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From: | Andreas Färber |
Subject: | Re: [Qemu-devel] Booting custom kernel in qemu |
Date: | Sun, 29 May 2011 11:41:50 +0200 |
Am 28.05.2011 um 22:05 schrieb Apelete Seketeli:
On 27-May-11, Amit Shah wrote:On (Thu) 26 May 2011 [21:59:01], Apelete Seketeli wrote:I wanted to launch the kernel in a terminal for practical purposes, soI tried: qemu -kernel bzImage -append console=ttyS0Add -serial stdio to get those logs.[...] For the time being I'm using qemu -kernel bzImage -append console=ttyS0 -S -nographic in order to launch gdbserver in the monitor and attach a gdb in the host; [...]
You can use -S -s or -S -gdb ... for that.
$ qemu -S -kernel arch/x86/boot/bzImage -append console=ttyS0 - nographic -serial stdiochardev: opening backend "stdio" failed qemu: could not open serial device 'stdio': No such file or directory Why do I get an error since stdio is (according to the manual) the standard device in non graphical mode ?
-nographic implies -serial stdio, so it's redundant. When using SDL or Cocoa, -serial stdio gives you serial on the console in addition to the graphical window. -nographic just gives you the console output.
HTH, Andreas
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