Xen Dom0: Difference between revisions
(update / serial console / more accurate infos / almost working) |
(xencommons working after Xen bumped to 4.1.1) |
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Line 57: | Line 57: | ||
vi /etc/rc.conf | vi /etc/rc.conf | ||
rc_sys="xen0" | rc_sys="xen0" | ||
why ? | |||
Commands recap: | |||
{{Cmd| | |||
apk add xen | |||
apk add udev | |||
rc-service udev start ; rc-service udev-postmount start | |||
}} | |||
If you want "xm" command | |||
{{Cmd|rc-service xend start}} | |||
So let's install services at boot time : | |||
{{Cmd| | |||
rc-update add udev sysinit | |||
rc-update add udev-postmount default | |||
rc-update add xencommons | |||
rc-update add xend | |||
}} |
Revision as of 15:40, 22 August 2011
So before anything else verify that you can reliably log into your Alpine box through SSH, because with some video chipset (intel in my case) xen will blank your screen so you will have to use SSH.
Then upgrade your setup to Edge/testing (as of the date of writing, Xen is only available in Edge). Install Xen:
apk add xen
Modify your extlinux.cfg (credits: http://lists.alpinelinux.org/alpine-devel/1406.html) since video card is not working for now, we will use a serial console:
SERIAL 0 115200 DEFAULT menu.c32 PROMPT 0 MENU TITLE Alpine/Linux Boot Menu MENU HIDDEN MENU AUTOBOOT Alpine will be booted automatically in # seconds. TIMEOUT 50 LABEL 0 MENU DEFAULT MENU LABEL Linux 2.6.38.8-vs2.3.0.37-rc17 KERNEL vmlinuz-2.6.38.8-vs2.3.0.37-rc17 APPEND initrd=initramfs-2.6.38.8-vs2.3.0.37-rc17 root=UUID=f40e340b-ea49-445b-81c0-4d7104b56662 modules=sd-mod,usb-storage,ext4 quiet LABEL 1 MENU LABEL Linux 2.6.36.3-scst KERNEL vmlinuz-2.6.36.3-scst APPEND initrd=initramfs-2.6.36.3-scst root=UUID=f40e340b-ea49-445b-81c0-4d7104b56662 modules=sd-mod,usb-storage,ext4 quiet LABEL 2 MENU LABEL Linux 2.6.38.8-grsec KERNEL vmlinuz-2.6.38.8-grsec APPEND initrd=initramfs-2.6.38.8-grsec root=UUID=f40e340b-ea49-445b-81c0-4d7104b56662 modules=sd-mod,usb-storage,ext4 quiet LABEL 3 MENU LABEL XEN KERNEL mboot.c32 APPEND /boot/xen-4.gz loglvl=all guest_loglvl=all com1=115200,8n1 console=com1 dom0_mem=256M --- /boot/vmlinuz-grsec root=UUID=f40e340b-ea49-445b-81c0-4d7104b56662 modules=sd-mod,usb-storage,ext4 console=hvc0 earlyprintk=xen nomodeset --- /boot/initramfs-grsec
Of course replace root=UUID= with your UUID in yours.
xl info won't work
Start xecommons:
alpine:/boot# /etc/init.d/xencommons start Starting xenstored...FATAL: Failed to open evtchn device: No such file or directory
well this will fail but xl info will work anyway
Oh but wait, evtchn device is built in the kernel, so why is there no /dev/xen/evtch file ? let's start udev ! ;)
rc-service udev start
That's all folks !
on going debug: vi /etc/rc.conf rc_sys="xen0" why ?
Commands recap:
apk add xen apk add udev rc-service udev start ; rc-service udev-postmount start
If you want "xm" command
rc-service xend start
So let's install services at boot time :
rc-update add udev sysinit rc-update add udev-postmount default rc-update add xencommons rc-update add xend