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Questions tagged [ramdisk]

A RAM disk or RAM drive is a block of RAM (primary storage or volatile memory) that a computer's software is treating as if the memory were a disk drive (secondary storage).

A RAM disk or RAM drive is a block of RAM (primary storage or volatile memory) that a computer's software is treating as if the memory were a disk drive (secondary storage).

Because the storage is in RAM, it is volatile memory, which means it will be lost in the event of power loss, whether intentional (computer reboot or shutdown) or accidental (power failure). This is sometimes desirable: for example, when working with a decrypted copy of an encrypted file, or for storing a web cache (doing this on a RAM disk can also improve the speed of loading pages).

Source: wikipedia

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How do you create a linux (RHEL) bootdisk that runs busybox in a ramdisk (initrd)?

I've been trying to create a bootdisk (something like a live-cd) which loads into memory-only without mounting the disk. My steps are listed below, but when I boot using the cd, I get: Kernel Panic - not syncing: VFS: unable to mount root fs on…
JeffG
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What could be a good configuration for a testing machine?

In Zentyal we use virtualization (ANSTE) to perform automatic tests that require scenarios with several machines interacting in one or several networks. Currently we have a multicore Xeon machine with 16GB of RAM that we use to create ramdisks where…
Jaime Soriano
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freeze on "Loading initial ramdisk" debian 9

I have a functional debian 9 (kernel 4.9.0-19-amd64) on an old pc, I made an image of this debian with clonezilla and I put it on a newer pc... I know it's bad ^^ My concern is that when I boot directly on my debian I freeze on this message "Loading…
ArnOCP
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Creating a ramdisk with lvmvdo persistent across reboot?

I am trying to create a persistent ramdisk with lvmvdo with the below unit file but it does not seem to work.I have not added the --type vdo option to the lvcreate command yet ( this is for RHEL9 ) [mukesh@server1 ~]$ sudo cat…
munish
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Why apache2 mod_cache_disk cant store files in ramdisk?

I use Apache2 mod_cache_disk with symlink to my ramdisk: /tmp/ramdisk/mod_cache_disk but I cant get it to work :( It only works when path leads to real directory. How can I fix this problem ?
Macsurf
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Split initrd into smaller files

I would like to know if it's possible to have a split initrd implementation. Our reason for doing this, is the fact that our Fedora based application uses a stripped version of Fedora underneath with an initrd file which has become so large…
jbbletterman
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Will any running process be killed if I free the swap memory from my Ubuntu server?

The question (title of this question) came into my thought for the below reason. If anyone gives a solution of that reason then I don't need to free the swap memory. The Reason: After installation of Jenkins it is running well. But using some…
Shamim
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Script errors when run by launchd at startup, but not when run in Terminal

I'm attempting to create a RAM disk that loads the previous contents when the system starts up, and every six hours writes the contents to a disk image. Currently, when you run the script from the terminal ("sudo bash LogToRAM.sh") everything works…
Mechcozmo
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htdocs in RAM disk?

I was wondering the other day why wouldn't one place all the htdocs related files in a RAM disk. It seems to me, that this would greatly improve the time it takes for the disk to lookup and read files, greatly improving performance - specially for…
Alix Axel
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