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Remove the quiet parameter and change the entry with the linux line to look as follows:
linux /casper/vmlinuz console=tty1 console=ttyS4,115200n8 systemd.unit=getty@ttyS4.service —
Wait for the live USB to boot
...
...
Remove the quiet parameter and change the entry with the linux line to look as follows:linux /casper/vmlinuz console=tty1 console=ttyS4,115200n8 systemd.unit=getty@ttyS4.service —
Wait for the live USB to boot
...