how to create 1 1g ram drive

[Donny Jekels]

Does anyone know the procedure to setup a 1GB ram drive.

all the ram block devices that comes with the system is only 15MB

redhat linux.

[Ivan Ferreira]

When you compile the kernel, you define the maximum size for a ram disk. I don't know the maximum size that can be increased while reconfiguring the kernel.

[Donny Jekels]

for those who might need it one day

dd if=/dev/zero of=onegigram bs=1k count=102400
mke2fs -i 1024 -b 1024 -m 5 -F -v onegigram
mount onegigram /mnt/ramdisk/ -t ext2 -o loop

enjoy

[Vitaly Karasik_1]

AFAIK, this won't create ramdisk. you should increaze ramdisk size using kernel boot parameter and "dd" to /dev/ram, not just regular file.
See http://fxr.watson.org/fxr/source/Documentation/ramdisk.txt?v=linux-2.6.9 for example.

[Ivan Ferreira]

That is not a file system on memory, that is a file system on a disk file.

[Mike Stroyan]

The tmpfs filesystem is effectively a RAM disk as long as the system has plenty of RAM. It will page out to swap if memory space starts to get tight. You can use the 'size' mount option to limit its maximum size.

sudo mkdir /mnt/ramdisk
sudo mount -t tmpfs -o size=1g tmpfs /mnt/ramdisk

[Andrew Bruce]

Hey, great idea!

You could create a 1GB RAM disk and set it up as swap. That way, your swap will run really fast!!

Just kidding! :-D

Regards,

Andy Bruce

ps No points for me please (unless you count entertainment value, then again, that'd probably be negative points... ;-)