Date: Fri, 6 Oct 1995 05:45:36 -0500 (CDT) From: "Doug S." <serges@umr.edu> To: terry@lambert.org (Terry Lambert) Cc: freebsd-questions@freefall.freebsd.org Subject: Re: tunefs Message-ID: <m0t1AHY-0004IQC@nero.x10siv.org> In-Reply-To: <199510060009.RAA05011@phaeton.artisoft.com> from "Terry Lambert" at Oct 5, 95 05:09:04 pm
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Thanks, to all who replied to my query. > > > Is there a way under FBSD to 'tunefs' the / filesystem, WITHOUT > > > creating another filesystem and without making an existing filesystem > > > bootable? > > > > You must can only tunefs a dismounted filesystem - so you must do one of > > a few things: > > Oh heck; I forgot that I had hacked that. > > The main problem is getting the tuning changes into the in-core copy of > the struct so that it effects subsequent operations on the FS in question. > > The -current code can't do this, so that's why the mount/remount. Okay. There reason why I originally inquired about this is because I recalled from SVR4.0 that it was possible to tune a mounted filesystem (hmmm... maybe that was SunOS4.0.3??... Im not sure which). At any rate, I wanted to know what the current FBSD policy was on the matter. > The fix is to replace the read/write interface with an in/out ioctl() > interface. Ah... Okay. There we go. And I take it the 'fix' isnt to be found floating around somewhere on the FBSD distribution. Thanks, Serge. serges@umr.edu -------------- > > Terry Lambert > terry@lambert.org > --- > Any opinions in this posting are my own and not those of my present > or previous employers.
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