On Wednesday 27 July 2005 11:33, Kyrre M Begnum wrote:
> Hello list,
> I am using uml in a setting where i am only interested in the output of
> its console, and won't give it any console input.
> I have encountered a phenomenon that if i pipe something to the uml
> command the boot freezez at:
If you have a console reading from stdin/stdout (as the default
con0=fd:0,fd:1) this will happen. Change that to something else. Uml as
partial assumptions on the fact that it has a tty as standard I/O.
> echo something | ./linux ......
> kjournald starting. Commit interval 5 seconds
> EXT3-fs: mounted filesystem with ordered data mode.
> VFS: Mounted root (ext3 filesystem) readonly.
> *hang*
> What would normally have appeard next is:
> line_ioctl: tty0: ioctl KDSIGACCEPT called
> INIT: version 2.84 booting
> Activating swap.
> Checking root file system...
> fsck 1.27 (8-Mar-2002)
> The same happens if i run the uml command from a perl-wrapper:
> #!/usr/bin/perl
> system("linux .....");
> exit 0;
> echo something | perl-wrapper.pl
> ... and it hangs at the same spot.
> I understand that it is related to tty-allocation, but i could not find
> any solution after trying with different con-settings. I seem to miss
> something. So my question is, how do i get only the output and remove the
> hang if the perl wrapper is piped to?
> Thank you in advance.
> Kyrre
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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