After a storage outage vCenter appliance fails to start
When the correct root password is entered the password is not taken and control l+ D does not let you enter any commands.
You would see errors similar to below
Physical Storage outage / disk replacement
Take a snapshot or backup of the vCenter Server Appliance before proceeding :
Reboot the vCenter Server Appliance.
After the VCSA Photon OS starts, press the e key to enter the GNU GRUB Edit Menu.
Locate the line that begins with the word Linux.
The line should look like the following screenshot:
* After consoleblank=0 remove scsi_mod.scan=sync $systemd_cmdline fi\ps=1
Append these entries to the end of the line - fsck.repair=yes
Press F10 to continue booting.
Once the vCenter boots to the login screen perform another reboot and the vCenter will be back on the network.