Why ext filesystems don't fill entire device?
Fresh3 days ago
Mar 15, 20262271 viewsConfidence Score0%
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Problem
I've just noticed any of ext{2,3,4} filesystems i'm trying to create on 500G HDD don't use all available space (466G). I've also tried reiser3, xfs, jfs, btrfs and even vfat. All of them create fs of size 466G (as shown by df -h). However, ext* creates fs of 459G. Disabling reserved blocks increase…
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Fix for: Why ext filesystems don't fill entire device?
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There are two reasons this is true. First, for some reason or another OS writers still report free space in terms of a base 2 system, and hard drive manufacturers reports free space in terms of a base 10 system. For example, an OS writer will call 1…
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