Why can not I restart/shutdown?

When I shutdown/restart get a black (shell - like) complete - screen with some huge message claiming things like:

ubuntu 10.10 [129.171175] Restarting system. eco
nds ... [OK]
...
Unmounting weak filesystems ... [OK]
will now restart

Then absolutely nothing takes place and also I need to literally strike the reset switch.

0
2019-05-18 20:30:20
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Answers: 2

In enhancement to what Delan recommended, as a whole you need to absolutely attempt various values for the reboot= boot parameter ; I would certainly recommend reboot=b specifically, because that is one of the most usual one for equipments to require. Below is the comment from linux/arch/x86/ kernel/reboot. c with the feasible values :

/* reboot=b[ios] | s[mp] | t[riple] | k[bd] | e[fi] [, [w]arm | [c]old] | p[ci]
   warm   Don't set the cold reboot flag
   cold   Set the cold reboot flag
   bios   Reboot by jumping through the BIOS (only for X86_32)
   smp    Reboot by executing reset on BSP or other CPU (only for X86_32)
   triple Force a triple fault (init)
   kbd    Use the keyboard controller. cold reset (default)
   acpi   Use the RESET_REG in the FADT
   efi    Use efi reset_system runtime service
   pci    Use the so-called "PCI reset register", CF9
   force  Avoid anything that could hang.
 */

The kernel has a variety of so - called "quirks" for certain equipments that call for the BIOS reboot method, yet like any kind of equipment quirks data source the opportunities are that it is missing out on a couple of. Your computer system might be just one of the ones that is missing out on. If you locate that reboot=b continually solutions this for you, after that please run 'ubuntu - bug linux' to report a kernel bug requesting for this to be made the default for your equipment.

You can make this adjustment either on the GRUB command line (hit 'e' on the pertinent boot access and also most likely to completion of the linux line), or, to make it irreversible, modify /etc/default/grub and also transform the GRUB_CMDLINE_LINUX line, taking care to place reboot=b (or whatever) inside the quote marks.

0
2019-12-03 02:31:26
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Sometimes the reactivate does not fairly function effectively. As an example, when making use of Ubuntu on Apple computer systems, you have to add reboot=pci to your boot flags to reboot effectively, without holding on the reboot message like your computer system is. I'm not claiming that your computer system is Apple, yet that boot flag might aid.

0
2019-05-21 03:17:07
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