Meltdown Update Kernel doesnt boot

Re:Meltdown Update Kernel doesnt boot by krutzger on Wednesday January 10, 2018 @06:05PM (#16119986)

I was under the impression that Ubuntu would automatically revert to last good kernel of the new one fails to boot. Was I mistaken?

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Re:Meltdown Update Kernel doesnt boot by michaelt on Wednesday January 10, 2018 @07:12PM (#16120331)

There's something close-but-not-quite-the-same: by default the grub menu is hidden with an instant timeout (IIRC) but if a boot fails to complete, on the subsequent boot the menu won't be hidden. Google 'recordfail' if you're interested in the details.

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Re:Meltdown Update Kernel doesnt boot by bproven on Wednesday January 10, 2018 @06:27PM (#16120114)

AFAIK worse case you should be able to select the previous kernel in grub2 upon reboot. It just hangs after grub on this (bad) kernel I think...

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Re:Meltdown Update Kernel doesnt boot by ams6110 on Wednesday January 10, 2018 @07:00PM (#16120278)

Yeah but if you have a couple of hundred machines that aren't booting.... That's pretty worst case.

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Re:Meltdown Update Kernel doesnt boot by jlgaddis on Wednesday January 10, 2018 @07:30PM (#16120437)

That is pretty worst case. OTOH, it teaches the lesson about testing updates on a small number of hosts before rolling 'em out globally.

One has to learn that lesson at some point.

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Re:Meltdown Update Kernel doesnt boot by bproven on Wednesday January 10, 2018 @07:23PM (#16120395)

yeah - I hear you. :( Still better than being totally hosed...at least there is some option

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Re:Meltdown Update Kernel doesnt boot by myth_drannon on Wednesday January 10, 2018 @06:49PM (#16120225)

No, you have to manually restart, boot into grub and select the one that works

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