OSMC Installer - OS X

Dear readers,

With the latest installer for osx (Download - OSMC), once reaching ‘where would you like to install OSMC?’, not a single disk is shown. Any suggestions?

p.s. This may have something to do with me running El Capitan, not sure though.

solved in the meantime by downloading the disk image for RPi2 ( http://download.osmc.tv/installers/diskimages/OSMC_TGT_rbp2_20150628.img.gz)

and running:

‘sudo dd bs=1m if=path_of_your_image.img of=/dev/rdiskn’

on the command line.

2 Likes

Yes this is a known issue with El capitan due to Apple changing the output of ‘diskutil list’ compared to all previous versions of Mac OS, and the installer uses this to enumerate available drives.

None of the OSMC devs has access to an El capitan system to test with at the moment - you seem handy with the command line so if you are willing to do some testing for us it should help us to get this fixed.

We have command line output. I just don’t have a Mac (and I’m a bit anxious about pushing fixes without verifying them)

Sam

If you need someone to verify those fixes or test something, I’m on El Capitan, too.

We should be good. What I need is access to a Mac. I’m hoping to get (temporary) access to an El Capitan Mac at the end of the month.

Sam

Sure thing. @sam_nazarko @DBMandrake if I can be of any assistance, feel free to contact me. If theres anything I need to pull from a repo or whatever to test, count me in.

Just bought a pi 2 and was getting ready for it by getting some drives ready to try different versions of software as this is my first one and noticing the same issue. Figured it was because of running 10.11! They really changed up Disk Utility and diskutil. Hope to see a fix soon!

The Windows version seems to be running fine on Windows 10 and was my alternative! Didn’t think to try dd, good info!

Problematic OS X version I am seeing it on is 111.

1 Like

I’m also hitting this problem and it took me an age to find that this is a known issue. For every device the installer log is showing that it has decided the device to not be writeable

Wed Oct 7 10:45:08 2015 Decided that /dev/rdisk4 is not writable to us

Now that El Capitan is out and being widely used can I suggest that a note is made on the installer page that this is known not to work on 10.11 and the workaround suggested? Thanks.

  1. Download the disk image you want from https://osmc.tv/download/images/
  2. Unzip by double clicking to give you a .img file
  3. Insert an SD card
  4. From the command line type diskutil list to find the full device path of the SD card (e.g. /dev/disk4)
  5. From the command line unmount the device diskutil unmountDisk /dev/disk4
  6. From the command line write the .img file to the device using dd as follows with the paths to your .img file and device substituted. Note the use of /dev/rdisk here not /dev/disk
    sudo dd bs=1m if=~/Downloads/OSMC_TGT_rbp1_20150929.img of=/dev/rdisk4
    If this doesn’t work try falling back to /dev/disk
    sudo dd bs=1m if=~/Downloads/OSMC_TGT_rbp1_20150929.img of=/dev/rdisk4

If this works you should see something like this

256+0 records in
256+0 records out
268435456 bytes transferred in 57.883626 secs (4637502 bytes/sec)

Seems like a good workaround, would be good to be on the images page indeed. @sam_nazarko @DBMandrake

It would be better to just fix this bug for OS X. The above workaround doesn’t handle preseeding properly.

Sam

@sam_nazarko you’re obviously right it would be better to fix it, but for now a number of people on these forums and who knows how many others who haven’t posted are hitting a wall and/or wasting time troubleshooting. Wouldn’t a quick note be a quick temporary way to save people some pain and a bad first experience of OSMC?

If there’s anything I can do to help test the fix mentioned elsewhere let me know.

Hi

We have had a crack at fixing El Capitan support. Can someone try it now and let us know if it works

Many thanks

Sam

Will do when I get back home in a couple of hours

Thanks @sam_nazarko the updated installer looks to work, at least on the formatted SD card I had to hand.

I tried it on El Cap yesterday, using an SD card that already had raspbmc installed (long overdue for updating).

The first time through the installer, it never got past the ‘unmounting’ stage; I quit the installer, ejected the card and stuck it in my Raspberry Pi, and it still had the old raspbmc installation. Odd.

Ran the installer again, and it went straight through without a hitch. I’ve no idea what caused the problem the first time.

