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i started installing ubuntu and took out windows 10 completely during the installation.. but after the installation, when i checked my disk partitions 927gb on linux filesystem 3 gb on linux swap 512 mb on efi

but my hard disk size is 1tb (1024gb so now rest 94 gb is missing can anyone help me out. i tried if the windows 10 is still existing on the disk, but i didnt get any method and while booting the system i get a message on the top left corner /dev/sda2: clean,223062/60760064 files, 5079494/243030464 blocks ... so does this mean.

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There is an explanation why space is missing. It is all about calculations (Apparent Vs. Actual). Drives are marketed in terms of decimal. So, 1 TB is in decimal, i.e. 1,000,000,000,000B while OS shows memory in terms of binary. Therefore, 1 TB is actually 931.32 GB (1,000,000,000,000/230). I personally use a 1 TB HDD and a total space of 931 GB is justified. So, the space isn't missing but the awareness of the facts.

Kulfy
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  • This is a good explanation - there should be a canonical answer somewhere... – Charles Green Dec 20 '18 at 16:35
  • @CharlesGreen There isn't a Canonical answer (if there's I am not aware of it). Actually this isn't specific to Ubuntu. By OS, I mean every OS including Unix, Windows and Unix like. – Kulfy Dec 20 '18 at 16:39
  • Ayuh - but it pops up often... – Charles Green Dec 20 '18 at 16:40
  • @CharlesGreen This game of Apparent Vs. Actual is going on from very long. There's even a 7% theory which says you get 7% less memory than the said memory which I believe is not legit since on one hand we are measuring in decimal and on the other hand in binary. – Kulfy Dec 20 '18 at 16:42
  • Forgot - sorry! – Charles Green Dec 20 '18 at 16:45