Ubuntu MS SQL Server RESTORE fails beacuse 'LOG_BACKUP' is full
It sounds like the transaction log needs to grow during the upgrade portion of the restore from 2008 to vNext, but is unable to. Here are a few things to try:


Back up the log on the source database
Enable autogrowth on the source database log, if not already enabled
Make sure the autogrowth amount is set to a size that is smaller than the amount of free space on the target volume
Size the log on the source database so that it has some free space and won't have to autogrow during the restore
Take a fresh full backup and retry the restore to the target linux instance