indianajones Posted July 4, 2009 Share Posted July 4, 2009 My vanilla OS X installation booting using Chameleon 2 RC 1 recently started generating EBIOS errors. I did not have the patience to wait for the errors to end, so I booted up using the Boot132 CD and reinstalled Chameleon hoping to fix the problem but it didn't. I finally got the system to boot using Chameleon 1.0.11. Anyway if I boot the system using gparted CD, my 320 GB HDD appears as if it has not partition table! fdisk shows the partition table just fine. By the way the disk uses GPT and has 3 partitions of approx 100GB for Vista, OS X and time machine, apart from the 200 MB efi partition. I used partition inspector to take a look at the disk under OS X, and I really dont understand what's going on! Here's the output that partition inspector generated: *** Report for internal hard disk *** Current GPT partition table: # Start LBA End LBA Type 1 40 409639 EFI System (FAT) 2 411648 210126847 Basic Data 3 210126848 399059271 Mac OS X HFS+ 4 399321416 624880263 Mac OS X HFS+ 29 231928234039 223338299445 Unknown 30 94489280535 85899345941 Unknown 31 309237645383 317827579977 Unknown 32 446676598887 455266533481 Unknown 33 -3349566512254860991 -1470806862189064959 Unknown 37 3703647710060950340 3714118939114615666 Unknown 38 -2358946984455489768 -5821022831261552400 Unknown 39 3681185880636863232 -5180540670545349771 Unknown 40 -7563241916007373440 5641090947900982015 Unknown 41 3837125389456192798 3852266527863354712 Unknown 42 -243829869600452 8160024711430765117 Unknown 43 8518600717369868543 -3442799362248770248 Unknown 44 5277422716846928622 -6629300586401668291 Unknown 45 -2753259483480076967 -382620294389523114 Unknown 46 8561927199939510814 -548062747286882804 Unknown 47 -6701070241491642376 725360940058377066 Unknown 48 2944784480191247364 -9084357477985610749 Unknown 49 8316347104629196471 3588156590036107374 Unknown 50 825376651715977113 259871811189105843 Unknown 51 -4795691164570338352 -3149530964277021053 Unknown 52 -4885726667102486196 8213591853740281117 Unknown 57 7998692031624803163 -3809311798876467908 Unknown 58 -694246896635314436 -454858637006513324 Unknown 59 -891530541826622330 -4613060700646905964 Unknown 60 -5553120120306954607 -4647205833932570629 Unknown 61 8088895325074895978 -8285593310133690555 Unknown 62 -621449669685056603 -8396385451397162836 Unknown 63 8466749242540950999 -8723471071445783677 Unknown 64 7666354348726247010 4279804148051844240 Unknown 65 622501911909195065 12955023348005969 Unknown 66 1513284030951735479 8309616086822341039 Unknown 67 -3795945383609140113 6281399450571887755 Unknown 68 5876384153127048269 166636520331964127 Unknown 69 -7818745808679434832 -121501475998305802 Unknown 70 -5175280942768411579 8671224187160949644 Unknown 71 7839228748177763461 4600075691912693801 Unknown 72 7022471993751981060 5479031450466523158 Unknown 73 -8825741227249886144 3154924594409800589 Unknown 74 -9221367991718417343 -6691574458321675488 Unknown 75 1757804454335347720 -4543031613497339962 Unknown 76 7332261806561641438 -5229751731631737074 Unknown 77 7094135629326793907 -1721782074713557961 Unknown 78 5011666236217813257 -8788676344233386957 Unknown 79 -644828055411009961 18953761156030985 Unknown 80 -3441681602502540867 -3146594987985125128 Unknown 81 5464164206001502711 403267716621198000 Unknown 82 1360568058034840774 1192447814733713149 Unknown 83 -9220798708043907005 -8329209367474239176 Unknown 84 348600413698473428 6669178092690892813 Unknown 85 8496301438391084055 3665830169854017941 Unknown 86 -8796014754157017413 -4065394392874922152 Unknown 87 6025109874258783464 3356091732487058782 Unknown 88 -8709731592735222024 1906456578617339016 Unknown 89 -1775615130575775884 2764737360940732984 Unknown 90 851828012884016500 -520816101665917771 Unknown 91 5902009381980342799 6476796024137893003 Unknown 92 -6316516925580867980 3770078348147642712 Unknown 93 -3370983100237149059 -4988479176261413762 Unknown 94 -4090617060757603191 8513761846253662580 Unknown 95 -6418798327552867069 5961708052847072291 Unknown 96 7499835346667074782 -642128650756478586 Unknown 97 -8106425619868723557 3374235155286037647 Unknown 98 4918686917169823861 7689393940676359181 Unknown 99 3634119242794224413 -215253748383435096 Unknown 100 -2961991093584881158 3882742697306122231 Unknown 101 -8643479727043736847 -9171068048603789561 Unknown 102 -5305933340764270264 -7951098234903723414 Unknown 103 -719299392501162695 -2607770495257075611 Unknown 104 -2740609525472645841 -2931753081246773654 Unknown 105 -2527192936714048789 -7186459017863145331 Unknown 106 5226649460481723787 8661954058520464192 Unknown 107 594759171477768452 74720415879461893 Unknown 108 3498380840835647752 8493724116419752329 Unknown 109 7371326395313832462 -6182083719248686259 Unknown 110 6721845852533404678 -2881409449856638591 Unknown 111 5241441594208094178 6212395794435633008 Unknown 112 1094174320305831105 -3777896495990491357 Unknown 113 1097593937079647083 -3146940597508770446 