[syslinux] PXELINUX: initrd loading failed

[Gene Cumm]

On Thu, Sep 30, 2010 at 11:21, Muhammad Ammar <mammar at gmail.com> wrote:
> no effect with
>
> boot: linux0
>
> still hanged
>
> The frustrating thing is that, there is not single message which can atleast
> tell whats going on.

Also, remove the word "quiet" from your APPEND statement.

> Regards,
>
> On Thu, Sep 30, 2010 at 5:32 PM, Gene Cumm <gene.cumm at gmail.com> wrote:
>
>> On Thu, Sep 30, 2010 at 07:16, Muhammad Ammar <mammar at gmail.com> wrote:
>> > I build a minimal FC13 using kickstart and livecd-creator.
>> >
>> > Then i created vmlinuz0 and initrd0.img using livecd-iso-to-pxeboot shell
>> > script.
>> >
>> > The  'root=' and 'rootfstype=' parameters were added
>> > by livecd-iso-to-pxeboot shell script.
>> >
>> > Now i have installed 1GB RAM, the following message has gone now
>> >
>> >  initrd too large to handle, disabling initrd
>> >  Kernel panic - not syncing: VFS: Unable to mount root fs
>> > on unknown-block(0,0)
>> >
>> > but it still not loading the OS and hanged(show the syslinux menu and
>> upon
>> > menu entry selection nothing happens)
>>
>> Are you using menu.c32/vesamenu.c32?  If so, exit from the menu system
>> to the "boot: " prompt and type "linux0" (the LABEL in question;
>> without quotes, of course) and watch its output.  This should help you
>> in seeing if there's a hidden error.
>>
>> > Regards,
>> >
>> > On Thu, Sep 30, 2010 at 4:00 PM, Geert Stappers <stappers at stappers.nl
>> >wrote:
>> >
>> >> Op 20100930 om 15:11 schreef Muhammad Ammar:
>> >> > On Thu, Sep 30, 2010 at 2:39 PM, Ferenc Wagner <wferi at niif.hu> wrote:
>> >> > > Muhammad Ammar <mammar at gmail.com> writes:
>> >> > >
>> >> > > > initrd too large to handle, disabling initrd
>> >> > > > Kernel panic - not syncing: VFS: Unable to mount root fs on
>> >> > > > unknown-block(0,0)
>> >> > > >
>> >> > > > Size of initrd0.img is approx. 317 MB
>> >> > > > Size of vmlinuz is approx. 4 MB
>> >> > > >
>> >> > > > Note: The problem is on just one system, all other systems boot
>> >> > > > without any problem.
>> >> > >
>> >> > > Maybe this system hasn't got enough memory for this initrd?
>> >> >
>> >> > I have a 512MB RAM in it. Is this not enough?
>> >> > How can i calculate amount of memory needed for network boot?
>> >>
>> >> I'm not sure there is an "out of memory error".
>> >>
>> >> What I see is :
>> >> > > > Kernel panic - not syncing: VFS: Unable to mount root fs on
>> >> > > > unknown-block(0,0)
>> >>
>> >> So we have 'Unable to mount root fs'  and "unknown-block"
>> >>
>> >> Please explain what the idea is behind
>> >>
>> >> | label linux0
>> >> | menu label MyFedora13 (default)
>> >> |   kernel vmlinuz0
>> >> | APPEND rootflags=loop initrd=initrd0.img root=live:/FC13.iso
>> >> | rootfstype=iso9660 rw liveimg quiet selinux=0 rhgb rd_NO_LUKS rd_NO_MD
>> >> | noiswmd blacklist nouveau
>> >>
>> >> especial the idea about 'root=' and 'rootfstype='
>> >>
>> >>
>> >> Cheers
>> >> Geert Stappers
>>
>> --
>> -Gene
>>
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-- 
-Gene

"No one ever says, 'I can't read that ASCII(plain text) e-mail you sent me.'"