![]() ![]() In my systems (Debian, Kubuntu, Raspbian, OpenWRT) I use /mnt/ and I have never had any issues. In general I would avoid using this location though. They may look like /media// so I guess /media/RAMDisk is not going to collide with anything. It is the growth of Ubuntu size what takes more disk space in the newer version. Only if you are short on RAM then RAM disks could be partially and temporarily moved to swap which resides on a permanent disk. for external USB drives (I believe udisks2 is responsible). RAM disks reside in RAM, not on permanent disk. The system-wide one should be on /dev/shm.Īlso note /media/ is used by Ubuntu to create mountpoints e.g. It is typically created by: mknod -m 660 /dev/ram b 1 1 chown root:disk /dev/. mount unit.īut if you use systemd then you should already have a personal tmpfs mounted on /run/user/. The ram device is a block device to access the ram disk in raw mode. Arch uses a tmpfs /run directory, with /var/run and /var/lock simply existing as symlinks for compatibility. I'm not very familiar with systemd, so I can't tell you how (if) you can do it with. Some directories where tmpfs(5) is commonly used are /tmp, /var/lock and /var/run.Do not use it on /var/tmp, because that directory is meant for temporary files that are preserved across reboots. This site makes me believe you can run a systemd unit when a given user logs in for the first time and terminate it as soon as the last session for the user is closed. Investigate user and noauto options (see man 5 fstab) and maybe you would like to use them and invoke mount /media/RAMDisk on demand only. Since you need sudo anyway, it will be better to use /etc/rc.local which is run once when OS starts.īut the even better way may be to add the following line to your /etc/fstab: tmpfs /media/RAMDisk tmpfs defaults,nosuid,nodev,size=2048M 0 0 bashrc is not a good idea because this file may be sourced multiple times during a single session. ![]() Now I can boot my machine and make a file system on it, mount it and use it exactly like a block device. In rare cases, when RAM is scarce, RAMDisk will utilize the swap partition to store new files. Ramdisks are shared with all users and use a minimal amount of RAM needed to store your files. For example: kernel /vmlinuz-2.6.32.24 ro rootLABEL/ rhgb quiet ramdisksize10485760. With RAMDisk you can use your RAM as a folder, maximizing speed and disk longevity. You need to mount RAMDisk after (or at) every boot somehow. You can specify the size of the ram disks you create via the kernel boot parameter ramdisksize. On the other hand the mkdir command created a directory inside the filesystem of /dev/sda1 and this filesystem is mounted after every reboot so the directory itself survives, but as a part of /dev/sda1 filesystem. This is because the effect of your mount command is not permanent, it doesn't survive reboot. Df /media/RAMDisk, when it refers to /dev/sda1, tells you the directory at the moment belongs to the filesystem on /dev/sda1 which is mounted on /.
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