pxeboot fails to find rootfs created by livecd-iso-to-pxeboot

[sheng.zheng]

hello
We are running cobbler-1.2.4-1 on RHEL5.2. Created initrd.img and 
vmlinuz on another server(Fedora9) by livecd-iso-to-pxeboot command and 
added the files as a distro to cobbler. All the steps are same as this 
howto: https://fedorahosted.org/cobbler/wiki/HowToPxeAnyLiveCd
PXE can boot and download the big initrd.img but cannot find the rootfs. 
Show me error like below:

---------------------
md: autorun ...
md: ... autorun DONE
VFS: Cannot open root device "Fedora-9-i686-Live.iso" or unknown-block(0,0)
Please append a correct "root=" boot option;here are the available 
partitions:
0100 16384 ram0 (driver?)
0101 16384 ram1 (driver?)
0102 16384 ram2 (driver?)
...
...
...
010e 16384 ram14 (driver?)
010f 16384 ram15 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(0,0)
----------------------

My pxelinux configuration file for the client created by cobbler: 
/tftpboot/pxelinux.cfg/01-00-16-3e-aa-bb-cc
------------------
default linux
prompt 0
timeout 1
label linux
kernel /images/liveFedora9/Fedora9-i686-live-vmlinuz.img
append initrd=/images/liveFedora9/Fedora9-i686-live-initrd.img 
rootflags=loop root=/Fedora-9-i686-Live.iso syslog=10.0.0.135:25150
rootfstype=iso9660 kssendmac 
ks=http://10.0.0.135/cblr/svc/op/ks/system/testvm
-------------------
Any idea?
Thank you in advance

--Sheng

[Slinky]

Sheng,

Try adding a --kopts options like

root=/dev/ram rw




2008/9/19 Sheng.Zheng <sheng.zheng(a)etimestech.jp&gt;

>  hello
>  We are running cobbler-1.2.4-1 on RHEL5.2. Created initrd.img and
>  vmlinuz on another server(Fedora9) by livecd-iso-to-pxeboot command and
>  added the files as a distro to cobbler. All the steps are same as this
>  howto: https://fedorahosted.org/cobbler/wiki/HowToPxeAnyLiveCd
>  PXE can boot and download the big initrd.img but cannot find the rootfs.
>  Show me error like below:
>
>  ---------------------
>  md: autorun ...
>  md: ... autorun DONE
>  VFS: Cannot open root device "Fedora-9-i686-Live.iso" or unknown-block(0,0)
>  Please append a correct "root=" boot option;here are the available
>  partitions:
>  0100 16384 ram0 (driver?)
>  0101 16384 ram1 (driver?)
>  0102 16384 ram2 (driver?)
>  ...
>  ...
>  ...
>  010e 16384 ram14 (driver?)
>  010f 16384 ram15 (driver?)
>  Kernel panic - not syncing: VFS: Unable to mount root fs on
>  unknown-block(0,0)
>  ----------------------
>
>  My pxelinux configuration file for the client created by cobbler:
>  /tftpboot/pxelinux.cfg/01-00-16-3e-aa-bb-cc
>  ------------------
>  default linux
>  prompt 0
>  timeout 1
>  label linux
>  kernel /images/liveFedora9/Fedora9-i686-live-vmlinuz.img
>  append initrd=/images/liveFedora9/Fedora9-i686-live-initrd.img
>  rootflags=loop root=/Fedora-9-i686-Live.iso syslog=10.0.0.135:25150
>  rootfstype=iso9660 kssendmac
>  ks=http://10.0.0.135/cblr/svc/op/ks/system/testvm
>  -------------------
>  Any idea?
>  Thank you in advance
>
>  --Sheng
>
>
>
>
>
>
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>

[sheng.zheng]

Slinky

Thank you for your reply. I changed "root=/Fedora-9-i686-Live.iso" to
"root=/dev/ram rw" or "root=/dev/ram0 rw" etc, but still not work.

-----------------------
md: autorun ...
md: ... autorun DONE
List of all partitions:
0100 16384 ram0 (driver?)
0101 16384 ram1 (driver?)
0102 16384 ram2 (driver?)
...
...
...
010e 16384 ram14 (driver?)
010f 16384 ram15 (driver?)
No filesystem could mount root, tried: iso9660
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(1,0)
---------------------------


