ISO/configs/releng/root-image/etc/archiso/functions
Gerardo Exequiel Pozzi 85d243ff58 [archiso] Use dm-snapshot instead of aufs2 (A.K.A. "The Big Commit")
* Use device mapper + snapshot module, instead union layer filesystem.
  * A block-level approach vs vfs-level.
  * No more unofficial (Linux) things.
  * More memory is needed.
* Refactor mkarchiso.
* Refactor hooks/archiso.
* Fix install/archiso_pxe_nbd
  (due recent change in mkinitcpio-0.6.15 on checked_modules()/all_modules())
  [Thanks Dave for the improved workaround]
* New configs/releng to build official images.
  * Works with a Bash script instead of Makefile.
    (better control and easy to maintain)
* Remove configs/syslinux-iso.
* Remove archiso2dual script. Integrate functionality in configs/releng.
* New configs/baseline to build the most basic live medium or use as template.
* New README (draft). [Thanks Dieter for fixing english grammar]

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
2011-06-18 18:38:27 -03:00

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Bash

# vim: set ft=sh:
# kernel_cmdline <param> <default>
# Looks for a parameter on the kernel's boot-time command line.
#
# returns: 0 if param was found. Also prints its value if it was a K=V param.
# 1 if it was not. Also prints value passed as <default>
#
kernel_cmdline ()
{
for param in $(/bin/cat /proc/cmdline); do
case "${param}" in
$1=*) echo "${param##*=}"; return 0 ;;
$1) return 0 ;;
*) continue ;;
esac
done
[ -n "${2}" ] && echo "${2}"
return 1
}