Hi,

Just wanted to say Im also having an EdgeRouter 6 running.
If you only use the internal Emmc you are pretty much restrained, but you can 
use both.

Im booting off the internal emmc and using an usb SD card:

----------------------------------------------------------
gateway$ df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/sd2a      3.3G    116M    3.0G     4%    /
/dev/sd1e     38.7G    4.3G   32.5G    12%    /usr
/dev/sd1f     19.1G    5.8G   12.4G    32%    /var
----------------------------------------------------------

 Don’t know if I’d start with Octeon now, the platform is pretty much EOL - who 
knows how long it will be supported by OpenBSD?
I’d go with ARM nowadays, but if you still plan this setup it’s pretty 
reliable. This thing is rock solid.

The ethernet is working fine, I think SFP is a no go.
Keep in mind that this is a big endian platform, you might run into hassle that 
you have to maintain your file systems elsewhere or maintain the SD card 
somehow.
I think mounting BE ffs on normal OpenBSD x86 is pretty much not supported, I 
can’t remember exactly but I had some kind of trouble with this in the past.

So you have to think about what happens if the system becomes unbeatable, can 
you boot elsewhere from your network…

best regards,
Georg

> Am 17.07.2025 um 10:51 schrieb Christoph Liebender <christ...@liebender.dev>:
> 
> Hello misc@,
> 
> I'm about to install OpenBSD onto an Edgerouter 6P - inspired by [1]. Since 
> this router only has 4GB of eMMC, I'm wary of installing all sets.
> 
> FWIW, this is not the first time that I skip sets in an install, albeit that 
> in those cases, issues came up afterwards. Particularly, I once chose to skip 
> the X subsystem on one install only to find out that they are required for 
> some ports. Considering that adding sets afterwards is a little more 
> complicated than ftp && cp, I'm asking questions here before I find myself in 
> that situation again.
> 
> So, I definitely will not ever find myself in a situation where I need X on 
> the Edgerouter - I'm quite sure about that - thus, I can safely skip 
> x*77.tgz. (right?) What about comp77.tgz? Is it possible that some ports - 
> talking about pkg_add-ing them, not building them from source - require the 
> "libraries" that come with comp? Quoting the FAQ here: "The compiler 
> collection" (probably wouldn't want to compile anything on that CPU, too 
> RISCy...) "headers" (won't need those then) "and libraries" (do I need 
> them???).
> 
> Are my assumptions correct? Is there anything else to be aware of when 
> skipping sets?
> 
> Not talking about game77 - I doubt anything depends on that :)
> 
> - Christoph
> 
> [1]: 
> https://kirill.korins.ky/articles/edgerouter-4-under-openbsd-with-failover-wan/
> 

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