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On Sun, Apr 5, 2015 at 3:27 AM, Dale <rdalek1967@×××××.com> wrote: |
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> Neil Bothwick wrote: |
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>> On Sat, 04 Apr 2015 14:41:12 +0200, lee wrote: |
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>> |
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>>>> On Linux now there's the Magic SysRq Key feature for that. |
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>>> I always can't remember which keys to press with that, so I have it |
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>>> disabled. |
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>> BUSIER backwards. |
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>> |
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>>> And when the keyboard is unresponsive, it won't work. |
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>> It usually does. The kernel sees the Magic key events directly, so even |
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>> if your X server has crashed, it will still respond to Alt-SysReq. |
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>> |
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>> |
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> |
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> I used that on a few puters. I don't recall this ever not working. X |
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> may not see the keyboard but the kernel does. It's a life saver at |
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> times too. At least you can sync and unmount cleanly. |
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> |
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|
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If you're dealing with a kernel panic of some kind (which you |
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inevitably are when you are doing this sort of thing), all bets are |
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off. I'll agree that usually the magic sysrq works. However, there |
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are certainly going to be cases where it doesn't, or at least where |
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parts of it don't work. In my case the part that usually fails for me |
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right now is btrfs, so unmounting won't work anyway (though I guess it |
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will take care of the ext4 backup partition that is only rarely |
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touched anyway). |
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|
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-- |
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Rich |
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