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64 gb datatraveler usb stick, shows 62 gb on 2 partitions different partitions

id flag

I'm not as knowledgeable as I'd like to be, and on top of that i now switched to ubunutu to get some wanky formatting results. Anyway, i have a 64 gb usb stick, that i did a fat32 format on first, to move some files from windows to ubuntu. After that i formatted it again, this time though i added a password on it (thought it a cool idea:), and i checked the box to erase previous format. Once the formatting was done though, to my surprise the gui show 2, 62 gig separated volumes, on top of eachother. The other one with "unknown contents", with the only difference between the two that the readable one is mapped as /dev/sdd1. And the other one is mapped as /dev/mapper/luks-(UUID). The UUID's are the same on both of them. My question being simple, wtf is going on here? the stick has 64 gig of space. Am i missing something on disk-processing in ubuntu? (I'm in the process of formatting the "unknown" partition, to see if it's legit unused diskspace, or some diskwriter bug). Any ideas or suggestion as to why this would happen are welcome, thank in advance!

nightooi avatar
id flag
i think i'm not explaining it well, the stick has now 2 partitions simultaneously, both with 62gig each, that would both add up too 124 gig of diskspace on a 64 gig stick.
oldfred avatar
cn flag
You created LVM or logical volumes. That is normally contained in a standard partition. So yes you have a partition that fully contains the LVM volume which is encrypted and then can only be seen if mounted using the passphrase your created. https://help.ubuntu.com/community/ManualFullSystemEncryption/ & https://wiki.ubuntu.com/Lvm
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