From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <000601bfb7c9$d40a0840$0201a8c0@home> From: "Jeff Millar" To: "Jim Lewis" , "Mike Flynn" Cc: References: <001101bfb74c$90881c60$5e621018@elcjn1.sdca.home.com> <3914446F.C653F97A@mvista.com> Subject: Re: RAM disk size Date: Sat, 6 May 2000 22:13:19 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: We had some trouble with ramdisk larger than 4096K when used as initial ramdisks. Don't remember if they have problems when just created, mounted and used. This occured with the Dan Malek kernels from late 1999, don't know if MontaVista has addressed this issue. The symptoms were that the creation went fine but caused mysterious failures when mounted during boot. jeff ----- Original Message ----- From: "Jim Lewis" To: "Mike Flynn" Cc: Sent: Saturday, May 06, 2000 12:12 PM Subject: Re: RAM disk size > > Hello Mike, > > The default max ramdisk size is 4096K. You can change this using the > ramdisk_size boot parameter. You will definitely need to change this default on > the target. > > On the host, another way to create a ramdisk image is to use the loopback > filesystem. This will allow you to avoid having to change the Ramdisk-size of > your development host. Take a look at the Loopback-Root-FS How-To. > > -Jim > > Mike Flynn wrote: > > > I need to flash an image larger than 4 megs to an Embedded Planet RPX CLLF > > (860T) board with 8 MB of flash. I'm having a problem making a RAM disk file > > image larger than 4 MB on a LinuxPPC host preceding the download to the > > target: > > > > mkfs -m 0 /dev/ram XXXX > > or > > mke2fs -c /dev/ram XXXX > > > > with XXXX anything more than 4000 returns the following message: > > > > "Filesystem larger than apparent filesystem size. > > Proceed anyway? (y,n)" > > > > Proceeding "anyway" seems to work until any activity that would put more > > than 4 MB in /dev/ram (mounted as /mnt) yields: > > > > "No space left on device" > > > > How do I get beyond this host limitation to use more of the available flash > > on the CLLF board? > > > > Thanks, > > Mike Flynn > > Enerdyne Technologies > > > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/