try disk = [ ''tap:aio:/var/lib/xen/test.img,xvda1,w'', ''tap:aio:/var/lib/xen/test.swap,xvda2,w'' ] -------------------- Itamar Reis Peixoto e-mail: itamar@ispbrasil.com.br msn: itamarjp@starmedia.com skype: itamarjp icq: 81053601 +55 34 3238 3845 +55 11 4063 5033 ----- Original Message ----- From: "marek cervenka" <cervajs@fpf.slu.cz> To: <xen-users@lists.xensource.com> Sent: Tuesday, March 20, 2007 1:28 PM Subject: [Xen-users] blktap howto> hi, > > i''m trying move from file: based disk to tap:aio but things don''t work > > i have centos4 dom0 with centos4 domU > xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled > > [root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config > CONFIG_XEN_BLKDEV_TAP=m > > config > disk = [ ''file:/var/lib/xen/test.img,hda1,w'', > ''file:/var/lib/xen/test.swap,hda2,w'' ] > changed to > disk = [ ''tap:aio:/var/lib/xen/test.img,hda1,w'', > ''tap:aio:/var/lib/xen/test.swap,hda2,w'' ] > > blktapctrl do nothing > > domU cannot start, fail when mounting root > > what i''m doing wrong? > i dont have any kernel module for blktap, is this ok? > > --------------------------------------- > Marek Cervenka > Centrum Vypocetni Techniky > CVT - http://cvt.fpf.slu.cz > FPF SLU OPAVA - http://www.fpf.slu.cz > LCNA - http://lcna.slu.cz > ======================================> > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
you need to create a initrd using mkinitrd with xenblk module. -------------------- Itamar Reis Peixoto e-mail: itamar@ispbrasil.com.br msn: itamarjp@starmedia.com skype: itamarjp icq: 81053601 +55 34 3238 3845 +55 11 4063 5033 ----- Original Message ----- From: "marek cervenka" <cervajs@fpf.slu.cz> To: <xen-users@lists.xensource.com> Sent: Tuesday, March 20, 2007 3:03 PM Subject: Re: [Xen-users] blktap howto>> try >> >> disk = [ ''tap:aio:/var/lib/xen/test.img,xvda1,w'', >> ''tap:aio:/var/lib/xen/test.swap,xvda2,w'' ] > > this does not help > > Using IPI Shortcut mode > XENBUS: Timeout connecting to device: device/vbd/51713 (state 3) > XENBUS: Timeout connecting to device: device/vbd/51714 (state 3) > md: Autodetecting RAID arrays. > md: autorun ... > md: ... autorun DONE. > VFS: Cannot open root device "xvda1" or unknown-block(0,0) > Please append a correct "root=" boot option > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > > > >> Itamar Reis Peixoto >> >> e-mail: itamar@ispbrasil.com.br >> msn: itamarjp@starmedia.com >> skype: itamarjp >> icq: 81053601 >> +55 34 3238 3845 >> +55 11 4063 5033 >> ----- Original Message ----- From: "marek cervenka" <cervajs@fpf.slu.cz> >> To: <xen-users@lists.xensource.com> >> Sent: Tuesday, March 20, 2007 1:28 PM >> Subject: [Xen-users] blktap howto >> >> >>> hi, >>> >>> i''m trying move from file: based disk to tap:aio but things don''t work >>> >>> i have centos4 dom0 with centos4 domU >>> xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled >>> >>> [root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config >>> CONFIG_XEN_BLKDEV_TAP=m >>> >>> config >>> disk = [ ''file:/var/lib/xen/test.img,hda1,w'', >>> ''file:/var/lib/xen/test.swap,hda2,w'' ] >>> changed to >>> disk = [ ''tap:aio:/var/lib/xen/test.img,hda1,w'', >>> ''tap:aio:/var/lib/xen/test.swap,hda2,w'' ] >>> >>> blktapctrl do nothing >>> >>> domU cannot start, fail when mounting root >>> >>> what i''m doing wrong? >>> i dont have any kernel module for blktap, is this ok? >>> >>> --------------------------------------- >>> Marek Cervenka >>> Centrum Vypocetni Techniky >>> CVT - http://cvt.fpf.slu.cz >>> FPF SLU OPAVA - http://www.fpf.slu.cz >>> LCNA - http://lcna.slu.cz >>> ======================================>>> >>> >>> _______________________________________________ >>> Xen-users mailing list >>> Xen-users@lists.xensource.com >>> http://lists.xensource.com/xen-users >>> >> >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> > > --------------------------------------- > Marek Cervenka > Centrum Vypocetni Techniky > CVT - http://cvt.fpf.slu.cz > FPF SLU OPAVA - http://www.fpf.slu.cz > LCNA - http://lcna.slu.cz > ======================================> > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
