Re: [Xen-users] Does xen 3.4.2 support EXT4 filesystem?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Jan 12, 2010 at 07:55:59PM -0700, Nick Couchman wrote:
> EXT4 is not part of Xen, it's part of the Linux kernel that runs in dom0 on 
> Xen.  
> Gentoo's Xen kernel should run fine on the Xen 3.4.2 tarball from the Xen 
> site.  
> Xen's site only has the 2.6.18 kernel, which probably does not include EXT4.  
> You could try to find someone who has back-ported EXT4 to 2.6.18, 
> but I'm not sure that's actually happened.
> 

Redhat's RHEL5 2.6.18 (Xen Dom0) kernels have a backport of ext4.

List of available Xen dom0 kernels:
http://wiki.xensource.com/xenwiki/XenDom0Kernels

-- Pasi

> -Nick
> 
> >>> On 2010/01/12 at 19:25, Yunfeng Xu <hywl51@xxxxxxxxx> wrote:
> > I currently use the xen-3.4.2 tarball from http://www.xen.org/. What
> > are the differences between officail version and the gentoo version?
> > Does it means the official version don't support the newer kernel
> > version with the mint8(2.6.31-14), so gentoo makes the patch?
> > 
> > On 1/12/10, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:
> >> All entries bellow have root=/sdb11 ro console=tty0 compiled as built-in
> >> string (root FS is ext4)
> >> 2.6.31.8(9) xen-ified aka Suse kernels via Andy Lyon's rebased patch sets 
> >> :-
> >>
> >> http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.31-10.tar.bz2
> >>  
> >>  for vanilla 2.6.31.9
> >> http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.31-9.tar.bz2 
> >>  for vanilla 2.6.31.8
> >>
> >> menuentry "Xen 3.4 / Ubuntu 9.10 kernel 2.6.31.9 xenified" {
> >> insmod ext2
> >> set root=(hd1,10)
> >> multiboot (hd1,10)/xen-3.4.gz
> >> module (hd1,10)/vmlinuz-2.6.31.9
> >> module (hd1,10)/initrd-2.6.31.9.img
> >> }
> >>
> >> menuentry "Xen 3.4 / Ubuntu 9.10 kernel 2.6.31.8 xenified" {
> >> insmod ext2
> >> set root=(hd1,10)
> >> multiboot (hd1,10)/xen-3.4.gz
> >> module (hd1,10)/vmlinuz-2.6.31.8
> >> module (hd1,10)/initrd-2.6.31.8.img
> >> }
> >>
> >> menuentry "Xen 3.4 / Ubuntu 9.10 kernel 2.6.31.6 pvops" {
> >> insmod ext2
> >> set root=(hd1,10)
> >> multiboot (hd1,10)/xen-3.4.gz
> >> module (hd1,10)/vmlinuz-2.6.31.6
> >> module (hd1,10)/initrd-2.6.31.6.img
> >> }
> >>
> >> Every entry works.
> >>
> >> Boris.
> >>
> >> --- On Tue, 1/12/10, Yunfeng Xu <hywl51@xxxxxxxxx> wrote:
> >>
> >> From: Yunfeng Xu <hywl51@xxxxxxxxx>
> >> Subject: [Xen-users] Does xen 3.4.2 support EXT4 filesystem?
> >> To: xen-users@xxxxxxxxxxxxxxxxxxx 
> >> Date: Tuesday, January 12, 2010, 3:21 AM
> >>
> >> Hi, guys
> >>
> >> I try to install xen 3.4.2 on my mint 8, and got the following error
> >> when system boots:
> >>
> >> not syncing: VFS: unable to mount root fs on unknow-block (0,0)
> >>
> >> This is my grub2 config:
> >>
> >> menuentry "Xen 3.4 / XenLinux 2.6 (/dev/sda1)" {
> >>            insmod ext2
> >>     set root=(hd0,1)
> >>     search --no-floppy --fs-uuid --set 2cc821fc-4ac1-426a-bfb6-0e97e8a07046
> >>     multiboot  (hd0,1)/boot/xen-3.4.gz
> >>     module (hd0,1)/boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro   quiet
> >> splash
> >> }
> >>
> >> My guess that the problem is due to EXT4, does anyone can give me some
> >> advise?
> >>
> >> Thanks
> >> Yunfeng
> >>
> >> _______________________________________________
> >> Xen-users mailing list
> >> Xen-users@xxxxxxxxxxxxxxxxxxx 
> >> http://lists.xensource.com/xen-users 
> >>
> >>
> >>
> >>
> 
> 
> 
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