We have 2 new CRS326-24G-2S+RM switches.
And there is no problem to booting to ROS.
/system routerboard settings set boot-os=swos
/system reboot
And after that - no chance to worked device until we change bootos from console.
Boot output in console:
BootROM 1.41
Booting from SPI flash
BootROM: Image checksum verification PASSED
RouterBOOT booter 6.42.1
CRS326-24G-2S+
CPU frequency: 800 MHz
Memory size: 512 MiB
Storage size: 16 MiB
Press any key within 2 seconds to enter setup
RouterBOOT-6.42.1
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
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: 2 - SwOS
RouterBOOT-6.42.1
What do you want to configure?
d - boot delay
k - boot key
s - serial console
n - silent boot
o - boot device
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
BootROM 1.41
Booting from SPI flash
BootROM: Image checksum verification PASSED
RouterBOOT booter 6.42.1
CRS326-24G-2S+
CPU frequency: 800 MHz
Memory size: 512 MiB
Storage size: 16 MiB
Press any key within 2 seconds to enter setup..
I already tried to upgrade firmware with console port (transfer is OK) - invalid file id (or smth like that).