I need 3 partitions on my 4GB SD card. Using busybox fdisk to partition it (type=83 Linux), and mkfs.ext3 to format each partition.
I can force reread of the partition table all day and get different results each time.
Is there a kernel bug that doesn't read the partition table accurately and consistently?
A few items worth noting:
DM8168; linux-2.6.37-psp04.04.00.01; busybox 1.18.2
/proc/devices section "Block devices:" contains "179 mmc"
In trying to work around this problem, I currently have 4 partitions, with the 4th partition at the start of the device. But I still have the problem.
/ # fdisk -l /dev/mmcblk0
Disk /dev/mmcblk0: 3980 MB, 3980394496 bytes
4 heads, 16 sectors/track, 121472 cylinders
Units = cylinders of 64 * 512 = 32768 bytes
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 63 31313 1000032 83 Linux
/dev/mmcblk0p2 31314 46939 500032 83 Linux
/dev/mmcblk0p3 46940 121472 2385056 83 Linux
/dev/mmcblk0p4 1 62 1976 83 Linux
Partition table entries are not in disk order
/ # for i in `seq 5`; do blockdev --rereadpt /dev/mmcblk0; ls -l /dev/mmc*; echo; done
brw-rw---- 1 root root 179, 0 Jul 30 16:31 /dev/mmcblk0
brw-rw---- 1 root root 179, 1 Jul 30 17:55 /dev/mmcblk0p1
brw-rw---- 1 root root 179, 2 Jul 30 17:55 /dev/mmcblk0p2
brw-rw---- 1 root root 179, 3 Jul 30 17:55 /dev/mmcblk0p3
brw-rw---- 1 root root 179, 4 Jul 30 17:55 /dev/mmcblk0p4
brw-rw---- 1 root root 179, 0 Jul 30 16:31 /dev/mmcblk0
brw-rw---- 1 root root 179, 1 Jul 30 17:55 /dev/mmcblk0p1
brw------- 1 root root 179, 2 Jul 30 17:55 /dev/mmcblk0p2
brw-rw---- 1 root root 179, 3 Jul 30 17:55 /dev/mmcblk0p3
brw------- 1 root root 179, 4 Jul 30 17:55 /dev/mmcblk0p4
brw-rw---- 1 root root 179, 0 Jul 30 16:31 /dev/mmcblk0
brw-rw---- 1 root root 179, 1 Jul 30 17:55 /dev/mmcblk0p1
brw-rw---- 1 root root 179, 2 Jul 30 17:55 /dev/mmcblk0p2
brw-rw---- 1 root root 179, 4 Jul 30 17:55 /dev/mmcblk0p4
brw-rw---- 1 root root 179, 0 Jul 30 16:31 /dev/mmcblk0
brw-rw---- 1 root root 179, 1 Jul 30 17:55 /dev/mmcblk0p1
brw-rw---- 1 root root 179, 2 Jul 30 17:55 /dev/mmcblk0p2
brw-rw---- 1 root root 179, 3 Jul 30 17:55 /dev/mmcblk0p3
brw-rw---- 1 root root 179, 4 Jul 30 17:55 /dev/mmcblk0p4
brw-rw---- 1 root root 179, 0 Jul 30 16:31 /dev/mmcblk0
brw-rw---- 1 root root 179, 1 Jul 30 17:55 /dev/mmcblk0p1
brw-rw---- 1 root root 179, 2 Jul 30 17:55 /dev/mmcblk0p2
brw-rw---- 1 root root 179, 3 Jul 30 17:55 /dev/mmcblk0p3
