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7
votes
0answers
37 views

Reserve fixed RAM memory region as a block device ( with a given start physical address)

There have been a lot of questions about RAM Disks and I am aware of ramfs and tmpfs which allow the use of ram as a block device. However my interest is in using a fixed memory address range as a ...
2
votes
3answers
99 views

Why are there internet utilities in my initial ramdisk?

I have a fairly standard initial ramdisk created using mkinitcpio. I'm on Arch GNU/Linux. A while ago I got dropped to a rescue shell and poked around in the /bin of the ramdisk to see what was ...
2
votes
2answers
344 views

why is filesystem intensive script not faster on ram disk

I have a script which creates a lot of files and directories. The script does black box tests for a program which works with a lot of files and directories. The test count grew and the tests were ...
2
votes
2answers
195 views

du on ramdisk displays 3GB less than df

I understand there's often a some discrepancy between du and df but when I du my ramdisk it occupies 13G, whereas df shows it's using 16GB. This seems quite a big difference. Is this normal? ...
2
votes
1answer
130 views

Missing /dev/ram0 /dev/ram1 and /proc/kcore

I have been experimenting with etckeeper to store different snapshots of /etc in a git repo. I have cloned a working /etc in /etc-1 of a clean VPS and I have restored metadata with etckeeper, the I ...
1
vote
1answer
46 views

How to download original ramdisk file to the computer? [closed]

Linux embedded, is it possible to download original ramdisk file to the computer, to get source code? Access via SFTP. U-boot 1.2.0 Kernel command line: root=/dev/mtdblock3 ...
1
vote
1answer
501 views

Measurement of free ram through /proc/meminfo with ramdisk (initrd)

I am booting a disk image via PXE, it is a full system on an initrd ramdisk. I would like to measure the actual free memory of the system (not including buffers and file system caching). I was told ...
1
vote
0answers
9 views

Linux 3.x init ramdisk embedded in bzImage?

Is the initial ramdisk embedded in to the bzImage? How to load an rootfs.cpio as a ramdisk and switch the root?
1
vote
0answers
32 views

Display boot splash on ramdisk only system

I'm working on a kiosk system with the root file system loaded into RAM. One of the requirements is that the boot process output should be completely hidden from the user. I've already managed to set ...
0
votes
2answers
47 views

Ramdisks in OpenSuse 13.1

I've just installed OpenSuse 13.1, and noticed 5 tmpfs ramdisks in the partitioner, mapped to /dev/shm, /run, /sys/fs/cgroup, /var/lock and /var/run. I don't remember seeing these ramdisks in the ...
0
votes
0answers
20 views

How to boot on a ramdisk?

I'm working on a linux embedded for a custom board with a ARM9 processor. My kernel version is : 2.6.33 I'm trying to boot on a ramdisk, kernel correctly mount the file system but failed to execute ...
0
votes
1answer
142 views

How do I create a RAM disk on Linux Mint?

I am running a package that adds data to the end of 140–300 files each time through the process. I'm thinking of moving the process to a RAM disk, and using rsync to copy it back when done. My goal ...
0
votes
0answers
62 views

Unable to boot New solaris ramdisk image in SAM - Bad Magic number error

I am trying to create a new ramdisk for SAM with 1GB space from the provided "disk.s10hw2". Below are the following steps (following the thread in OTN: Booting problem with custom built solaris10 disk ...
0
votes
0answers
54 views

Creating a fixed-size post boot block device from ram

First off: /root# cat /proc/version Linux version 3.12.6 What I'm trying to do is create a block device (no filesystem) out of ram of a fixed (configurable) size (pre-allocated, not ...
0
votes
0answers
109 views

Running vmdk in ramdisk

I created a FreeBSD VM running on VMWare ESX, with a SCSI Harddisk. I added another SCSI disk (new vmdk file) to it and it booted perfectly fine. I then created a ramdisk on the VMWare ESX Host, and ...