Odd. You could provide the log. Should reside in ~ and is called osmc_installer_log.txt
I’m interested to see what the log thinks about it.

Full log file below, but these seem to be the pertinent lines:

Sun Oct 11 11:15:14 2015 Finished extraction. Going to write image
Sun Oct 11 11:15:14 2015 Requesting confirmation from user
Sun Oct 11 11:43:11 2015 User decided not to write to the disk
Sun Oct 11 11:46:09 2015 OSMC Installer running on Mac OS X

The time gap between the 11:15 and 11:43 is because I thought the installer was writing stuff to the SD card. I came back a few times before 11:43, it seemed to be stuck on the ‘unmounting’ screen. I quit the installer, and restarted it at 11:46, and it worked as expected.

Anything else you’d like me to try?

Sun Oct 11 11:12:43 2015 OSMC Installer running on Mac OS X
Sun Oct 11 11:12:43 2015 Detected locale as en_GB
Sun Oct 11 11:12:43 2015 Attempting to load translation for locale en_GB
Sun Oct 11 11:12:43 2015 Could not load translation!
Sun Oct 11 11:12:43 2015 Resolving a mirror
Sun Oct 11 11:12:45 2015 Resolved mirror to http://manchester.mirror.osmc.tv/osmc/download/
Sun Oct 11 11:12:45 2015 Enumerating supported devices
Sun Oct 11 11:12:45 2015 Added the following devices
Sun Oct 11 11:12:45 2015 Vero
Sun Oct 11 11:12:45 2015 Raspberry Pi
Sun Oct 11 11:12:45 2015 Raspberry Pi 2
Sun Oct 11 11:12:45 2015 Checking for updates
Sun Oct 11 11:12:45 2015 Checking for updates by downloading http://manchester.mirror.osmc.tv/osmc/download//installers/latest_mac
Sun Oct 11 11:12:45 2015 Acquired mirror file
Sun Oct 11 11:12:45 2015 No new update is available
Sun Oct 11 11:13:01 2015 The user has selected English as their language
Sun Oct 11 11:13:01 2015 The user has selected Raspberry Pi as their device
Sun Oct 11 11:13:01 2015 Attempting to download device versions file http://manchester.mirror.osmc.tv/osmc/download/installers/versions_RBP
Sun Oct 11 11:13:02 2015 Found a build called  2015.09-2
Sun Oct 11 11:13:02 2015 Found a build called  2015.08-1
Sun Oct 11 11:13:02 2015 Found a build called  2015.07-1
Sun Oct 11 11:13:02 2015 Found a build called  2015.06-1
Sun Oct 11 11:13:30 2015 The user has selected an online image for Raspberry Pi with build URL : http://manchester.mirror.osmc.tv/osmc/download/installers/diskimages/OSMC_TGT_rbp1_20150929.img.gz
Sun Oct 11 11:13:30 2015 Disabling internal install for device Raspberry Pi as it does not support it
Sun Oct 11 11:13:33 2015 SD installation selected
Sun Oct 11 11:13:36 2015 Enumerating imageable devices for OSX
Sun Oct 11 11:13:37 2015 New disk device entry created with entry point /dev/rdisk0, 121.3 GB free space and label 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Determined SATA as protocol for /dev/rdisk0
Sun Oct 11 11:13:37 2015 Decided to be a DMG? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Determined No as readOnlyMedia for /dev/rdisk0
Sun Oct 11 11:13:37 2015 Decided to be r/o? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Determined No as ejactableProperty for /dev/rdisk0
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:13:37 2015 New disk device entry created with entry point /dev/rd120.1, Macintosh HD free space and label 
Sun Oct 11 11:13:37 2015 Decided that /dev/rd120.1 is not writable to us
Sun Oct 11 11:13:37 2015 New disk device entry created with entry point /dev/rdisk2, 15.9 GB free space and label 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Determined USB as protocol for /dev/rdisk2
Sun Oct 11 11:13:37 2015 Decided to be a DMG? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Determined No as readOnlyMedia for /dev/rdisk2
