On Thu, 2010-02-04 at 15:14 -0500, Tom H wrote: > > So after 12+ years of using lilo on my server, I've decided that it might > > be time to upgrade my boot loader. With lilo I'm using the standard serial > > redirect since I'm running a headless box (more specifically it's a guest > > of a VirtualBox host). > > > With Grub2, I've been able to get the standard serial redirect working with > > the following in my /etc/default/grub: > > > GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,9600" > > GRUB_TERMINAL=serial > > GRUB_SERIAL_COMMAND="serial --unit=0 --speed=9600 --word=8 --parity=no > > --stop=1" > > > This works fine once the kernel is booted (it redirects output to my serial > > port). I am not able to see the boot menu with this new configuration > > however - it appears on the "video" portion of the screen, and I'm able to > > select a kernel that way, but the serial ouput gets nothing. With Grub v.1 > > on other machines with serial redirect, I've been able to get the menu. Is > > there some option that I'm missing? > > > Additionally, IIRC, the GRUB_CMDLINE_LINUX option above is conditional, > > meaning that if I want video vs. serial redirection while booting, I need > > to swap the two 'console' directives. Given that there's only one way I > > can specify the linux command line option, how would I go about doing this? > > Here's a WAG: > > Change > GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,9600" > to > GRUB_CMDLINE_LINUX="console=ttyS0,9600" > and run > update-grub > and reboot to see if you have the serial output (and still have the > console output).
Here is mine and I have the same problem as the OP. % cat /etc/default/grub # This file is sourced by update-grub, and its variables are propagated # to its children in /etc/grub.d/ GRUB_DEFAULT=0 GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX="rootdelay=15 console=ttyS0,9600" GRUB_TERMINAL=serial Note the GRUB_CMDLINE_LINUX line, it includes console=ttyS0,9600. Perhaps it is time to file a bug report against grub-pc? -- Matt Zagrabelny - mzagr...@d.umn.edu - (218) 726 8844 University of Minnesota Duluth Information Technology Systems & Services PGP key 4096R/42A00942 2009-12-16 Fingerprint: 5814 2CCE 2383 2991 83FF C899 07E2 BFA8 42A0 0942 He is not a fool who gives up what he cannot keep to gain what he cannot lose. -Jim Elliot
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