Re: Custom Kernel Won't Boot
Alvin Oga a écrit :
On Wed, 14 Sep 2005, [ISO-8859-1] Aurélien Campéas wrote:
a "mkinitrd for the dummies", riddled with examples, would be neat
but for a costom kernel without initrd, also don't forget to disable
initrd support (in the kernel) (it sits near the RAM fs section)
do you man disable or enable initrd support??
- at least its black-n-white, in that we supposedly
know what to do with that option
disable it
but what about other options like, ramdisk support too which is
NOT the same as initrd support
true, you can keep ramdisk support if you have some use for it
or do you only want to use loop devices ??
true
and why use loop devices, etc
cause they are useful to me ?
..
gazillion examples ...
- in each distro .. there typically is an initrd.gz or similarly
named files somewhere on their boot media
http://Linux-Boot.net/InitRD/Viewing/
to break those initrd.gz so you can peek isnide would depend on how
they built it ... and sometimes its compressed and sometimes not
even if its named to imply one way or the other
( *.img vs *.gz vs *.foo )
- some use minix + cramfs ... which your system would need
to support for you to peek in
thanks I already knew that
not exactly a "for the dummies" (or "lazy dogs") approach
for making your own ...
look at the contents of other distro's initrd, since we all
know the distro's CAN install into most any hardware
after reading/studyng their stuff, you can make your own with:
http://Linux-Boot.net/InitRD
- ramdisk
- loop devices
ramdisk is limited in size by the kernel option at kernel compile
time ...
dd if=/dev/zero of=/dev/ram0 bs=anything count=big
will NOT work
loopdevices can be any size
I'll have a look into that some time in the future ...
I've learnt not to rely on debian initrd-ed kernels because for some
reason, on my personnal machine, the net driver failed to work if not
loaded in-kernel. Initrd is fine for distribution kernels, but on a
personnal level, it can help to know how to get rid of it.
Cheers,
Aurélien.
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