This also works when you’re getting the error “id is already in use”.
First, display config: crm configure show
Then edit config:
crm configure
edit
[make your changes, save and quit]
Then commit config:
commit
Then exit crm configure and check your configuration again
quit (or Ctrl+C)
crm configure show
This is not specific to XenServer, or to CentOS, but it was what I was trying to do at the time.
XenServer, by default, only has the Citrix repository enabled, so there will be lots of packages you can’t install.
If you want to install a package but don’t want to enable the CentOS repository, you can use the following command:
yum –enablerepo=base install mutt
This installs mutt from the base repo. If you want a list of available repos, you can do the following:
yum repolist disabled
Example output:
[root@testxenserver yum.repos.d]# yum repolist disabled
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
repo id repo name status
addons CentOS-5 – Addons disabled
base CentOS-5 – Base disabled
c5-media CentOS-5 – Media disabled
centosplus CentOS-5 – Plus disabled
contrib CentOS-5 – Contrib disabled
extras CentOS-5 – Extras disabled
updates CentOS-5 – Updates disabled
repolist: 0
And to see enabled repos:
[root@testxenserver yum.repos.d]# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
repo id repo name status
citrix XenServer 5.6.100 updates enabled: 0
repolist: 0
Check your ACL. I was using a netmask of 255.255.0.0, and couldn’t get this error to go away until I specified particular IPs with netmask of 255.255.255.255.
Also, after updating the system ACL, go back to the iSCSI target ACL and just ‘update’ on the host allow page. This page was showing the new IPs for me, but the config file on the server (/etc/initiators.allow) was out of date until I updated.
nmap -n 10.0.0.1/24 -PS
This will give you something similar to the following:
Nmap scan report for 10.0.0.1
Host is up (0.00082s latency).
Not shown: 993 closed ports
PORT STATE SERVICE
20/tcp filtered ftp-data
21/tcp filtered ftp
80/tcp open http
443/tcp open https
2602/tcp open ripd
5000/tcp open upnp
5100/tcp open admd
Nmap scan report for 10.0.0.12
Host is up (0.00022s latency).
Not shown: 993 filtered ports
PORT STATE SERVICE
80/tcp open http
135/tcp open msrpc
139/tcp open netbios-ssn
445/tcp open microsoft-ds
2869/tcp open unknown
3389/tcp open ms-term-serv
49154/tcp open unknown
Nmap scan report for 10.0.0.17
Host is up (0.00031s latency).
All 1000 scanned ports on 10.0.0.17 are closed
Nmap scan report for 10.0.0.20
Host is up (0.013s latency).
Not shown: 999 closed ports
PORT STATE SERVICE
62078/tcp open iphone-sync
Nmap scan report for 10.0.0.37
Host is up (0.00017s latency).
Not shown: 999 closed ports
PORT STATE SERVICE
80/tcp open http