Hello, I've been working on trying to build a really tiny SELinux enabled version of fedora and I am getting stuck with something things in nash. I created a file called rootfs.img using the following commands: dd if=/dev/zero of=rootfs.img count=1 bs=64MB mke2fs -j -F -i 1024 rootfs.img I then mounted it as a loopback fs and proceeded to copy the appropriate filesystem structure and what I need to get the system running with busybox into it. I ran into a problem when I tried to use this from an initrd. I first tried to losetup the file onto /dev/loop0 but kept getting loop: can't get info on device /dev/loop0: No such device or address. I thought it was because I was missing the loop device so I created it with mknod /dev/loop0 b 7 0 (as it is on my actual fedora box) but this didn't help. The next thing I tried was to not bother with this and just use the -o loop option to mount but this fails with the error "mount: error mounting /rootfs.img on /sysroot as ext3: Block device required" I started by unpacking the initrd that is for the kernel that I am currently running so at some point it worked. I have pasted the modified init script that I am using in hopes that someone can help me figure out what I am doing wrong. Dave #!/bin/nash mount -t proc /proc /proc setquiet echo Mounting proc filesystem echo Mounting sysfs filesystem mount -t sysfs /sys /sys echo Creating /dev mount -o mode=0755 -t tmpfs /dev /dev mkdir /dev/pts mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts mkdir /dev/shm mkdir /dev/mapper echo Creating initial device nodes mknod /dev/null c 1 3 mknod /dev/zero c 1 5 mknod /dev/systty c 4 0 mknod /dev/tty c 5 0 mknod /dev/console c 5 1 mknod /dev/ptmx c 5 2 mknod /dev/tty0 c 4 0 mknod /dev/tty1 c 4 1 mknod /dev/tty2 c 4 2 mknod /dev/tty3 c 4 3 mknod /dev/tty4 c 4 4 mknod /dev/tty5 c 4 5 mknod /dev/tty6 c 4 6 mknod /dev/tty7 c 4 7 mknod /dev/tty8 c 4 8 mknod /dev/tty9 c 4 9 mknod /dev/tty10 c 4 10 mknod /dev/tty11 c 4 11 mknod /dev/tty12 c 4 12 mknod /dev/ttyS0 c 4 64 mknod /dev/ttyS1 c 4 65 mknod /dev/ttyS2 c 4 66 mknod /dev/ttyS3 c 4 67 mknod /dev/loop0 b 7 0 echo Setting up hotplug. hotplug echo Creating block device nodes. mkblkdevs echo "Loading ehci-hcd module" modprobe -q ehci-hcd echo "Loading ohci-hcd module" modprobe -q ohci-hcd echo "Loading uhci-hcd module" modprobe -q uhci-hcd mount -t usbfs /proc/bus/usb /proc/bus/usb echo "Loading loop module" modprobe -q loop echo "Loading ext3 module" modprobe -q ext3 echo "Loading scsi_mod module" modprobe -q scsi_mod echo "Loading sd_mod module" modprobe -q sd_mod echo "Loading scsi_transport_spi module" modprobe -q scsi_transport_spi echo "Loading mptbase module" modprobe -q mptbase echo "Loading mptscsih module" modprobe -q mptscsih echo "Loading mptspi module" modprobe -q mptspi modprobe scsi_wait_scan rmmod scsi_wait_scan mkblkdevs resume /dev/sda2 echo "Creating root device" mkrootdev -t ext3 -o loop,ro /rootfs.img echo "Mounting root filesystem" mount -t ext3 /sysroot echo Setting up other filesystems. setuproot echo Switching to new root and running init. switchroot echo Booting has failed. sleep -1 -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
