I am experiencing an issue with my MikroTik CRS354-48G-4S+2Q+ switch and am seeking some help. I'm unable to boot into SwitchOS. I will provide all the information needed to solve this issue.
Problem:
I am unable to boot into SwitchOS. Every time I try to boot into SwitchOS, I receive an error indicating that the kernel cannot be loaded. The device remains stuck in RouterOS.
Device Details:
Model: CRS354-48G-4S+2Q+
Current Firmware Version: RouterOS 7.15.2
RouterBoot Version: 7.15.2
Factory Firmware Version: RouterOS NOT 7.15.2
Factory Firmware RouterBoot: 6.48
SwitchOS Version: 2.16 (uploaded)
See Image 1 (System:RouterBOARD)
Console Output:
Code: Select all
Rebooting...
[ 4222.343854] reboot: Restarting system
RouterBOOT booter 7.15.2
CRS354-48G-4S+2Q+
CPU frequency: 650 MHz
Memory speed: 300 MHz
Memory size: 64 MiB
Storage size: 16 MiB
Press Ctrl+E to enter etherboot mode
Press <delete> key within 2 seconds to enter setup..
trying bootp protocol............... failed
kernel loading failed
trying bootp protocol............... failed
kernel loading failed
trying bootp protocol..................................................................... aborted
kernel loading failed
RouterBOOT booter 7.15.2
CRS354-48G-4S+2Q+
CPU frequency: 650 MHz
Memory speed: 300 MHz
Memory size: 64 MiB
Storage size: 16 MiB
Press Ctrl+E to enter etherboot mode
Press <delete> key within 2 seconds to enter setup
RouterBOOT-7.15.2
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
h - preboot etherboot
f - cpu frequency
r - reset booter configuration
e - format storage
w - repartition nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
j - boot os
t - test ram memory
x - exit setup
your choice: j - boot os
Select what to boot:
1 - RouterOS
* 2 - SwOS
your choice: 1 - RouterOS
RouterBOOT-7.15.2
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
h - preboot etherboot
f - cpu frequency
r - reset booter configuration
e - format storage
w - repartition nand
g - upgrade firmware
i - board info
p - boot protocol
b - booter options
j - boot os
t - test ram memory
x - exit setup
your choice: x - exit setup
writing settings to flash... OK
RouterBOOT booter 7.15.2
CRS354-48G-4S+2Q+
CPU frequency: 650 MHz
Memory speed: 300 MHz
Memory size: 64 MiB
Storage size: 16 MiB
Press Ctrl+E to enter etherboot mode
Press <delete> key within 2 seconds to enter setup..
loading kernel... OK
setting up elf image... OK
jumping to kernel code
Starting...
Starting services...
MikroTik 7.15.2 (stable)
What I Have Tried:
Firmware Update via WinBox and Console:
- Updated RouterOS to version 7.15.2.
- Updated RouterBoot firmware using /system routerboard upgrade.
- Restarted the device after each update.
- I got the firmware from here: https://mikrotik.com/product/crs354_48g ... -downloads
Manual Upload of SwitchOS File:
- Uploaded swos-css354-2.16.bin to the root directory and verified its presence with /file print.
- Set the boot OS to SwitchOS using /system routerboard settings set boot-os=swos.
- Rebooted the device with /system reboot.
Attempts to Boot into SwitchOS with different static IP:
- Changed the IP to 172.17.0.6, rebooted the device, and then accessed the RouterOS Web Interface to change the boot OS to SwitchOS with WinBox.
Reset Configuration:
- Reset the device to factory settings using /system reset-configuration no-defaults=yes skip-backup=yes.
- Repeated all the above steps, but still no success.
Backup BootLoader with Firmware 6.48:
- Attempted to use the backup bootloader to revert to firmware 6.48, but the problem persists.
Netinstall:
- Performed Netinstall to reinstall the firmware, but the issue with loading the SwitchOS kernel persists.
Additional Information:
- I have three other switches of the same model (CRS354-48G-4S+2Q+), and they all boot into SwitchOS and RouterOS without any issues. They are Revision 3, not Revision 2 like the problematic one.
- The problematic switch was purchased about 8-9 months ago, while the others were purchased recently.
- I have configured a static IP address and can access the RouterOS web GUI.
- The issue with loading the SwitchOS kernel persists.
I am at a loss and would greatly appreciate any suggestions or advice on how to successfully get SwitchOS running on this switch.
Thank's in advance
