ro) $ ...


The problem is that you are not understanding what "rootfs" means. If you cat /proc/mount, or filter the output with grep or awk, you do indeed get a list of all them mounts and the options as indicated by steeldriver. The first line, rootfs / rootfs rw 0 0 is not your root partition, it is used by the kernel. What is rootfs? Rootfs is a special ...

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