hi, i''m trying move from file: based disk to tap:aio but things don''t work i have centos4 dom0 with centos4 domU xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled [root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config CONFIG_XEN_BLKDEV_TAP=m config disk = [ ''file:/var/lib/xen/test.img,hda1,w'', ''file:/var/lib/xen/test.swap,hda2,w'' ] changed to disk = [ ''tap:aio:/var/lib/xen/test.img,hda1,w'', ''tap:aio:/var/lib/xen/test.swap,hda2,w'' ] blktapctrl do nothing domU cannot start, fail when mounting root what i''m doing wrong? i dont have any kernel module for blktap, is this ok? --------------------------------------- Marek Cervenka Centrum Vypocetni Techniky CVT - http://cvt.fpf.slu.cz FPF SLU OPAVA - http://www.fpf.slu.cz LCNA - http://lcna.slu.cz ====================================== _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> try > > disk = [ ''tap:aio:/var/lib/xen/test.img,xvda1,w'', > ''tap:aio:/var/lib/xen/test.swap,xvda2,w'' ]this does not help Using IPI Shortcut mode XENBUS: Timeout connecting to device: device/vbd/51713 (state 3) XENBUS: Timeout connecting to device: device/vbd/51714 (state 3) md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. VFS: Cannot open root device "xvda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)> Itamar Reis Peixoto > > e-mail: itamar@ispbrasil.com.br > msn: itamarjp@starmedia.com > skype: itamarjp > icq: 81053601 > +55 34 3238 3845 > +55 11 4063 5033 > ----- Original Message ----- From: "marek cervenka" <cervajs@fpf.slu.cz> > To: <xen-users@lists.xensource.com> > Sent: Tuesday, March 20, 2007 1:28 PM > Subject: [Xen-users] blktap howto > > >> hi, >> >> i''m trying move from file: based disk to tap:aio but things don''t work >> >> i have centos4 dom0 with centos4 domU >> xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled >> >> [root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config >> CONFIG_XEN_BLKDEV_TAP=m >> >> config >> disk = [ ''file:/var/lib/xen/test.img,hda1,w'', >> ''file:/var/lib/xen/test.swap,hda2,w'' ] >> changed to >> disk = [ ''tap:aio:/var/lib/xen/test.img,hda1,w'', >> ''tap:aio:/var/lib/xen/test.swap,hda2,w'' ] >> >> blktapctrl do nothing >> >> domU cannot start, fail when mounting root >> >> what i''m doing wrong? >> i dont have any kernel module for blktap, is this ok? >> >> --------------------------------------- >> Marek Cervenka >> Centrum Vypocetni Techniky >> CVT - http://cvt.fpf.slu.cz >> FPF SLU OPAVA - http://www.fpf.slu.cz >> LCNA - http://lcna.slu.cz >> ======================================>> >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >--------------------------------------- Marek Cervenka Centrum Vypocetni Techniky CVT - http://cvt.fpf.slu.cz FPF SLU OPAVA - http://www.fpf.slu.cz LCNA - http://lcna.slu.cz ====================================== _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> try > > disk = [ ''tap:aio:/var/lib/xen/test.img,xvda1,w'', > ''tap:aio:/var/lib/xen/test.swap,xvda2,w'' ]the problem was in CONFIG_XEN_BLKDEV_TAP=m (no module was compiled) after changing to CONFIG_XEN_BLKDEV_TAP=y tap:aio works fine> Itamar Reis Peixoto > > e-mail: itamar@ispbrasil.com.br > msn: itamarjp@starmedia.com > skype: itamarjp > icq: 81053601 > +55 34 3238 3845 > +55 11 4063 5033 > ----- Original Message ----- From: "marek cervenka" <cervajs@fpf.slu.cz> > To: <xen-users@lists.xensource.com> > Sent: Tuesday, March 20, 2007 1:28 PM > Subject: [Xen-users] blktap howto > > >> hi, >> >> i''m trying move from file: based disk to tap:aio but things don''t work >> >> i have centos4 dom0 with centos4 domU >> xen 3.0.4-testing changeset: 13138:d401cb96d8a0 self compiled >> >> [root@xen linux-2.6.16.38-xen]# grep XEN_BLKDEV_TAP .config >> CONFIG_XEN_BLKDEV_TAP=m >> >> config >> disk = [ ''file:/var/lib/xen/test.img,hda1,w'', >> ''file:/var/lib/xen/test.swap,hda2,w'' ] >> changed to >> disk = [ ''tap:aio:/var/lib/xen/test.img,hda1,w'', >> ''tap:aio:/var/lib/xen/test.swap,hda2,w'' ] >> >> blktapctrl do nothing >> >> domU cannot start, fail when mounting root >> >> what i''m doing wrong? >> i dont have any kernel module for blktap, is this ok? >> >> --------------------------------------- >> Marek Cervenka >> Centrum Vypocetni Techniky >> CVT - http://cvt.fpf.slu.cz >> FPF SLU OPAVA - http://www.fpf.slu.cz >> LCNA - http://lcna.slu.cz >> ======================================>> >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >--------------------------------------- Marek Cervenka Centrum Vypocetni Techniky CVT - http://cvt.fpf.slu.cz FPF SLU OPAVA - http://www.fpf.slu.cz LCNA - http://lcna.slu.cz ====================================== _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users