diff options
Diffstat (limited to 'perl-install/partition_table_raw.pm')
| -rw-r--r-- | perl-install/partition_table_raw.pm | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/perl-install/partition_table_raw.pm b/perl-install/partition_table_raw.pm deleted file mode 100644 index 733970a4e..000000000 --- a/perl-install/partition_table_raw.pm +++ /dev/null @@ -1,157 +0,0 @@ -package partition_table_raw; # $Id$ - -use diagnostics; -use strict; - -use common; -use devices; -use log; -use c; - -my @MBR_signatures = ( -if_(arch() =~ /ppc/, - map { [ 'yaboot', 0, "PM", 0x200 * $_ + 0x10, "bootstrap\0" ] } 0 .. 61 -), - [ 'empty', 0, "\0\0\0\0" ], - [ 'grub', 0, "\xEBG", 0x17d, "stage1 \0" ], - [ 'grub', 0, "\xEBH", 0x17e, "stage1 \0" ], - [ 'grub', 0, "\xEBH", 0x18a, "stage1 \0" ], - [ 'grub', 0, "\xEBH", 0x181, "GRUB \0" ], - [ 'lilo', 0x2, "LILO" ], - [ 'lilo', 0x6, "LILO" ], - [ 'osbs', 0x2, "OSBS" ], #- http://www.prz.tu-berlin.de/~wolf/os-bs.html - [ 'pqmagic', 0xef, "PQV" ], - [ 'BootStar', 0x130, "BootStar:" ], - [ 'DocsBoot', 0x148, 'DocsBoot' ], - [ 'system_commander', 0x1ad, "SYSCMNDRSYS" ], - [ 'Be Os', 0x24, 'Boot Manager' ], - [ 'TimO', 0, 'IBM Thinkpad hibernation partition' ], - [ 'dos', 0xa0, "\x25\x03\x4E\x02\xCD\x13" ], - [ 'dos', 0xa0, "\x00\xB4\x08\xCD\x13\x72" ], #- nt2k's - [ 'dos', 0x60, "\xBB\x00\x7C\xB8\x01\x02\x57\xCD\x13\x5F\x73\x0C\x33\xC0\xCD\x13" ], #- nt's - [ 'dos', 0x70, "\x0C\x33\xC0\xCD\x13\x4F\x75\xED\xBE\xA3" ], - [ 'freebsd', 0xC0, "\x00\x30\xE4\xCD\x16\xCD\x19\xBB\x07\x00\xB4" ], - [ 'freebsd', 0x160, "\x6A\x10\x89\xE6\x48\x80\xCC\x40\xCD\x13" ], - [ 'dummy', 0xAC, "\x0E\xB3\x07\x56\xCD\x10\x5E\xEB" ], #- caldera? - [ 'ranish', 0x100, "\x6A\x10\xB4\x42\x8B\xF4\xCD\x13\x8B\xE5\x73" ], - [ 'os2', 0x1c2, "\xA" ], -); - -sub typeOfMBR($) { typeFromMagic(devices::make($_[0]), @MBR_signatures) } -sub typeOfMBR_($) { typeFromMagic($_[0], @MBR_signatures) } - -sub hasExtended { 0 } - -sub cylinder_size($) { - my ($hd) = @_; - $hd->{geom}{sectors} * $hd->{geom}{heads}; -} - -#- default method for starting a partition, only head size or twice -#- is allowed for starting a partition after a cylinder boundarie. -sub adjustStart($$) { - my ($hd, $part) = @_; - my $end = $part->{start} + $part->{size}; - - $part->{start} = round_up($part->{start}, - $part->{start} % cylinder_size($hd) < 2 * $hd->{geom}{sectors} ? - $hd->{geom}{sectors} : cylinder_size($hd)); - $part->{size} = $end - $part->{start}; - $part->{size} > 0 or die "adjustStart get a too small partition to handle correctly"; -} -#- adjusting end to match a cylinder boundary, two methods are used and must -#- match at the end, else something is wrong and nothing will be done on -#- partition table. -#- $end2 is computed by removing 2 (or only 1 if only 2 heads on drive) groups -#- of sectors, this is necessary to handle extended partition where logical -#- partition start after 1 (or 2 accepted) groups of sectors (typically 63). -#- $end is floating (is not on cylinder boudary) so we have to choice a good -#- candidate, $end1 or $end2 should always be good except $end1 for small -#- partition size. -sub adjustEnd($$) { - my ($hd, $part) = @_; - my $end = $part->{start} + $part->{size}; - my $end1 = round_down($end, cylinder_size($hd)); - my $end2 = round_up($end - ($hd->{geom}{heads} > 2 ? 