Grub entry "root=/dev/ram0"

[Krister Hallergard]

Pls explain the significance of "root=/dev/ram0" in the Grub command line. I thought this was for Live installations, such as Live CD or Live USB, the root path for a RAM disk.  When making proper installations to the harddisk, I have been changing this to "root=/dev/sdb3" - which is probably wrong (though it works fine).

[rbg]

initial ram disk for initrd...

root=/dev/ram0

    initrd is mounted as root, and the normal boot procedure is followed,
    with the RAM disk mounted as root.

from older documentation: https://www.kernel.org/doc/Documentation/initrd.txt

[Krister Hallergard]

Thanks rbg! Have read, but don't fully understand. Bottom line: should I change back from "root=/dev/sdb3" to "root=/dev/ram0" on my hard disk installation?

[Chih-Wei Huang]

Android root filesystem is always on the ramdisk.
So yes, you should change it back.
Though the parameter may be redundant
since the modern kernel seems to determine it
automatically.

If you want to specify the partition that android-x86 installed,
use ROOT=/dev/sdb3.


--
Chih-Wei
Android-x86 project
http://www.android-x86.org

[Krister Hallergard]

Thank you Chih-Weih!