<style> .reveal { font-family: 'EB Garamond', serif; } </style> # Lab #11: NFS # ## wp @ nasa2021 ## --- ## Updates after the recording ## Q/A: <https://app.sli.do/event/5vdt0vwg/live/questions> ---- ### 05-24 11:40 ### Please get the basic image instead of the cloudimg one. ---- ### 05-24 11:55 ### If you are having trouble with VM IP addresses, please refer to <https://unix.stackexchange.com/a/419322>. ---- ### 05-24 12:00 ### virt-manager URI screenshot:  ---- ### 05-24 13:00 ### If you have issues when starting the NFS server or mounting directories, you may want to reboot the VM. This is because `pacman -Syu nfs-utils` also updates the kernel, making some kernel modules unable to load before rebooting. --- ## tl;dr ## Your task is simple: set up an NFS server. --- ## Before we start ## - Grab an Arch Linux VM image from <https://mirror.pkgbuild.com/images/v20210515.22945/>! (user/pass: `arch`/`arch`) - Set up libvirt (and perhaps virt-manager) - We do not restrict the distro/hypervisor you use, but do so at your own risk ;) --- ## Install two VMs and make sure they can communicate ## - With libvirt/virt-manager running locally, the two should already be under the same network by default - Hopefully you're already familiar with this! --- ## NFS Server ## ---- ### Installation ### ``` sh pacman -Syu nfs-utils ``` ---- ### Setup Exports ### ``` sh mkdir -p /srv/nfs/future_gadget_lab cat >> /etc/exports << EOF /srv/nfs 10.0.0.1(rw,sync,fsid=0) /srv/nfs/future_gadget_lab 10.0.0.1(rw,sync) EOF exportfs -arv ``` (Replace `10.0.0.1` with client IP!) ---- ### Start Server ### ``` sh systemctl enable --now nfs-server ``` --- ## NFS Client ## ---- ### Installation ### ``` sh pacman -Syu nfs-utils ``` ---- ### Mount! ### ``` sh mount -t nfs 10.0.0.5:/srv/nfs/future_gadget_lab /mnt ``` (Replace `10.0.0.5` with server IP!) --- ## Submission ## Screenshots of: - Server: `cat /etc/exports` - Server: `exportfs -v` - Client: `mount` - Client: `df -h` --- ## Appendix ## If you want to run the VMs on the workstations... ---- ### virt-manager ### - Custom URI: `qemu+ssh://USER@linuxN.csie.org/session` ---- ### Manually edit libvirt XML ### ``` xml <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <!-- Some content --> <qemu:commandline> <qemu:arg value='-netdev'/> <qemu:arg value='user,id=mynet.0,net=10.0.10.0/24'/> <qemu:arg value='-device'/> <qemu:arg value='virtio-net-pci,netdev=mynet.0'/> </qemu:commandline> <qemu:commandline> <qemu:arg value='-netdev'/> <!-- Change the port to something you like --> <qemu:arg value='socket,id=vlan,mcast=230.0.0.1:1234'/> <qemu:arg value='-device'/> <qemu:arg value='virtio-net-pci,netdev=vlan'/> </qemu:commandline> </domain> ``` ---- ### Set up IP ### ``` sh ip addr add 10.0.0.1/24 dev eth1 ip link set eth1 up ``` --- ## Resources ## - <https://wiki.archlinux.org/title/NFS> - `man exports`