после установки всех драйверов, нужно перезагрузить роутер, с подключенным usb модемом, скорей всего у вас из-за этого не появился eth2
к сожалению я первым делом это сделал и уже еще 3 раза перегружал
Вот что в логах есть:
[ 9.574672] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 9.578444] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[ 9.583774] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed
[ 9.591465] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 9.598596] hub 2-0:1.0: USB hub found
[ 9.606303] hub 2-0:1.0: 1 port detected
[ 9.610375] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 9.613880] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3
[ 9.619447] xhci-hcd xhci-hcd.1.auto: hcc params 0x0220f665 hci version 0x100 quirks 0x0000000002010010
[ 9.626815] xhci-hcd xhci-hcd.1.auto: irq 95, io mem 0x06000000
[ 9.636915] hub 3-0:1.0: USB hub found
[ 9.642065] hub 3-0:1.0: 1 port detected
[ 9.646217] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 9.649893] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4
[ 9.655220] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 9.662894] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[ 9.670010] hub 4-0:1.0: USB hub found
[ 9.677827] hub 4-0:1.0: config failed, hub doesn't have any ports! (err -19)
[ 9.683272] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[ 9.701046] init: - preinit -
[ 9.940362] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 10.426769] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 10.426863] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 13.655689] UBIFS (ubi0:6): background thread "ubifs_bgt0_6" started, PID 151
[ 14.122136] UBIFS (ubi0:6): recovery needed
[ 14.854122] UBIFS (ubi0:6): recovery completed
[ 14.855120] UBIFS (ubi0:6): UBIFS: mounted UBI device 0, volume 6, name "rootfs_data"
[ 14.857744] UBIFS (ubi0:6): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[ 14.865967] UBIFS (ubi0:6): FS size: 69582848 bytes (66 MiB, 548 LEBs), journal size 3428352 bytes (3 MiB, 27 LEBs)
[ 14.875390] UBIFS (ubi0:6): reserved for root: 3286569 bytes (3209 KiB)
[ 14.885630] UBIFS (ubi0:6): media format: w4/r0 (latest is w5/r0), UUID 3D76B734-0F1E-42AA-B41C-F2797C1FF0D4, small LPT model
[ 14.931900] mount_root: switching to ubifs overlay
[ 14.982309] urandom-seed: Seeding with /etc/urandom.seed
[ 15.244671] procd: - early -
[ 15.244811] procd: - watchdog -
[ 16.010467] procd: - watchdog -
[ 16.010755] procd: - ubus -
[ 16.072721] procd: - init -
[ 17.275001] urngd: v1.0.2 started.
[ 17.745018] kmodloader: loading kernel modules from /etc/modules.d/*
[ 17.812963] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 17.846915] usbcore: registered new interface driver cdc_wdm
[ 17.848221] Loading modules backported from Linux version v4.19.120-0-gfdc072324f3c
[ 17.851702] Backport generated by backports.git v4.19.120-1-0-g60c3a249
[ 17.862148] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 17.872487] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
[ 17.999394] usbcore: registered new interface driver usbserial
[ 17.999518] usbcore: registered new interface driver usbserial_generic
[ 18.004298] usbserial: USB Serial support registered for generic
[ 18.021099] xt_time: kernel timezone is -0000
[ 18.022097] usbcore: registered new interface driver cdc_ether
[ 18.037710] usbcore: registered new interface driver cdc_ncm
[ 18.050561] usbcore: registered new interface driver huawei_cdc_ncm
[ 18.076511] PPP generic driver version 2.4.2
[ 18.077577] NET: Registered protocol family 24
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