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Troubleshoot mode is pretty much service console only. You can use it to boot if you are having console problems, or disk mounting problems. Debug mode includes an option to configure a serial console for esx, to possibly capture and record console data to an alternate device.
Troubleshoot mode will not really get to the starting of vm point. It will get you into the service console only. The debug mode is similar to ESX, but includes debug information and includes service console serial access.
After you login the ESX host, you may check the /etc/grub.conf file, which indicate different cmd-line option for debug & troubleshooting mode.
title VMware ESX Server (debug mode)
kernel --no-mem-option /vmlinuz-2.4.21-57.ELvmnix ro root=UUID=115c32ae-ccf4-4def-a7cd-1f615cf9e3e3 mem=272M console=ttyS0,115200 console=tty0 debug
title Service Console only (troubleshooting mode)
kernel --no-mem-option /vmlinuz-2.4.21-57.ELvmnix ro root=UUID=115c32ae-ccf4-4def-a7cd-1f615cf9e3e3 mem=272M tblsht
Therefore, you may check it in /proc/cmdline after you login ESX host.
i am a newbie to vmware,
can you explain more about those esx modes?
thanks in advance