Hi,

i have Netra t1 with solaris 10 installed, which gives me headaches. due 
to some weird errors i got with a cron job i rebooted the machine. since 
then the machine is booting in circles.

<snip>
ok boot -v
Initializing Memory
Boot device: /pci@1f,0/pci@1,1/scsi@2/disk@0,0:a  File and args: -v
module /platform/sun4u/kernel/sparcv9/unix: text at [0x1000000, 
0x10a8cb5] data at 0x1800000
module /platform/sun4u/kernel/sparcv9/genunix: text at [0x10a8cb8, 
0x1286e77] data at 0x1866fc0
module /platform/sun4u/kernel/misc/sparcv9/platmod: text at [0x1286e78, 
0x1286e7f] data at 0x18bda80
module /platform/sun4u/kernel/cpu/sparcv9/SUNW,UltraSPARC-IIi: text at 
[0x1286e80, 0x1293287] data at 0x18be180

SunOS Release 5.10 Version Generic_142909-17 64-bit
Copyright (c) 1983, 2010, Oracle and/or its affiliates. All rights reserved.
avail mem = 503971840
root nexus = Netra t1 (UltraSPARC-IIi 440MHz)
pseudo0 at root
pseudo0 is /pseudo
scsi_vhci0 at root
scsi_vhci0 is /scsi_vhci
pcipsy0 at root: UPA 0x1f 0x0
pcipsy0 is /pci@1f,0
PCI-device: pci@1,1, simba0
simba0 is /pci@1f,0/pci@1,1
/pci@1f,0/pci@1,1/scsi@2 (glm0):
	Rev. 3 Symbios 53c875 found.
PCI-device: scsi@2, glm0
glm0 is /pci@1f,0/pci@1,1/scsi@2
sd2 at glm0: target 0 lun 0
sd2 is /pci@1f,0/pci@1,1/scsi@2/sd@0,0
root on /pci@1f,0/pci@1,1/scsi@2/disk@0,0:a fstype ufs
pseudo-device: dld0
dld0 is /pseudo/dld@0
PCI-device: ebus@1, ebus0
ebus0 is /pci@1f,0/pci@1,1/ebus@1
su0 at ebus0: offset 14,3803f8
su0 is /pci@1f,0/pci@1,1/ebus@1/su@14,3803f8
cpu0: UltraSPARC-IIi (portid 0 impl 0x12 ver 0x91 clock 440 MHz)
iscsi0 at root
iscsi0 is /iscsi
The / file system (/dev/rdsk/c0t0d0s0) is being checked.
Hostname: unknown
syncing file systems... done
rebooting...
Resetting ...
</snip>

i booted the machine from network and mounted both disks to do a file 
system check.

<snip>
# fsck /dev/dsk/c0t0d0s0
** /dev/rdsk/c0t0d0s0
** Last Mounted on /
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3a - Check Connectivity
** Phase 3b - Verify Shadows/ACLs
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cylinder Groups
315550 files, 8970088 used, 99219487 free (29831 frags, 12398707 blocks, 
0.0% fragmentation)
</snip>

does anyone have a hint where and how to look into this strange behavior?

regards
markus

ct,
-- 
Das Abspringen einer Begrenzungsmauer dient nicht dem direkten 
Zur�cklegen des Arbeitsweges.
http://www.rz-amper.de

Markus Sonnenberg <lassmichinruhe@rz-amper.de> writes:
...
>The / file system (/dev/rdsk/c0t0d0s0) is being checked.
>Hostname: unknown
>syncing file systems... done
>rebooting...
>Resetting ...

This part of the sequence is the only odd looking thing. 
It is strange that hostname is unknown? 


You could check the syslog while you are booted into single-user mode
to see what may be happening more.

Could you possibly have a init script/SMF that shuts down the system
upon boot? 

Have you fsck'd all the file system partitions and not just root? 

