Re: How to predict drive number change for 7.3->8.1 upgrade?
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Michael Sperber wrote:
> "Marat N.Afanasyev"<amarat@ksu.ru> writes:
>
>> you may try the following commands:
>>
>> sysctl kern.geom.debugflags=3D16
>>
>> foreach fs (your-filesystems)
>> glabel label your-$fs-label your-$fs-device
>> end
>>
>> echo geom_label_load=3D"YES">> /boot/loader.conf
>> reboot
>>
>> and see if the labels appear in /dev/label
>
> Is this safe to do? The man page for glabel seems to imply that glabel=
> should be used before newfs, and tunefs after newfs.
>
probably safe, but I didn't try this. there's another option: you may=20
consider to create gmirror device that allows you to shoot two ducks=20
with one arrow: 1) make your system fail-safe 2) all your devices will=20
be in form /dev/mirror/devXsYl regardless of underlying adX-s. to do=20
this all you need is a second hard drive large enough to serve as copy=20
of your boot drive
--=20
SY, Marat
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