Date: Tue, 20 Oct 2009 11:31:02 -0400 From: michael <michael.copeland@gmail.com> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: glabel clarification Message-ID: <4ADDD7B6.7030506@gmail.com> In-Reply-To: <20091020124354.85465feb.freebsd@edvax.de> References: <4ADC6D89.10600@videotron.ca> <57200BF94E69E54880C9BB1AF714BBCBA57086@w2003s01.double-l.local> <4ADC772F.3060303@videotron.ca> <6201873e0910190729v12f66335xe93d0c83a0ee7aee@mail.gmail.com> <4ADC794F.3050505@videotron.ca> <6201873e0910190737o1d849953h6761085ba532f8f6@mail.gmail.com> <4ADC7BD3.30301@videotron.ca> <6201873e0910190809h3cd4416bxaaf526008110447a@mail.gmail.com> <4ADC8C9A.4030903@videotron.ca> <6201873e0910190912w42325e0q541d46bc2a2972fb@mail.gmail.com> <4ADC9DE6.6020900@videotron.ca> <20091020053531.758c5a67.freebsd@edvax.de> <4ADD89A1.9060204@videotron.ca> <20091020124354.85465feb.freebsd@edvax.de>
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Polytropon wrote: > On Tue, 20 Oct 2009 05:57:53 -0400, PJ <af.gourmet@videotron.ca> wrote: > >> Exactly what is happening on my system. That's basically what has been >> troubling me. I cloned ad12 to ad6 and then wanted to boot from ad6... >> well, everytime I boot from ad6 the boot is from ad12 because both have >> identical labels. The only way out is to change the labels on ad6 to >> point to ad6 partitions and not to /dev/label/name. >> > > That is a solution for the case that you want to keep both > disks running in the system. If you just want to make one > disk (b) available in order to swap it when the master disk > fails (w), then labels are fine. > > I'm not sure what your main purpose of cloning the disks > was. Two options: > a) keep two disks in sync, so you can use your > backup disk when the working disk fails and > needs to be extracted > b) make a clone of your working disk so it can > be placed into another system > > > > >> So the only reason to use glabel, in my case, is to boot from the clone >> on another system without worrying about the actual disk label. Once >> it's booted, the label can be changed to conform to the label on the new >> system. >> > > The label doesn't need to be changed when the disk in question > is placed into another system. Labels work independent from > the different settings you might find in different computers, > such as different device names (due to different position on > the controller). > > > > LONGEST glabel discussion ever.
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