mount shows mounted partition as /dev/mapper/HGST_HTS721010A9E630_JR10006P0BSEEF3

jd1008 jd1008 at gmail.com
Tue Oct 7 23:42:20 UTC 2014


On 10/07/2014 05:23 PM, Junk wrote:
> On 7 October 2014 21:52:05 GMT+01:00, jd1008 <jd1008 at gmail.com> 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
$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 931.5G  0 disk
├─sda1   8:1    0   128M  0 part
├─sda2   8:2    0    32G  0 part
├─sda3   8:3    0 891.4G  0 part /
└─sda4   8:4    0     8G  0 part [SWAP]
sdb      8:16   0   1.8T  0 disk
└─sdb3   8:19   0   1.8T  0 part
sdc      8:32   0 465.8G  0 disk
├─sdc1   8:33   0  41.8G  0 part
├─sdc2   8:34   0   202M  0 part
├─sdc3   8:35   0   416G  0 part
├─sdc4   8:36   0     1K  0 part
└─sdc5   8:37   0   7.8G  0 part
sr0     11:0    1  1024M  0 rom

I have no LVM's configured.



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