36b59c001c
There is a wide variety of tracing options through the various shell
scripts. Some use "set -eux", others explicity set xtrace and others
do nothing. There is a "-x" option to bin/disk-image-create but it
doesn't flow down to the many scripts it calls.
This adds a global integer variable set by disk-image-create
DIB_DEBUG_TRACE. All scripts have a stanza added to detect this and
turn on tracing. Any other tracing methods are rolled into this. So
the standard header is
---
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
---
Multiple -x options can be specified to dib-create-image, which
increases the value of DIB_DEBUG_TRACE. If script authors feel their
script should only trace at higher levels, they should modify the
"-gt" value. If they feel it should trace by default, they can modify
the default value also.
Changes to pachset 16 : scripts which currently trace themselves by
default have retained this behaviour with DIB_DEBUG_TRACE defaulting
to "1". This was done by running [1] on patch set 15. See the thread
beginning at [2]
dib-lint is also updated to look for the variable being matched.
[1] https://gist.github.com/ianw/71bbda9e6acc74ccd0fd
[2] http://lists.openstack.org/pipermail/openstack-dev/2014-November/051575.html
Change-Id: I6c5a962260741dcf6f89da9a33b96372a719b7b0
iso
Generates a bootable ISO image from the kernel/ramdisk generated by
the elements baremetal or ramdisk. It uses
isolinux to boot on BIOS machines and grub to boot on EFI machines.
This element has been tested on the following distro(s): * ubuntu * fedora
NOTE: For other distros, please make sure the
isolinux.bin file exists at
/usr/lib/syslinux/isolinux.bin.
baremetal element
When used with baremetal element, this generates a
bootable ISO image named <image-name>-boot.iso
booting the generated kernel and ramdisk. It also automatically appends
kernel command-line argument
'root=UUID=<uuid-of-the-root-partition>'. Any more kernel
command-line arguments required may be provided by specifying them in
DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS.
NOTE: It uses pre-built efiboot.img by default to work for UEFI machines. This is because of a bug in latest version of grub[1]. The user may choose to avoid using pre-built binary and build efiboot.img on their own machine by setting the environment variable DIB_UEFI_ISO_BUILD_EFIBOOT to 1 (this might work only on certain versions of grub). The current efiboot.img was generated by the method build_efiboot_img() in 100-build-iso on Ubuntu 13.10 with grub 2.00-19ubuntu2.1.
ramdisk element
When used with ramdisk element, this generates a
bootable ISO image named <image-name>.iso booting the
generated kernel and ramdisk. It also automatically appends kernel
command-line argument 'boot_method=vmedia' which is required for Ironic
drivers iscsi_ilo.
REFERENCES
[1] https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1378658