Re: mount shows mounted partition as /dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF3

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On 7 October 2014 21:52:05 GMT+01:00, jd1008 <jd1008@xxxxxxxxx> wrote:
># mount | grep sdc3
>/dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF3 on /sdc3 type ext4 
>(rw,relatime,journal_checksum)
>
>So, how come I do not see it listed as I see /dev/sda3. To wit:
># mount | grep sda3
>/dev/sda3 on / type ext4 (rw,relatime,data=ordered)
>
>If I unmount /dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF3
>
># umount /dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF3
>
>and I try
># mount /dev/sdc3 /sdc3
>mount: special device /dev/sdc3 does not exist
>
># grep sdc3 /etc/fstab
>
>UUID=e64d7b94-1ffb-4a2e-ae59-5f8e54b6cab9 /sdc3         ext4 
>noauto,data=ordered,journal_checksum    3 3
>
># blkid /dev/sdc3
>/dev/sdc3: UUID="e64d7b94-1ffb-4a2e-ae59-5f8e54b6cab9" TYPE="ext2" 
>PARTUUID="96e20bf8-03"
>
>
>dmesg shows these errors:
>
>[   25.083098] systemd-udevd[385]: inotify_add_watch(7, /dev/sdc3, 10) 
>failed: No such file or directory
>[   25.084057] systemd-udevd[386]: inotify_add_watch(7, /dev/sdc4, 10) 
>failed: No such file or directory
>[   25.085042] systemd-udevd[384]: inotify_add_watch(7, /dev/sdc2, 10) 
>failed: No such file or directory
>[   25.087052] systemd-udevd[381]: inotify_add_watch(7, /dev/sdc1, 10) 
>failed: No such file or directory
>
>
>Runing partprobe:
>
># partprobe
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF4 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF3 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF2 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF1 
>failed: Device or resource busy
>Warning: parted was unable to re-read the partition table on 
>/dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF (Device or resource 
>busy).  This means Linux won't know anything about the modifications
>you 
>made.
>device-mapper: create ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF1 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF1 
>failed: Device or resource busy
>device-mapper: create ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF2 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF2 
>failed: Device or resource busy
>device-mapper: create ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF3 
>failed: Device or resource busy
>device-mapper:remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF3 
>failed: Device or resource busy
>device-mapper: create ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF4 
>failed: Device or resource busy
>device-mapper: remove ioctl on HGST_HTS721010A9E630_JR10006P0BSEEF4 
>failed: Device or resource busy
>device-mapper: remove ioctl on WDC_WD20NPVX-00EA4T0_WD-WXV1E53KAE83p3 
>failed: Device or resource busy
>Warning: parted was unable to re-read the partition table on 
>/dev/mapper/WDC_WD20NPVX-00EA4T0_WD-WXV1E53KAE83 (Device or resource 
>busy).  This means Linux won't know anything about the modifications
>you 
>made.
>device-mapper: create ioctl on WDC_WD20NPVX-00EA4T0_WD-WXV1E53KAE83p3 
>failed: Device or resource busy
>device-mapper: remove ioctl on WDC_WD20NPVX-00EA4T0_WD-WXV1E53KAE83p3 
>failed: Device or resource busy
>
>So, whatmight be causing this?
>
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What's the output of lsblk?

It looks a bit like your using LVM
--
Junk
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