Stephen Williams wrote:
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Sean Chang wrote: | Hi Stephen, | | |>I did a few basic tests. This simply does not work. All I get is: |> |>~ => fatls ace 0 |>~ ** Partition 1 not valid on device 0 ** |> |>~ ** Unable to use ace 0:1 for fatls ** |> |>get_partition_info simply doesn't work on any CompactFlash cards |>that I tried. Have you seen any different? I tried a disk that was |>"formatted at the factory" and disks that I partitioned via fdisk. |>Even though Linux has no trouble with any of these, and fatls |>works without your patch, get_partition_info doesn't work. |> | | | hum, without the patch nothing works for me. I was able to use the fat | commands fine with the CompactFlash card that I tried. Perhaps you | could forward me a copy of the disk image for the CompactFlash card that | fails. Also, can you tell me what type of CompactFlash card you have | (e.g. size) and what is your board environment (e.g. processor). Just | trying to gather more information to figure out what is going wrong.
The board (Picture Elements JSE) is a PPC405GPr with a SystemACE attached to a compact flash socket. I've tested your patch with an off-the-shelf SanDisk 64MB CompactFlash card, and also with a card repartitioned (on my Linux workstation) with fdisk to have two primary partitions.
Without your patch, I can list the fat partition (which is the first partition) and load files from it just fine. With your patch, I get the error above and nothing works.
Here is a raw dump of the partition table (via fdisk) for an off-the-shelf disk, followed by a similar dump for a repartitioned disk.
Off the shelf...
Expert command (m for help): d Device: /dev/sdb 0x000: FA 33 C0 8E D0 BC 00 7C 8B F4 50 07 50 1F FB FC 0x010: BF 00 06 B9 00 01 F2 A5 EA 1D 06 00 00 BE BE 07 0x020: B3 04 80 3C 80 74 0E 80 3C 00 75 1C 83 C6 10 FE 0x030: CB 75 EF CD 18 8B 14 8B 4C 02 8B EE 83 C6 10 FE 0x040: CB 74 1A 80 3C 00 74 F4 BE 8B 06 AC 3C 00 74 0B 0x050: 56 BB 07 00 B4 0E CD 10 5E EB F0 EB FE BF 05 00 0x060: BB 00 7C B8 01 02 57 CD 13 5F 73 0C 33 C0 CD 13 0x070: 4F 75 ED BE A3 06 EB D3 BE C2 06 BF FE 7D 81 3D 0x080: 55 AA 75 C7 8B F5 EA 00 7C 00 00 49 6E 76 61 6C 0x090: 69 64 20 70 61 72 74 69 74 69 6F 6E 20 74 61 62 0x0A0: 6C 65 00 45 72 72 6F 72 20 6C 6F 61 64 69 6E 67 0x0B0: 20 6F 70 65 72 61 74 69 6E 67 20 73 79 73 74 65 0x0C0: 6D 00 4D 69 73 73 69 6E 67 20 6F 70 65 72 61 74 0x0D0: 69 6E 67 20 73 79 73 74 65 6D 00 00 00 00 00 00 0x0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 01 0x1C0: 01 00 06 07 60 E8 20 00 00 00 E0 E8 01 00 00 00 0x1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 AA
Repartitioned to have two primary partitions...
Expert command (m for help): d Device: /dev/sdb 0x000: FA 33 C0 8E D0 BC 00 7C 8B F4 50 07 50 1F FB FC 0x010: BF 00 06 B9 00 01 F2 A5 EA 1D 06 00 00 BE BE 07 0x020: B3 04 80 3C 80 74 0E 80 3C 00 75 1C 83 C6 10 FE 0x030: CB 75 EF CD 18 8B 14 8B 4C 02 8B EE 83 C6 10 FE 0x040: CB 74 1A 80 3C 00 74 F4 BE 8B 06 AC 3C 00 74 0B 0x050: 56 BB 07 00 B4 0E CD 10 5E EB F0 EB FE BF 05 00 0x060: BB 00 7C B8 01 02 57 CD 13 5F 73 0C 33 C0 CD 13 0x070: 4F 75 ED BE A3 06 EB D3 BE C2 06 BF FE 7D 81 3D 0x080: 55 AA 75 C7 8B F5 EA 00 7C 00 00 49 6E 76 61 6C 0x090: 69 64 20 70 61 72 74 69 74 69 6F 6E 20 74 61 62 0x0A0: 6C 65 00 45 72 72 6F 72 20 6C 6F 61 64 69 6E 67 0x0B0: 20 6F 70 65 72 61 74 69 6E 67 20 73 79 73 74 65 0x0C0: 6D 00 4D 69 73 73 69 6E 67 20 6F 70 65 72 61 74 0x0D0: 69 6E 67 20 73 79 73 74 65 6D 00 00 00 00 00 00 0x0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 0x1C0: 01 00 06 07 20 40 20 00 00 00 E0 40 00 00 00 00 0x1D0: 01 41 83 07 60 E9 00 41 00 00 00 A9 01 00 00 00 0x1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 AA
I was able to return from the get_partition_info function without problem by using your partition table. Stephen, if time permits could you find out why the condition:
if ((pt->sys_ind != 0) && (part_num == which_part) && (is_extended(pt->sys_ind) == 0))
was not true (I assumed this since this is the only place where it will return a valid value).
Anyone who also had problems with this before? Wolfgang? Thanks in advance.
Regards, Sean