[gentoo-user] btrfs (raid1) no interramfs

[James]

Hello,


Surely this booting (subject) can be done and has been done:: iff you
believe what has been posted. Here is one solution (patch) [1] 
from an interesting discussion:: albeit dated. [2] 


I think this subject is worth exploring because I do not believe
that these booting issues are all related to btrfs issues. I think
they are sometimes transient and are affected by other combinations of
hardware and kernel and file system configurations. Let's also face the fact
that the kernel codes are undergoing massive and frequent changes::
now we can " live patching the kernel code" so the need for more robust
tools and methods are warranted; even exasperated if you do not reboot a
given system frequently. [3]


Paul Tobias's recent post " Adding "rootdelay=30" to the kernel command 
line" is but the latest example. Parsing out some of these threads
on gentoo user does suggest a general booting problem, exasperated by more
complex installations (not exclusively btrfs) and thus worth the focus
to nail down these issue and the potential work around(s); that they should
end up well documented and in the gentoo wiki, imho.


As I have mentioned in several threads, I think the available of
"netconsole" for fine grain debugging will be useful, as long as we
can find a way to setup the ethernet interface as quickly as possible
in the sequence of boot events or a way to buffer that boot info (in ram?)
and then transmitt it remotely as soon as possible for remote install
monitoring and debugging.


ALL thoughts and comments are most welcome,
James


[1] https://gist.github.com/the8lack8ox/2706705

[2] https://forums.gentoo.org/viewtopic-p-7275724.html

[3]
http://kernelnewbies.org/Linux_4.0#head-6e2ee9e5b7cfdb480861fda324a804734dc14f89