Difference between pages "Extlinux" and "User:Sursum"

(Difference between pages)
(Installing extlinux)
 
(Created page with "{{Person |Geoloc=47.78129, 7.34687 |Location name=Illzach |Blogs= }}")
 
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== What is ExtLinux? ==
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{{Person
 
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|Geoloc=47.78129, 7.34687
ExtLinux is a simple and modern systemloader bundled with the syslinux tools. Installation is simple and fast, and thanks to our CoreTeam member Slashbeast the configuration is easily automated.
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|Location name=Illzach
 
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|Blogs=
= Installing ExtLinux for funtoo =
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Installing ExtLinux for funtoo is known to work and supported too. If you like to try it just emerge syslinux
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<console>
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# ##i##emerge syslinux
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</console>
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with that you have the complete syslinux tools installed. Another helpful tool you should merge with syslinux is slashbeast's lazykernel tool, so let us merge it too:
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<console>
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# ##i##emerge lazykernel
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</console>
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== Installing extlinux ==
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to install extlinux just follow these steps:
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<console>
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# ##i##install -d /boot/extlinux
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# ##i##extlinux --install /boot/extlinux
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</console>
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The next steps are different depending on if you use an MBR or GPT setup and the HDD you installed on and want to boot from. Let us assume that <tt>/dev/sda</tt> is the drive you will be booting from.
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=== MBR ===
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If you set up your disk with a MBR partition scheme, run the following:
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<console>
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# ##i##dd bs=440 conv=notrunc count=1 if=/usr/share/syslinux/mbr.bin of=/dev/sda
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# ##i##cp /usr/share/syslinux/menu.c32 /boot/extlinux/
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# ##i##cp /usr/share/syslinux/libutil.c32 /boot/extlinux/
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# ##i##touch /boot/extlinux/extlinux.conf
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</console>
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=== GPT ===
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On the other hand, if you te up your disk using GPT, run these commands:
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<console>
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# ##i##sgdisk /dev/sda --attributes=1:set:2
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# ##i##sgdisk /dev/sda --attributes=1:show
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1:2:1 (legacy BIOS bootable)
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# ##i##dd bs=440 conv=notrunc count=1 if=/usr/share/syslinux/gptmbr.bin of=/dev/sda
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# ##i##cp /usr/share/syslinux/menu.c32 /boot/extlinux/
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# ##i##cp /usr/share/syslinux/libutil.c32 /boot/extlinux/
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# ##i##touch /boot/extlinux/extlinux.conf
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</console>
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== Setting up the Kernel ==
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Now if you followed our advice to install lazykernel we have a pretty nice way to solve all the setup with a bit of prework and finish it then. If not you should go to the manual part. :)
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=== lazykernel way ===
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Edit <tt>/etc/lazykernel.conf</tt>:
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{{file|name=/etc/lazykernel.conf|desc= |body=
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# After configuring, hash or remove line below.
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#CONFIGUREFIRST
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# Number of the kernels to keep so `lazykernel clean` will not propose to remove them. Default: 3
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keep_kernels=5
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# Sort kernels by 'version' (biggest version first) or by 'mtime' (latest images first). Default: mtime
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# Sorting by version may fail and 3.3.0-rc2 will be marked as newer than 3.3.0.
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#sort_by='version'
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sort_by=mtime
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# The name for menu entry.
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menu_entry_name="Funtoo Linux"
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# Specify what initramfs image to use, if any. (Optional)
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initramfs='initramfs.cpio.gz'
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# Append kernel params, usualy you use it to specify rootfs device, but you can use it to pass switches to initramfs as well.
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kernel_params="rootfstype=ext4 luks enc_root=/dev/sdb3 lvm root=/dev/mapper/vg-root uswsusp resume=/dev/mapper/vg-swap"
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}}
 
}}
 
{{fancynote| Please make sure to comment out or delete the second line of the config file...else it will spit out an error.}}
 
 
Now let us setup our kernel with lazykernel. If you have a manual kernel just run:
 
 
<console>
 
# ##i##cd <kernel build dir>
 
# ##i##lazykernel auto
 
</console>
 
 
This will generate the modules for you. Copy your kernel form <tt>/usr/src/linux</tt> to <tt>/boot</tt> and generate the <tt>/boot/extlinux/extlinux.conf</tt>. The manual kernel will be the only one supported by lazykernel.
 
 
=== manual extlinux.conf ===
 
 
For other kernels, like those created by genkernel or by the binary USE-flag you need to edit your config by yourself. Just open <tt>/boot/extlinux/extlinux.conf</tt> in your favorite editor:
 
 
{{file|name=/boot/extlinux/extlinux.conf|desc= |body=
 
TIMEOUT 30
 
UI menu.c32
 
 
MENU TITLE Boot Menu
 
MENU COLOR title        1;37;40
 
MENU COLOR border      30;40
 
MENU COLOR unsel        37;40
 
 
LABEL funtoo1
 
        MENU LABEL Funtoo Linux KERNEL-VERSION
 
        LINUX /<kernel>
 
        INITRD /<initramfs>
 
        APPEND rootfstype=ext4 luks enc_root=/dev/sdb3 lvm root=/dev/mapper/vg-root uswsusp resume=/dev/mapper/vg-swap
 
}}
 
 
That's all. You are now ready for boot. You can also define several LABELs in that list to have multiple kernel selections to choose from before booting.
 
 
[[Category:HOWTO]]
 

Latest revision as of 15:17, January 4, 2015

sylvain tyrode

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Illzach (47° 46' 53", 7° 20' 49")