Hi Benjamin, On Wed, Jun 14, 2017 at 05:47:54PM +0200, Benjamin Drung wrote: > Package: initramfs-tools > Version: 0.130 > Severity: normal > Tags: patch > > Hi, > > The tmpfs boot mode allows one to operate a disk-less live system by > downloading a root tarball (that can be created with debootstrap) and > extracting it to a tmpfs root partition. > > The tmpfs boot mode is similar to the nfs boot mode, but it does not > rely on any external service (after booting). We use this boot mode for > our compute nodes. I have attached a patch to support this boot mode and > tested it with qemu and on real hardware.
Please take a look at the package live-boot (and the man page of the same name in live-boot-doc). Specifically, the parameter fetch=URL should satisfy your requirements and consume less resources. live-boot creates an overlay filesystem backed by a squashfs image, which means it likely uses much less RAM than copying root to tmpfs. (For my system, squashfs reduces the required memory to a third.) Regards, Peter
