Hi Gabriele,
Gabriele Bulfon wrote:
I had a failing v20z this morning, it was resetting from time to time causing a
crash dump.
Before delving into the problem, I quickly got my hands on another v20z I have,
exchanged the disks.
Because to me the machines are exactly the same, I did not suspect any porblem.
When booting, the new v20z went into single user mode, stating that the bge1
card could not be plumbed.
Checking the machine, I found that the /dev/bge1 was linked to a non existent
/device/....
So I went into the /device/pci.... where bge0 existed, and found that I had
another device called bge2, but no bge1...
I thought a "reconfigure" would do the job, but it did not.
Do you have any clue?
Does it mean I cannot be sure that exchanging a v20 or v40 with another v20 or
v40 is not always safe?
It may not be. I checked Sun Systems Handbook, and there are
three versions of the motherboard.
I don't know if there are differences in the BIOSes of the
different versions that might affect device
lookup. Latest BIOS is at
http://www.sun.com/servers/entry/v20z/downloads.jsp
In general, and my experience is with SPARC systems, the systems
are the same. But hardware
changes, especially for FINs and ECOs, could affect the ability
for an OS install to see different
hardware identically. (I don't have data that suggests a % for
similarity or change.)
You might look at the /etc/path_to_inst and compare. You could
move the existing file to the side and
have the system create a new one. YMMV.
Steffen
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