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58
boot-process.md
View file

@ -139,6 +139,64 @@ mtd9: 00200000 00010000 "user2"
[ 0.700000] 0x000000d80000-0x000000e00000 : "user"
[ 0.712000] 0x000000e00000-0x000001000000 : "user2"
...
# cat -n /proc/kmsg
<5>[ 0.000000] Linux version 2.6.36+ (linkplay@linkplay-build-2) (gcc version 4.6.4 (Buildroot 2013.11) ) #1 Mon Jun 22 15:40:26 CST 2020
<4>[ 0.000000]
<4>[ 0.000000] The CPU feqenuce set to 575 MHz
<4>[ 0.000000]
<4>[ 0.000000] MIPS CPU sleep mode enabled.
<6>[ 0.000000] CPU revision is: 00019655 (MIPS 24Kc)
<6>[ 0.000000] Software DMA cache coherency
<6>[ 0.000000] Determined physical RAM map:
<6>[ 0.000000] memory: 04000000 @ 00000000 (usable)
<4>[ 0.000000] Zone PFN ranges:
<4>[ 0.000000] Normal 0x00000000 -> 0x00004000
...
<6>[ 0.284000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
<6>[ 0.296000] JFFS2 version 2.2 (NAND) (ZLIB) (RTIME) (c) 2001-2006 Red Hat, Inc.
<6>[ 0.312000] fuse init (API version 7.15)
...
<4>[ 0.444000] flash manufacture id: ef, device id 40 18
<4>[ 0.456000] W25Q128BV(ef 40180000) (16384 Kbytes)
<4>[ 0.464000] mtd .name = raspi, .size = 0x01000000 (16M) .erasesize = 0x00010000 (64K) .numeraseregions = 0
<4>[ 0.484000] user1 00d80000 - 00e00000 size 00080000
<4>[ 0.492000] user2 00e00000 - 01000000 size 00200000
<5>[ 0.504000] Creating 10 MTD partitions on "raspi":
<5>[ 0.512000] 0x000000000000-0x000001000000 : "ALL"
<5>[ 0.524000] 0x000000000000-0x000000030000 : "Bootloader"
<4>[ 0.532000] ===========check_rootfs offset=42f3be i=64, ret=0 ==============
<4>[ 0.548000] name:Wiimu Rootfs
<4>[ 0.552000] ih_time:0x7b62f05e
<4>[ 0.560000] ih_magic:0x56190527
<4>[ 0.564000] ih_hcrc:0xc82acb88
<4>[ 0.572000] ih_size:6529024 Bytes
<4>[ 0.580000] ih_dcrc:0x39e11b49
<4>[ 0.584000] os=6, arch=5, type=7, comp=1
<4>[ 0.592000] ih_ksz:0x00000000
<4>[ 0.592000]
<4>[ 0.592000]
<5>[ 0.604000] 0x000000030000-0x000000040000 : "Config"
<5>[ 0.616000] 0x000000040000-0x000000050000 : "Factory"
<5>[ 0.624000] 0x000000050000-0x000000250000 : "bkKernel"
<5>[ 0.636000] 0x000000250000-0x00000042f3fe : "Kernel"
<4>[ 0.648000] mtd: partition "Kernel" doesn't end on an erase block -- force read-only
<5>[ 0.664000] 0x00000042f3fe-0x000000d80000 : "RootFS"
<4>[ 0.672000] mtd: partition "RootFS" doesn't start on an erase block boundary -- force read-only
<5>[ 0.692000] 0x000000250000-0x000000d80000 : "Kernel_RootFS"
<5>[ 0.700000] 0x000000d80000-0x000000e00000 : "user"
<5>[ 0.712000] 0x000000e00000-0x000001000000 : "user2"
<4>[ 0.724000] rdm_major = 253
<4>[ 0.728000] GMAC1_MAC_ADRH -- : 0x00000022
<4>[ 0.736000] GMAC1_MAC_ADRL -- : 0x6c25402b
<4>[ 0.744000] Ralink APSoC Ethernet Driver Initilization. v3.1 256 rx/tx descriptors allocated, mtu = 1500!
<4>[ 0.772000] get_rootfs_checked_flag = 1
<4>[ 0.780000] this is not first bootup, ignore check rootfs
<4>[ 0.788000] GMAC1_MAC_ADRH -- : 0x00000022
<4>[ 0.796000] GMAC1_MAC_ADRL -- : 0x6c25402b
<1>[ 0.804000] PROC INIT OK!
<4>[ 0.816000]
...
```
Install **_dd_** from busybox and **_scp_** from dropbear package (see **_Enable Telnet_** section to install **_busybox_** and **_Hardware and Firmware_** section to install **dropbear**), then
```

5
persistant-hook.md
View file

@ -1,7 +1,7 @@
# Install Persistant Hook
When the device reboots, any changes in ramfs are lost, but the device is using flash with squashfs and jffs2 file systems. I have not discovered how to modfiy and upload an image to squashfs, but with jffs2 there is a way to install a hook.
Below is an output of mount command (including modification of /etc_ro/web/cgi-bin directory, but that's not required to install a hook) and ***cat /proc/mtd*** output:
Below is an output of mount command and ***cat /proc/mtd*** output:
```
# mount
rootfs on / type rootfs (rw)
@ -19,7 +19,6 @@ mdev on /dev type ramfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
/dev/mtdblock8 on /mnt type jffs2 (rw,relatime)
/dev/mtdblock9 on /vendor type jffs2 (rw,relatime)
none on /etc_ro/web/cgi-bin type ramfs (rw,relatime)
# cat /proc/mtd
dev: size erasesize name
@ -38,7 +37,7 @@ mtd9: 00200000 00010000 "user2"
The mtd9 device named "user2" is not erased at a reboot, because it contains play lists. It is mounted as /vendor and a hook can be installed in ***/vendor/user*** directory as described below. On the Up2Stream Pro device that I own that directory was already present and a script called ***user.sh*** was located in that directory.
> **Note:**
> Neither that directory nor the **user.sh*** script were installed on my Up2Stream Amp device by default. Both devices have the same software version 4.2.8020 from 2020/02/20 (20th of Feb 2020) and were downgraded from v4.6.415145, release date 2022/04/27.
> Neither that directory nor the **user.sh** script were installed on my Up2Stream Amp device by default. Both devices have the same software version 4.2.8020 from 2020/02/20 (20th of Feb 2020) and were downgraded from v4.6.415145, release date 2022/04/27.
Here's the file from the device where the script was already present (used to start a daemon called ***socket***):
```