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Re: problem booting dom0



Hi John,

John Hayward wrote:
When I attempt to boot a netbsd dom0 boot I see in the log file:
====
xenbackendd[446]: Failed to read /local/domain/0/backend/console/5/0/script (No such file or directory)
====



This is non-fatal. Not something I have ever looked into but I believe it is either left over from linux related code or displayed due to boot options/parameters not being utilised. Actually, I'd like to know why it's still displayed ... but be assured you can completely ignore it.


Can someone point me in the direction to get booting?
It looks like it finds the disk image and CD.
There are issues with the network which I can look into later.
It seems that I am not getting the console of the dom0 to show up.


the config file looks like:
===
kernel = "/netbsd-INSTALL_XEN3_DOMU"
memory = 256
name = "netbd"
nics = 1
vif = [ 'mac=aa:00:00:50:02:f0, bridge=bridge0' ]
disk = [ 'file:/var/xen/netbd-disk,0x01,w', 'phy:/dev/cd0a,0x2,r' ]
root = "/dev/wd0d"
===

Sample run:
===
xm create -c /usr/pkg/etc/xen/netbd
Using config file "/usr/pkg/etc/xen/netbd".
Warning: The nics option is deprecated. Please use an empty vif entry instead:

  vif = [ '' ]
===
After a while
===
newserver: {242} Error: Device 0 (vif) could not be connected. Hotplug scripts not working.
===
it exits and the /var/log/messages shows:
===
Feb 4 23:23:08 newserver /netbsd: xbd backend: attach device vnd1d (size 4096000) for domain 5 Feb 4 23:23:08 newserver /netbsd: xbd backend: attach device cd0a (size 359844) for domain 5 Feb 4 23:23:08 newserver /netbsd: xvif5.0: Ethernet address aa:00:00:51:02:f0 Feb 4 23:23:08 newserver xenbackendd[446]: Failed to read /local/domain/0/backend/console/5/0/script (No such file or directory) Feb 4 23:24:50 newserver xenbackendd[446]: Failed to read /local/domain/0/backend/console/5/0/script (No such file or directory) Feb 4 23:24:50 newserver /netbsd: xbd backend: detach device vnd1d for domain 5 Feb 4 23:24:50 newserver /netbsd: xbd backend: detach device cd0a for domain 5
Feb  4 23:24:50 newserver /netbsd: xvif5.0: disconnecting
===

johnh...


I haven't looked at your config in detail but I'd suggest heeding the warning that pleads with you to remove your nics line.

OK, I just looked ... remove 'nics' and 'root' lines, they're not needed. To add, if you were to use the 'root' line, it would be xbd0 which is the xen assignment for a vnd ... but you don't need it.

The symptoms you are experiencing will either be config or sparse image file ... unless of course I'm wrong ;)

Sarton



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