Re: Specifying root device in /etc/fstab

[mlelstv%serpens.de@localhost (Michael van Elst)]

aniou%smutek.pl@localhost (Piotr Meyer) writes:

>In fstab(5)[1] I found something like:

>     To use ``NAME'' on a non-GPT disk, use:
>     NAME=sb2k5Root/a        /       ffs     rw,log           1 1
>     NAME=sb2k5Root/b        none    swap    sw,dp            0 0

That's a wedge construct. Currently the kernel will create wedges only
from GPT labels. You need a kernel built with the DKWEDGE_METHOD_BSDLABEL
option to get such names for disklabel partitions.

There is some compatibility code so that default labels (with empty
packname or a packname of 'fictitious') generate wedges named like
a partition, e.g. wd0a, wd0b, etc. The libutil code also falls back
to accept something like NAME=wd0a, NAME=wd0b, ... The fstab then
works with and without DKWEDGE_METHOD_BSDLABEL for easier updates.
But since the name includes the device name it doesn't help in this
case.

-- 
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."