Re: Linux and superblocks

AFAIK, there's a difference between the 5% which is reserved by default
for the root user on an EXT2 filesystem and superblocks. Superblocks
contain some essential information which is needed to mount a
filesystem. There's a copy of them at least every 8192 blocks, on larger
filesystems every uhhhh 4*8192 blocks. I don't know of any option to
eliminate them.

Sander

Juha Saarinen wrote:
>
> Yes, it is.
>
> man mke2fs:
>
> -m reserved-blocks-percentage
> Specify the percentage of reserved blocks for the super-
> user. This value defaults to 5%.
>
> -- Juha
>
> %-> -----Original Message-----
> %-> From: Chris Conn [mailto:cconn@abacom.com]
> %-> Sent: Sunday, 26 March 2000 12:49 p.m.
> %-> To: squid-users@ircache.net
> %-> Subject: Linux and superblocks
> %->
> %->
> %-> Hello,
> %->
> %-> Is it possible to format a partition without attributing superblocks in
> %-> linux? This space (to my understanding) can only be used by the
> %-> superuser, and since squid runs as nobody this space is essentially
> %-> wasted. In the case you have multiple partitions, some obviously get
> %-> dedicated to cache data and superblocks would be unecessary.
> %->
> %-> Any advice would be appreciated.
> %->
> %-> Thanks,
> %->
> %-> Chris
> %->
> %->
> %->

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Received on Sun Mar 26 2000 - 08:27:50 MST