From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: Xen 4.0 does not boot up.
Date: Thu, 27 May 2010 11:59:13 -0400
Message-ID: <20100527155913.GA5734@phenom.dumpdata.com>
References: <20100513114014.GX17817@reaktio.net>
	<774702.77673.qm@web34205.mail.mud.yahoo.com>
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On Thu, May 13, 2010 at 12:48:32PM -0700, ccmail111 wrote:
>=20
> Hi Pasi,
>=20
> Here it is:
>=20
> title Xen 4.0 debug=A0 XenLinux 2.6
> =A0=A0=A0=A0=A0=A0=A0 root (hd0,0)
> =A0=A0=A0=A0=A0=A0 kernel /xen-4.0.0-rc9.gz console=3Dvga noreboot logl=
vl=3Dall=A0 vga=3Dtext-80x50,keep iommu=3Doff apic=3Ddebug gues
> t_loglvl=3Dall
> =A0=A0=A0=A0=A0=A0 module /vmlinuz-2.6.31.13=A0 root=3D/dev/sda2 ro con=
sole=3Dtty0=A0 earlyprintk=3Dxen nomodeset initcall_debug deb
> ug loglevel=3D10

The console=3Dtty0 means that when initrd kicks in, the console output
switches over to the tty0 (which I belive is your screen). So no more
serial output. Change that to 'console=3Dhvc0'.

> =A0=A0=A0=A0=A0=A0 module /ramdisk.img.gz
>=20
>=20
> Now I see Xen 4.0 reboot continuously.=20
> Is there a way to capture console logs=A0 when Xen boots up ?

Serial console.