On 3/27/2012 2:55 PM, Doug McIntyre wrote:
> Markus Sonnenberg<lassmichinruhe@rz-amper.de>  writes:
> ..
>> The / file system (/dev/rdsk/c0t0d0s0) is being checked.
>> Hostname: unknown
>> syncing file systems... done
>> rebooting...
>> Resetting ...
>
> This part of the sequence is the only odd looking thing.
> It is strange that hostname is unknown?

every second try it comes up with the correct hostname.

> You could check the syslog while you are booted into single-user mode
> to see what may be happening more.

a friendly 'boot -s' has the same result as a normal boot. it's 
rebooting/resetting the same way as normal boot. i checked
/var/log/messages and the last entry is the last shutdown. i'm using 
syslog-ng started by a script. and it seems to me that the reboot 
happens before syslog-ng get started.

a 'boot -m milestone=none' ends with a running system without a reboot.

> Could you possibly have a init script/SMF that shuts down the system
> upon boot?

not as far as i know. i guess it would be pretty stupid to have a 
script/smf which shuts down the machine.

> Have you fsck'd all the file system partitions and not just root?

i have two disks in that machine.
   /dev/dsk/c0t0d0s0   /
   /dev/dsk/c0t0d0s7   swap
   /dev/dsk/c0t1d0s0   /var
i've fsck'd root and var and got no errors.

<snip>
# fsck /dev/dsk/c0t0d0s0
** /dev/rdsk/c0t0d0s0
** Last Mounted on /
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3a - Check Connectivity
** Phase 3b - Verify Shadows/ACLs
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cylinder Groups
315550 files, 8970088 used, 99219487 free (29831 frags, 12398707 blocks, 
0.0% fragmentation)
</snip>

regards
markus

ct,
-- 
Das Abspringen einer Begrenzungsmauer dient nicht dem direkten 
Zur�cklegen des Arbeitsweges.
http://www.rz-amper.de

Markus Sonnenberg <lassmichinruhe@rz-amper.de> writes:
>On 3/27/2012 2:55 PM, Doug McIntyre wrote:
>> Markus Sonnenberg<lassmichinruhe@rz-amper.de>  writes:
>> ..
>>> The / file system (/dev/rdsk/c0t0d0s0) is being checked.
>>> Hostname: unknown
>>> syncing file systems... done
>>> rebooting...
>>> Resetting ...
>>
>> This part of the sequence is the only odd looking thing.
>> It is strange that hostname is unknown?

>every second try it comes up with the correct hostname.


That is truely odd. Maybe a split boot mirror with one disk flaking out? 

My next course of action that I'd take is to try testing/swapping hardware
(ie. RAM, Disk). Install another drive and install onto it, import
data over. Etc. 

On 3/27/2012 11:18 PM, Doug McIntyre wrote:
> Markus Sonnenberg<lassmichinruhe@rz-amper.de>  writes:
>> On 3/27/2012 2:55 PM, Doug McIntyre wrote:
>>> Markus Sonnenberg<lassmichinruhe@rz-amper.de>   writes:
>>> ..
>>>> The / file system (/dev/rdsk/c0t0d0s0) is being checked.
>>>> Hostname: unknown
>>>> syncing file systems... done
>>>> rebooting...
>>>> Resetting ...
>>>
>>> This part of the sequence is the only odd looking thing.
>>> It is strange that hostname is unknown?
>
>> every second try it comes up with the correct hostname.
>
>
> That is truely odd. Maybe a split boot mirror with one disk flaking out?
>
> My next course of action that I'd take is to try testing/swapping hardware
> (ie. RAM, Disk). Install another drive and install onto it, import
> data over. Etc.

i replaced the first disk and installed sol10 on it. it doesn't reboot 
and runs stable. now i'm restoring from backup.

i placed the original disk in another netra t1 and it shows the same 
behavior. it is rebooting all the time.

regards
markus

ct,
-- 
Das Abspringen einer Begrenzungsmauer dient nicht dem direkten 
Zur�cklegen des Arbeitsweges.
http://www.rz-amper.de