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Old 11-11-2009, 04:10 AM   #1
kumars.nitin123
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Registered: Jun 2009
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Distribution: CentOS 5.3
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CentOS: How to set font size/ resolution on main console


Hi All,
I use CentOS and i need to set resolution or font size so that i can see more lines of logs at a time on the main console of my CentOS box.

Thanks,
 
Old 11-11-2009, 08:02 AM   #2
arizonagroovejet
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What do you mean by 'main console'? Are you talk about a screen where you just see some white text on back with something like

Code:
CentOS blah blah

mymachine login:
If so you need to play around with the vga option passed to the kernel in the grub config. The grub config is probably at /boot/grub/menu.lst I use vga=0x31a. For a list of available modes use

Code:
$ hwinfo --framebuffer
 
Old 11-11-2009, 11:47 PM   #3
kumars.nitin123
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Registered: Jun 2009
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Yes, i meant by the same thing u replied for.

cat /boot/grub/menu.lst shows :

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/hda2
# initrd /initrd-version.img
#boot=/dev/hda1
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-8.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/
initrd /initrd-2.6.18-8.el5.img

And,
hwinfo --framebuffer shows:
-bash: hwinfo: command not found
 
Old 11-12-2009, 07:02 AM   #4
arizonagroovejet
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hwinfo is probably available in your repositories but it's not essential, it just gives you a list of what modes your card supports. You can just try codes to see if they work.


You need to modify the kernel line like so
Code:
kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/ vga=0x31A
That will set the resolution to 1280x1024. For a list of possible vga codes see http://wiki.antlinux.com/pmwiki.php?n=HowTos.VgaModes
 
  


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