On 05/07/2012 05:07 AM, Colin Law wrote: > 2012/5/7 James Plate <james.plate@gmai...>: >> On 05/07/2012 03:31 AM, Antonio Fernández Pérez wrote: >>> Hi everybody, >>> >>> I have configured a machine to print Wi-Fi tickets with Ubuntu Server >>> and OpenBox desktop manager that launch a Java graphical application >>> on boot. If the machine will be shutdown by power button, what effects >>> could to have? Could it affect to some partition? Could corrupt the >>> system and not start? There are some tool to repair the boot and make >>> that the system boots normally? >>> [pointless Spanish (I think) legal rubbish deleted - even more pointless than normal since this is an English speaking list] >> Yes it most certainly can cause hardware issues, including but not >> limited to corrupted sectors on your hard disk. > Though in practice it is very rare that it actually causes any > problems with modern file systems. As far as I can remember I have > never lost anything on Linux when this happens except for data in > files on which I was currently working, or once when the system was > trashed by a power failure in the middle of a kernel upgrade. But > that was caused by the fact that I had a half installed kernel, which > was not good. > > @James, what problems can it cause apart from corrupting data being > written at the time of failure? > > Colin > I'm sure it's a rare occurence with new hardware but historically it could physically damage the disk platter, espescially if the disk is being accessed when a shutdown was forced/power lost. I could be out of date with my info. I've just made it a habit for a long time to not make a habit of hard resets/shutdowns.