diff options
Diffstat (limited to 'mkinitramfs')
| -rw-r--r-- | mkinitramfs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/mkinitramfs b/mkinitramfs new file mode 100644 index 00000000..c6275ddb --- /dev/null +++ b/mkinitramfs @@ -0,0 +1,55 @@ +#!/bin/sh + +# make sure we are being run in the right directory... +if [ -f mkinitramfs ] +then : +else + echo >&2 mkinitramfs must be run from the mdadm source directory. + exit 1 +fi +if [ -f /bin/busybox ] +then : good, it exists + case `file /bin/busybox` in + *statically* ) : good ;; + * ) echo >&2 mkinitramfs: /bin/busybox is not statically linked: cannot proceed. + exit 1 + esac +else + echo >&2 "mkinitramfs: /bin/busybox doesn't exist - please install it statically linked." + exit 1 +fi + +rm -rf initramfs +mkdir initramfs +mkdir initramfs/bin +make mdadm.static +cp mdadm.static initramfs/bin/mdadm +cp /bin/busybox initramfs/bin/busybox +ln initramfs/bin/busybox initramfs/bin/sh +cat <<- END > initramfs/init + #!/bin/sh + + echo 'Auto-assembling boot md array' + mkdir /proc + mount -t proc proc /proc + if [ -n "$rootuuid" ] + then arg=--uuid=$rootuuid + elif [ -n "$mdminor" ] + then arg=--super-minor=$mdminor + else arg=--super-minor=0 + fi + echo "Using $arg" + mdadm -Acpartitions $arg --auto=part /dev/mda + cd / + mount /dev/mda1 /root || mount /dev/mda /root + umount /proc + cd /root + exec chroot . /sbin/init < /dev/console > /dev/console 2>&1 +END +chmod +x initramfs/init + +(cd initramfs + find init bin | cpio -o -H newc | gzip --best +) > init.cpio.gz +rm -rf initramfs +ls -l init.cpio.gz |