summaryrefslogtreecommitdiffstats
path: root/perl-install/loopback.pm
diff options
context:
space:
mode:
Diffstat (limited to 'perl-install/loopback.pm')
-rw-r--r--perl-install/loopback.pm128
1 files changed, 0 insertions, 128 deletions
diff --git a/perl-install/loopback.pm b/perl-install/loopback.pm
deleted file mode 100644
index 817038e36..000000000
--- a/perl-install/loopback.pm
+++ /dev/null
@@ -1,128 +0,0 @@
-package loopback; # $Id$
-
-use diagnostics;
-use strict;
-
-#-######################################################################################
-#- misc imports
-#-######################################################################################
-use MDK::Common::System;
-use common;
-use partition_table qw(:types);
-use fs;
-use fsedit;
-use log;
-
-
-sub carryRootLoopback {
- my ($part) = @_;
- $_->{mntpoint} eq '/' and return 1 foreach @{$part->{loopback} || []};
- 0;
-}
-
-sub check_circular_mounts {
- my ($hd, $part, $all_hds) = @_;
-
- my $fstab = [ fsedit::get_all_fstab($all_hds), $part ]; # no pb if $part is already in $all_hds
-
- my $base_mntpoint = $part->{mntpoint};
- my $check; $check = sub {
- my ($part, @seen) = @_;
- push @seen, $part->{mntpoint} || return;
- @seen > 1 && $part->{mntpoint} eq $base_mntpoint and die _("Circular mounts %s\n", join(", ", @seen));
- if (my $part = fs::up_mount_point($part->{mntpoint}, $fstab)) {
- #- '/' carrier is a special case, it will be mounted first
- $check->($part, @seen) if !carryRootLoopback($part);
- }
- if (isLoopback($part)) {
- $check->($part->{loopback_device}, @seen);
- }
- };
- $check->($part) if !($base_mntpoint eq '/' && isLoopback($part)); #- '/' is a special case, no loop check
-}
-
-sub carryRootCreateSymlink {
- my ($part, $prefix) = @_;
-
- carryRootLoopback($part) or return;
-
- my $mntpoint = "$prefix$part->{mntpoint}";
- unless (-e $mntpoint) {
- eval { mkdir_p(dirname($mntpoint)) };
- #- do non-relative link for install, should be changed to relative link before rebooting
- symlink "/initrd/loopfs", $mntpoint;
-
- mkdir_p("/initrd/loopfs/lnx4win/boot");
- symlink "/initrd/loopfs/lnx4win/boot", "$prefix/boot";
- }
- #- indicate kernel to keep initrd
- mkdir "$prefix/initrd", 0755;
-}
-
-
-sub format_part {
- my ($part, $prefix) = @_;
- fs::mount_part($part->{loopback_device}, $prefix);
- create($part, $prefix);
- fs::real_format_part($part);
-}
-
-sub create {
- my ($part, $prefix) = @_;
- my $f = $part->{device} = "$prefix$part->{loopback_device}{mntpoint}$part->{loopback_file}";
- return if -e $f;
-
- eval { mkdir_p(dirname($f)) };
-
- log::l("creating loopback file $f ($part->{size} sectors)");
-
- local *F;
- my $block_size = 128;
- my $s = "\0" x (512 * $block_size);
- sysopen F, $f, 2 | c::O_CREAT() or die "failed to create loopback file";
- for (my $i = 0; $i < $part->{size}; $i += $block_size) {
- syswrite F, $s or die "failed to create loopback file";
- }
-}
-
-sub getFree {
- my ($dir, $part) = @_;
- my $freespace = $dir ?
- 2 * (MDK::Common::System::df($dir))[1] : #- df in KiB
- $part->{size};
-
- $freespace - sum map { $_->{size} } @{$part->{loopback} || []};
-}
-
-#- returns the size of the loopback file if it already exists
-#- returns -1 is the loopback file can't be used
-sub verifFile {
- my ($dir, $file, $part) = @_;
- -e "$dir$file" and return -s "$dir$file";
-
- $_->{loopback_file} eq $file and return -1 foreach @{$part->{loopback} || []};
-
- undef;
-}
-
-sub prepare_boot {
- my $r = readlink "$::prefix/boot";
- unlink "$::prefix/boot";
- mkdir "$::prefix/boot", 0755;
- [$r, $::prefix];
-}
-
-sub save_boot {
- my ($loop_boot, $prefix) = @{$_[0]};
-
- $loop_boot or return;
-
- my @files = glob_("$prefix/boot/*");
- cp_af(@files, $loop_boot) if @files;
- rm_rf("$prefix/boot");
- symlink $loop_boot, "$prefix/boot";
-}
-
-
-1;
-