Hi Wang, When editing your `/etc/exports` file, did you include the text “# Share ‘roach_boot’” in the file for the line you included in your message?
# Share 'roach_boot' directory/srv/roach_boot 192.168.100.0/24(rw,subtree_check,no_root_squash,insecure) If you did, try removing it so that line in your `/etc/exports` is just: directory/srv/roach_boot 192.168.100.0/24(rw,subtree_check,no_root_squash,insecure) If your `/etc/exports` is as this line above, the only other thought I have is it might sound like you may have forgotten to save the file after editing before running `exportfs -a`. The reason being is that the error message “Neither ’subtree_check’ or ’no_subtree_check’ specified…” is suggesting that NFS could not find that option and so the file either had a syntax error, or just wasn’t there (not yet saved). Just a thought, hope this helps. Good luck! Mitch On Jun 8, 2022, at 8:52 AM, Wang <sandang19990...@gmail.com<mailto:sandang19990...@gmail.com>> wrote: Hi CASPER, How's it going? I'm using ubuntu14.04. I had some problems setting up the ROACH netboot. * First, sudo apt-get install nfs-kernel-server nfs-common. * Second, sudo gedit /etc/exports,and add the lines: # Share 'roach_boot' directory/srv/roach_boot 192.168.100.0/24(rw,subtree_check,no_root_squash,insecure) * The last, exportfs -a * At this time, the terminal displays: sandang@wz-sandang:/etc$ sudo exportfs -a exportfs: No options for to NFS: suggest NFS(sync) to avoid warning exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "NFS:to". Assuming default behaviour ('no_subtree_check'). NOTE: this default has changed since nfs-utils version 1.0.x May I ask what are the reasons for these? I would be really appreciated if you reply! Wang -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu<mailto:casper@lists.berkeley.edu>" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu<mailto:casper+unsubscr...@lists.berkeley.edu>. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/dbe7c801-e9a4-4967-b1aa-678bdf71aa83n%40lists.berkeley.edu<https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/dbe7c801-e9a4-4967-b1aa-678bdf71aa83n%40lists.berkeley.edu?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/A66E020F-AD77-4451-95DA-298CF88E5385%40byu.edu.
