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Cake day: June 27th, 2023

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  • They will have some kind of pressure relief valve, to let steam out and prevent an explosion. They only become dangerous if that valve isn’t working (assuming that whatever keeps the lid on is intact and still strong).

    Look for damage around the seal between the pot and the lid, and look for damage to the clamp or latch which holds the lid down against that seal.

    Then look at the valve. It’ll probably be a heavy object (such as a lump of metal) which sits on top of a hole of some sort, or it could possibly be something spring loaded. Either way, check that it moves freely.

    After that the only additional thing you could do is a pressure test, where you basically deliberately overpressurise it and see if it explodes, but if you had the means to do that safely then you wouldn’t be asking for advice here so I don’t recommend it.




















  • What they’re suggesting is to back up the whole disk, rather than any single partition. Anything you do to the partition to try and recover it has the potential to make a rescuable situation hopeless. If you have a copy of the exact state of every single bit on the drive, then you can try and fix it safe in the knowledge that you can always get back to exactly where you are now if you make it worse