jessie: help debugging NFS shares not mounted at boot, double mounts with mount -a, and @reboot cronjobs

[Sandro Tosi]

Hey Felipe,
thanks for keep looking into this!

On Wed, Mar 16, 2016 at 1:23 PM, Felipe Sateler <fsateler at debian.org> wrote:
> On 4 March 2016 at 18:13, Sandro Tosi <morph at debian.org> wrote:
>>> Could you attach one? Or mail me privately if you prefer, and I can
>>> take a look to see if there is anything else that may be fishy.
>>
>> we are extremely protective of what we do on our system, so i am not
>> able to provide a pristine boot log. I am attaching an anonymized
>> version of the first minutes of boot, hope that's good enough.
>
> I see this that looks possibly interesting:
>
> Feb 23 06:50:43 SERVER systemd[1]: Reached target Network is Online.
> Feb 23 06:50:43 SERVER systemd[1]: Mounting /mnt/NFSSERVER12_VOL...
> <snip>
> Feb 23 06:50:43 SERVER systemd[1]: Starting LSB: RPC portmapper replacement...
> <snip>
> Feb 23 06:50:43 SERVER systemd[1]: Starting LSB: NFS support files
> common to client and server...
> <snip>
>
> So it looks like systemd is starting the mounts in parallel to
> starting the nfs support infrastructure.

uh nice catch!!

> What happens if you add the following content:
>
> [Unit]
> Wants=remote-fs-pre.target
> Before=remote-fs-pre.target
>
> To snippets for nfs-common and rpcbind ? That would be
> /etc/systemd/system/{nfs-common,rpcbind}.service.d/00-remote-fs-ordering.conf
>
> Ensure systemd is picking up the files by issuing a systemctl
> daemon-reload, and then doing systemctl cat rpcbind nfs-common and
> making sure the output includes the snippets.

so I created the dirs
/etc/systemd/system/{nfs-common,rpcbind}.service.d/ , added
00-remote-fs-ordering.conf in each of them with the the config you
suggested, then systemctl daemon-reload then

# systemctl cat rpcbind
...
# /etc/systemd/system/rpcbind.service.d/00-remote-fs-ordering.conf
[Unit]
Wants=remote-fs-pre.target
Before=remote-fs-pre.target

# systemctl cat nfs-common.service
...
# /etc/systemd/system/nfs-common.service.d/00-remote-fs-ordering.conf
[Unit]
Wants=remote-fs-pre.target
Before=remote-fs-pre.target

and I've now set the test machine in a reboot loop until it detects an
error, I'll let you know what happens

-- 
Sandro "morph" Tosi
My website: http://sandrotosi.me/
Me at Debian: http://wiki.debian.org/SandroTosi
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