[j-nsp] M7i :hard-disk missing in Boot List

[Dmitry Cherkasov]

2006/5/16, michael.firth at bt.com <michael.firth at bt.com>:
> > -----Original Message-----
> > From: juniper-nsp-bounces at puck.nether.net
> > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Zoltan Ori
> > Sent: 10 May 2006 14:51
> > To: juniper light; juniper-nsp at puck.nether.net
> > Subject: Re: [j-nsp] M7i :hard-disk missing in Boot List
> >
> >
> > On Wednesday 10 May 2006 09:09, juniper light wrote:
> > > Hi all,
> > > Have any one seen this alarm :
> > >
> > > M7i> show system alarms
> > > 1 alarms currently active
> > > Alarm time               Class  Description
> > > 2006-05-10 12:47:17 WET  Major  Host 0 hard-disk missing in
> > Boot List
> >
> <snip>
> >
> > I had the same problem once. JTAC gave me the following:
> >
> > >From shell, as root, check the boot devices
> >
> > %sysctl -a | grep bootdevs
> > machdep.bootdevs: pcmcia-flash,compact-flash,lan
> > %
> >
> > Add the disk back in (this is default order)
> > %sysctl -w machdep.bootdevs: pcmcia-flash,compact-flash,disk,lan
> >
> > Repeat  'sysclt-a | grep bootdevs' to ensure that it was changed.
> >
> <snip>
>
> > Hope that helps.
> >
> > Zoltan Ori
> >
> It seems the above procedure is not quite right, at least on JunOS 7.3R1
> I needed the following:
>
> sysctl -w machdep.bootdevs=pcmcia-flash,compact-flash,disk,lan
>
> Instead of:
>
> sysctl -w machdep.bootdevs: pcmcia-flash,compact-flash,disk,lan
>
> Is there any known reason why an M7i might do this? We had an otherwise
> happy M7i do this on a reboot today, it had been cleanly shutdown, and
> then re-powered.
>

Seems to be a bug in 7.3R1.
We had a similar problem on M7i with the same JunOS version.
Expert people say that newer versions are free from this bug.

That time the procedure that finally helped was the following: halt
the system without powering off, wait 10-15 minutes then boot.


-- 
Dmitry Cherkasov