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| author |   Nitin A Kamble <nitin.a.kamble@intel.com> | 2014-07-29 11:34:45 -0700 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-08-02 09:21:14 +0100 |
| commit | b0ac481dda99d8f4be8015964fcb2cb01afce08c (patch) | |
| tree | c137548c368478322bfa5f539bad9c2e5530fdb2 /meta/classes/bootimg.bbclass | |
| parent | d4b350fcdedf29692673e09a0c1850cdbbe29739 (diff) | |
| download | openembedded-core-contrib-b0ac481dda99d8f4be8015964fcb2cb01afce08c.tar.gz | |
INITRD var: make it a list of filesystem images
The initrd image used by the Linux kernel is list of file system images
concatenated together and presented as a single initrd file at boot time.
So far the initrd is a single filesystem image. But in cases like to support
early microcode loading, the initrd image need to have multiple filesystem
images concatenated together.
This commit is extending the INITRD variable from a single filesystem image
to a list of filesystem images to satisfy the need mentioned above.
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/classes/bootimg.bbclass')
| -rw-r--r-- | meta/classes/bootimg.bbclass | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/meta/classes/bootimg.bbclass b/meta/classes/bootimg.bbclass index d52aacea81..7b3ce65910 100644 --- a/meta/classes/bootimg.bbclass +++ b/meta/classes/bootimg.bbclass @@ -18,7 +18,7 @@ # an hdd) # External variables (also used by syslinux.bbclass) -# ${INITRD} - indicates a filesystem image to use as an initrd (optional) +# ${INITRD} - indicates a list of filesystem images to concatenate and use as an initrd (optional) # ${COMPRESSISO} - Transparent compress ISO, reduce size ~40% if set to 1 # ${NOISO} - skip building the ISO image if set to 1 # ${NOHDD} - skip building the HDD image if set to 1 @@ -67,9 +67,17 @@ populate() { # Install bzImage, initrd, and rootfs.img in DEST for all loaders to use. install -m 0644 ${STAGING_KERNEL_DIR}/bzImage ${DEST}/vmlinuz - - if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then - install -m 0644 ${INITRD} ${DEST}/initrd + + # initrd is made of concatenation of multiple filesystem images + if [ -n "${INITRD}" ]; then + rm -f ${DEST}/initrd + for fs in ${INITRD} + do + if [ -s "${fs}" ]; then + cat ${fs} >> ${DEST}/initrd + fi + done + chmod 0644 ${DEST}/initrd fi if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then @@ -80,10 +88,19 @@ populate() { build_iso() { # Only create an ISO if we have an INITRD and NOISO was not set - if [ -z "${INITRD}" ] || [ ! -s "${INITRD}" ] || [ "${NOISO}" = "1" ]; then + if [ -z "${INITRD}" ] || [ "${NOISO}" = "1" ]; then bbnote "ISO image will not be created." return fi + # ${INITRD} is a list of multiple filesystem images + for fs in ${INITRD} + do + if [ ! -s "${fs}" ]; then + bbnote "ISO image will not be created. ${fs} is invalid." + return + fi + done + populate ${ISODIR} |