HorseChandelier
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Nah /dev/zero is for wimps. You need /dev/urandom…
Copying all the data elsewhere and re-partition is still the right answer…
You could possibly get away with copying the data out of the last partition, deleting the last 3 and extending the other one then copying the data back but, as others have said, you seem to have rather too many partitions.
ETA: there is no way to merge ntfs and ext4 partitions anyway - even without the intervening partitions that are present here. Copy, destroy extend is the only way.
All bikes are repairable, some are more repairable than others. It all depends on how scared you are of getting your hands dirty and how confident you are that you can think your way out of problems.
My point is that a bike can be really simple and, as such, anything should be possible.
Modern innovations usually mean a set of tools beyond the basic bike set but the specials are available (bottom brackets are a particular case in point - you use to be able to get away with ponty things and gentle hammering - despite there being tools designed for the job now it’s use our tool or forget it)
So I would avoid anything too new - get a rat bike from a scrappy and learn how it works whilst rebuilding it.
Planetary for me.
In the UK there is a split between England and Wales and Scotland. “southern” UK trespass is a civil offence. Scotland it is criminal.
So in southern UK trespassers will most definitely not be prosecuted (the railway and power plant property are, iirc, the two exceptions because they have by-laws) but may be sued for damages, in Scotland they can be prosecuted.
The products also have/had a lifetime guarantee - providing you could find a rep and they still made the product… Got a jug replaced after 40 years of hard service.
It’s also why the party model failed them - MLM for a product that never broke or wore out.
Newer tupperware was microwave safe.
Reps got a cut of party sales and if they made enough each month the could get other benefits as well (a company car, for example).