| 1 | #!/bin/sh |
| 2 | |
| 3 | msg() { |
| 4 | echo "==>" $@ |
| 5 | } |
| 6 | |
| 7 | die() { |
| 8 | echo $@ |
| 9 | exit 1 |
| 10 | } |
| 11 | |
| 12 | unapk() { |
| 13 | local dest="$1" |
| 14 | shift |
| 15 | while [ $# -gt 0 ]; do |
| 16 | tar -C "$dest" -zxf "$1" |
| 17 | shift |
| 18 | done |
| 19 | rm -f "$dest/.PKGINFO" |
| 20 | } |
| 21 | |
| 22 | |
| 23 | APKS=../aports/core/*/ |
| 24 | |
| 25 | image=$PWD/image |
| 26 | dest=$PWD/test.gz |
| 27 | init=init |
| 28 | |
| 29 | |
| 30 | kernel=$1 |
| 31 | # if no kernel specified, then guess... |
| 32 | if [ -z "$kernel" ]; then |
| 33 | kernel=$(ls /lib/modules 2>/dev/null | tail -n 1) |
| 34 | fi |
| 35 | |
| 36 | if [ ! -d /lib/modules/$kernel ]; then |
| 37 | die "modules dir /lib/modules/$kernel was not found" |
| 38 | fi |
| 39 | msg "mkinitram Using kernel $kernel" |
| 40 | |
| 41 | # create empty image dir |
| 42 | |
| 43 | rm -rf "$image" |
| 44 | mkdir -p "$image/dev" "$image/etc/rcS.d" |
| 45 | |
| 46 | # unpack busybox and deps |
| 47 | unapk $image $APKS/uclibc-[0-9]*.apk \ |
| 48 | $APKS/busybox-[0-9]*.apk \ |
| 49 | $APKS/alpine-baselayout-[0-9]*.apk \ |
| 50 | $APKS/apk-tools-[0-9]*.apk |
| 51 | |
| 52 | ln -sf /bin/busybox $image/init |
| 53 | |
| 54 | # create misc devs and enable boot scripts |
| 55 | mknod $image/dev/null c 2 2 |
| 56 | ln -s ../init.d/mdev $image/etc/rcS.d/S10mdev |
| 57 | ln -s ../init.d/hwdrivers $image/etc/rcS.d/S30hwdrivers |
| 58 | ln -s ../init.d/modutils $image/etc/rcS.d/S40modutils |
| 59 | ln -s ../init.d/modloop $image/etc/rcS.d/S50modloop |
| 60 | ln -s ../init.d/hwdrivers $image/etc/rcS.d/S60hwdrivers |
| 61 | |
| 62 | mkdir $image/.modloop |
| 63 | |
| 64 | # load those extra drivers |
| 65 | for i in ide-cd usb-storage ide-disk loop; do |
| 66 | echo $i >> $image/etc/modules |
| 67 | done |
| 68 | |
| 69 | |
| 70 | # copy kernel modules |
| 71 | kmods=$image/lib/modules/$kernel |
| 72 | mkdir -p $kmods/kernel/drivers $kmods/kernel/fs |
| 73 | |
| 74 | for i in acpi ata block ide scsi cdrom usb message hid; do |
| 75 | cp -LpR /lib/modules/$kernel/kernel/drivers/$i $kmods/kernel/drivers/ |
| 76 | done |
| 77 | |
| 78 | for i in isofs vfat nls ext2 cramfs '*.ko'; do |
| 79 | cp -LpR /lib/modules/$kernel/kernel/fs/$i $kmods/kernel/fs/ |
| 80 | done |
| 81 | cp -LpR /lib/modules/$kernel/kernel/lib $kmods/kernel/ |
| 82 | |
| 83 | depmod $kernel -b $image |
| 84 | |
| 85 | |
| 86 | # generate the image |
| 87 | cd $image |
| 88 | find . | cpio -o -H newc | gzip -9 > $dest |