AIoT Router AC2350 upgrade base-files

root@OpenWrt:~# opkg list-upgradable
luci-mod-system - git-21.304.77266-fceabd7 - git-22.019.40203-e0ff3ff
base-files - 1463-r18609-266b5c83c3 - 1463-r18613-ec85e48a11
luci-base - git-22.006.47037-48599d8 - git-22.019.55972-8752701
luci-mod-network - git-22.007.66027-0ef82b3 - git-22.019.49006-35df2ad
root@OpenWrt:~# opkg upgrade base-files
Upgrading base-files on root from 1463-r18609-266b5c83c3 to 1463-r18613-ec85e48a11...
Downloading https://downloads.openwrt.org/snapshots/targets/ath79/generic/packages/base-files_1463-r18613-ec85e48a11_mips_24kc.ipk
umount: devpts busy - remounted read-only
umount: tmpfs busy - remounted read-only
umount: can't remount tmpfs read-only
umount: proc busy - remounted read-only
Collected errors:
 * copy_file: unable to open `/etc/group-opkg.backup': Read-only file system.
 * file_copy: Failed to copy file /etc/group to /etc/group-opkg.backup.
 * backup_make_backup: Failed to copy /etc/group to /etc/group-opkg.backup
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/base-files.list: Read-only file system.
root@OpenWrt:~# opkg upgrade luci-base luci-mod-network luci-mod-system
Upgrading luci-base on root from git-22.006.47037-48599d8 to git-22.019.55972-8752701...
Downloading https://downloads.openwrt.org/snapshots/packages/mips_24kc/luci/luci-base_git-22.019.55972-8752701_mips_24kc.ipk
Upgrading luci-mod-network on root from git-22.007.66027-0ef82b3 to git-22.019.49006-35df2ad...
Downloading https://downloads.openwrt.org/snapshots/packages/mips_24kc/luci/luci-mod-network_git-22.019.49006-35df2ad_all.ipk
Upgrading luci-mod-system on root from git-21.304.77266-fceabd7 to git-22.019.40203-e0ff3ff...
Downloading https://downloads.openwrt.org/snapshots/packages/mips_24kc/luci/luci-mod-system_git-22.019.40203-e0ff3ff_all.ipk
Collected errors:
 * copy_file: unable to open `/etc/config/luci-opkg.backup': Read-only file system.
 * file_copy: Failed to copy file /etc/config/luci to /etc/config/luci-opkg.backup.
 * backup_make_backup: Failed to copy /etc/config/luci to /etc/config/luci-opkg.backup
 * wfopen: //usr/lib/opkg/info/luci-mod-network.control: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-network.postinst: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-network.postinst-pkg: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-network.prerm: Read-only file system.
 * wfopen: /etc/uci-defaults/50_luci-mod-admin-full: Read-only file system.
 * wfopen: /usr/libexec/luci-peeraddr: Read-only file system.
 * wfopen: /usr/share/luci/menu.d/luci-mod-network.json: Read-only file system.
 * wfopen: /usr/share/rpcd/acl.d/luci-mod-network.json: Read-only file system.
 * wfopen: /www/luci-static/resources/tools/network.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/dhcp.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/diagnostics.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/interfaces.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/routes.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/switch.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/network/wireless.js: Read-only file system.
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/luci-mod-network.list: Read-only file system.
 * opkg_install_pkg: Failed to extract data files for luci-mod-network. Package debris may remain!
 * wfopen: //usr/lib/opkg/info/luci-mod-system.control: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-system.postinst: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-system.postinst-pkg: Read-only file system.
 * wfopen: //usr/lib/opkg/info/luci-mod-system.prerm: Read-only file system.
 * wfopen: /usr/lib/lua/luci/model/cbi/admin_system/backupfiles.lua: Read-only file system.
 * wfopen: /usr/share/luci/menu.d/luci-mod-system.json: Read-only file system.
 * wfopen: /usr/share/rpcd/acl.d/luci-mod-system.json: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/crontab.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/dropbear.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/flash.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/led-trigger/default-on.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/led-trigger/heartbeat.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/led-trigger/netdev.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/led-trigger/none.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/led-trigger/timer.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/leds.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/mounts.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/password.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/reboot.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/sshkeys.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/startup.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/system.js: Read-only file system.
 * wfopen: /www/luci-static/resources/view/system/uhttpd.js: Read-only file system.
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/luci-mod-system.list: Read-only file system.
 * opkg_install_pkg: Failed to extract data files for luci-mod-system. Package debris may remain!
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/luci-mod-system.list: Read-only file system.
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/luci-base.list: Read-only file system.
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/luci-mod-network.list: Read-only file system.

Tell me how to update

you shouldn't update snapshot builds, but update the firmware.