Stijn Tintel 49ab97ca86 bcm27xx: backup /boot/cmdline.txt and restore early ... If you want to use the Raspberry Pi UART, "console=serial0,115200" needs to be removed from the kernel cmdline. This is done by editing /boot/cmdline.txt. However, this file is not currently backed up during sysupgrade, so this effectively breaks HATs that require the use of the UART every sysupgrade. Backup this file during sysupgrade, and restore it before rebooting. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>		2020-05-03 17:30:45 +03:00
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