[ts-7000] Copy of SD Card mounts read-only upon boot

["eric.robishaw" <>]

I've got an SD card setup the way I want, make a copy of it to another SD card 
(same size):

dd -if=/dev/sdb of=/mnt/sdbackup.dd

put the new disk in, and reverse:

dd -if=/mnt/sdbackup.dd of=/dev/sdb


Start the duplicated SD card, get the busy prompt, type exit.
Then I get a bunch of errors "Read-only file system". It also takes about 5 
minutes to boot. 

mount reveals that only the tmpfs on /dev is mounted ro.

I've done it twice with the same results.
What am I doing wrong?

Thanks,
Eric



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