Discussion:
[Grml] pxe-boot-problems
Martin Schulte
2010-03-08 21:01:51 UTC
Permalink
Hello,

i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
via pxe. My default config-file looks like this:
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
I copied the linux26 and the minirt26.gz file to my tftpboot-directory.
PXE-booting worked before.
I mounted the grml-medium_2009.10.iso using 'mount -o loop' to
/nfs/grml. This path (/nfs) is entered in the /etc/exports and works fine.

While booting, i get the message:
------
Could not find kernel image: linux
------
If you look above in my default the kernel is set this way: KERNEL linux26

so, i first don't unterstand the sense of this message, because the
kernel is named: linux26
Second, after renaming linux26 into linux, this message don't occurs,
but the system is going down, soon.

Someone who knows the resons?

Thanks, Martin
Christian Hofstaedtler
2010-03-09 17:09:24 UTC
Permalink
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.

Christian
Martin Schulte
2010-03-31 22:28:14 UTC
Permalink
Ok,

know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.

Any idea?

Thanks, Martin
Post by Christian Hofstaedtler
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.
Christian
_______________________________________________
Grml mailing list - Grml at mur.at
http://lists.mur.at/mailman/listinfo/grml
join #grml on irc.freenode.org
grml-devel-blog: http://grml.supersized.org/
christian hofstaedtler
2010-04-01 17:40:11 UTC
Permalink
Martin,
Post by Martin Schulte
Ok,
know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.
Any idea?
There are multiple possible reasons for this. Make sure you're using the
correct initrd, and try specifying the NFS server by IP instead of by
name.
If this doesn't help, provide the last 25 lines of kernel output,
possibly by making available a physical screenshot (with large enough
resolution) or a virtual one (depending on your setup).

Christian
christian hofstaedtler
2010-04-01 17:40:11 UTC
Permalink
Martin,
Post by Martin Schulte
Ok,
know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.
Any idea?
There are multiple possible reasons for this. Make sure you're using the
correct initrd, and try specifying the NFS server by IP instead of by
name.
If this doesn't help, provide the last 25 lines of kernel output,
possibly by making available a physical screenshot (with large enough
resolution) or a virtual one (depending on your setup).

Christian
christian hofstaedtler
2010-04-01 17:40:11 UTC
Permalink
Martin,
Post by Martin Schulte
Ok,
know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.
Any idea?
There are multiple possible reasons for this. Make sure you're using the
correct initrd, and try specifying the NFS server by IP instead of by
name.
If this doesn't help, provide the last 25 lines of kernel output,
possibly by making available a physical screenshot (with large enough
resolution) or a virtual one (depending on your setup).

Christian

Martin Schulte
2010-03-31 22:28:14 UTC
Permalink
Ok,

know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.

Any idea?

Thanks, Martin
Post by Christian Hofstaedtler
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.
Christian
_______________________________________________
Grml mailing list - Grml at mur.at
http://lists.mur.at/mailman/listinfo/grml
join #grml on irc.freenode.org
grml-devel-blog: http://grml.supersized.org/
Martin Schulte
2010-03-31 22:28:14 UTC
Permalink
Ok,

know it boots, but during booting the message
------
kernel-panic - no syncing: unable to root nf on block ...
------
and the system shuts down.

Any idea?

Thanks, Martin
Post by Christian Hofstaedtler
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.
Christian
_______________________________________________
Grml mailing list - Grml at mur.at
http://lists.mur.at/mailman/listinfo/grml
join #grml on irc.freenode.org
grml-devel-blog: http://grml.supersized.org/
Martin Schulte
2010-03-08 21:01:51 UTC
Permalink
Hello,

i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
via pxe. My default config-file looks like this:
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
I copied the linux26 and the minirt26.gz file to my tftpboot-directory.
PXE-booting worked before.
I mounted the grml-medium_2009.10.iso using 'mount -o loop' to
/nfs/grml. This path (/nfs) is entered in the /etc/exports and works fine.

While booting, i get the message:
------
Could not find kernel image: linux
------
If you look above in my default the kernel is set this way: KERNEL linux26

so, i first don't unterstand the sense of this message, because the
kernel is named: linux26
Second, after renaming linux26 into linux, this message don't occurs,
but the system is going down, soon.

Someone who knows the resons?

Thanks, Martin
Christian Hofstaedtler
2010-03-09 17:09:24 UTC
Permalink
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.

Christian
Martin Schulte
2010-03-08 21:01:51 UTC
Permalink
Hello,

i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
via pxe. My default config-file looks like this:
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
I copied the linux26 and the minirt26.gz file to my tftpboot-directory.
PXE-booting worked before.
I mounted the grml-medium_2009.10.iso using 'mount -o loop' to
/nfs/grml. This path (/nfs) is entered in the /etc/exports and works fine.

While booting, i get the message:
------
Could not find kernel image: linux
------
If you look above in my default the kernel is set this way: KERNEL linux26

so, i first don't unterstand the sense of this message, because the
kernel is named: linux26
Second, after renaming linux26 into linux, this message don't occurs,
but the system is going down, soon.

Someone who knows the resons?

Thanks, Martin
Christian Hofstaedtler
2010-03-09 17:09:24 UTC
Permalink
Martin,
Post by Martin Schulte
i'm using grml the first time, and i run in some problems. I followed
this guide http://wiki.grml.org/doku.php?id=terminalserver to boot grml
-----
LABEL grml
KERNEL linux26
APPEND root=/dev/nfs rw nfsroot=main:/nfs/grml boot=live lang=us nomce
quiet apm=power-off nodhcp noprompt noeject initrd=minirt26.gz vga=791
-----
[...]
------
Could not find kernel image: linux
------
pxelinux (or syslinux for this matter) - by default - does not boot the first
specified kernel configuration, but tries to boot a kernel called "linux".
You can specify an alternate label by using the DEFAULT statement in your
cofniguration file.
See http://syslinux.zytor.com/wiki/index.php/SYSLINUX#DEFAULT_command
for details.

Christian
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