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Description of how a Boot/Root set is made code-wise has been added.

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freesource 2001-10-06 06:07:33 +00:00
parent b9fa3919cb
commit 89f978739b
1 changed files with 59 additions and 33 deletions
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gbootroot
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@ -306,6 +306,32 @@ my ($filesystem_size, $root_device_size);
# export ars and it can capture these values # export ars and it can capture these values
my $ars = {}; # anonymous hash my $ars = {}; # anonymous hash
# How the Boot/Root set is constructed for the 2 disk compression method:
#
# 1. submit() start the process.
# 2. kernel_moudles() sets the $kernel_version.
# 3. lilo() is called.
# 4. $ok determines what functions should be called for creating the
# Boot disk.
# 5. If initrd hasn't been created yet then initrd is called, and then
# mtab(0=Boot) .. otherwise only mtab is called. If initrd is called,
# then it in turn calls initrd_size to check the size of everything going
# into the initrd, so that the initrd can be made as small as possible.
# 6. mtab determines which dialog to present to the user and then calls
# mtab_window with the numeric value determing whether to make a Boot or
# Root disk. 0=Boot 1=Root
# 7. mtab_window (prompts the user) and then calls mtab_check.
# 8. mtab_check checks whether the device is already mounted or not, and will
# keep prompting the user until either the device is umounted or a disk is
# inserted. Then it will mke2fs the block device and then it will call
# lilo_put_it_together if 0, or device2() if 1.
# 9. lilo_put_it_together puts together the initrd and necessary things to get
# lilo to work properly, and then runs lilo if the device is bootable.
# If the devel device is not the same as the boot device lilo will be
# skipped. Then mtab(1) is called.
#10. The filesystem for the Root device is made, and then device2 is called
# to copy over the root filesystem.
# My own creation - the roots touch the ground if three lines are added. # My own creation - the roots touch the ground if three lines are added.
my @xpm_data = ( my @xpm_data = (
"32 45 3 1", "32 45 3 1",
@ -3306,44 +3332,44 @@ sub mtab_check {
mtab_window($dialog,$error,$count) if $error == 0; mtab_window($dialog,$error,$count) if $error == 0;
# Make sure the drive and storage medium are accessible # Make sure the drive and storage medium are accessible
# Keep asking until they are. # Keep asking until they are.
if ($error == 1) { if ($error == 1) {
destroy $mtab; destroy $mtab;
# $size has to be determined by boot disk or root disk # $size has to be determined by boot disk or root disk
# ROOT_DEVICE - test with a loop device # ROOT_DEVICE - test with a loop device
if ($count == 1) { if ($count == 1) {
sys("mke2fs -F -m0 -i8192 $entry_advanced[3] $root_device_size"); sys("mke2fs -F -m0 -i8192 $entry_advanced[3] $root_device_size");
} }
# BOOT_DEVICE # BOOT_DEVICE
elsif ($count == 0) { elsif ($count == 0) {
sys("mke2fs -F -m0 -i8192 $entry_advanced[0] $container[SIZE]"); sys("mke2fs -F -m0 -i8192 $entry_advanced[0] $container[SIZE]");
} }
if ($? != 0) { if ($? != 0) {
$dialog = "gBootRoot: ERROR: You need to insert a disk\n"; $dialog = "gBootRoot: ERROR: You need to insert a disk\n";
mtab_window($dialog,$error,$count); mtab_window($dialog,$error,$count);
return; return;
} }
# ROOT_DEVICE # ROOT_DEVICE
if ($count == 1) { if ($count == 1) {
return if errm(sys("mount -t ext2 $entry_advanced[3] $mnt")) == 2; return if errm(sys("mount -t ext2 $entry_advanced[3] $mnt")) == 2;
} }
# BOOT_DEVICE # BOOT_DEVICE
elsif ($count == 0) { elsif ($count == 0) {
return if errm(sys("mount -t ext2 $entry_advanced[0] $mnt")) == 2; return if errm(sys("mount -t ext2 $entry_advanced[0] $mnt")) == 2;
} }
lilo_put_it_together() if $count == 0; # mtab(1) runs from here lilo_put_it_together() if $count == 0; # mtab(1) runs from here
device2() if $count == 1; device2() if $count == 1;
} # if $error == 1 } # if $error == 1
} # end sub mtab_check } # end sub mtab_check