Re: 2.2.1 mkfs.ext2 out of memory

Richard B. Johnson (root@chaos.analogic.com)
Thu, 18 Feb 1999 14:45:02 -0500 (EST)


On Thu, 18 Feb 1999, Jon P. deOng wrote:

> Hi,
> I'm running a pII 400 with 256Mb of ram with a vanilla 2.2.1 kernel
> Im trying to create a raid5 array with 4 9gig scsi seagate cheetah drives
> connected to the external adapter of an adaptec 2940uw controller. My os
> drive is also a 9gig scsi cheetah on the internal ultra scsi adapter. I
> have no scsi2 devices at all. I have verified proper termination and turned
> off the auto term in the adaptec bios.
> Now I have no problems with mkraid, mdadd, or mdrun. All of these raid tools
> report no errors. The problem comes when i try to format /dev/md0
> my syntax is
> mkfs.ext2 /dev/md0
> mkfs gets almost halfway through writing the inode tables and then i get
> this output
>
> Writing inode tabels: 1969/3254
> Out of Memory for mkfs.ext2
> Killed

Yep! First make a big swap partition or a big swap file. There is, roughly
4096 bytes of memory required for every megabyte of file-system space when
you execute mkfs.ext2. This depends upon the allocation-unit size, but
it's a reasonable rule-of-thumb.

Then boot into single-user mode with no network daemons running. Make
sure your swap partition is activated, then make the file-system. You
should be sucessful.

Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
Penguin : Linux version 2.2.1 on an i686 machine (400.59 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.
Wisdom : It's not a Y2K problem. It's a Y2Day problem.

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