and how you add that on the initramfs? i mean command sequence list
something like in this example?
http://wiki.gentoo.org/wiki/Custom_Initramfs#Creating_a_Separate_File
===
linux is free, but needed expertise to use this little beast
is a personal, time consuming, continuous accumulation of knowledge
and wasted time can not be rolled back no matter how much money you have
selling free software can not bring to you too much money,
but USING free software you can make a lot of money
like Google ... or IBM
your little help to free software development does not bring
to you any money but can help you use it more efficiently,
so you can make more money ... meanwhile, other users of
that little free software program, using your contribution
can make more money! nobody loses anything, all those who know
how to use a free software program, in continuous evolution, wins
registered linux user #352479
2014-12-08 1:26 GMT+00:00 Nicolas Sebrecht nicolas.s-...@laposte.net:
Hello,
I had to hack the initramfs to allow my system to boot on my BTRFS root
filesystem. Everything goes fine with BTRFS unless it is set with
multiple devices. In that case, and you might have a long
debugging/hacking time to understand the cryptic messages at boot and
fix it.
I aim this report to help other users as well as to find a long-term fix
to avoid manually rebuild the initramfs.
When using BTRFS with multiple devices for the root filesystem the
command '/sbin/btrfs device scan' must be issued from the initramfs
before any attempt to mount it, otherwise the kernel will panic.
This command is already triggered by the /init script only if the kernel
cmdline has rootfstype=btrfs and /sbin/btrfs file exists.
But the Sabayon genkernel initramfs is missing /sbin/btrfs. So, I had to
add this file along with the only missing dependency /lib/liblzo2.so.2.
I'm pretty sure this lib is actually NOT required since it looks to be
only about the BTFS option compress=lzo (which does not makes sense for
the read-only mount at the initramfs boot time).
Could it be possible to include /sbin/btrfs executable in the initramfs
in Sabayon, please?
--
Nicolas Sebrecht