Sun Oct 11 11:13:37 2015 Decided to be r/o? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:13:37 2015 Determined Yes as ejactableProperty for /dev/rdisk2
Sun Oct 11 11:13:37 2015 New disk device entry created with entry point /dev/rdisk3, +32.4 MB free space and label 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Determined Disk Image as protocol for /dev/rdisk3
Sun Oct 11 11:13:37 2015 ecided to be a DMG? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Determined Yes as readOnlyMedia for /dev/rdisk3
Sun Oct 11 11:13:37 2015 ecided to be r/o? 
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Determined Yes as ejactableProperty for /dev/rdisk3
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:37 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:13:43 2015 Device selected: 2	/dev/rdisk2	15.9 GB	APPLE SD Card Reader Media
Sun Oct 11 11:13:46 2015 EULA has been accepted
Sun Oct 11 11:13:46 2015 Downloading http://manchester.mirror.osmc.tv/osmc/download/installers/diskimages/OSMC_TGT_rbp1_20150929.img.gz
Sun Oct 11 11:15:05 2015 Download successful
Sun Oct 11 11:15:06 2015 Extracting /Users/paul/OSMC_TGT_rbp1_20150929.img.gz
Sun Oct 11 11:15:14 2015 Finished extraction. Going to write image
Sun Oct 11 11:15:14 2015 Requesting confirmation from user
Sun Oct 11 11:43:11 2015 User decided not to write to the disk
Sun Oct 11 11:46:09 2015 OSMC Installer running on Mac OS X
Sun Oct 11 11:46:10 2015 Detected locale as en_GB
Sun Oct 11 11:46:10 2015 Attempting to load translation for locale en_GB
Sun Oct 11 11:46:10 2015 Could not load translation!
Sun Oct 11 11:46:10 2015 Resolving a mirror
Sun Oct 11 11:46:10 2015 Resolved mirror to http://manchester.mirror.osmc.tv/osmc/download/
Sun Oct 11 11:46:10 2015 Enumerating supported devices
Sun Oct 11 11:46:10 2015 Added the following devices
Sun Oct 11 11:46:10 2015 Vero
Sun Oct 11 11:46:10 2015 Raspberry Pi
Sun Oct 11 11:46:10 2015 Raspberry Pi 2
Sun Oct 11 11:46:10 2015 Checking for updates
Sun Oct 11 11:46:10 2015 Checking for updates by downloading http://manchester.mirror.osmc.tv/osmc/download//installers/latest_mac
Sun Oct 11 11:46:10 2015 Acquired mirror file
Sun Oct 11 11:46:10 2015 No new update is available
Sun Oct 11 11:46:15 2015 The user has selected English as their language
Sun Oct 11 11:46:15 2015 The user has selected Raspberry Pi as their device
Sun Oct 11 11:46:15 2015 Attempting to download device versions file http://manchester.mirror.osmc.tv/osmc/download/installers/versions_RBP
Sun Oct 11 11:46:15 2015 Found a build called  2015.09-2
Sun Oct 11 11:46:15 2015 Found a build called  2015.08-1
Sun Oct 11 11:46:15 2015 Found a build called  2015.07-1
Sun Oct 11 11:46:15 2015 Found a build called  2015.06-1
Sun Oct 11 11:46:18 2015 The user has selected an online image for Raspberry Pi with build URL : http://manchester.mirror.osmc.tv/osmc/download/installers/diskimages/OSMC_TGT_rbp1_20150929.img.gz
Sun Oct 11 11:46:18 2015 Disabling internal install for device Raspberry Pi as it does not support it
Sun Oct 11 11:46:19 2015 SD installation selected
Sun Oct 11 11:46:21 2015 Enumerating imageable devices for OSX
Sun Oct 11 11:46:21 2015 New disk device entry created with entry point /dev/rdisk0, 121.3 GB free space and label 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Determined SATA as protocol for /dev/rdisk0
Sun Oct 11 11:46:21 2015 Decided to be a DMG? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Determined No as readOnlyMedia for /dev/rdisk0
Sun Oct 11 11:46:21 2015 Decided to be r/o? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Determined No as ejactableProperty for /dev/rdisk0
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk0 is not writable to us
