Hello to everybody.
The following problem with RB2011UiAS: after some electricity mulfunction, router falls into circal reboot.
The only reinstallation of RouterOS throuhg netinstall helps.
I thougt.that the problem is that some bad blocks in NAND exist (5,5%), so I splited partition to 2 parts with aim to make active partirion w/o bad blocks, but despite I changed partitions, quantitity of bad blocks didn’t change.
The question is : how can I choose partition with zero bad blocks to make it active as default.
I would expect the flash to be organized like a file system, so the bad blocks should be marked as such and not used to store the RouterOS files when you netinstall (i.e. the data stored in these blocks while they went bad are lost, but netinstall should skip the bad blocks when writing). This is likely not the case for the bootloader, however, which needs to be simple.
In any case, 5 % of bad blocks seem to me like an indication that the whole flash chip is about to die soon.