2005-01-11 01:45:28

by Phy Prabab

Subject: RAM drive

Hello!

I need some assistance with creating a RAM disk of 8G
and mounting it. I am using 2.6.10 with this
proceedure:

(ramdisk support enabled)
dd bs=512 if=/dev/zero of=/dev/ram0 count=16384000
mkfs.ext2 -m0 /dev/ram0 8192000
mount -t ext2 /dev/ram0 /ramdisk0
mount: wrong fs type, bad option, bad superblock on
/dev/ram0,
or too many mounted file systems

I am not sure what the issue is. It worked on the
2.4.x series.

Any help if greatly appreciated!

TIA!
Phy



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2005-01-11 07:39:14

by Miquel van Smoorenburg

Subject: Re: RAM drive

In article <[email protected]>,
Phy Prabab <[email protected]> wrote:
>I need some assistance with creating a RAM disk of 8G
>and mounting it. I am using 2.6.10 with this
>proceedure:
>
>(ramdisk support enabled)
>dd bs=512 if=/dev/zero of=/dev/ram0 count=16384000
>mkfs.ext2 -m0 /dev/ram0 8192000
>mount -t ext2 /dev/ram0 /ramdisk0
>mount: wrong fs type, bad option, bad superblock on
>/dev/ram0,
> or too many mounted file systems
>
>I am not sure what the issue is. It worked on the
>2.4.x series.

I seem to remember that you must explicitly set the blocksize
to 1024 or 4096 when creating the filesystem. Eg mkfs.ext2 -b1024
or mkfs.ext2 -b4096 (don't remember which one exactly).

But with 2.6, why not use tmpfs ? Mount -t tmpfs -o size=8192000000 /ramdisk0

Mike.