"msa" == MMTS System Administrator <sle@mmts.nsys.by> writes:
1 reason that the space is there is that if / fills up, the system can fail to boot. As long as some malicious user cannot prevent root from writing to the disk, you're still OK. However, there is another reason... The filesystem is structured such that there _must_ always be free space on the disk, to allow restructuring of inodes. Note that you've never had to defragment a linux partition. If the disk is full, files cannot be defragmented, inodes cannot be reallocated, and your kernel will panic. This is not good. Don't get rid of the super user space. 300 megs out of 6 gigs is little enough to pay. If your disks are that full, you need more disks, or delete some mp3s. ericb msa> Hello, Warrl! msa> The space is finished on "/dev/sdb1" partition, which is "/storage", but msa> not "/", thus I don`t need linux to reserve something there. msa> Is there another way? Or I should go Linux Kernel sources and patch them msa> myself? msa> P.S. I am logged not as root. msa> Thanks, msa> George. msa> On Mon, 27 Mar 2000, Warrl wrote:
On Mon, 27 Mar 2000, MMTS System Administrator wrote:
My disk is 6.2Gb, midnight commander shows 307Mb free other programs, such as df, smbserver, etc. reports 0 free space
But the very thing is, that the disk has REALLY 307 MEG FREE, and files go ok there.
How to make the system report normal freespace? (Some of programs, such as Netscape/Win on Workstations, fail to perform things, when seen Samba Server report 0 bytes free).
Linux normally reserves a bit of disk space - 300 meg out of 6 gig sounds about right - that can only be used by root.
The idea is that if you "run out" of disk space, you can go in as root and clean things up - and still have enough room to work with.
Now I note that you are tagged "MMTS System Administrator". This makes me think that perhaps you are routinely logging in as root. Which is a bad idea for many reasons, one of them being that you lose this recovery workspace. Another being that a clumsily typed rm -rf / is a lot less destructive when someone other than root does it... (Although, when done as root, it *will* fix your shortage of disk space... guaranteed...)
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