Bit 60 is the one corresponding to ReadOnly, not 50. Fix this.
<citerefentry
project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
- <para>If both bit 50 and 59 are set for a partition (i.e. the partition is marked both read-only and
+ <para>If both bit 60 and 59 are set for a partition (i.e. the partition is marked both read-only and
marked for file system growing) the latter is typically without effect: the read-only flag takes
precedence in most tools reading these flags, and since growing the file system involves writing to
the partition it is consequently ignored.</para>