Archive for category Administration
hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. ie, powering on a VM, VM vMotion, VM creation, etc.
vpxa also runs on the Service Console and talks to VC. I believe it acts as an intermediary between VC and hostd. I think it also does some housekeeping on the ESX host, but not as much as hostd.
Conversions sometimes fail no matter how careful you are preparing the server. The failure can occur at various stages in the conversion process; these stages are based on the task bar percent and are estimated values.
- Creation of the target virtual machine (VM) (0%-5%)
- Preparing to Clone the Disk (5%-6%)
- Cloning (6%-95%)
- Post-cloning (95%-97%)
- Customization/Reconfiguration (97%-99%)
- Install Tools/Power On (99%-100%)
Converter creates a detailed log file during the conversion process which will contain exact errors pertaining to why the conversion failed. This log file is located on the server you are converting that is running the Converter agent, and is usually named vmware-converter-0.log and is located in the C:\Windows\temp\vmware-temp directory.
When you try to SSH login to your ESX host using root account, it gives you “Access denied” message.
This is normal; ESX SSH login using the root account is disabled by default for security purpose. You can login to the host by using either of the below ways:
- Login directly to the ESX host using VI Client (not to the vCenter Server)
- Click Users & Groups tab
- Right-click on a blank area and click Add
- Enter a username and password as shown in the picture. Confirm your password. Note: Starting in ESX 4.0 the password needs to be at least 8 characters in length.
- Select Grant shell access to this user and click OK.
- Open the SSH client (Putty for example).
- Complete the necessary fields. Ensure Port is set to 22 and Protocol is set to SSH. Press Enter or click Open.
- Log in as the new user you created in step 4.
- Type SU – and press enter (This command switches users to root access and provides the path to the root user commands).
- Enter the root password when prompted, press Enter and you are in.
Now, you know how to SSH login using root account but you will need to use the SSH login account (created on step 4 above). If you need to permanently login using root account directly without the need to use a temp account you will need to edit it the “ssh_config” file to permanently enable root account to login directly.
Here are the steps:
- Open a SSH session and login using steps mention above.
- Type command: nano /etc/ssh/sshd_config
- Find the line the says: PermitRootLogin and change the “no” to “yes” .
- save the file and exit.
- Restart the sshd process by typing /etc/init.d/sshd restart .
Now, you can permanently login to SSH using root account directly.