Sun Oct 11 11:46:21 2015 New disk device entry created with entry point /dev/rd120.1, Macintosh HD free space and label 
Sun Oct 11 11:46:21 2015 Decided that /dev/rd120.1 is not writable to us
Sun Oct 11 11:46:21 2015 New disk device entry created with entry point /dev/rdisk2, 15.9 GB free space and label 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Determined USB as protocol for /dev/rdisk2
Sun Oct 11 11:46:21 2015 Decided to be a DMG? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Determined No as readOnlyMedia for /dev/rdisk2
Sun Oct 11 11:46:21 2015 Decided to be r/o? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk2 is not writable to us
Sun Oct 11 11:46:21 2015 Determined Yes as ejactableProperty for /dev/rdisk2
Sun Oct 11 11:46:21 2015 New disk device entry created with entry point /dev/rdisk3, +32.4 MB free space and label 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Determined Disk Image as protocol for /dev/rdisk3
Sun Oct 11 11:46:21 2015 ecided to be a DMG? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Determined Yes as readOnlyMedia for /dev/rdisk3
Sun Oct 11 11:46:21 2015 ecided to be r/o? 
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Determined Yes as ejactableProperty for /dev/rdisk3
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:21 2015 Decided that /dev/rdisk3 is not writable to us
Sun Oct 11 11:46:25 2015 Device selected: 2	/dev/rdisk2	15.9 GB	APPLE SD Card Reader Media
Sun Oct 11 11:46:28 2015 EULA has been accepted
Sun Oct 11 11:46:28 2015 Downloading http://manchester.mirror.osmc.tv/osmc/download/installers/diskimages/OSMC_TGT_rbp1_20150929.img.gz
Sun Oct 11 11:46:33 2015 File claims to be already an 'img'. No need to extract.
Sun Oct 11 11:46:33 2015 Requesting confirmation from user
Sun Oct 11 11:46:35 2015 User confirmed
Sun Oct 11 11:46:36 2015 going to start osa
Sun Oct 11 11:46:36 2015 pasting admin script to process do shell script "dd if=/Users/paul/OSMC_TGT_rbp1_20150929.img of=/dev/rdisk2 bs=1m conv=sync && sync" with administrator privileges
Sun Oct 11 11:46:36 2015 waiting for finish
Sun Oct 11 11:47:08 2015 osa claims to be done...collect output and verify
Sun Oct 11 11:47:08 2015 Imaging was successful
Sun Oct 11 11:47:08 2015 Image successfully written to device
Sun Oct 11 11:47:08 2015 Deleting the uncompressed image to save space
Sun Oct 11 11:47:08 2015 Creating preseeder
Sun Oct 11 11:47:08 2015 Adding preseed stringd-i target/storage string sd
Sun Oct 11 11:47:08 2015 Adding preseed stringd-i network/interface string eth
Sun Oct 11 11:47:08 2015 Adding preseed stringd-i network/auto boolean true
Sun Oct 11 11:47:08 2015 Writing preseeder
Sun Oct 11 11:47:08 2015 Mounting the first filesystem on /dev/rdisk2
Sun Oct 11 11:47:08 2015 Trying to umount before we are remounting and writing the preseed.
Sun Oct 11 11:47:09 2015 Mounting /dev/rdisk2s1 to /var/folders/3j/56y83sjs7jb9c88g9c2gx9hw0000gn/T/osmc_mnt
Sun Oct 11 11:47:09 2015 Filesystem is mounted
Sun Oct 11 11:47:09 2015 Writing the preseeder to filesystem
Sun Oct 11 11:47:09 2015 Finished. Syncing...
Sun Oct 11 11:47:09 2015 Unmount in any case...
Sun Oct 11 11:47:09 2015 Final sync.

This looks like you missed “Confirm”-Dialog These lines mean, that the confirm dialog should have been shown. The second line means, that you clicked “No” after 30 minutes. I would have to retest if there’s a timout for the confirmation (which I find unlikely) or if the dialog can pop-under instead of pop-up.

There is no timeout

I think on some operating systems or even Linux distros with different desktop environments the Yes and No buttons can be swapped round so the user routinely clicks the wrong one out of habit. We should see if we can override this behaviour in Qt.

Sam