Caldera Network Desktop 1.0/caldera-network-desktop-1.0.bin/images/ramdisk2-beta.img/usr/lib/perl/fdisk

Text File | 1995-12-04 | 5.0 KB | 209 lines

# Handles partitioning disks

sub get_partitions {
    local ($type) = @_;
    local ($bsdtype, $parttype);
    local ($device, $start, $stop, $blocks, %partinfo, $lastbsddev);

    $type eq "swap" && ($bsdtype = "swap", $parttype = "Linux swap");
    $type eq "ext2" && ($bsdtype = "ext2", $parttype = "Linux native");

    open(SAVEERR, ">&STDERR");
    open(STDERR, ">/dev/null");
    open(PROC, "fdisk -l |") || die "Can't call fdisk!";
    while (<PROC>) {
    if (/^\/dev\/([a-z0-9]+) *([0-9]+) *[0-9]+ *([0-9]+) *([0-9]+).*$parttype/) {
        $device = "/dev/$1";
        $start = $2;
        $stop = $3;
        $blocks = $4;
        $partinfo{$device} = "$start $stop $blocks";
    } elsif (/^BSD label for device: *\/dev\/([a-z0-9]+)/) {
        $lastbsddev = $1;
        } elsif (/([a-z]): +([0-9]+) +([0-9]+) *$bsdtype/) {
        $device = ord($1) - ord("a") + 1;
        $device = "/dev/$lastbsddev$device";
        $start = $3;
        $blocks = $2;
        $stop = $start + $blocks;
        $partinfo{$device} = "$start $stop $blocks";
    }
    }

    close PROC;
    open(STDERR, ">&SAVEERR");

    return %partinfo;
}

sub partition_disks {
    local ( $ret );

    if (! &rhs_yesno ( "Disk Partitions",
<<EOM
You must have one or more free partitions for your
Linux filesystem.  In addition, you may want to create
a swap partition.  If you have already created partitions
for your new Linux system you can skip this step.
>
Do you need to partition your disks?
>
EOM
              , 70)) {
    return 1;
    }

    if ($instarch eq "i386") {
    if (! &rhs_yesno ( "Disk Partitions",
<<EOM
>
If you will be using OS/2 on your system in addition
to Linux, you must use the OS/2 partitioning
software.  OS/2 will not recognize partitions created
by the Linux partitioning software.
>
If you have not done this, choose the Reboot option,
partition your drives with the OS/2 software, and
restart the Red Hat installation.
>
Continue?
>
EOM
                  , 70)) {
        return 0;
        }
    }

    if ($instarch eq "i386") {
        &rhs_msgbox ( "Disk Partitions",
<<EOM
>
Each partition used for the Linux filesystem must be set as
type 83. Each partition used for a Linux swap partition
must be set as type 82.
>
EOM
             , 70);
    } else {
        &rhs_msgbox ( "Disk Partitions",
<<EOM
>
There are two styles of disk partitioning available. The first
is PC style partitioning, which is done with fdisk. If you are
using the ARC firmware, you must use this.

BSD style disk labeling is also available. You may manipulate
disk labels with fdisk by typing 'b<Enter>' as the first command
in fdisk. Another program, minlabel, also allows you to use
disk labels.
>
EOM
             , 70);
    }

    &_partition_disks;
}

sub _partition_disks {
    local ( $ret, $snarf, $disklist, $diskinfolist, $msg, $ent );
    local ( @choices );

    $ret = &rhs_infobox ( "Disk Partitioning",
<<EOM
>
Discovering what hard drives are attached to the system...
>
EOM
                        , 70);

    @disklist = ();
    @diskinfolist = ();
    open(SAVEERR, ">&STDERR");
    open(STDERR, ">/dev/null");
    open(PROC, "fdisk -l |") || &newdie("Can't call fdisk!");
    while (<PROC>) {
        if (/^Disk (.*):(.*)$/) {
            $disklist[@disklist] = $1;
            $diskinfolist[@diskinfolist] = "$1:$2";
    } elsif (/^BSD label for device: *\/dev\/([a-z0-9]+)/) {
        $disklist[@disklist] = "/dev/$1";
            $diskinfolist[@diskinfolist] = "/dev/$1:hard disk";
    }
    }
    close PROC;
    open(STDERR, ">&SAVEERR");

    $msg =
<<EOM
The following disks were found:
>
EOM
    ;
    foreach $ent (@diskinfolist) {
        $msg .= ">" . $ent . "\n";
    }

    if ($instarch eq "i386") {
    @choices = ("fdisk", "Partition a disk with fdisk (command line)",
                "cfdisk", "Partition a disk with cfdisk (full screen)");
    } else {
    @choices = ("fdisk", "Partition a disk with fdisk",
                "minlabel", "Partition a disk with minlabel");
    }

    while (1) {
        if (! &rhs_menu("Disk Partitioning", $msg,
            70, (($#choices + 1) / 2) + 1,
            @choices,
            "done", "Done with partitioning")) {
        last;
    }
    last if ($dialog_result eq "done");
        &partition_disk ("fdisk", @disklist) if ($dialog_result eq "fdisk");
        &partition_disk ("cfdisk", @disklist) if ($dialog_result eq "cfdisk");
        &partition_disk ("minlabel", @disklist) if ($dialog_result eq "minlabel");
    }

    &rhs_menu("Disk Partitioning",
<<EOM
>
If fdisk (or cfdisk) complained about not being able
to reload the partition tables or you are using disk
labeling, you should reinstall now.
>
After rebooting skip the partitioning step and continue
with the rest of the installation.
>
EOM
          , 70, 2,
          "Reboot", "Reboot now",
          "Continue", "Continue the install process");

    exit(0) if ($dialog_result eq "Reboot");

    return 1;
}

sub partition_disk {
    local ( $fdisk, @disklist ) = @_;
    local ( $ret );

    if (! &rhs_menul ( "Disk Partitioning",
<<EOM
>
Which disk do you want to partition?
>
EOM
              , 50, scalar(@disklist), @disklist)) {
    return 1;
    }

    &invoke("$fdisk $dialog_result");

    print "\nHit enter to continue";
    <STDIN>;
}

############
1;