On Wed, Aug 26, 2009 at 02:49:08PM +0800, obvvbooo obvvbooo wrote:
> Thanks for reply. But still not got it clearly.
>
> To get the result of command:"grep ramdisk /etc/fstab", ramdisk need to be
> mounted first. How do I mount ramdisk? I'm using the GENERIC kernel, Do I
> need to change the config file or rebuild the kernel?
> I also tried command "rdconfig /dev/rd0a 2048", but it reported "/dev/rd0a:
> Device not configured", how to deal with this?
rd(4) only is useful for installers and the like, for regular ramisks,
use mfs. There's an example in fstab(5), also see mount_mfs98)
-Otto
>
> Thanks
>
> 2009/8/22 Robert <[email protected]>
>
> > On Fri, 21 Aug 2009 23:12:18 +0200
> > Iqigo Ortiz de Urbina <[email protected]> wrote:
> >
> > > On Fri, Aug 21, 2009 at 2:03 PM, obvvbooo obvvbooo
> > > <[email protected]>wrote:
> > >
> > > > Hi,
> > > >
> > > > Is there a way to use memory as a disk/partition? Such as mount it
> > > > to /mnt/mem or such things. I can't find information of this in the
> > > > man pages and after googled,
> > >
> > >
> > > Havent tried this before but you should be able to create your own
> > > ramdisks with rdconfig(8).
> > >
> > >
> > > > I found "rd" for OpenBSD, which seems similar with "md"
> > > > in FreeBSD. But still not useful. Anybody help?
> > > >
> > > > Thanks
> > > >
> > > >
> > > Just wondering, how come it is not useful? Is it because your fresh
> > > ramdisk is not immediately usable right after creating it?
> >
> > Wasn't this answered by the man page references?
> >
> > # grep ramdisk /etc/fstab
> > swap /ramdisk mfs rw,nodev,nosuid,-s=2200000 0 0
> >
> > don't want to reboot?
> > # mount /ramdisk
> >
> > don't want to have it on every boot? (for that there is no real reason,
> > because it wont use ram until one puts actual data in there.)
> > -> add the "noauto" option.
> >
> > - Robert
