Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 5:30 PM, John Floren slawmas...@gmail.com wrote: Has anyone here successfully set up nfsserver to share Plan 9 files with Unix machines? The examples given in the man pages are rather... opaque. All I want to do is share one directory tree (/lib/music, in particular) with a number of independent Linux laptops and workstations. I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. John Hi John I was wondering what happend to your attempt in setting up the nfsserver? I am also trying to get it up because my client is using openbsd and It doesnt have 9pfuse or v9fs support. From all the replies I seem to get a general idea of what needs to be done I did this @the server % aux/nfsserver -a tcp!thinktank -c /lib/ndb/nfs % aux/pcnfsd % aux/portmapper @client # mount -o soft,intr thinktank:thinktank /mnt/nfs NFS Portmap: RPC: Program not registered in /sys/log/nfs thinktank Feb 13 07:07:05 get port thinktank Feb 13 07:07:32 get port It seems like I maybe having authentication issue, but not partifularly sure where to check. man nfsserver seems to indicate that the client should have a static ip address is this correct? the client are using dhcp to configure there ip. I am trying to add static aliases to clients to see if will work, but wanted to check everyone else's thought. -- http://www.fernski.com
Re: [9fans] Configuring NFS
nfsserver only serves NFS version 2 and not all clients are smart enough to try multiple NFS versions, so you may have to specify it, typically like this (in /etc/fstab): nfs:/ /n/9nfs nfsvers=2,proto=udp,user,bg,intr or as a command: mount -o bg,intr,-2 thinktank:thinktank /mnt/nfs Consult your (l)unix manuals for the precise options.
Re: [9fans] Configuring NFS
On Tue, 09 Jun 2009 09:48:31 -0700 Roman V Shaposhnik r...@sun.com wrote: I have very little experience working with the in-kernel support for 9P. Somehow 9P and being a superuser feel mutually exclusive to me. Pick a task, any task. Toss a coin. If the coin lands heads up, a program to accomplish said task under un*x will need to be root for at least part of it's execution time. ;) -- Ethan Grammatikidis The lyf so short, the craft so long to lerne. -- Chaucer
Re: [9fans] Configuring NFS
Hi John, it took me sometime to go through the old backups but it seems that the NFS setup is gone by now. You can still ask questions, if you want to, but I won't be able to send you all the working conf. files. On Tue, 2009-06-02 at 11:34 -0700, John Floren wrote: I'd like to use the 9p mounting available in Linux, but it doesn't seem to work in this case. I try mount -t 9p glenda /mnt (glenda is my cpu/file server) and get: mount: wrong fs type, bad option, bad superblock on glenda, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.type helper program) In some cases useful info is found in syslog - try dmesg | tail or so If I do mount -t 9p 192.168.18.180 /mnt, using the file server IP, I just get mount: permission denied But dmesg shows [88617.144804] p9_errstr2errno: server reported unknown error cannot attach as none before authentication, ONLY when I use the IP address--nothing appears when I use the /etc/hosts alias glenda. What am I missing? I have very little experience working with the in-kernel support for 9P. Somehow 9P and being a superuser feel mutually exclusive to me. Thus, I can only recommend 9pfuse. It worked quite well for the limited application I needed it for. Thanks, Roman.
[9fans] Configuring NFS
Has anyone here successfully set up nfsserver to share Plan 9 files with Unix machines? The examples given in the man pages are rather... opaque. All I want to do is share one directory tree (/lib/music, in particular) with a number of independent Linux laptops and workstations. I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. John -- I've tried programming Ruby on Rails, following TechCrunch in my RSS reader, and drinking absinthe. It doesn't work. I'm going back to C, Hunter S. Thompson, and cheap whiskey. -- Ted Dziuba
Re: [9fans] Configuring NFS
On Tue, 2009-06-02 at 10:30 -0700, John Floren wrote: Has anyone here successfully set up nfsserver to share Plan 9 files with Unix machines? The examples given in the man pages are rather... opaque. All I want to do is share one directory tree (/lib/music, in particular) with a number of independent Linux laptops and workstations. I used it in combination with Solaris. I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. Whether or not to use NFS depends greatly on what is on the other end. What kind of UNIX? Thanks, Roman.
Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 10:35 AM, Roman V. Shaposhnik r...@sun.com wrote: On Tue, 2009-06-02 at 10:30 -0700, John Floren wrote: Has anyone here successfully set up nfsserver to share Plan 9 files with Unix machines? The examples given in the man pages are rather... opaque. All I want to do is share one directory tree (/lib/music, in particular) with a number of independent Linux laptops and workstations. I used it in combination with Solaris. Do you still have the configuration? I'm looking at the man page for nfsserver but wondering what the machine 'ivy' does, and what exactly 'pie' and 'yoshimi' are doing, etc. I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. Whether or not to use NFS depends greatly on what is on the other end. What kind of UNIX? Like I said, it's a collection of Linux machines, mostly running Debian, Ubuntu, and Redhat. John -- I've tried programming Ruby on Rails, following TechCrunch in my RSS reader, and drinking absinthe. It doesn't work. I'm going back to C, Hunter S. Thompson, and cheap whiskey. -- Ted Dziuba
Re: [9fans] Configuring NFS
I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. I use aquarela to serve cifs to windows boxen but NFS seems preferable given your clients are Linux. -Steve
Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 11:19 AM, Roman V. Shaposhnik r...@sun.com wrote: On Tue, 2009-06-02 at 11:03 -0700, John Floren wrote: On Tue, Jun 2, 2009 at 10:35 AM, Roman V. Shaposhnik r...@sun.com wrote: On Tue, 2009-06-02 at 10:30 -0700, John Floren wrote: Has anyone here successfully set up nfsserver to share Plan 9 files with Unix machines? The examples given in the man pages are rather... opaque. All I want to do is share one directory tree (/lib/music, in particular) with a number of independent Linux laptops and workstations. I used it in combination with Solaris. Do you still have the configuration? I might. For Solaris NFS was *the* only choice. For Linux I have abandoned NFS approach in favor of native 9P. You should be aware of the fact that nfsserver can only speak NFS v.2 which is *really* old. I'm looking at the man page for nfsserver but wondering what the machine 'ivy' does, and what exactly 'pie' and 'yoshimi' are doing, etc. If you have practical questions -- feel free to ask them. I'll try to dig bits and pieces of my Solaris setup for you later this week. So far, I can tell you this much: nfsserver is NFS to 9P translator. Thus you can hide a whole bunch of 9P-aware services behind a single nfsserver by specifying multiple -a options (in fact these 9P services don't even have to be remote machines). Each individual -a entry will become a single NFS export share in its own right (visible via showmount -e). So, when you see something like aux/nfsserver –a tcp!pie –a tcp!yoshimi all this means is that we are creating 2 NFS shares pie and yoshimi on a single NFS server. I'm looking into NFS because it seems that it has about the lowest barrier to entry of all the possible file-sharing methods. Any other suggestions would be appreciated. Whether or not to use NFS depends greatly on what is on the other end. What kind of UNIX? Like I said, it's a collection of Linux machines, mostly running Debian, Ubuntu, and Redhat. In that case why not use FUSE and 9P? This will also let you mount more easily from a non-root accounts. Thanks, Roman. I'd like to use the 9p mounting available in Linux, but it doesn't seem to work in this case. I try mount -t 9p glenda /mnt (glenda is my cpu/file server) and get: mount: wrong fs type, bad option, bad superblock on glenda, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.type helper program) In some cases useful info is found in syslog - try dmesg | tail or so If I do mount -t 9p 192.168.18.180 /mnt, using the file server IP, I just get mount: permission denied But dmesg shows [88617.144804] p9_errstr2errno: server reported unknown error cannot attach as none before authentication, ONLY when I use the IP address--nothing appears when I use the /etc/hosts alias glenda. What am I missing? John -- I've tried programming Ruby on Rails, following TechCrunch in my RSS reader, and drinking absinthe. It doesn't work. I'm going back to C, Hunter S. Thompson, and cheap whiskey. -- Ted Dziuba
Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 1:34 PM, John Florenslawmas...@gmail.com wrote: I'd like to use the 9p mounting available in Linux, but it doesn't seem to work in this case. I try mount -t 9p glenda /mnt (glenda is my cpu/file server) and get: mount: wrong fs type, bad option, bad superblock on glenda, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.type helper program) In some cases useful info is found in syslog - try dmesg | tail or so If I do mount -t 9p 192.168.18.180 /mnt, using the file server IP, I just get mount: permission denied But dmesg shows [88617.144804] p9_errstr2errno: server reported unknown error cannot attach as none before authentication, ONLY when I use the IP address--nothing appears when I use the /etc/hosts alias glenda. What am I missing? The Linux mount tool doesn't do DNS translation (except in the case of NFS). Other file systems have to rely on mount helpers which have to be appropriately named. So invocation as the IP address is the only correct invocation in this case -- but you'll need to auth (or setup the file server to export without authentication). -eric
Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 11:49 AM, Eric Van Hensbergen eri...@gmail.com wrote: On Tue, Jun 2, 2009 at 1:34 PM, John Florenslawmas...@gmail.com wrote: I'd like to use the 9p mounting available in Linux, but it doesn't seem to work in this case. I try mount -t 9p glenda /mnt (glenda is my cpu/file server) and get: mount: wrong fs type, bad option, bad superblock on glenda, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.type helper program) In some cases useful info is found in syslog - try dmesg | tail or so If I do mount -t 9p 192.168.18.180 /mnt, using the file server IP, I just get mount: permission denied But dmesg shows [88617.144804] p9_errstr2errno: server reported unknown error cannot attach as none before authentication, ONLY when I use the IP address--nothing appears when I use the /etc/hosts alias glenda. What am I missing? The Linux mount tool doesn't do DNS translation (except in the case of NFS). Other file systems have to rely on mount helpers which have to be appropriately named. So invocation as the IP address is the only correct invocation in this case -- but you'll need to auth (or setup the file server to export without authentication). -eric Ok. Since I want to try and keep this with a low barrier to entry, I'd prefer to avoid making people install p9p, which I think is what you said is needed to do auth. I tried 9mount as well and had no luck there--permission denied when I try to mount. Is it possible to just export one directory without authentication? I want to do read-only access if possible... is that what you get as 'none'? John -- I've tried programming Ruby on Rails, following TechCrunch in my RSS reader, and drinking absinthe. It doesn't work. I'm going back to C, Hunter S. Thompson, and cheap whiskey. -- Ted Dziuba
Re: [9fans] Configuring NFS
none does not (normally) give you read-only access; if something is world-writable, none will be able to write it. but getting read-only is pretty easy; see exportfs(4) and the files which use it in /rc/bin/service. from emory, i'd say exec /bin/exportfs -Rr /lib/music would do what you want. i've used nfsserver to provide access to a bunch of different types of unix hosts, but it has been a while. i just spent a few minutes right now trying with OS X and a remote plan9 server with no joy, but i'm not convinced i don't have a nat being disruptive. as far as the examples in nfsserver(8) go: ivy is a machine which responds to 9fs and exports a namespace containing /etc/passwd and /etc/group; it is most likely a unix system running u9fs or similar. /lib/ndb/nfs contains a 9fs command to mount ivy, so you can look at the live passwd and group files. if you'd rather not, or are unable to, get u9fs working on some authoritative unix system, you can copy or create a representative set locally (say, /lib/ndb/unix.passwd) and change the last two file names in the /lib/ndb/nfs example to point to those. edith and yoshimi are just 9p servers, most likely plan9 machines. passing them in the -a argument to nfsserver means that nfs clients attempting to mount the machines will have those two shares to pick from. i believe the example becomes inconsistent here; i think edith/yoshimi should match bootes/fornax. so if you had run the example as given here, you'd want to run /etc/mount -o soft,intr eduardo:ivy /n/ivy on your unix system. i forget whether the share (ivy) needs to match the exact string given to -a (tcp!ivy) or if just the hostname is okay.
Re: [9fans] Configuring NFS
On Tue, Jun 2, 2009 at 4:41 PM, Anthony Sorace ano...@gmail.com wrote: map between the numeric IDs reported by nfs and strings plan9 uses for uids. What if I want to just allow anyone to mount the share, from anywhere? John -- I've tried programming Ruby on Rails, following TechCrunch in my RSS reader, and drinking absinthe. It doesn't work. I'm going back to C, Hunter S. Thompson, and cheap whiskey. -- Ted Dziuba
Re: [9fans] Configuring NFS
for the from anywhere part, just use .+ as the host regexp. the anyone part also doesn't really apply: the files don't affect who can connect or read things, just what the mapping is done as (iirc, world readable is still world readable). if you just want to not bother with the passwd and group files and don't care about getting nice names in, i think (but it's been a few years) you can just point those at empty files.
