Hi， Thank you for your reply. I am a novice in this field, and I do not quite understand what you said. I will analyze and study this issue again.
Best Wang Michael D'Cruze <[email protected]> 于 2022年6月9日周四 下午6:11写道： > Hello, > > I think nfs/netboot made sense when filesystem updates were being released > for R2, but I don't really understand why anyone would use it anymore. > Roach2 should soloboot by default, and unless you've compiled and are > running a custom filesystem for some reason I'm not sure why any other boot > method would be advantageous... Perhaps I'm missing something > > Best, > Michael > ------------------------------ > *From:* [email protected] <[email protected]> on behalf > of 王钊 <[email protected]> > *Sent:* 09 June 2022 09:45 > *To:* [email protected] <[email protected]> > *Subject:* Re: [casper] An error occurs when 'exportfs -a' is entered > > Hi Michael， > > I'm using ROACH2.I don't know much about other boot methods of ROACH2. My > tutor suggests that I use Netboot. > > I spent a lot of time on netboot, the first time I used Ubuntu16, and this > error occurred at netboot： > [image: 154620_8cc3a188_10952828.webp] > > I am currently trying to use Ubuntu14 for netboot and also getting an > error about exportfs -a. > > I have also considered trying other boot methods, are there any related > tutorials？All I can find is netboot. > > Thank you very much for your reply！ > Wang > Michael D'Cruze <[email protected]> 于2022年6月8日周三 > 23:12写道： > > Hi Wang, > > 😬 > I did use netboot for a while on my roach2 way back in the day, but it was > easier especially following various updates to the board to just use > soloboot. > I hate to ask but is there a reason you need to use netboot? > I assume you're using a roach2, and not a roach1? > > BW > Michael > ------------------------------ > *From:* [email protected] <[email protected]> on behalf > of Wang <[email protected]> > *Sent:* 08 June 2022 15:52 > *To:* [email protected] <[email protected]> > *Subject:* [casper] An error occurs when 'exportfs -a' is entered > > 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 " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > 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 " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/LO4P265MB6154CAC9895302EA186451848AA49%40LO4P265MB6154.GBRP265.PROD.OUTLOOK.COM > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/LO4P265MB6154CAC9895302EA186451848AA49%40LO4P265MB6154.GBRP265.PROD.OUTLOOK.COM?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAEq%3DE3EAJsMBvh6tHeD6fbAwYhao5_cAm7Lpgu%3Dc%2B_tv5ciX9Q%40mail.gmail.com > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAEq%3DE3EAJsMBvh6tHeD6fbAwYhao5_cAm7Lpgu%3Dc%2B_tv5ciX9Q%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/LO4P265MB615457C0EB7B717B00142C888AA79%40LO4P265MB6154.GBRP265.PROD.OUTLOOK.COM > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/LO4P265MB615457C0EB7B717B00142C888AA79%40LO4P265MB6154.GBRP265.PROD.OUTLOOK.COM?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. 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