Linksys WRT1900ACS/WRT1900ACS V2 (linksys-shelby)
pmOS can't run on its internal storage.However, it's possible to boot pmOS from USB Stick. |
![]() A portable monitor connected to WRT1900ACS via USB GPU | |
Manufacturer | Linksys |
---|---|
Name | linksys-shelby |
Codename | WRT1900ACS/WRT1900ACS V2 |
Released | 2015 |
Type | router |
Hardware | |
Chipset | Marvell Armada 385 |
CPU | Dual-core 1.2 GHz Cortex-A9 |
GPU | none |
Display | none |
Storage | 128MB |
Memory | 512MB |
Architecture | armv7 |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | yes |
Flashing |
Broken |
---|---|
Internal storage |
Partial |
Connectivity | |
WiFi |
Broken |
Ethernet |
Works |
Miscellaneous | |
FDE |
No data |
USB-A |
Works |
SATA/eSATA |
No data |
HDMI/DP |
No data |
Sensors | |
Magnetometer |
No data |
Ambient Light |
No data |
Proximity |
No data |
Hall Effect |
No data |
Haptics |
No data |
Barometer |
No data |
Contributors
Users owning this device
Default Boot Behavior
nandboot and altnandboot environment variable do not contain any code that is for booting on external drive. |
The device 's stock uboot is like any other u-boot,it will run commands that are saved in the bootcmd environment variable. However unlike other u-boot, the bootcmd is always setted to ether run nandboot
(Run the command that in nandboot environment variable) or run altnandboot
(Run the command that in altnandboot environment variable) depend on whoever it booting off the primary firmware (Slot A in android term) of the alternate firmware (Slot B in android term) .
Installation
Installing pmOS to your disk
WARNING: DO NOT PLUG multiple USB stick into the router during boot if you decided to use usb stick to boot pmos. |
WARNING: DO NOT PLUG multiple SATA drive into the router during boot if you decided to use SATA drive to boot pmos. |
Currently, only installing pmOS to a USB/SATA drive is supported.
Use pmbootstrap to build your own image, like so:
$ pmbootstrap init
$ pmbootstrap install --sdcard=/dev/sdX # change 'sdX' with the path of your USB drive
After creating your pmOS image, connect to your device via UART.
Booting
Due to the boot behavior mention above , pmOS wouldnt boot automatically when it got powered on.Therefore we need manually boot pmos from uboot shell or making it automatically boot from external drive by modify either nandboot
environment variable or altnandboot
environment variable.
Modify environment variable
altnandboot
USB Stick
Run these commands to modify the default altnandboot environment variable for making pmOS automatically boot when the device is powered on and a pmOS USB stick is plugged in:
Marvell# setenv altnandboot_stock ${altnandboot}
Marvell# setenv altnandboot "usb start;ext2load usb 0 ${kernel_addr_r} uImage;ext2load usb 0 ${ramdisk_addr_r} uInitrd;bootm ${kernel_addr_r} ${ramdisk_addr_r};run altnandboot_stock"
Marvell# saveenv
SATA Drive
Run these commands to modify the default altnandboot environment variable for making pmOS automatically boot when the device is powered on and a pmOS SATA Drive is plugged in:
Marvell# setenv altnandboot_stock ${altnandboot}
Marvell# setenv altnandboot "scsi init;ext2load scsi 0 ${kernel_addr_r} uImage;ext2load scsi 0 ${ramdisk_addr_r} uInitrd;bootm ${kernel_addr_r} ${ramdisk_addr_r};run altnandboot_stock"
Marvell# saveenv
See also
- [1] WRT1900ACS on openwrt