Dear Jack,
Jack <ostrof...@users.sourceforge.net> 于2022年7月27日周三 06:59写道： > This list prefers bottom posting. See below. > > On 2022.07.23 21:52, Fabulous Zhang Zheng wrote: > > Dear Jack, > > > > thanks for your reply, I reconfigured menuconfig. > > > > NFS v2 support I found is client support, and I can't still find v2 > > support > > for server ( sorry for not mentioning it in my ambiguous question ) > > I also looked up in forum and wiki, and recent posts seem to indicate > > the removal of nfs v2 server support. > > > > I followed this link for open genera > > ( https://archives.loomcom.com/genera/genera-install.html ) > > not in portage or an overlay. > > > > Best regards :) > > > > Jack <ostrof...@users.sourceforge.net> 于2022年7月24日周日 03:30写道： > > > > > On 2022.07.23 01:25, Fabulous Zhang Zheng wrote: > > > > Dear genteel users, > > > > > > > > > > > > Recently I'm trying to run Open Genera on Gentoo, which requires > > the > > > > old > > > > NFS v2 protocol for communication. > > > > > > > > I successfully run it on a Ubuntu 16.04 virtual machine, which > > > > enables it > > > > by default. > > > > > > > > In 5.18.12 it seems deprecated and not supported, am I supposed to > > > > revert > > > > back to a kernel version before its removal, or manually patch it > > > > into the > > > > current kernel ? Or there might be some more elegant methods ? > > > > > > > > It will be much appreciated if anyone could help :) > > > > > > > Looking at the config for 5.18.14, I see no evidence V2 has been > > > deprecated. However, your kernel may well have been configured to > > not > > > use V2. Note the kernel has different client and server settings > > for > > > this. Most likely, you just need to reconfigure and recompile your > > > kernel. > > > > > > Also, I don't see any genera available in portage. If it is in an > > > overlay, I would check for any documentation in the overlay about > > > necessary kernel configuration. > > > > > > Jack > > > > > > > > > I am aware that NFSv2 is likely to be deprecated due to security > concerns, but it hasn't happened yet in the Linux kernel. > > The entry (5.18.14) for "NFS server support (NFSD)" or CONFIG_NFSD: says > > ----- > Choose Y here if you want to allow other computers to access files > residing on this system using Sun's Network File System protocol. To > compile the NFS server support as a module, choose M here: the module > will be called nfsd. > > You may choose to use a user-space NFS server instead, in which case > you can choose N here. > > To export local file systems using NFS, you also need to install user > space programs which can be found in the Linux nfs-utils package, > available from http://linux-nfs.org/. More detail about the Linux NFS > server implementation is available via the exports(5) man page. > > Below you can choose which versions of the NFS protocol are available > to clients mounting the NFS server on this system. Support for NFS > version 2 (RFC 1094) is always available when CONFIG_NFSD is selected. > ----- > > In addition, from just a very brief search, it is likely that there are > other configuration files you may need to alter in order for the nfs > server to actually respond to V2 requests. This is likely how some > distributions have blocked V2 from the default configuration. Google > is your friend. > > Jack > > Sorry for the late reply, I found this commit <https://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=2c2c36c59fa1de2ff7fd28917e54700ecb39b730> of last November, which might be the reason. 2.5.4 might be the last version with such support. I emerged manually changed ebuild and $( rpcinfo -p localhost | grep nfs ) explicitly indicates the version 2 of nfs, which runs successfully. Thanks again for your dedicated and detailed reply, and also the bottom-posting reminder. Best regards :)
