- Lecture videos on number theory?
- Can a physical parameter originally defined as a scalar be shown to be a tensor through its relationship to another parameter that is a tens
- Cardinality of a set of functions into $\Bbb Q$
- Irreversibility of dispersion phenomena
- find a vector which is perpendicular to the vector (-2,5,4) and (1,3,2)
- show that the recursive sequence converges to $\sqrt r$
- Big O Notation - Show that polynomial is $O(x^2)$ Proof Question
- Derivative problem: No $x$ in equation and cubed roots
- How to formalize “Division by zero” in a proof about groups?
- Markov Chain: Finding average rate of service and fraction of customers serviced
- Example of a (transient, countable state) Markov Chain with no invariant measure?
- A connectedness question
- Inverse Fourier Transformation of $1- \frac {s^2}{(1+s^2)^2}$
- Why using Levi-Civita field?
- Finding $P(3≤X≤4\mid Y=2)$
- Is this function subaddtive
- How do I solve numerically the differential equation of the form : $(z''/[1+(z')^2]^{3/2})+(0.1928529/x)=2+(50.99203)*z$?
- Does the radius of convergence for a power series change when you multiply it by a constant?
- How to prove the upper and lower bound of $ |\lambda_i(A)| $ for non-symmetry matrices?
- maximum distance between n points on unit circle

# Relationship between ONIE and Networking OS

Can someone explain the relationship between ONIE and some installed Networking OS, like DNOS9/FTOS in a simple way?

First, when I was reading about upgrading ONIE, I saw that when upgrading they need you to have a minimum previous version of ONIE (obviously), and it also seems linked to BIOS and CPLD.

Now, when looking requirements for upgrading the Networking OS, in this case DNOS, they have a requirement on the minimum ONIE version (so far, so good), however: The DNOS image seems to contain images for 1) boot-flash 2) boot-selector 3) CPLD. Now both ONIE and DNOS are somehow linked to the CPLD for example.

So my questions:

1) In case I would like to upgrade all parts of the system to the most recent releases, what would be the correct order to upgrade in order to fulfill all dependencies at all times?

2) What is in fact the actual order of the parts of the system booting? BIOS -> Boot-Selector (Grub) -> Boot-Flash (???) -> ONIE -> NOS? (What exactly is the Boot-Fl