這sysupgrade基於升級說明建議使用以下範例進行系統升級：
cd /tmp wget http://downloads.openwrt.org/chaos_calmer/15.05/****/generic/filename-of-downloaded-sysupgrade.bin
sysupgrade -v /tmp/filename-of-downloaded-sysupgrade.bin
我的路由器在 OpenWRT 上的頁面技術資料：Linksys WRT1900ACS v1建議「韌體 OpenWrt 升級 URL」是https://downloads.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar——一個tar而不是一個bin——我不知道這是否重要- 它不是。
下載：
root@OpenWrt:~# wget https://downloads.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
--2018-02-04 16:23:18-- https://downloads.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
Resolving downloads.openwrt.org... 2a01:4f8:202:43ea::3, 148.251.78.235
Connecting to downloads.openwrt.org|2a01:4f8:202:43ea::3|:443... failed: Permission denied.
Connecting to downloads.openwrt.org|148.251.78.235|:443... connected.
ERROR: cannot verify downloads.openwrt.org's certificate, issued by 'CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US':
Unable to locally verify the issuer's authority.
To connect to downloads.openwrt.org insecurely, use `--no-check-certificate'.
看起來 Let's Encrypt 證書不好:(
root@OpenWrt:~# wget --no-check-certificate https://downloads.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
--2018-02-04 16:23:28-- https://downloads.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
Resolving downloads.openwrt.org... 2a01:4f8:202:43ea::3, 148.251.78.235
Connecting to downloads.openwrt.org|2a01:4f8:202:43ea::3|:443... failed: Permission denied.
Connecting to downloads.openwrt.org|148.251.78.235|:443... connected.
WARNING: cannot verify downloads.openwrt.org's certificate, issued by 'CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US':
Unable to locally verify the issuer's authority.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://archive.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar [following]
--2018-02-04 16:23:28-- https://archive.openwrt.org/chaos_calmer/15.05.1/mvebu/generic/openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
Resolving archive.openwrt.org... 81.0.124.218
Connecting to archive.openwrt.org|81.0.124.218|:443... connected.
WARNING: cannot verify archive.openwrt.org's certificate, issued by 'CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US':
Unable to locally verify the issuer's authority.
HTTP request sent, awaiting response... 200 OK
Length: 4239360 (4.0M) [application/octet-stream]
Saving to: 'openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar'
openwrt-15.05.1-mvebu-armada-385-linksys-shelby-sq 100%[===============================================================================================================>] 4.04M 3.35MB/s in 1.2s
2018-02-04 16:23:29 (3.35 MB/s) - 'openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar' saved [4239360/4239360]
嘗試使用升級柏油文件
root@OpenWrt:/tmp# sysupgrade -v openwrt-15.05.1-mvebu-armada-385-linksys-shelby-squashfs-sysupgrade.tar
Saving config files...
etc/collectd.conf
etc/config/dhcp
etc/config/dropbear
etc/config/firewall
etc/config/luci
etc/config/luci_statistics
etc/config/network
etc/config/openvpn
etc/config/openvpn_recipes
etc/config/pptpd
etc/config/qos
etc/config/rpcd
etc/config/samba
etc/config/system
etc/config/ubootenv
etc/config/ucitrack
etc/config/uhttpd
etc/config/wireless
etc/crontabs/root
etc/dnsmasq.conf
etc/dropbear/dropbear_dss_host_key
etc/dropbear/dropbear_rsa_host_key
etc/firewall.user
etc/group
etc/hosts
etc/inittab
etc/openvpn/AU Melbourne.ovpn
etc/openvpn/AU Sydney.ovpn
etc/openvpn/Brazil.ovpn
etc/openvpn/CA North York.ovpn
etc/openvpn/CA Toronto.ovpn
etc/openvpn/France.ovpn
etc/openvpn/Germany.ovpn
etc/openvpn/Hong Kong.ovpn
etc/openvpn/Ireland.ovpn
etc/openvpn/Israel.ovpn
etc/openvpn/Italy.ovpn
etc/openvpn/Japan.ovpn
etc/openvpn/Mexico.ovpn
etc/openvpn/Netherlands.ovpn
etc/openvpn/Romania.ovpn
etc/openvpn/Russia.ovpn
etc/openvpn/Singapore.ovpn
etc/openvpn/Sweden.ovpn
etc/openvpn/Switzerland.ovpn
etc/openvpn/Turkey.ovpn
etc/openvpn/UK London.ovpn
etc/openvpn/UK Southampton.ovpn
etc/openvpn/US California.ovpn
etc/openvpn/US East.ovpn
etc/openvpn/US Florida.ovpn
etc/openvpn/US Midwest.ovpn
etc/openvpn/US New York City.ovpn
etc/openvpn/US Seattle.ovpn
etc/openvpn/US Silicon Valley.ovpn
etc/openvpn/US Texas.ovpn
etc/openvpn/US West.ovpn
etc/openvpn/authuser
etc/openvpn/ca.crt
etc/openvpn/crl.pem
etc/openvpn/piageneric.ovpn
etc/opkg.conf
etc/opkg/customfeeds.conf
etc/opkg/keys/53bad1233d4c98c5
etc/passwd
etc/ppp/chap-secrets
etc/ppp/filter
etc/ppp/options
etc/ppp/options.pptpd
etc/pptpd.conf
etc/profile
etc/protocols
etc/rc.local
etc/samba/smb.conf.template
etc/services
etc/shadow
etc/shells
etc/ssl/openssl.cnf
etc/sysctl.conf
etc/sysupgrade.conf
etc/uhttpd.crt
etc/uhttpd.key
etc/uhttpd.key
etc/uhttpd.crt
killall: watchdog: no process killed
Sending TERM to remaining processes ... logd rpcd netifd odhcpd crond uhttpd smbd nmbd collectd ntpd dnsmasq ubusd askfirst
Sending KILL to remaining processes ... askfirst
Switching to ramdisk...
