[SOLVED] Ubuntu mate not booting after using eMMC Recovery Tool for XU4

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mdt
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[SOLVED] Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by mdt »

I performed the procedure to recover the eMMC card and got the android on my monitor; removed the eMMC card and flashed ubuntu-18.04.3-4.14-mate-odroid-xu4-20190929.img with Balena Etcher on the eMMC card.
Put the card on my XU4, powered up and waited for a long time; did not get image on the monitor and red and blue led remain solid.
As I got the android working, I presume both XU4 and eMMC card are OK.
What is going wrong here?
I would appreciate support to get ubuntu running.

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Re: Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by mdt »

I flashed the same ubuntu-18.04.3-4.14-mate-odroid-xu4-20190929.img with Balena Etcher on an sd card, powered up the XU4 and got Mate running, so again I presume XU4 is OK.
It looks like the eMMC card is not doing it's job.

Now I used Disk Genius to check what is on both, the sd card and the eMMC card.

The sd card has 2 partitions:
1) boot FAT16 128MB (hidden)
2) rootfs EXT4 14.7GB

The eMMC card has 4 partitions:
1) Primary EXT4 1GB
2) Primary EXT4 256MB
3) Removable Disk FAT32 100MB
4) Primary EXT4 27.7GB
Comparing to the partition table in Odroid Wiki the partition sizes and starting sectors are OK; the partition labels, however, do not match.

Is the naming a problem? So do I have to rename the partitions?

I would appreciate some help.

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Re: Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by odroid »

It seems that the eMMC still has the Android OS partitions.
How did you flash the OS image into the eMMC with Etcher?
Was there any verification error?
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mdt (Sun Sep 06, 2020 11:28 pm)

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Re: Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by mdt »

I did flash with Etcher, there were no verification errors.

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Re: Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by odroid »

Very weird.
Try fully formatting the eMMC module on your PC first. After that, there must be a single partition.
And flash the Ubuntu image with Etcher.
When you run Etcher, choose a disk instead of a partition for target media storage.

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Re: Ubuntu mate not booting after using eMMC Recovery Tool for XU4

Post by mdt »

I repeated the entire procedure to recover the eMMS card as mentioned in the Odroid Wiki.
This time, however, I used a USB Card Reader i.s.o. the card reader in my PC.
I had several blue screens when using this internal card reader so I decided to switch to an external USB card reader.
This time all went well.
Ubuntu Mate booted perfectly.
This issue is resolved, thank you for your patience and support.
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odroid (Mon Sep 07, 2020 10:49 am)

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