From a0765cf97145b9a1e989310e2b82f1b11330c3fe Mon Sep 17 00:00:00 2001 From: freesource Date: Wed, 9 Jan 2002 18:40:19 +0000 Subject: [PATCH] Indicating the difference between a kernel only boot disk and 2 disk compression in FAQ 13. --- doc/html/index.html | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/doc/html/index.html b/doc/html/index.html index de38617..261d76a 100644 --- a/doc/html/index.html +++ b/doc/html/index.html @@ -3,7 +3,7 @@ -
$Id: index.html,v 1.65 2002/01/07 19:24:44 freesource Exp $
+
$Id: index.html,v 1.66 2002/01/07 19:27:21 freesource Exp $

@@ -1104,13 +1104,20 @@ filesystem.

-If you are creating a single boot disk in which the kernel knows where to +If you are creating a boot disk in which the kernel knows where to find the root filesystem, then nothing else but a kernel is required assuming it is copied in a way that is starts at block 0 on the device -media.   -However, in order to boot /dev/fd0 from /dev/fd0 the kernel has to +media, and then rdeved in such a way that it knows that the ramdisk and the +prompt +flag are on, i.e., rdev -r /dev/fd0 49152, and that the root filesystem starts +at block +0 on the other floppy.   +However, the 2 disk compression method just copies over the root filesystem +to the second disk.  In order to boot /dev/fd0 from /dev/fd0 when +the root +filesystem is just copied over, the kernel has to mount the initial boot disk, and then after the new root disk is inserted, -it remounts that disk.  In order to accomplish this, an initrd is +it remounts that disk.  In order to accomplish this an initrd is required.   Initial ram disks are essentially mini filesystems with the bare necessities to allow a special init type file called linuxrc to @@ -1137,7 +1144,10 @@ distribution or derivative of one.   The advantage of a two disk boot/root system is related to the fact that modern kernels are themselves quite -large, leaving very little room for a root filesystem.   +large, leaving very little room for a root filesystem, but at the same +time it is convenient to have a boot loader like lilo because it allows +you to boot other root filesystems which is useful in emergency +situations.   The present ABS (boot section) is descended from some pretty old historic code from the original bootroot and is due