2 : 1) * $hd->{geom}{sectors}, cylinder_size($hd)); - $end2 <= $hd->{geom}{cylinders} * cylinder_size($hd) or die "adjustEnd go beyond end of device geometry ($end2 > $hd->{totalsectors})"; - $part->{size} = ($end1 - $part->{start} > cylinder_size($hd) ? $end1 : $end2) - $part->{start}; - $part->{size} > 0 or die "adjustEnd get a too small partition to handle correctly"; -} - -sub get_geometry($) { - my ($dev) = @_; - my $g = ""; - - local *F; sysopen F, $dev, 0 or return; - ioctl(F, c::HDIO_GETGEO(), $g) or return; - my %geom; @geom{qw(heads sectors cylinders start)} = unpack "CCSL", $g; - $geom{totalcylinders} = $geom{cylinders}; - - #- $geom{cylinders} is no good (only a ushort, that means less than 2^16 => at best 512MB) - if (my $total = c::total_sectors(fileno F)) { - $geom{cylinders} = int $total / $geom{heads} / $geom{sectors}; - } - - { geom => \%geom, totalsectors => $geom{heads} * $geom{sectors} * $geom{cylinders} }; -} - -sub openit($$;$) { sysopen $_[1], $_[0]{file}, $_[2] || 0; } - -# cause kernel to re-read partition table -sub kernel_read($) { - my ($hd) = @_; - common::sync(); - local *F; openit($hd, *F) or return 0; - common::sync(); sleep(1); - $hd->{rebootNeeded} = !ioctl(F, c::BLKRRPART(), 0); - common::sync(); - close F; - common::sync(); sleep(1); -} - -sub zero_MBR { - my ($hd) = @_; - #- force the standard partition type for the architecture - my $type = arch() eq "alpha" ? "bsd" : arch() =~ /^sparc/ ? "sun" : arch() eq "ppc" ? "mac" : "dos"; - require("partition_table_$type.pm"); - bless $hd, "partition_table_$type"; - $hd->{primary} = $hd->clear_raw(); - delete $hd->{extended}; -} - -sub zero_MBR_and_dirty { - my ($hd) = @_; - zero_MBR($hd); - $hd->{isDirty} = $hd->{needKernelReread} = 1; - -} - -#- ugly stuff needed mainly for Western Digital IDE drives -#- try writing what we've just read, yells if it fails -#- testing on last sector of head #0 (unused in 99% cases) -sub test_for_bad_drives { - my ($hd) = @_; - - log::l("test_for_bad_drives($hd->{file})"); - my $sector = $hd->{geom}{sectors} - 1; - - - local *F; openit($hd, *F, 2) or die "error opening device $hd->{device} for writing"; - - my $seek = sub { - c::lseek_sector(fileno(F), $sector, 0) or die "seeking to sector $sector failed"; - }; - my $tmp; - - &$seek; sysread F, $tmp, $SECTORSIZE or die "test_for_bad_drives: can't even read ($!)"; - &$seek; syswrite F, $tmp or die "test_for_bad_drives: can't even write ($!)"; - - my $tmp2; - &$seek; sysread F, $tmp2, $SECTORSIZE or die "test_for_bad_drives: can't even read again ($!)"; - $tmp eq $tmp2 or die -_("Something bad is happening on your drive. -A test to check the integrity of data has failed. -It means writing anything on the disk will end up with random trash"); -} - -1; |