Can't install osmc on Sandisck card - keeps saying can't umnount it

Help and Support Raspberry Pi
1

Hi,

Trying to install osmc on a new sd card. Going through the install process and when it gets to the point

‘Are you sure you want to install OSMC on /dev/sdb?
OSMC is not responsible for loss of personal data.’

I click on yes and get the following msg every time:

Could not unmount device /dev/sdb.Check the log for error messages. OSMC must exit now.

Here’s the contents of the logfile. Any help greatly apreciated. BTW trying to run this under crouton on a chromebook.

Wed Dec 13 15:41:53 2017 OSMC Installer running on Linux
Wed Dec 13 15:41:53 2017 Detected locale as en_US
Wed Dec 13 15:41:53 2017 Attempting to load translation for locale en_US
Wed Dec 13 15:41:53 2017 Could not load translation!
Wed Dec 13 15:41:53 2017 Resolving a mirror
Wed Dec 13 15:41:53 2017 Resolved mirror to Index of /mirrors/osmc/osmc/download
Wed Dec 13 15:41:53 2017 Enumerating supported devices
Wed Dec 13 15:41:53 2017 Added the following devices
Wed Dec 13 15:41:53 2017 Vero 4K
Wed Dec 13 15:41:53 2017 Vero 2
Wed Dec 13 15:41:53 2017 Vero
Wed Dec 13 15:41:53 2017 Raspberry Pi 1 / Zero
Wed Dec 13 15:41:53 2017 Raspberry Pi 2 / 3
Wed Dec 13 15:41:53 2017 Apple TV
Wed Dec 13 15:41:53 2017 Checking for updates
Wed Dec 13 15:41:53 2017 Checking for updates by downloading http://anorien.csc.warwick.ac.uk/mirrors/osmc/osmc/download//installers/latest_linux
Wed Dec 13 15:41:53 2017 Acquired mirror file
Wed Dec 13 15:41:53 2017 No new update is available
Wed Dec 13 15:42:00 2017 The user has selected English as their language
Wed Dec 13 15:42:00 2017 The user has selected Raspberry Pi 2 / 3 as their device
Wed Dec 13 15:42:00 2017 Attempting to download device versions file http://anorien.csc.warwick.ac.uk/mirrors/osmc/osmc/download/installers/versions_RBP2
Wed Dec 13 15:42:00 2017 Found a build called 2017.10-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.08-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.07-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.06-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.05-2
Wed Dec 13 15:42:00 2017 Found a build called 2017.04-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.03-1
Wed Dec 13 15:42:00 2017 Found a build called 2017.02-2
Wed Dec 13 15:42:00 2017 Found a build called 2017.01-1
Wed Dec 13 15:42:04 2017 The user has selected an online image for Raspberry Pi 2 / 3 with build URL : http://anorien.csc.warwick.ac.uk/mirrors/osmc/osmc/download/installers/diskimages/OSMC_TGT_rbp2_20171102.img.gz
Wed Dec 13 15:42:04 2017 Disabling internal install for device Raspberry Pi 2 / 3 as it does not support it
Wed Dec 13 15:42:06 2017 SD installation selected
Wed Dec 13 15:42:06 2017 Running partprobe to inform operating system about partition table changes
Wed Dec 13 15:42:07 2017 Enumerating imageable devices for Linux
Wed Dec 13 15:42:07 2017 New disk device entry created with entry point /dev/sda, 128.0GB free space and label
Wed Dec 13 15:42:07 2017 New disk device entry created with entry point /dev/mapper/encstateful, 36.3GB free space and label
Wed Dec 13 15:42:07 2017 Can’t open /sys/block/ mapper/removable
Wed Dec 13 15:42:07 2017 New disk device entry created with entry point /dev/sdb, 15.9GB free space and label
Wed Dec 13 15:42:09 2017 Device selected: 38 /dev/sdb 15.9GB
Wed Dec 13 15:42:11 2017 EULA has been accepted
Wed Dec 13 15:42:11 2017 Downloading http://anorien.csc.warwick.ac.uk/mirrors/osmc/osmc/download/installers/diskimages/OSMC_TGT_rbp2_20171102.img.gz
Wed Dec 13 15:43:04 2017 Download successful
Wed Dec 13 15:43:05 2017 Extracting /home/mark/OSMC_TGT_rbp2_20171102.img.gz
Wed Dec 13 15:43:10 2017 Finished extraction. Going to write image
Wed Dec 13 15:43:10 2017 Requesting confirmation from user
Wed Dec 13 15:43:19 2017 User confirmed
Wed Dec 13 15:43:19 2017 Unmounting /dev/sdb
Wed Dec 13 15:43:19 2017 Trying to unmount /dev/sdb1 at /media/removable/SD\040Card
Wed Dec 13 15:43:19 2017 An error occured unmounting the partition. ERROR: 2
Wed Dec 13 15:43:19 2017 Trying to unmount /dev/sdb1 at /var/host/media/removable/SD\040Card
Wed Dec 13 15:43:19 2017 An error occured unmounting the partition. ERROR: 2
Wed Dec 13 15:43:19 2017 Running partprobe to inform operating system about partition table changes

2

Can you unmount it manually?

Even if you can’t, try it in the Pi. I think I had this and it still worked.

3

Try another card.

4

Its a blank card, there’s nothing on it.

How would I manually unmount it?

5

It’s a brand new card, the second one I’ve tried this week.

6

If it shows up in your file browser, check there are some files on it (7, including filesystem.tar.xz) then there should be a menu item to unmount. If no menu item, just turn the machine off! Sorry, I don’t know much about chromebook.

7

It does show in the file browser but there’s no option to unmount it.
There is an Eject option but if I click on that it says ‘Not authorized to perform that operation’.

I’m running ubuntu 14.04 under crouton which acts like any other install of 14.04 so the chromebook should get in the way.

8

Terminal - sudo umount /dev/sdb1

9

I tried that umount command, retried the install and it worked.

Thanks a lot!

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