From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Mon, 15 Jun 2015 16:51:25 +0200 Subject: [Buildroot] [PATCH 1/1] fs/romfs: add U-Boot image support In-Reply-To: References: <1433782196-17824-1-git-send-email-hoang.tran@vnoss.org> <20150614232937.6805b496@free-electrons.com> Message-ID: <20150615165125.43be39d5@free-electrons.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Dear Hoang Tran, On Mon, 15 Jun 2015 10:46:08 -0400, Hoang Tran wrote: > Sorry I did not response because of the problem of my email client. > But anyway I agree with Arnout. > My rootfs is in romfs and I intended to make a uRamdisk for quick testing. > But we could use cpio Ramdisk instead. a "uRamdisk" can be in cpio format. Basically the "u" is just a container for a ramdisk, and the ramdisk itself can use the cpio format, or ext2, or whatever filesystem you want. However, by using cpio, you leverage the initramfs mechanism of the kernel, which is much better than initrd in terms of memory consumption. See: https://www.kernel.org/doc/Documentation/filesystems/ramfs-rootfs-initramfs.txt Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com