Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[HOWTO] Creating ZFS kernel modules for SystemRescueCD
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Documentation, Tips & Tricks
View previous topic :: View next topic  
Author Message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5921
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Sat Feb 28, 2015 10:43 pm    Post subject: [HOWTO] Creating ZFS kernel modules for SystemRescueCD Reply with quote

[HOWTO] Creating ZFS kernel modules for SystemRescueCD

Hi guys,


this article is WIP [work in progress/process]


since I don't have access to gmail via SystemRescueCD right now (midori keeps on crashing when trying to log in; the gmail draft functionality is quite handy sometimes),

I'm pasting the preliminary raw data here and will add more later to make more sense of it - for some of you it might already be enough


Kernel Configuration:
(currently for 4.5.1)

alternate kernel amd64 config:

http://pastebin.com/p9n2SdW8
3.18.5-alt451-amd64 x86_64

default kernel amd64 config:

http://pastebin.com/qCX0uc2c
3.14.31-std451-amd64 x86_64

fixme:
Remove the first line (zcat /proc/config.gz)
from the pasted kernel config file


Toolchain:

fixme:
BEFORE building kernel modules switch toolchain

ld.bfd
binutils 2.23.2
gcc 4.8.3

fixme:
AFTER building kernel modules switch toolchain

CFLAGS for kernel modules:

fixme:
BEFORE building kernel modules switch CFLAGS


for (almost) universal compatibility

Code:
-march=nocona -mtune=generic



fixme:
AFTER building kernel modules switch CFLAGS

Build Tools:

bliss-initramfs 1.8.1 specifically is needed, since that version includes support for buildling the SRM kernel modules
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r3/bliss-initramfs/1.8.1


SystemRescueCD USB-Stick Setup:

http://www.sysresccd.org/Sysresccd-manual-en_How_to_install_SystemRescueCd_on_an_USB-stick#E.29_Manual_installation_from_Linux_using_cp_.28deprecated.29
I prefer to follow the manual installation steps and learned to distrust scripts (latest example is Steam for Linux where moving it into a different directy deletes all your home directory content !)

in addition to step "Step 3: Copy files from the CD-ROM"

/mnt/usbstick/boot/grub/grub-451.cfg needs to be modified

to have

Code:
linux   /syslinux/


instead of

Code:
linux   /isolinux/



Caching with Alternate Kernel, 64bit:

if you're lazy/productive like me and would like to have an option to pre-cache all files of SysRescueCD with the Alternate Kernel option,

you can add

Code:
menuentry "SystemRescueCd (64bit, alternative kernel cache all files in memory)" {
   set gfxpayload=keep
   linux   /syslinux/altker64 docache
   initrd   /syslinux/initram.igz
}


to

/mnt/usbstick/boot/grub/grub-451.cfg
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.5.2

Hardcore Gentoo Linux user since 2004 :D


Last edited by kernelOfTruth on Thu Mar 19, 2015 10:17 pm; edited 1 time in total
Back to top
View user's profile Send private message
steveL
Advocate
Advocate


Joined: 13 Sep 2006
Posts: 3908
Location: The Peanut Gallery

PostPosted: Sun Mar 01, 2015 9:45 pm    Post subject: Reply with quote

Good one, KoT; keep it up. :-)
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5921
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Thu Mar 19, 2015 10:18 pm    Post subject: Reply with quote

thanks steveL :)
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.5.2

Hardcore Gentoo Linux user since 2004 :D
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Documentation, Tips & Tricks All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum