Flash ROM
From NAS-Central Buffalo - The Linkstation Wiki
File:Fujitsu 29PL32TM-90PFTN.png
The Kurobox's Flash ROM chip
Currently, the Kuroboxes all use a Fujitsu 29PL32TM-90PFTN 4MB Flash ROM chip. The Flash ROM houses vital information such as the Linux kernel for standard operation and emergency mode, as well as the code for booting into the kernel. The contents are layed out in different ways depending on which Kernel you are using. Flash ROM chip data can be updated, deleted, or reprogrammed through the Linux console or via the optional JTAG port.
Stock 2.4.x Kernel
| device | start | end | size | contents |
|---|---|---|---|---|
| /dev/fl0 | 0xFFF80000 | 0x080000 | 512 K | Empty |
| /dev/fl1 | 0xFFC00000 | 0x300000 | 3 MB | Linux/initrd |
| /dev/fl2 | 0xFFF00000 | 0x070000 | 448 K | bootcode.bin |
| /dev/fl3 | 0xFFF70000 | 0x010000 | 64K | HDD status (OKOKOK) |
Patched 2.6.x Kernel v1
| device | size | erasesize | name |
|---|---|---|---|
| mtd0: | 00300000 | 00010000 | "mtd_firmimg" |
| mtd1: | 00070000 | 00010000 | "mtd_bootcode" |
| mtd2: | 00010000 | 00010000 | "mtd_status" |
| mtd3: | 00080000 | 00010000 | "mtd_conf" |
| mtd4: | 00400000 | 00010000 | "mtd_allflash" |
| mtd5: | 000f0000 | 00010000 | "mtd_data" |
Patched 2.6.x Kernel v2
| device | size | erasesize | name |
|---|---|---|---|
| mtd0: | 00400000 | 00010000 | "mtd_allflash" |
| mtd1: | 00300000 | 00010000 | "mtd_firmimg" |
| mtd2: | 00070000 | 00010000 | "mtd_bootcode" |
| mtd3: | 00010000 | 00010000 | "mtd_status" |
| mtd4: | 00080000 | 00010000 | "mtd_conf" |
