Date: Thu, 12 May 2005 11:32:04 -0400 From: Brian Fundakowski Feldman <green@freebsd.org> To: Juho Vuori <juho.vuori@kepa.fi> Cc: freebsd-hackers@freebsd.org Subject: Re: Finding out names of mountable devices Message-ID: <20050512153204.GD2058@green.homeunix.org> In-Reply-To: <42836020.4050500@kepa.fi> References: <42836020.4050500@kepa.fi>
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On Thu, May 12, 2005 at 04:54:40PM +0300, Juho Vuori wrote: > Tried on freebsd-questions without an answer. I suppose this is not > doable, but I'll ask here anyway. > > If I plug in e.g. a USB thumb drive, which becomes, say, umass0. > Normally something like /dev/da0 will also be created and slices of that > device may be mounted. But is there a API for finding out what is the > corresponding block device for umass devices? The device driver writes > that to syslog, but reading logs for something like that is quite clumsy. One easy way is to look for changes in the GEOM topology: green# sysctl -b kern.geom.conftxt 0 DISK cd0 4627595264 2048 hd 0 sc 0 0 DISK ad0 164696555520 512 hd 16 sc 63 1 MBR ad0s1 164694749184 512 i 0 o 32256 ty 165 2 BSD ad0s1g 141340864512 512 i 6 o 23353884672 ty 7 2 BSD ad0s1f 21474836480 512 i 5 o 1879048192 ty 7 2 BSD ad0s1e 268435456 512 i 4 o 1610612736 ty 7 2 BSD ad0s1d 268435456 512 i 3 o 1342177280 ty 7 2 BSD ad0s1c 164694749184 512 i 2 o 0 ty 0 2 BSD ad0s1b 1073741824 512 i 1 o 0 ty 1 2 BSD ad0s1a 268435456 512 i 0 o 1073741824 ty 7 -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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