Re: Stopped at ifnal stages of netbooting MicroVax II with NetBSD

[Anders Magnusson <ragge%tethuvudet.se@localhost>]

Den 2020-12-28 kl. 19:58, skrev Nigel Johnson:
> Happy New Year to all,
>
> With lots of help from mind people on this list (remember my struggles
> getting mopd to work under linux?), I am now well into netboot.
>
> However, I get to this point and a kernel panic:
>
> .......
>
> [  1.1400070] ra0 at mscpbus0 drive 1:
> RA81
> [   1.2000070] rx0 at mscpbus1 drive 1:
> RX33
> [   2.1700070] ra0: size 650965
> sectors
> [   2.6200070] boot device:
> qe0
> [   2.6600070] root on
> qe0
> [   2.6900070] nfs_boot: trying
> DHCP/BOOTP
> [   5.9300070] nfs_boot: DHCP next-server:
> 192.168.2.25
> [   5.9500070] nfs_boot:
> my_domain=ve3id.ddns.net
> [   5.9800070] nfs_boot:
> my_addr=192.168.2.30
> [   6.0000070] nfs_boot:
> my_mask=255.255.255.0
> [   6.0100070] nfs_boot:
> gateway=192.168.2.1
> [  12.4200070] root on
> 192.168.2.25:/export/vax/root
> [  12.4600070] panic: nfs_mountroot: getattr for
> root
> [  12.4900070] cpu0: Begin
> traceback...
> [  12.5000070] panic: nfs_mountroot: getattr for
> root
> [  12.5100070] Stack traceback
> :
> [  12.5300070]   Process is executing in user
> space.
> [  12.5600070] cpu0: End
> traceback...
> Stopped in pid 0.1 (system) at  netbsd:vpanic+0x171:    pushl
> $0
> db>
>
> The last entry in /var/log/messages on the server is:
>
> 2020-12-28T13:51:07.796416-05:00 T540p rpc.mountd[11839]: authenticated
> mount request from 192.168.2.30:1023 for /export/vax/root (/export/vax/root)
>
> So I am not sure what is going on - can anybody help?
>
> All directories under /export are set RW for root.
The source code says:
        /* Get root attributes (for the time). */
        vn_lock(vp, LK_SHARED | LK_RETRY);
        error = VOP_GETATTR(vp, &attr, l->l_cred);
        VOP_UNLOCK(vp);
        if (error)
                panic("nfs_mountroot: getattr for root");
        n = attr.va_atime.tv_sec;

So, by some reason it seems to fail to get the time from the root vnode.
Most likely something with permissions for the filesystem.

-- R