Aside from going 2-5 years between “upgrades”, what do I give up by jumping off LTS?

I’ve been using LTS versions of Ubuntu for several years (14.04 at first, now 16.04), and have never had a successful do-release-upgrade; I’ve understood this is because I run a lot of third-party software. I’ve done things this way because I prefer to keep the same interface over a period of time, instead of having…

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Using minimal ubuntu as type 1 Hypervisor, viz-a-viz oVirt?

Though i found “minimal Ubuntu”, but nowhere did i find the “Ubuntu Hypervisor” like oVirt, with just the essentials. What will it take to build a type-1 hypervisor, a lean-mean-fighting machine with GUI management features and all desired features for a top class hypervisor from “Minimal Ubuntu”? Has anyone done that before? (I guess many).…

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What if the blockchain saved space by trimming input txs on each transaction?

At each block there is a determined set of unspent transaction outputs. Each new transaction specifies the unspent outputs it’s going to spend in the format tx_id:output_index. tx_id is 32 bytes. If at any point in time an unspent output has tx_id = cb7f357d7034f93b89a227c2109182740f1798f5a006e9cd0930a380c06aca7e and no other unspent output has a tx_id with prefix cb7f35…

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How to fix this error: ‘The instance of entity type cannot be tracked…’

Here is full error: System.InvalidOperationException: “The instance of entity type ‘Book’ cannot be tracked because another instance with the key value ‘{BookId: 382234c3-721d-4f34-80e5-57657bbbbb32}’ is already being tracked. When attaching existing entities, ensure that only one entity instance with a given key value is attached.” It throws when I try to add new entity to my…

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