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Old 04-30-2016, 07:40 AM   #1
Slowbey
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RasPi 3 - problems installing Ubuntu Mate 16.04 LTS


I have downloaded ubuntu-mate-16.04-desktop-armhf-raspberry-pi.img.xz to a Linux machine running Mint 17.3 and am trying to unpack this to an 8GB MicroSD card using the disk utility.
It goes through the routine of unpacking and tells me it is complete, but when I try to boot the RasPi I get the attached screenshot.
I have managed to install the previous beta version without problems on the same SD card, but am getting nowhere trying to install the LTS edition.
Can anyone help please?
Many thanks
David
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Old 04-30-2016, 07:52 AM   #2
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I suspect it isn't compatible with the Pi3. I believe the 3 has a 64 bit CPU and some things may be a bit different.
 
Old 04-30-2016, 07:53 AM   #3
beachboy2
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Slowbey,

Try the solution for 179,2 on here:

http://raspberrypi.stackexchange.com...own-block179-6
 
Old 04-30-2016, 08:12 AM   #4
Slowbey
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Thanks
I have changed the cmdline.txt file to a "6" suffix and am now getting the

Kernel panic-not syncing: VFS: unable to mount root fs on unknown-block(179,6)

message when I boot the RasPi.

Unlike the posting to which you refer, I am not using NOOBS, but a direct Ubuntu Mate install, and nothing happens differently when I try to boot holding down the Shift key.

Any thoughts please?
 
Old 04-30-2016, 08:20 AM   #5
syg00
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The pi2 images work fine on the pi3 - same as 32-bit working on x86_64. I don't use Ubuntu but I'd guess it uses 2 primary partitions like Arch, so you would expect the change to 6 to fail. Plug the card into a PC and fsck both partitions.
You are getting a kernel oops - open a bug against Ubuntu.
 
Old 04-30-2016, 08:58 AM   #6
Slowbey
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Thanks

fsck automatically removed a dirty bit on sdb1, the boot partition, but is stating that "either the superblock or the partition is likely to be corrupt" for sdb2, the root partition.

(Sorry, haven't worked out how to cut and paste from the terminal into this window as all the usual shortcuts don't seem to work)
David
 
Old 04-30-2016, 10:15 AM   #7
jpollard
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Unless you have two USB disks installed, /dev/sdb doesn't exist.

Should be /dev/mmcblkp2

You also might check the fstab file for its entry.
 
Old 04-30-2016, 11:39 AM   #8
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I have the microSD card mounted in an SD adapter in my Linux netbook doing the formatting and terminal work. It is mounted as /dev/sdb ok in the file directory, but I construe from the fsck information that i have a formatting or partition problem with the microSD card.
Will try to go back to the beta download which worked and see if the thing falls over with an update/upgrade - I'll leave the LTS version for now, I think.
Best regards
David
 
Old 04-30-2016, 12:25 PM   #9
jpollard
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I believe the one in the netbook is going through a USB adaptor.

When I plug that into my Raspberry PI it gets identified as /dev/sda.

The PI doesn't use the USB for booting - goes directly to the device, which is why it gets a different name.
 
Old 04-30-2016, 03:50 PM   #10
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Quote:
Originally Posted by Slowbey View Post
fsck automatically removed a dirty bit on sdb1, the boot partition, but is stating that "either the superblock or the partition is likely to be corrupt" for sdb2, the root partition.
If this keeps happening, try a different SDcard. I had a brand new card fail immediately.
 
Old 05-01-2016, 01:08 AM   #11
Slowbey
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Thanks, got two new class 10 cards yesterday and will try one with the beta and one with the LTS and see if either of them work this morning...
 
Old 05-01-2016, 03:58 AM   #12
Slowbey
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Got the Beta version working on one of the new SD cards, but the LTS version freezes on start up in the RasPi, with just a red "freezing" notice on the opening screen.
Will check the checksum on the download and if this is OK, will log a bug with the Ubuntu Mate folks.
Thanks for all the suggestions and help
David
 
  


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