I'm trying to boot CentOs already installed on an appliance. This appliance has only two input connectors:
- 1 USB port, where I plugged in a USB hub, to which I connected a keyboard
- 1 Male 9 Pin Serial port / RS232
It also has 2 Gigabit Ethernet ports, one of which is used for remote administration with Intel BMC and Intel SOL (Serial-Over-LAN)
I'm connected to the server via the Intel SOL.
Now the problem:
when I boot the server, I successfully reach the Grub loader and I can select the entries, but after that, the output shows the
� character, and nothing more happens, whichever the entry I select.
I tried to boot from a live Centos image (using a USB Pendrive connected to the USB hub) but also, in this case, I can see the Grub loader, I can select the desired entry, but then it stuck with
I also tried to:
- disable the
quietmode from the kernel flags
init=/bin/bashto the kernel lines
console=ttyS1to the kernel lines
- in Grub Rescue mode, chain load and boot the
grubx64.efifrom the OS already installed and from the USB Pendrive
I'm honestly out of options now, any suggestion would be greatly appreciated.