From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <37E1F2FF.BAA72804@broadlink.com> Date: Fri, 17 Sep 1999 07:51:27 +0000 From: Scott Wood MIME-Version: 1.0 To: Wolfgang Denk CC: Dan Malek , linuxppc-embedded Subject: Re: Problems with initrd on linux-2.3.18 References: <199909171404.QAA25414@denx.local.net> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Wolfgang Denk wrote: > > Hi, > > I'm trying to get linux-2.3.18 running on a MPC850 system; should > this be working, or should I better stick with embedded-2.2.5? > > The main problem I'm strugging with is loading the initrd. > > My modified boot loader works, the kernel starts and finds all para- > meters and memory, it finds the compressed initrd image, uncompresses > it, but then it does not run /linuxrc, nor can it find /init or > /bin/sh, so it crashes with `Kernel panic: No init found'. I had the exact same problem with the 2.3.10 kernel a while back. It would uncompress the ramdisk ok, but wouldn't start any of /linuxrc, /sbin/init, /etc/init, /bin/sh. I tried hacking various things hoping to stumble on something that would just make it work, but ended up reverting back to 2.2.5. > > The problem seems to be in drivers/block/rd.c: the gunzip in > crd_load() returns ok, so crd_load() return 0 to rd_load_image(), > where we `goto successful_load'. There infile.f_op->release points to > initrd_release(), which is called: it releases the initrd, sets > initrd_start=0, and this causes init/main.c to think there is no > initrd. > > Any ideas what's going on here? Linux can't do much if it can't run init ;-) On a somewhat related sidenote, is there any work being done to access FLASH from within Linux, either as a file or a filesystem (or anything)? It would be *very* useful to read/store machine-specific configuration data IP address, etc) and/or update the kernel/initrd boot image remotely. I hear uC/Linux has a FLASHFS for certain Motorola ColdFire CPU boards. -- +---------------------+----------------------+ | Scott Wood | Systems Engineer | |=====================+======================| | BroadLink Communications | +--------------------------------------------+ ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/