View Single Post
Old 04-08-2016, 11:38 AM   #5
knc1
Going Viral
knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.
 
knc1's Avatar
 
Posts: 17,212
Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
K2 (and DX/DXG/DXF) storage layout

The K2 (fw-2.5.4) storage layout, the DX(G) should be the same:

Code:
[root@kindle root]# cat /proc/partitions
major minor  #blocks  name

   7     0    1560656 loop0
  31     0        128 mtdblock0
  31     1       3584 mtdblock1
  31     2         32 mtdblock2
  31     3        128 mtdblock3
  31     4       3584 mtdblock4
  31     5         64 mtdblock5
  31     6        128 mtdblock6
  31     7         24 mtdblock7
  31     8         64 mtdblock8
 179     0    2007040 mmcblk0
 179     1     411277 mmcblk0p1
 179     2      34596 mmcblk0p2
 179     4    1560664 mmcblk0p4
Where:
Code:
mxc_nor_flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

erase region 0: offset=0x0,size=0x2000,blocks=8
erase region 1: offset=0x10000,size=0x10000,blocks=127
mxc_nor_flash.0: 1 set(s) of 1 interleaved chips --> 16 partitions of 512 KiB

Creating 9 MTD partitions on "mxc_nor_flash.0":
0x00020000-0x00040000 : "Bootloader1"
0x00060000-0x003e0000 : "Kernel1"
0x00008000-0x00010000 : "BoardId"
0x00040000-0x00060000 : "Bootloader2"
0x00400000-0x00780000 : "Kernel2"
0x00010000-0x00020000 : "BootEnv"
0x003e0000-0x00400000 : "Diags"
0x00000000-0x00006000 : "Vectors"
0x00010000-0x00020000 : "unused0"
That NOR flash memory layout:
Code:
0x00000000-0x00006000 : "Vectors"       ( 24*1024)  mtdblock7

# Unassigned:
0x00006000-0x00008000 :   ????          (   8*1924)

0x00008000-0x00010000 : "BoardId"       (  32*1024) mtdblock2

# A small case of double assignment here (may be fixed in later fw versions)
0x00010000-0x00020000 : "unused0"       (  64*1024) mtdblock8
0x00010000-0x00020000 : "BootEnv"       (  64*1924) mtdblock5 

0x00020000-0x00040000 : "Bootloader1"   ( 128*1024) mtdblock0
0x00040000-0x00060000 : "Bootloader2"   ( 128*1024) mtdblock3
0x00060000-0x003e0000 : "Kernel1"       (3584*1024) mtdblock1
0x003e0000-0x00400000 : "Diags"         ( 128*1024) mtdblock6
0x00400000-0x00780000 : "Kernel2"       (3584*1024) mtdblock4

# Unassigned:
0x00780000-0x007FFFFF :   ????          ( 512*1024)
The NAND flash layout:
Code:
Units = cylinders of 7688 * 512 = 3936256 bytes

        Device Boot      Start         End      Blocks  Id System
/dev/mmcblk0p1   *           1         107      411277  83 Linux
/dev/mmcblk0p2             108         116       34596  83 Linux
/dev/mmcblk0p4             117         522     1560664   b Win95 FAT32
Where:
Code:
/dev/root on / type ext3 (ro,noatime,nodiratime,data=ordered) a.k.a: /dev/mmcblk0p1
/dev/mmcblk0p2 on /var/local type ext3 (rw,sync,data=ordered)

fsp on /mnt/us type fuse.fsp (rw,nosuid,nodev,user_id=0,group_id=0) a.k.a: USB mass storage

/dev/loop/0 on /mnt/base-us type vfat (rw,noexec,noatime,nodiratime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8)
## (Which is /dev/mmcblk0p4 - 8192 byte DOS disk label)

# What the user sees of /dev/mmcblk0p4:
Units = cylinders of 64 * 512 = 32768 bytes

          Device Boot      Start         End      Blocks  Id System
/dev/mmcblk0p4p1               1       48770     1560632   b Win95 FAT32
Now - off to start copying out this stuff in an organized manner as a step towards de-bricking my K2i.

Edit:
The kernel image is using 1844 of the 3584, 1024byte blocks allowed.
Plenty of room for some additions.

Last edited by knc1; 04-08-2016 at 01:12 PM.
knc1 is offline   Reply With Quote