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Old 01-08-2004, 10:43 PM   #1
snatale1
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Can only partition 76GB of a 80GB drive!


I'm not new to partitioning although a little new to partitioning w/linux. (linux user 8 mo.) I know that you never get the WHOLE harddrive but I'm only able to partition 76GB out of 80GB HDD. isn't 4GB a little much to loose? if so please help
 
Old 01-08-2004, 11:14 PM   #2
itsme86
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I have an 80GB drive in my Windows XP machine. Only 74.5GB total size (NTFS), so I'd say 76GB is pretty good
 
Old 01-08-2004, 11:52 PM   #3
e1000
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my dad has 40 gigabyte hard drive with only 37 gigs avaliable, and my 10 gig hard drive gave me only 9.4 gigs, and I had a 64 meg flash drive that only let me use 62 megs.

mabee its the file system mabee its just cheep hardware companys, either way most people just deal with it.

also I have heard something about "reserved" space only usable by root that isnt reported by the "df" command. (somebody else tell me that im not crazy)
 
Old 01-09-2004, 01:12 AM   #4
snatale1
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Ya, I guess it's not that bad then. I just could have sworn that I had alot more the last go around. oh well thanks for replying.
 
Old 01-09-2004, 02:37 AM   #5
PbO
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Part of the problem is that Hard Disk manufacturers use a different sized gigabyte, which was created for marketing purposes. A real gigabyte is 1024*1024KB, whereas a hard disk gigabyte is 1000000KB.

80 000 000 "Hard disk" KB /1024/1024 = 76 real GB, so you got the whole disk.
 
Old 01-09-2004, 04:52 AM   #6
Kahless
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Most hard drives do have "reserverd space"... but it is NOT acessable by the user, root or otherwise, ever.

What happens is this. All hard drives have weak or bad sectors. The onboard controller keeps track of sectors that are known to be bad.. and has a pool of extra sectors that are out of circulation from the factory. When it detects a bad sector, it automatically marks that sectors as bad so your computer doesnt use it, and puts a "spare" into use to replace it. This way, drives can be made cheaper, because they have a slight tolerance to being junk. Quite alot of sectors can go bad before you will actually notice problems with the drive. This is all done at a hardware level, on the actual hard drive controller... so the rest of your system/os has nothing to do with it. Unfortunatly, its not a fool proof system.. it usually works well enough with fairly healthy drives, but if its junk, its still junk.

I honestly dont know if some drives may actually go as far as to "shrink" beond their normal capacity, but I guess its possible. Most disk sizes are more of close guesses than exact estimates, because the manufacture never knows how many bad sectors a drive will have before its in a machine and running. Ive seen drives (once in awhile) post as larger than their real capacity because of this extra room... but usually they are a couple gigs smaller.


In a nutshell.... as long as your system is running properly, dont worry about it
 
Old 01-09-2004, 12:52 PM   #7
e1000
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Quote:
Originally posted by Kahless
I honestly dont know if some drives may actually go as far as to "shrink" beond their normal capacity, but I guess its possible.
heck ya its possable, I got this free 800meg hard drive from a freind, well realistacly it only said it had 780megs, and when instlling linux I learned that the first 50 or so megs were so heavily corrupted that they were unusable. so I just cut them out in partitioning and now i have a 730 meg drive with vector linux on it.
 
  


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