On Fri, Apr 20, 2001 at 07:41:36PM +0300, Maxim Sobolev wrote:
> Konstantin Chuguev wrote:
>
> > Hi,
> >
> > Ruslan Ermilov wrote:
> >
> > > The attached patch incorporates most of OpenBSD fixes to install(1).
> > > It does not include manpage update. Most significant changes are:
> > >
> > > o New flag: -S (atomic install)
> > >
> > > : -S Safe copy. Normally, install unlinks an existing target before
> > > : installing the new file. With the -S flag a temporary file is
> > > : used and then renamed to be the target. The reason this is safer
> > > : is that if the copy or rename fails, the existing target is left
> > > : untouched.
> > >
> >
> > Just curious: why not make this way of doing install default (i.e. always use
> > it)?
>
> It may effectively doubles disk space requirements during copy (when destination
> file is not on a sofdep-enabled partition and is not open at the moment when
> install(8) unlinks it). For small files it doesn't matter, but for a big ones it
> could lead to a problem.
>
I think -S should be made the default for `installworld' (this was the main
reason that triggered this work). But I don't think this should be turned
`on' by default in install(1).
BTW, this binary just completed the `installworld' test on -STABLE.
Cheers,
--
Ruslan Ermilov Oracle Developer/DBA,
[EMAIL PROTECTED] Sunbay Software AG,
[EMAIL PROTECTED] FreeBSD committer,
+380.652.512.251 Simferopol, Ukraine
http://www.FreeBSD.org The Power To Serve
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