IMPORTANT UPDATE: I tried to use the oldest VM I have, 275GB in size. As soon as I resize it to 500GB to make more space (it needs it), it will show the "Error loading operating system" now. What could cause this? Can I shrink it back?
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We are running a Windows 2003 Server Standard in a VM because of a legacy software that we need to run (VMware ESXi, 6.5.0, 4564106). Lately, the server crashed (ESXi purple screen) and since then the machine doesn't boot anymore.
To solve the problem we restored a backup from a day earlier, but weirldy enough, the problem doesn't go away. Even when we go several days back, it still won't boot.
The problem in detail is the following: First, I get 'Error loading operating system' on booting. I can get it to a black cursor in the top left corner, that doesn't blink, by booting with the CD ISO and doing
bootcfg /rebuild. But I can't get it to boot properly. I tried the following:
- Changing the disk controller in vsphere from SCSI to IDE, redoing the trinity (
- I looked at the data using a debian live, everything is there.
config.sysare empty (0 bytes), boot.ini is ok.
- We tried to install Debian on a second disk, tried to boot with GRUB, same thing (black screen, white cursor, not blinking)
- We tried more RAM, less RAM, fewer CPUs, more CPUs, using VM Version 10 (6.0), but no luck
- Running it on another host
- Running the Windows Server 2003 restore (where it overwrites over several system files), same result
chkdsk /P /R
I don't know anymore what else to try. I recently extended the VHD from 250GB to 500GB (and resized the partition to 500GB in compmgmt.msc), that's the only thing I did to it. The VHD used to be run in vmware Player before we converted it and ran it on vsphere.