Arch Linux

folatt

Member

Registered: 2015-08-01

Posts: 96

[Continued] Boot problem with Xen, DomU in pygrub

I'm still trying to setup Xen project for the first time and I have yet to succeed to have DomU in working order.
I managed to install Arch Linux inside my DomU, but not able to run it.

Inside my Dom0 - Arch Linux

My error log:

sudo xl create /etc/xen/arkOS-Dev_PV.cfg

/var/log/xen/bootloader.1.log
   pyGRUB  version 0.6
 ┌────────────────────────────────────────────────────────────────────────┐
 │ Arch GNU/Linux, with Linux core repo kernel                            │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 └────────────────────────────────────────────────────────────────────────┘
Use the ^ and ┴ keys to select which entry is highlighted.
Press enter to boot the selected OS, 'e' to edit the
commands before booting, 'a' to modify the kernel arguments
before booting, or 'c' for a command line.







[Errno 2] No such file or directory
Error opening /boot/vmlinuz-linux in guest

My old setup:

/etc/xen/ArkOS-Dev.cfg.old

name = 'ArkOS-Dev'
kernel = "/mnt/arch/boot/x86_64/vmlinuz"
ramdisk = "/mnt/arch/boot/x86_64/archiso.img"
extra = "archisobasedir=arch archisolabel=ARCH_201511"
memory = 512
disk = [ "phy:/dev/sda3,xvda,w", "file:/home/xen/ISO/archlinux-2015.11.01-dual.iso,xvdb:cdrom,r" ]
vif = [ 'mac=00:16:3e:49:2b:a1,bridge=xenbr0' ]

My current setup:

/etc/xen/Arkos-Dev.cfg

name = 'ArkOS-Dev'
bootloader = "pygrub"
memory = 512
disk = [ "phy:/dev/sda3,xvda,w" ]
vif = [ 'mac=00:16:3e:49:2b:a1,bridge=xenbr0' ]

lsblk -f

NAME   FSTYPE LABEL UUID                                 MOUNTPOINT
sda                                                      
|-sda1 vfat         FF2C-B8A3                            /boot
|-sda2 btrfs        b3f4f40f-a8a1-4438-a187-dc02f2104340 /
|-sda3                                                   
`-sda4 swap         f90e6e95-5f00-4138-aa76-13feb4bce985 [SWAP]

mount -o loop /home/xen/ISO/archlinux-201511.01-dual.iso /mnt
ls /mnt -lah

total 26K
drwxr-xr-x 1 root root 2.0K Nov  1 09:34 .
drwxr-xr-x 1 root root  136 Oct 29 20:39 ..
drwxr-xr-x 1 root root 2.0K Nov  1 09:34 EFI
drwxr-xr-x 1 root root 2.0K Nov  1 09:35 arch
drwxr-xr-x 1 root root 2.0K Nov  1 09:34 isolinux
drwxr-xr-x 1 root root 2.0K Nov  1 09:34 loader

mount /dev/sda3 /mnt

mount: wrong fs type, bad option, bad superblock on /dev/sda3,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

Inside my DomU (via old setup) - Arch Linux (as well)

lsblk -f
http://pastebin.archlinux.fr/1717775

arch-chroot /mnt /bin/bash
lsblk -f
http://pastebin.archlinux.fr/1717771

ls -lah /boot
http://pastebin.archlinux.fr/1717772

My grub file:

/boot/grub/grub.cfg
http://pastebin.archlinux.fr/1717774

Last edited by folatt (2015-11-22 10:39:28)

folatt

Member

Registered: 2015-08-01

Posts: 96

Re: [Continued] Boot problem with Xen, DomU in pygrub

Finally figured out that DomU doesn't need a '/boot' partition and that 'raw partition = single partition' (I think). Thus, I need LVM as I still want swap space on my DomU.

Since LVM is not easy, my next question is located at: https://bbs.archlinux.org/viewtopic.php?pid=1580397

Last edited by folatt (2015-11-22 11:20:10)