Quote Originally Posted by routercnc View Post
Update,

Installed ISO recorder into windows xp, and created a proper boot disc for Ubuntu and EMC2. Installed this onto a reformatted second HDD. I ran the latency test and got max jitter servo thread of 6983, and max jitter base thread of 7541. These are similar to the results in the EMC2 manual, so assume are OK....

Anyway, later today I switched on the CNC PC and tried Linux again, but system will not get past POST with 'NTLDR is missing' error. Tried lots of things but can't get past this. PC obviously thinks there is a problem with the boot or root directory of the Linux HDD.

Barry
NTLDR missing is a Windows boot error, means that the PC has a Windows master boot sector trying to find NTLDR on the disc... suggests your dual boot setup is not right, or corrupted