Date: Thu, 31 May 2012 19:39:30 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Jens Schweikhardt <schweikh@schweikhardt.net> Cc: questions@freebsd.org Subject: Re: How to use an external USB3.0 drive with 4k sectors? Message-ID: <alpine.BSF.2.00.1205311932230.85245@wonkity.com> In-Reply-To: <20120531155704.GA2828@schweikhardt.net> References: <20120531155704.GA2828@schweikhardt.net>
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On Thu, 31 May 2012, Jens Schweikhardt wrote: > so I decided to try two HW technology advancements in one go. > I have a brand new shiny 1TB USB3.0 external disk, that when plugged > to an USB2(two!) reports > > da5 at umass-sim2 bus 2 scbus6 target 0 lun 0 > da5: <ST1000LM 024 HN-M101MBB 0000> Fixed Direct Access SCSI-2 device > da5: 40.000MB/s transfers > da5: 953869MB (244190646 4096 byte sectors: 255H 63S/T 15200C) > > (The vendor, Jmicron, has put an NTFS on it, with a disk manual as a pdf file. > Strangely, I cannot mount it with > # ll /dev/da5* > crw-r----- 1 root operator 0, 236 May 31 15:05 /dev/da5 > crw-r----- 1 root operator 0, 237 May 31 15:05 /dev/da5s1 > # mount -t ntfs -o ro /dev/da5s1 /mnt > mount_ntfs: /dev/da5s1: Invalid argument > ) It may not actually be an NTFS filesystem. Try # file -s /dev/da5s1 Much more likely to be a USB problem than something to do with block size.
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