Different size of partion between reiser4 and reiserFS 3.6

Different size of partion between reiser4 and reiserFS 3.6

[luc]

Hi,

	i want to try use reiser4 and i discover this :

I have 80Gb Western Digital HDD. When i created one partition (full 
disk)

mkfs.reiserfs -f /dev/sda1

then obtain this 

reiserfs 3.6
[root@Merlin luc]# df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1             78145768     32840  78112928   1% /mnt/te

when i did 

mkfs.reiser4 -f /dev/sda1

reiser4
[root@Merlin luc]# df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1             74256016      2544  74253472   1% /mnt/te



I use patch from ftp.namesys.com for kernel 2.6.12 and 
libreiser4progs-1.0_4-1.0.4-1mdk , reiser4progs-1.0.4-1mdk. Is here 
anyone who is able to explain me why the size of partion sda1 is 
different ???
-- 
luc
Linux 2.6.12-12mdk-i686-up-4GB Intel(R) Pentium(R) M processor 2.00GHz

Re: Different size of partion between reiser4 and reiserFS 3.6

[Clemens Eisserer]

This is because reiser uses 5% of disk space for internal use - which
is no problem since reiser saves that 5% easily since it stores files
much more efficient.

lg Clemens

2005/9/30, luc <xxlucas@seznam.cz>:
> Hi,
>
>         i want to try use reiser4 and i discover this :
>
> I have 80Gb Western Digital HDD. When i created one partition (full
> disk)
>
> mkfs.reiserfs -f /dev/sda1
>
> then obtain this
>
> reiserfs 3.6
> [root@Merlin luc]# df -k
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda1             78145768     32840  78112928   1% /mnt/te
>
> when i did
>
> mkfs.reiser4 -f /dev/sda1
>
> reiser4
> [root@Merlin luc]# df -k
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda1             74256016      2544  74253472   1% /mnt/te
>
>
>
> I use patch from ftp.namesys.com for kernel 2.6.12 and
> libreiser4progs-1.0_4-1.0.4-1mdk , reiser4progs-1.0.4-1mdk. Is here
> anyone who is able to explain me why the size of partion sda1 is
> different ???
> --
> luc
> Linux 2.6.12-12mdk-i686-up-4GB Intel(R) Pentium(R) M processor 2.00GHz
>

Re: Different size of partion between reiser4 and reiserFS 3.6

[Vladimir V. Saveliev]

Hello

luc wrote:
> Hi,
> 
> 	i want to try use reiser4 and i discover this :
> 
> I have 80Gb Western Digital HDD. When i created one partition (full 
> disk)
> 
> mkfs.reiserfs -f /dev/sda1
> 
> then obtain this 
> 
> reiserfs 3.6
> [root@Merlin luc]# df -k
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda1             78145768     32840  78112928   1% /mnt/te
> 

                        ^^^^^^^

> when i did 
> 
> mkfs.reiser4 -f /dev/sda1
> 
> reiser4
> [root@Merlin luc]# df -k
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/sda1             74256016      2544  74253472   1% /mnt/te
> 
                        ^^^^^^^

reiser4 subtracted amount of reserved space. Probably it should have not done that.

> 
> 
> I use patch from ftp.namesys.com for kernel 2.6.12 and 
> libreiser4progs-1.0_4-1.0.4-1mdk , reiser4progs-1.0.4-1mdk. Is here 
> anyone who is able to explain me why the size of partion sda1 is 
> different ???

Re: Different size of partion between reiser4 and reiserFS 3.6

[David Masover]

Vladimir V. Saveliev wrote:
> Hello

> reiser4 subtracted amount of reserved space. Probably it should have not done that.

Yes, it should.  Otherwise, I'd start getting out-of-space errors when
I've still got almost 20 gigs left.

If Reiser3 reserves anything, it should also subtract that.

If users really want to see how much space is available for
repartitioning, they should be using some form of fdisk anyway.

Re: Different size of partion between reiser4 and reiserFS 3.6

[Hans Reiser]

Vladimir V. Saveliev wrote:

>Hello
>
>luc wrote:
>  
>
>>Hi,
>>
>>	i want to try use reiser4 and i discover this :
>>
>>I have 80Gb Western Digital HDD. When i created one partition (full 
>>disk)
>>
>>mkfs.reiserfs -f /dev/sda1
>>
>>then obtain this 
>>
>>reiserfs 3.6
>>[root@Merlin luc]# df -k
>>Filesystem           1K-blocks      Used Available Use% Mounted on
>>/dev/sda1             78145768     32840  78112928   1% /mnt/te
>>
>>    
>>
>
>                        ^^^^^^^
>
>  
>
>>when i did 
>>
>>mkfs.reiser4 -f /dev/sda1
>>
>>reiser4
>>[root@Merlin luc]# df -k
>>Filesystem           1K-blocks      Used Available Use% Mounted on
>>/dev/sda1             74256016      2544  74253472   1% /mnt/te
>>
>>    
>>
>                        ^^^^^^^
>
>reiser4 subtracted amount of reserved space. Probably it should have not done that.
>
>  
>
>>I use patch from ftp.namesys.com for kernel 2.6.12 and 
>>libreiser4progs-1.0_4-1.0.4-1mdk , reiser4progs-1.0.4-1mdk. Is here 
>>anyone who is able to explain me why the size of partion sda1 is 
>>different ???
>>    
>>
>
>
>
>  
>
No, it is right as it is.  df tells users what they get to use.