C3750 Grey screen instead of CDE login

[Nivel]

Hope someone can help on this. I have been trying to connect my C3750 (HP-UX 11.11) to internet. In SAM, tried to set local DNS server to my router address. Then SAM would not start. After shutdown, got grey screen instead of CDE login. Can I rectify this through Boot Console Handler? Thanks in advance, Neville.

[TTr · Accepted solution]

WHat is the grey screen? Does is have a console login prompt? If not,

At the BCH type in "boot primary isl" and at the isl prompt type "hpux -is". It will boot up in single user mode. Then you can edit and undo all the changes that you made.

[Steven Schweda]

As a general rule, CDE expects to be able to
resolve the host name somehow when it starts.
If you damage the name resolution enough,
then you can expect to have CDE problems. A
gray screen suggests that the X server itself
got going, but CDE is more demanding.

> [...] In SAM, tried to set [...]

Not really a complete description of the DNS
configuration, either before or after the
disaster.

What's in "/etc/hosts"?

grep HOSTNAME= /etc/rc.config.d/netconf

hostname

Then you can worry about things like
"/etc/resolv.conf" and "/etc/nsswitch.conf".

man resolv.conf
man nsswitch.conf

[Steven Schweda]

> [...] single user mode. [...]

If you get desperate. I'd start by trying to
get in from another system on the network
(Telnet, rsh/remsh, ssh, ...). (There might
be some delay if the DNS is sufficiently
hosed.) Then, when that fails, break out the
big hammer.

[Nivel]

Thanks everyone. I booted up in single user mode and deleted the resolv.conf file I had mistakenly created. Problem solved.