From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Wed, 27 Apr 2011 23:13:56 +0200 Subject: [Buildroot] Strange behaviour with cramfs In-Reply-To: <4DA2B71A.3090407@michaelburghart.de> (Michael Burghart's message of "Mon, 11 Apr 2011 10:08:58 +0200") References: <4DA2B71A.3090407@michaelburghart.de> Message-ID: <87zknbwg6j.fsf@macbook.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net >>>>> "Michael" == Michael Burghart writes: Michael> Hi, Michael> as I need to be able to replace the rootfs regularly I decided Michael> to build it as a cramfs (if there is a better option, please Michael> let me know). I would strongly suggest you had a look at squashfs instead. It is conceptually the same as cramfs, but with better compression and without some of the limitations of cramfs. It's more than 5 years ago since I last used cramfs, but it should work as well though. Michael> Unfortunately it does not work. The cramfs gets loaded and the kernel Michael> tells me: Michael> [ 2.883952] VFS: Mounted root (cramfs filesystem) readonly on device Michael> 1:0. Michael> which is ok. Michael> But then: Michael> can't open /dev/proc: No such file or directory /dev/proc? that sounds odd. Michael> and so on on end.. what did I forget to include?! Anybody experienced Michael> this before? Could you post your buildroot .config (or even better defconfig which you get by running make savedefconfig). Do you have the possibility for boot over nfs? If so, you could try the same build (use the tarball output format) though nfs. -- Bye, Peter Korsgaard