sub check_bin {
my ($path) = @_;
-
return -x $path;
}
};
# if something goes wrong, we do not want
- # to give up, but indicate an error has occured
+ # to give up, but indicate an error has occurred
warn "$@\n" if $@;
my $uuids = {
die "No valid block device\n" if index($dev, $block_dev) == -1;
$block_dev = "/dev/$block_dev";
- die "Block device does not exsists\n" if !(-b $block_dev);
+ die "Block device does not exists\n" if !(-b $block_dev);
return $block_dev;
}
my $partition;
- # loop again to detect the real partiton device which does not always follow
+ # loop again to detect the real partition device which does not always follow
# a strict $devname$partition scheme like /dev/nvme0n1 -> /dev/nvme0n1p1
dir_glob_foreach("/sys/block/$devname", qr/\Q$devname\E.*$newpartid/, sub {
my ($part) = @_;
return $partition;
}
-# Wipes all labels and the first 200 MiB of a disk/partition (or the whole if it is smaller).
+my sub strip_dev :prototype($) {
+ my ($devpath) = @_;
+ $devpath =~ s|^/dev/||;
+ return $devpath;
+}
+
+# Check if a disk or any of its partitions has a holder.
+# Can also be called with a partition.
# Expected to be called with a result of verify_blockdev_path().
-sub wipe_blockdev {
+sub has_holder {
+ my ($devpath) = @_;
+
+ my $dev = strip_dev($devpath);
+
+ return $devpath if !dir_is_empty("/sys/class/block/${dev}/holders");
+
+ my $found;
+ dir_glob_foreach("/sys/block/${dev}", "${dev}.+", sub {
+ my ($part) = @_;
+ $found = "/dev/${part}" if !dir_is_empty("/sys/class/block/${part}/holders");
+ });
+
+ return $found;
+}
+
+# Basic check if a disk or any of its partitions is mounted.
+# Can also be called with a partition.
+# Expected to be called with a result of verify_blockdev_path().
+sub is_mounted {
my ($devpath) = @_;
- my $wipefs_cmd = ['wipefs', '--all', $devpath];
+ my $mounted = mounted_blockdevs();
+
+ return $devpath if $mounted->{$devpath};
- my $dd_cmd = ['dd', 'if=/dev/zero', "of=${devpath}", 'bs=1M', 'conv=fdatasync'];
+ my $dev = strip_dev($devpath);
+
+ my $found;
+ dir_glob_foreach("/sys/block/${dev}", "${dev}.+", sub {
+ my ($part) = @_;
+ my $partpath = "/dev/${part}";
+
+ $found = $partpath if $mounted->{$partpath};
+ });
+
+ return $found;
+}
+
+# Wipes all labels and the first 200 MiB of a disk/partition (or the whole if it is smaller).
+# Expected to be called with a result of verify_blockdev_path().
+sub wipe_blockdev {
+ my ($devpath) = @_;
my $devname = basename($devpath);
my $dev_size = PVE::Tools::file_get_contents("/sys/class/block/$devname/size");
my $size = ($dev_size * 512 / 1024 / 1024);
my $count = ($size < 200) ? $size : 200;
- push @{$dd_cmd}, "count=${count}";
+ my $to_wipe = [];
+ dir_glob_foreach("/sys/class/block/${devname}", "${devname}.+", sub {
+ my ($part) = @_;
+ push $to_wipe->@*, "/dev/${part}" if -b "/dev/${part}";
+ });
+
+ if (scalar($to_wipe->@*) > 0) {
+ print "found child partitions to wipe: ". join(', ', $to_wipe->@*) ."\n";
+ }
+ push $to_wipe->@*, $devpath; # put actual device last
+
+ print "wiping block device ${devpath}\n";
- print "wiping disk/partition: ${devpath}\n";
+ run_command(['wipefs', '--all', $to_wipe->@*], errmsg => "error wiping '${devpath}'");
- run_command($wipefs_cmd, errmsg => "error wiping labels for '${devpath}'");
- run_command($dd_cmd, errmsg => "error wiping '${devpath}'");
+ run_command(
+ ['dd', 'if=/dev/zero', "of=${devpath}", 'bs=1M', 'conv=fdatasync', "count=${count}"],
+ errmsg => "error wiping '${devpath}'",
+ );
}
1;