#26 [PATCH] [wiper.sh] Use /dev/root symlink for rootdev

[Anonymous]

I'm running gentoo unstable, I recently downloaded wiper-3.1 and discovered that rdev is gone from util-linux-2.18.
The attached patch adds a very simple check to the rootdev variable, so that the /dev/root symlink may be used *before* using rdev.
It should work well as long as /dev/root is a symlink pointing to the root device. A regular block file won't do, "-h" explicitly checks for a symlink.
I'm not using lvm, dmcrypt or other layers so my /dev/root simply points to /dev/sda5.
If /dev/root always points to the correct root device and is updated by the kernel itself, I guess we can be sure that using it is a safe assumption. A root device on the device-mapper layer would point to /dev/mapper/rootfs following this reasoning. I'm unsure if this is what happens, though.

[Anonymous]

Patch to add /dev/root check