Boot hang
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 Hello, Boot hangs at lo0: link state changed to up current upgrade worked for a day and I rebooted today and this started happening. Thank you. 
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 Hi, At first, I would suggest to inspect that device, called lo0. But then I knew who it was : it's de 'driver' name of the IP stack of the FreeBSD kernel itself, known as lo0 or "127.0.0.1 or ::1 or 'localhost', and isn't physical, it a pure OS internal thing. This means that the kernel goes down with it's own code. As this code is tested a billion time a day, I tend to say : your device is dying on you (memory ... ) 
 lo0 is not a physical NIC, and doesn't need an 'external' driver.
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