Grub2 security update renders system unbootable

Re:Grub2 security update renders system unbootable by hinkley on Thursday July 30, 2020 @01:57PM (#24001123)

Oh, the pain is real. Cross threading is one of my nemeses. My eye still twitches when I see people cut a bolt on Youtube without threading the nut on first to work as a die (as in 'tap and die'). You're gonna cross-thread that thing! AAH.

I worked as a bicycle mechanic for a bit (lots of bolt cutting, more cross threading than I wanted), but also spent a cold winter working with my dad on a vintage car and I discovered that I don't have as much nostalgia for car work as I thought I might. For the same reason my boss pays for licenses (because you can yell at them and make them pay for the repairs) I pay others to do some of my handiwork.

Despite still being able to turn a bolt the right way while upside down and with the bolt facing away from me, I figure I'm almost as likely to get a rude surprise due to my own stupidity as theirs. If, and this is a big If, I've developed a relationship with the vendor, instead of just driving down to the Jiffy Lube where I'm nobody.

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Re:Grub2 security update renders system unbootable by jacquesm on Thursday July 30, 2020 @03:01PM (#24001724)

Here's a simple trick that will help you to never ever have a cross threaded bolt: turn the bolt the wrong way until it clicks. That's the step of the threads disengaging from each other. Now they're perfectly aligned to mate so you move forward just a 10th of a turn or so and it will immediately engage. If it doesn't there is something wrong and you need to inspect the threads.

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