linux - Ubuntu: reboot "Failed to talk to init daemon" after 15.04 -> 15.10 update -

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i had patched 15.04 installation , did do-release-update. it's vm popular hoster, have root , have performed earlier similar upgrades on machine no problems. @ end of update advised reboot, usual, entered "reboot" got message in title , @ prompt.

i have plesk access container thought i'd reboot there - bad mistake: after shutdown nothing came , couldn't ssh in. tech support guys "did mysql" (sorry vague, that's got) , i'm now. however, think i'm in same situation because trying "reboot" gives same "failed talk init daemon" message.

the server seems stable enough in serving sites ok, i'm not happy being fragile. can't update kernel, amongst other things.

what heck happened during update?

turns out down vm image hosting provider running not being compatible 15.10. i'm sure isn't widespread ubuntu issue.


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