Unknown 114 2050943151542224757 -1000305398547190048 Unknown 115 8245922269094102505 234698601335017328 Unknown 116 4489177098307346491 2306749487951799308 Unknown 117 -4104278143965640907 9010242707728706843 Unknown 118 2464421359428389226 6592014126598904704 Unknown 119 -8338241162626890488 4621621110677551808 Unknown 120 7648888344280402883 2707514163281224764 Unknown 121 -6430576324177615579 223451610277680639 Unknown 122 -4513908917364060225 8676625944138610619 Unknown 123 1476597541411113352 8509625122645225603 Unknown 124 2144039807282183867 6050693193333540491 Unknown 125 6842164490465714755 57320520421934539 Unknown 126 -5617659953669214985 295008249848007129 Unknown 127 110414603400949325 569396002817028 Unknown 128 8240516612986371880 8103358281313837936 Unknown Current MBR partition table: # A Start LBA End LBA Type 1 1 409639 ee EFI Protective 2 411648 210126847 0b FAT32 3 * 210126848 399059271 af Mac OS X HFS+ 4 399321416 624880263 af Mac OS X HFS+ MBR contents: Boot Code: Unknown, but bootable Partition at LBA 40: Boot Code: None File System: Unknown Listed in GPT as partition 1, type EFI System (FAT) Partition at LBA 411648: Boot Code: Windows BOOTMGR (Vista) File System: NTFS Listed in GPT as partition 2, type Basic Data Listed in MBR as partition 2, type 0b FAT32 Partition at LBA 210126848: Boot Code: Unknown, but bootable File System: HFS Extended (HFS+) Listed in GPT as partition 3, type Mac OS X HFS+ Listed in MBR as partition 3, type af Mac OS X HFS+, active Partition at LBA 399321416: Boot Code: None File System: HFS Extended (HFS+) Listed in GPT as partition 4, type Mac OS X HFS+ Listed in MBR as partition 4, type af Mac OS X HFS+ Partition at LBA 231928234039: Could somebody help me understand why I have a bunch of unknown partitions and how do I fix the partition table if the partitions appearing after the 4th partition are {censored}. Thanks, and happy 4th! Link to comment https://www.insanelymac.com/forum/topic/173536-gpt-partition-table-snafud/ Share on other sites More sharing options...
SpinozaQ Posted August 24, 2009 Share Posted August 24, 2009 Could somebody help me understand why I have a bunch of unknown partitions and how do I fix the partition table if the partitions appearing after the 4th partition are {censored}. Thanks, and happy 4th! I'm surprised no one answered this yet.... There is nothing wrong with your partitions, or that output. GPT partitioning specifies 128 "blocks" for partitions to be defined. On a typical mac you only use 3 or 4 of them. So many programs (stupidly) print out the others as 'unknown'. That doesn't mean there is anything wrong. http://en.wikipedia.org/wiki/GUID_Partition_Table Link to comment https://www.insanelymac.com/forum/topic/173536-gpt-partition-table-snafud/#findComment-1233988 Share on other sites More sharing options...
srs5694 Posted August 24, 2009 Share Posted August 24, 2009 Actually, there probably is something wrong with the GPT partitions. The start and end values of unused entries are normally 0, and the fact that the partition inspector tool (I'm not familiar with it, though) printed out bogus data for entries 29-128 but not for the unused 5-28 suggests that something clobbered the final 100 GPT entries. This would in turn corrupt the CRC checks on the main GPT table. I don't recall precisely what different OSes do when they see this sort of damage, but indianajones's observation that the "320 GB HDD appears as if it has not partition table" is one possible result. Given the date of the original post (over a month ago), this advice may be too late, but: You could try my GPT fdisk program. If I'm right, you should be able to use its option to load the backup partition table in place of the corrupt main partition table. (This is the 'c' option on the experts' menu.) If this seems to work, then saving the partition table (via 'w') should correct the problem. If you're still suffering from this problem, then I'd be very interested to hear if this works -- I designed GPT fdisk's recovery features to help in precisely this sort of situation, but it's relatively untested in the real world. I realize you may well have found another solution by now, though. As a broader matter, there's the question of how your GPT table got damaged. It could be a virus or a GPT-unaware boot loader or disk utility tried to write data into an area of the disk that's normally unused on MBR disks. Because of the virus possibility, I recommend you run a virus check on your system. (OTOH, if it is a virus, it's probably a fairly old DOS or Windows one, which seems improbable on a Mac-only computer.) Edit: After posting I noticed the Vista partition; I must have overlooked that initially. This increases the possibility of a virus causing the problem. Link to comment https://www.insanelymac.com/forum/topic/173536-gpt-partition-table-snafud/#findComment-1234381 Share on other sites More sharing options...
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