Is there such a thing as a persistent ram drive?

Posted by Linus on Super User See other posts from Super User or by Linus
Published on 2009-11-22T22:01:04Z Indexed on 2010/06/01 18:34 UTC
Read the original article Hit count: 221

Filed under:

linux

|

ramdisk

|

lamp

I have a laptop with a LAMP setup. The HDD is slow, which causes my unit tests to run slowly.

I was wondering whether I could mount the web root the mysql database on some kind of ramdisk.

From what I have read of ramdisks, they are non-persistent.

Is there anyway to create a ramdisk that writes changes to an area of the hdd when shutting down and re-mounts the ramdisk on bootup?

© Super User or respective owner

Related posts about linux

apt-get install and update fail

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've got a problem with apt-get update and apt-get install ... commands . every time update or installing fails and errors are : Get:1 http://dl.google.com stable Release.gpg [198B] Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US Get:2 http://dl… >>> More
kernel module compiling error

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
sh@ubuntu:/home/ccpp/helloworld$ make gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c hello-1.c:4:0: warning: "MODULE" redefined [enabled by default] <command-line>:0:0: note: this is… >>> More
Build-Essentials installation failing

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am having trouble accessing the several critical header files that show to be a part of the build process. The "Ubuntu Software Center" shows "Build Essentials" as installed: Next I did the following two commands, which did not improve the problem: ~$ sudo apt-get install build-essential [sudo]… >>> More
Updating Debian kernel

as seen on Super User - Search for 'Super User'
I'm trying to update my Debian machine to 2.6.32-46 (which is the new stable). However, after doing apt-get update my apt-cache search linux-image shows me: linux-headers-2.6.32-5-486 - Header files for Linux 2.6.32-5-486 linux-headers-2.6.32-5-686-bigmem - Header files for Linux 2.6.32-5-686-bigmem linux-headers-2… >>> More
Serial connection over a single USB cable (Windows to linux, or linux to linux)

as seen on Server Fault - Search for 'Server Fault'
I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux. These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would… >>> More

Related posts about ramdisk

set up pernament ramdisk in ubuntu to not using ram when is the ramdisk empty

as seen on Super User - Search for 'Super User'
Hi I've got 8GB RAM on my laptop running Ubuntu 12.04. I added following record to /etc/fstab tmpfs /media/ramdisk tmpfs defaults,noatime,mode=1777 0 0 What exactly it means? I have tested that I can save 4GB to ram disk at most. Why exactly 4GB? Where did the computer get this number from? And… >>> More
What's the best ramdisk for Windows?

as seen on Super User - Search for 'Super User'
Just Googling for "windows ramdisk" returns a lot of stuff; some free, some paid. Can someone recommend a good one? (I'm willing to pay, but only if it's really worth paying for.) Here's what I'm looking for: Works on XP and Vista Supports 64 bit and 32 bit I'd like it to support more than 2GB… >>> More
Increase ramdisk size on Ubuntu 9.10

as seen on Super User - Search for 'Super User'
How can I increase the ramdisk size on a Ubuntu 9.10 system? I have read one technique is to change the ramdisk_size parameter in the /boot/grub/menu.lst file. However, I am unable to find this file on my system. >>> More
Minecraft server Rkit ubuntu upstart [closed]

as seen on Server Fault - Search for 'Server Fault'
I have an Intel server running Ubuntu Server 12.04.1 I am working on moving my CraftBukkit Minecraft Server to the new platform. I read the upstart ubuntu cookbook and wrote a .conf file I have a minecraft user (named minecraft) and its home Directory is /home/minecraft it contains prwxrwxrwx 1 minecraft… >>> More
How to move linux executables to a ramdisk?

as seen on Server Fault - Search for 'Server Fault'
i've made a ramdisk this way: mkdir -p /media/ramdisk mount -t tmpfs -o size=512M tmpfs /media/ramdisk/ The reason for this is because i run a lot of node.js scripts and their execution time is very small, but i suspect that the time overhead is because it reloads the node.js executable from disk… >>> More