[j-nsp] M7i hard disk hint needed

[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 
> Alexander Serkin
> Sent: 04 April 2007 07:48
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] M7i hard disk hint needed
> 
> 
> Hi,
> Recently our m7i lost its hard disk - it is present in setup, 
> but while 
> booting the device is not detected:
> 
> Automatic reboot in progress...
> /dev/ad0s1a: FILESYSTEM CLEAN; SKIPPING CHECKS
> /dev/ad0s1a: clean, 393048 free /dev/ad0s1e: FILESYSTEM 
> CLEAN; SKIPPING 
> CHECKS
> /dev/ad0s1e: clean, 49144 free (48 frags, 49125 blocks, 0.0% 
> fragmentation) (8 frags, 6142 blocks, 0.0% fragmentation) (48 
> frags, 49125 blocks, 0.0% fragmentation)
> mfs: /dev/ad1s1b: Device not configured
> /dev/ad1s1f: CAN'T CHECK FILE SYSTEM.
> /dev/ad1s1f: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
> Can't open /dev/ad1s1f: Device not configured
> WARNING:
> WARNING: /var mount failed, building emergency /var
> WARNING:
> 
> are there any possible passes to recover the system, or we need to 
> change hard drive?
> 
> Is it possible to run system without hard drive temporary and 
> where can 
> i find some docs about this?
> 
What I've seen sometimes is that the hard drive gets removed from the
'boot list' on a power failure.

There is a process using 'sysctl' to re-insert it if this happens,
search the list archive to find it.

You should be able to tell if this has happened from elsewhere in the
boot messages - if there is a line present saying that the hard disk is
not in the boot list, so is not being attached, then that confirms this.

Michael