Re: data loss after system freeze - normal?

[Cem Kayali <cemkayali%eticaret.com.tr@localhost>]

Thanks, all clear.


>> Maybe there was an operation in progress on the passwd files when the
system hung ?

True. Kdm (Xorg) start was in progress, i did see Xorg blank screen but 
not kde login one and then freezed. I'm still trying to find the reason, 
but i assume this is somehow because of keyboard layout. I switched to 
standart layout and switch to local one after kdm completes its job.


Thanks.
Cem





Manuel Bouyer wrote:
> On Thu, Jul 10, 2008 at 04:02:53PM +0300, Cem Kayali wrote:
>   
>> Hello!
>>
>> Could NetBSD friends share their experiences once a NetBSD 4.X system 
>> completely freezes and is restarted by only clicking on power button?
>>
>>
>> Well, the system rebooted and fcsk started. Then i noticed that 
>> master.passwd didn't exist anymore and passwd is empty. I set root pass 
>> in single user mode and checked some of config files and restored from 
>> backup. I couldn't find any lost+found either. No crash file.
>>     
>
> Maybe there was an operation in progress on the passwd files when the
> system hung ?
>
>   
>> My questions are
>>
>> - Whether data-loss is normal after fsck completes its job with no 
>> lost+found entries.
>>     
>
> No, but you can have trucated or corrupted files if they got written
> shortly before the crash. I think a file that was being created when
> the crash occurs can be deleted entirely. This is why I suggest a passwd
> operation when the freeze occured.
>
>   
>> - Whether data-loss is probable on ie; /home partition although it is rw 
>> mounted but untouched before freeze.
>>     
>
> No.