@Bryan-French , after update new firmaware, of course i did need to create again, extended RAM, SWAP, and extra space (overlay), but i did use the old commands..

@Maximilian-Gerhardt, i don't have time to do it, i decided to use oled expantion

@Lazar-Demin thank's, finally i did discover what you said..
By the way, it also changed the syntax in some libraries, such as the serialport, and to achieve the complete update, I was forced to expand the RAM memory, otherwise the installation of NPM modules, it is not possible.

Maybe you have to say that, and we will not lose so much time.

thanks

@Maximilian-Gerhardt, It is too difficult to solve all the dependencies, I reached the point of not being able to solve some of them

@Maximilian-Gerhardt , i will check it out...

@Bryan-French, you must create a swap partition un usb, or sd...

@cas you're right, I created an swap memory in my omega 2+, and now everything is working.

Can you help me to connect LCD12864B, by SPI or Multi Pin ? i need to use it in nodeJs. I can't find any library.

The upgrade process npm i -g npm, ends with this message

[..................] / loadRequestedDeps: sill install loadAllDepsIntoIdealTree
<--- Last few GCs --->

[1964:0x170a000] 200453 ms: Scavenge 22.1 (26.2) -> 21.2 (26.2) MB, 8.3 / 0.1 ms allocation failure
[1964:0x170a000] 205122 ms: Scavenge 22.1 (26.2) -> 21.2 (26.2) MB, 1590.3 / 82.5 ms allocation failure
[1964:0x170a000] 228340 ms: Scavenge 22.1 (26.2) -> 21.2 (26.2) MB, 3466.2 / 6.6 ms allocation failure
[1964:0x170a000] 2[ 1831.244269] do_page_fault(): sending SIGSEGV to npm for invalid write access to 00000000
45609 ms: Scaven[ 1831.253672] epc = 77ef1dc8 in libc.so[77ed3000+92000]
ge 22.1 (26.2) -[ 1831.260193] ra = 77ef1dc8 in libc.so[77ed3000+92000]

21.2 (26.2) MB, 4349.9 / 17.9 ms allocation failure

<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x5841330d <JSObject>
2: makeCallback(aka makeCallback) [fs.js:134] [bytecode=0x5b870a2d offset=46](this=0x58404125 <undefined>,cb=0x4477ffad <JSFunction er (sfi = 0x30ecd0b5)>)
3: /* anonymous */ [fs.js:871] [bytecode=0x5b8707f9 offset=16](this=0x3e8b7aa1 <Object map = 0x380f4729>,path=0x4477ff61 <String[81]: /tmp/npm-1964-d5d3eb0d/unpack-1e6d3098/node_modules/libnpmorg/node_modules/aproba>,mode=493,callback=0x4...

FATAL ERROR: Committing semi space failed. Allocation failed - process out of memory
Segmentation fault

After upgrade to OpenWRT 18.06, an app developed in nodejs, and it use serialport to read barcode, broke execution because and say 'serialport, did compiled in other version'. I can't resolve this issue.