> On Mar 23, 2024, at 11:04 AM, Doc Shipley via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> On 3/23/24 09:53, Paul Koning via cctalk wrote:
>> Yes.  So Unix did have a shutdown procedure, and it was particularly 
>> critical to do it and do it right.  I remember when I first heard about 
>> Unix, when at the U of Illinois -- some PDP11s in the Center for Advanced 
>> Computation ran it, for their Arpanet connection.  The story was that CAC 
>> was a good facility to run Unix because it had very reliable power -- it was 
>> built to house Illiac 4 before that machine was moved to a military facility 
>> in response to campus protests.  So there was little worry about having to 
>> repair the file system manually after a power failure -- I guess fsck hadn't 
>> been created yet, or perhaps wasn't reliable yet.
>>      paul
> 
> You say that like fsck is reliable now....

:-} Then again, mostly it's no longer relevant, given journaled file systems.

        paul

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