--Sheng


Slinky :
>  Sheng,
>
>  Try adding a --kopts options like
>
>  root=/dev/ram rw
>
>
>
>
>  2008/9/19 Sheng.Zheng <sheng.zheng(a)etimestech.jp
>  <mailto:[e-mail]>>
>
>      hello
>      We are running cobbler-1.2.4-1 on RHEL5.2. Created initrd.img and
>      vmlinuz on another server(Fedora9) by livecd-iso-to-pxeboot
>      command and
>      added the files as a distro to cobbler. All the steps are same as this
>      howto: https://fedorahosted.org/cobbler/wiki/HowToPxeAnyLiveCd
>      PXE can boot and download the big initrd.img but cannot find the
>      rootfs.
>      Show me error like below:
>
>      ---------------------
>      md: autorun ...
>      md: ... autorun DONE
>      VFS: Cannot open root device "Fedora-9-i686-Live.iso" or
>      unknown-block(0,0)
>      Please append a correct "root=" boot option;here are the available
>      partitions:
>      0100 16384 ram0 (driver?)
>      0101 16384 ram1 (driver?)
>      0102 16384 ram2 (driver?)
>      ...
>      ...
>      ...
>      010e 16384 ram14 (driver?)
>      010f 16384 ram15 (driver?)
>      Kernel panic - not syncing: VFS: Unable to mount root fs on
>      unknown-block(0,0)
>      ----------------------
>
>      My pxelinux configuration file for the client created by cobbler:
>      /tftpboot/pxelinux.cfg/01-00-16-3e-aa-bb-cc
>      ------------------
>      default linux
>      prompt 0
>      timeout 1
>      label linux
>      kernel /images/liveFedora9/Fedora9-i686-live-vmlinuz.img
>      append initrd=/images/liveFedora9/Fedora9-i686-live-initrd.img
>      rootflags=loop root=/Fedora-9-i686-Live.iso
>      syslog=10.0.0.135:25150 <http://10.0.0.135:25150>
>      rootfstype=iso9660 kssendmac
>      ks=http://10.0.0.135/cblr/svc/op/ks/system/testvm
>      -------------------
>      Any idea?
>      Thank you in advance
>
>      --Sheng
>
>
>
>
>
>

[Michael DeHaan]

sheng.zheng wrote:
>  Slinky
>
>  Thank you for your reply. I changed "root=/Fedora-9-i686-Live.iso" to
>  "root=/dev/ram rw" or "root=/dev/ram0 rw" etc, but still not work.
>
>  -----------------------
>  md: autorun ...
>  md: ... autorun DONE
>  List of all partitions:
>  0100 16384 ram0 (driver?)
>  0101 16384 ram1 (driver?)
>  0102 16384 ram2 (driver?)
>  ..
>  ..
>  ..
>  010e 16384 ram14 (driver?)
>  010f 16384 ram15 (driver?)
>  No filesystem could mount root, tried: iso9660
>  Kernel panic - not syncing: VFS: Unable to mount root fs on
>  unknown-block(1,0)
>  ---------------------------
>
>
>  --Sheng
>     
Slinky's suggestion was not correct.

When you run livecd-iso-to-pxeboot it will create a "tftpboot" 
subdirectory in your current directory. You can hop inside that 
directory to see the filenames used in the kernel arguments (see 
pxelinux.cfg in that directory). Use those same arguments when adding 
the live CD to cobbler.

>  Slinky :
>    
> > Sheng,
> >
> > Try adding a --kopts options like
> >
> > root=/dev/ram rw
> >
> >
> >
> >
> > 2008/9/19 Sheng.Zheng <sheng.zheng(a)etimestech.jp
> > <mailto:[e-mail]>>
> >
> >     hello
> >     We are running cobbler-1.2.4-1 on RHEL5.2. Created initrd.img and
> >     vmlinuz on another server(Fedora9) by livecd-iso-to-pxeboot
> >     command and
> >     added the files as a distro to cobbler. All the steps are same as this
> >     howto: https://fedorahosted.org/cobbler/wiki/HowToPxeAnyLiveCd
> >     PXE can boot and download the big initrd.img but cannot find the
> >     rootfs.
> >     Show me error like below:
> >
> >     ---------------------
> >     md: autorun ...
> >     md: ... autorun DONE
> >     VFS: Cannot open root device "Fedora-9-i686-Live.iso" or
> >     unknown-block(0,0)
> >     Please append a correct "root=" boot option;here are the available
> >     partitions:
> >     0100 16384 ram0 (driver?)
> >     0101 16384 ram1 (driver?)
> >     0102 16384 ram2 (driver?)
> >     ...
> >     ...
> >     ...
> >     010e 16384 ram14 (driver?)
> >     010f 16384 ram15 (driver?)
> >     Kernel panic - not syncing: VFS: Unable to mount root fs on
> >     unknown-block(0,0)
> >     ----------------------
> >
> >     My pxelinux configuration file for the client created by cobbler:
> >     /tftpboot/pxelinux.cfg/01-00-16-3e-aa-bb-cc
> >     ------------------
> >     default linux
> >     prompt 0
> >     timeout 1
> >     label linux
> >     kernel /images/liveFedora9/Fedora9-i686-live-vmlinuz.img
> >     append initrd=/images/liveFedora9/Fedora9-i686-live-initrd.img
> >     rootflags=loop root=/Fedora-9-i686-Live.iso
> >     syslog=10.0.0.135:25150 <http://10.0.0.135:25150>
> >     rootfstype=iso9660 kssendmac
> >     ks=http://10.0.0.135/cblr/svc/op/ks/system/testvm
> >     -------------------
> >     Any idea?
> >     Thank you in advance
> >
> >     --Sheng
> >
> >
> >
> >
> >
> >
> >     
>
>
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>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>