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authorGerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>2011-06-18 18:38:58 -0300
committerGerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>2011-06-18 18:38:27 -0300
commit85d243ff5836fc17416c65dca8a9e8b4e9d915bc (patch)
tree78b3ec86fea064580c43966da866d46e31ab7007 /configs/releng/root-image/etc/archiso/functions
parent4a1bd4c7697bdc7aa89eca04009d868e4dd39cb4 (diff)
[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>
Diffstat (limited to 'configs/releng/root-image/etc/archiso/functions')
-rw-r--r--configs/releng/root-image/etc/archiso/functions20
1 files changed, 20 insertions, 0 deletions
diff --git a/configs/releng/root-image/etc/archiso/functions b/configs/releng/root-image/etc/archiso/functions
new file mode 100644
index 0000000..9fffdcb
--- /dev/null
+++ b/configs/releng/root-image/etc/archiso/functions
@@ -0,0 +1,20 @@
+# 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
+}