Thank Jean-Pierre:)
I am so sorry for my delay because of some job's causes. dd if=/dev/bob/test-pure-ntfs-upon-lvm count=1 | od -t x1 | head -n 1 # ??????1+0 ?????? # ??????1+0 ?????? # 512????(512 B)????????0.00025462 ????2.0 MB/?? # 0000000 33 c0 8e d0 bc 00 7c 8e c0 8e d8 be 00 7c bf 00 # note: locale is "LANG=zh_CN.UTF-8" I do this same test again, details besides above are below: lsblk # sdb&sdc available pvcreate /dev/sdb pvcreate /dev/sdc vgcreate bob /dev/sdb /dev/sdc lvcreate -L 50G -n test-pure-ntfs-upon-lvm bob lsblk # sdb 8:16 0 557.8G 0 disk # ????bob-test--pure--ntfs--upon--lvm 253:2 0 50G 0 lvm # sdc 8:32 0 1.1T 0 disk virsh start __ws2008r2x64 virsh attach-disk __ws2008r2x64 /dev/bob/test-pure-ntfs-upon-lvm vda # then format vda within __ws2008r2x64 # "cmd" and run "wmic logicaldisk > wmic-logicaldisk.txt" # wmic-logicaldisk.txt shows e drive(vda) is ntfs # write something in e drive(vda) and shutdown __ws2008r2x64 rpm -qa |grep ntfs # ntfsprogs-2016.2.22-1.el7.x86_64 # ntfs-3g-2016.2.22-1.el7.x86_64 # ntfs-3g-debuginfo-2016.2.22-1.el7.x86_64 # ntfs-3g-devel-2016.2.22-1.el7.x86_64 mkidr /mnt/ntfs ntfs-3g /dev/bob/test-pure-ntfs-upon-lvm /mnt/ntfs/ # Failed to mount '/dev/mapper/bob-test--pure--ntfs--upon--lvm': invalid parameters. # The device '/dev/mapper/bob-test--pure--ntfs--upon--lvm' doesn't seem to have a valid NTFS. # Maybe the wrong device is used? Or the whole disk instead of a partition? # Or the other way around? ll /dev/bob # lrwxrwxrwx 1 root root 7 2?? 22 11:05 test-pure-ntfs-upon-lvm -> ../dm-2 ll /dev/block # lrwxrwxrwx 1 root root 7 2?? 17 17:30 253:0 -> ../dm-0 # lrwxrwxrwx 1 root root 7 2?? 17 17:30 253:1 -> ../dm-1 # lrwxrwxrwx 1 root root 7 2?? 22 11:05 253:2 -> ../dm-2 # lrwxrwxrwx 1 root root 6 2?? 17 17:30 8:0 -> ../sda # lrwxrwxrwx 1 root root 7 2?? 17 17:30 8:1 -> ../sda1 # lrwxrwxrwx 1 root root 6 2?? 22 10:00 8:16 -> ../sdb # lrwxrwxrwx 1 root root 7 2?? 17 17:30 8:2 -> ../sda2 # lrwxrwxrwx 1 root root 7 2?? 17 17:30 8:3 -> ../sda3 # lrwxrwxrwx 1 root root 6 2?? 22 10:00 8:32 -> ../sdc # lrwxrwxrwx 1 root root 6 2?? 17 17:30 8:48 -> ../sdd Thx for anyone who check this mail:) Regards! ------------------ ???????? ------------------ ??????: "Jean-Pierre Andr??";<jean-pierre.an...@wanadoo.fr>; ????????: 2017??2??10??(??????) ????6:45 ??????: "xiucai"<hualing...@foxmail.com>; "ntfs-3g-devel"<ntfs-3g-devel@lists.sourceforge.net>; ????: Re: [ntfs-3g-devel] why failed to mount n NTFS block devicebased on LVM and formated by VM(Win7-Guest, CentOS7-Host)? Hi What is your device path which represents your ntfs partition /dev/centos7/test-pure-ntfs or /dev/mapper/centos7-test--pure--ntfs or /dev/mapper/centos7-test--pure--ntfs1 ? Please post the outputs of (as root) : dd if=/dev/DEVICE count=1 | od -t x1 | head -n 1 replacing DEVICE by centos7/test-pure-ntfs etc. Jean-Pierre xiucai wrote: > hi, > > my steps are: > 1, lvcreate, make a lv, named test-pure-ntfs, vg is > centos7(consisted of sdb); > 2, virsh attach-disk, attach test-pure-ntfs to an > VM(Windows-Server2008R2x64); > 3, make this new disk online and format it(MBR+NTFS); > 4, then this disk can rw normally within VM; > 5, ntfs-3g, mount test-pure-ntfs on a existed path(/mnt/ntfs/), but > failed! > > so, why? > do not ntfs-3g support my case? > > ==========here are parts of my actions========== > [root@localhost mnt]# mount -t ntfs-3g /dev/centos7/test-pure-ntfs > /mnt/ntfs/ > NTFS signature is missing. > Failed to mount '/dev/mapper/centos7-test--pure--ntfs': invalid parameter > The device '/dev/mapper/centos7-test--pure--ntfs' doesn't seem to have a > valid NTFS. > Maybe the wrong device is used? Or the whole disk instead of a > partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? > > [root@localhost mnt]# fdisk -l |grep NTFS |grep pure > /dev/mapper/centos7-test--pure--ntfs1 2048 104853503 > 52425728 7 HPFS/NTFS/exFAT > [root@localhost mnt]# lsblk |grep pure > ????centos7-test--pure--ntfs 253:4 0 50G 0 lvm > [root@localhost mnt]# lvscan |grep pure > ACTIVE '/dev/centos7/test-pure-ntfs' [50.00 GiB] inherit > > [root@localhost mnt]# ntfs-3g /dev/centos7/test-pure-ntfs /mnt/ntfs/ > <try again, equals to mount~~~ above> > NTFS signature is missing. > Failed to mount '/dev/mapper/centos7-test--pure--ntfs': invalid parameter > The device '/dev/mapper/centos7-test--pure--ntfs' doesn't seem to have a > valid NTFS. > Maybe the wrong device is used? Or the whole disk instead of a > partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? > > thanks for anyone who check this email :) > > regards! > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > > > > _______________________________________________ > ntfs-3g-devel mailing list > ntfs-3g-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ntfs-3g-devel >
wmic-logicaldisk.txt
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