Hi, On Thu, Oct 22, 2020 at 08:04:25PM +0000, Palle Lyckegaard wrote: > Hello. > > Trying to get a sparc64/sun4u system to work as a diskless client (with an > Armbian Linux as server-side part of the etup), I noticed some outdated > sections in the Diskless how-to. > > The NFS subsection (http://www.netbsd.org/docs/network/netboot/nfs.html) > indicates that "/export/client/swap" should be exported as a diretory, but > this does not make sense since "/export/client/swap" is the actual swap > file.
That doc has aged badly: "Most versions of linux only implement NFS2". That hasn't been true for _many_ years and indeed, by now the reverse is true. Most Linux distros prefer NFSv4, will provide NFSv3, but have NFSv2 disabled by default. Which plays merry hell with netbooting NetBSD off a Linux server, because that _needs_ NFSv2 (at least for a sparc64 client), making the addition of RPCNFSDOPTS="--nfs-version 2,3,4" to the appropriate config necessary. Yes, it took me staring at packet captures to figure that one out. > The files subsection (http://www.netbsd.org/docs/network/netboot/files.html) > notes that /etc/fstab should contain a entry like > > "nfsserver:/export/client/swap none swap sw,nfsmntpt=/swap" > > but according to diskless(8) the entry should be like > > "/swap none swap sw 0 0" > > which seems to work better. > > Comments on this? I just created /swap on the NFS root and enabled that as file-based swap, seems to work, but my v100 usually doesn't touch it since it is maxed out at 2 GB RAM and rarely goes into swap. Kind regards, Alex. -- "Opportunity is missed by most people because it is dressed in overalls and looks like work." -- Thomas A. Edison
