Le jeudi 24 février 2005 à 09:35 +0100, Féliciano Matias a écrit : > Le mercredi 23 février 2005 à 17:07 +0100, Gildas Bayard a écrit : > > Hello, > > > > First of all, please direct me to an other mailing list if I'm going off > > topic. > > I've investigated a bit the initrd system and there are some questions I > > could no find answers for: > > - why are regular desktop distributions always using the initrd system? > > It's require for "root=LABEL=/" and udev. Ok. I'll look at that deeper. Thanx > > > I understand that this system is mandatory to load exotic scsi drivers > > or add a pause when booting to usb but I wonder why it is always used > > - on kernel 2.4 (red hat 9) the initrd image is an ext2 filesystems. > > For *your* system. My initrd also contain raid0 and dm-mod > (see /sbin/mkinitrd and "man mkinitrd"). No I mean the initrd file is an ext2 filesystem (whatever it contains) On FC3 it is a cpio archive. Why? And why when initrd is a cpio archive it would not load linuxrc? Answers to these question are not in man initrd, man nash... > > > It > > contains a linuxrc nash script. On kernel 2.6 (fedora 3) the initrd is a > > cpio archive and does not contains a linuxrc script. Could someone > > briefly explain me why these differences? Particularly I wondering about > > 3 things: > > 1) I tried to repack my custom initrd ext2 filesystem into a cpio > > archive and found that when packed as a cpio archive it's not executing > > my linuxrc script (is it the way it's supposed to be?) > > use "/init". Well I want to understand why my linuxrc is not run when in a cpio archive and again what the matter with the cpio archive > > > 2) What are the differences between pivot_root and switch_root (new in > > 2.6) ? > > 3) Why using nash in the first place? > > nash is a mini-mini-mini-shell (bash is TTOOOO big). See "man nash". man nash does not explain what is the rational for both pivot_root and switch_root (just give a small description). => Why pivot_root was not enough? => Why not wait until the end of linuxrc to jump to the new root fs? I would like to know how to get in touch with nash coders. On which forum or mailing list could they be hanging on? > > Could we just wait until the end > > of the linuxrc script? At that time the kernel would move to the new > > root fs (whitout the need for pivot_root or switch_root) > > > > And finally, if I'm right the end of the nash script (after switch_root) > > is never executed? > > > > Gildas > > > -- > fedora-devel-list mailing list > fedora-devel-list@xxxxxxxxxx > http://www.redhat.com/mailman/listinfo/fedora-devel-list
