Booting a linux kernel in vesa framebuffer mode

Useful when you want to run graphic apps using FB instead of X (like qemu.)

Add vga=0xnnn to the kernel boot options. The valid modes are listed in linux/Documentation/fb/vesafb.txt.

    | 640x480  800x600  1024x768 1280x1024
----+-------------------------------------
256 |  0x301    0x303    0x305    0x307  
32k |  0x310    0x313    0x316    0x319  
64k |  0x311    0x314    0x317    0x31A  
16M |  0x312    0x315    0x318    0x31B  

Linux filesystem cloning

Using rsync. The resulting filesystem booted but didn't allow logging in, probably some permissions or ownership info got lost in translation:

http://www.seismo.ethz.ch/linux/rsync.html



Using nc and tar, didn't work out too well (it was interrupted by 'unexpected EOF' messages):

http://wiki.clug.org.za/wiki/How_do_I_clone_my_disks_with_Linux%3F




Using dump and ssh. This one does the trick:

http://tldp.org/linuxfocus/English/Archives/lf-2005_03-0370.pdf

Summarizing:

mount /dev/xxx /mnt
cd /mnt
ssh sourcePC 'dump −0 −f − /' | restore −r −f −