Date: Wed, 8 Feb 2017 18:31:38 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Chris Hellberg <chris@chrishellberg.com>, freebsd-usb@freebsd.org Subject: Re: mount USB device Message-ID: <d8655658-4218-20dd-b5e9-c37cb44f4f92@selasky.org> In-Reply-To: <1485637315.32561.862669136.6A6031BC@webmail.messagingengine.com> References: <1485637315.32561.862669136.6A6031BC@webmail.messagingengine.com>
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On 01/28/17 22:01, Chris Hellberg wrote: > Hi, > > I have a freebsd guest in a VM that receives a USB controller via PCI > passthrough. There was a USB drive inserted in the port when the host > and freebsd guest were booted. I'd like to be able to mount that drive. > The device is detected with usbdevs: > > root@NYCD-5K% usbdevs > addr 1: UHCI root hub, Intel > addr 1: EHCI root hub, Intel > addr 2: product 0x0020, vendor 0x8087 > addr 3: B-READE, GENERICU > root@NYCD-5K% > > However the kernel does not detect the drive (normally there would be > /dev/da0s1 present as well as the block device): > > root@NYCD-5K% ls -la /dev/da* > crw-r----- 1 root operator 0, 73 Jan 27 23:30 /dev/da0 > root@NYCD-5K% > > Fdisk can't get at the device: > > root@NYCD-QFX5100-48S-2:RE:0% fdisk /dev/da0 > fdisk: cannot open disk /dev/da0: Device not configured > root@NYCD-QFX5100-48S-2:RE:0% > > Unfortunately the system does not have the camcontrol binary nor lsusb > nor gpart. There is /usr/sbin/usbd installed on the system but I don't > know if that helps. And unfortunately the system only allows signed > binaries so it's essentially a locked environment from the perspective > of installing any other binaries. > > Any ideas how I can get at the disk. I can easily get everything working > fine if I pull out and reinsert the USB drive. Hi, Some formats don't have a partition label. Did you try to mount /dev/da0 directly ? Are you expecting labels to be present? --HPS
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