Performing system upgrade...
Cannot parse config file: No such file or directory
Cannot parse config file: No such file or directory
Error: environment not initialized
cannot find target partition
@OpenWrt:/tmp#
看來tar我使用的文件不好。是否應該有替代bin文件？或者你還有什麼建議？
更新：
我再次嘗試了這個我的路由器的 Lede 詳細信息- 這次是一份.bin文件...
cd /tmp wget --no-check-certificate https://downloads.lede-project.org/releases/17.01.4/targets/mvebu/generic/lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin
sysupgrade -v lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin
我在輸出底部得到相同的錯誤：
Saving config files...
etc/collectd.conf
etc/config/dhcp
...
etc/uhttpd.crt
killall: watchdog: no process killed
Sending TERM to remaining processes ... logd rpcd netifd odhcpd crond uhttpd
smbd nmbd collectd ntpd dnsmasq ubusd askfirst
Sending KILL to remaining processes ... askfirst
Switching to ramdisk...
Performing system upgrade...
Cannot parse config file: No such file or directory
Cannot parse config file: No such file or directory
Error: environment not initialized
cannot find target partition
進一步看，這是失敗的一點：Cannot parse config file
似乎是[以前見過]](https://forum.openwrt.org/viewtopic.php?pid=298046#p298046kernel1）與我的路由器有一個and kernel2in有關/proc/mtd
在 WRT1900AC 和 WRT1900ACS 中，我們沒有在 /proc/mtd 中定義一個裝置“韌體”或“linux”，而是其中兩個：“kernel1”和“kernel2”，它們是多餘的。當目前韌體首先運行時，升級應該在第二個上閃爍。如果出現問題，還有可能返回。閃光後需要切換到第二次閃光。
- 從https://forum.openwrt.org/viewtopic.php?pid=298084#p298084
我不知道下一步要做什麼升級。非常歡迎任何幫助或意見。
答案1
閱讀了更多內容後，我更新了系統以添加正確的配置文件，但遺憾的是缺少：
# from https://github.com/openwrt/openwrt/blob/master/package/boot/uboot-envtools/files/mvebu
touch /etc/config/ubootenv
. /lib/uboot-envtools.sh
. /lib/functions.sh
ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x20000" "0x40000"
config_load ubootenv
config_foreach ubootenv_add_app_config ubootenv
reboot
完成此操作後，我可以成功升級到 LEDE 的最新版本：
root@OpenWrt:/tmp# cd /tmp; wget --no-check-certificate https://downloads.lede-project.org/releases/17.01.4/targets/mvebu/generic/lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin
--2018-02-05 11:16:05-- https://downloads.lede-project.org/releases/17.01.4/targets/mvebu/generic/lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin
Resolving downloads.lede-project.org... 2a01:4f8:202:43ea::3, 148.251.78.235
Connecting to downloads.lede-project.org|2a01:4f8:202:43ea::3|:443... failed: Permission denied.
Connecting to downloads.lede-project.org|148.251.78.235|:443... connected.
WARNING: cannot verify downloads.lede-project.org's certificate, issued by 'CN=Let\'s Encrypt Authority X3,O=Let\'s Encrypt,C=US':
Unable to locally verify the issuer's authority.
HTTP request sent, awaiting response... 200 OK
Length: 4853942 (4.6M) [application/octet-stream]
Saving to: 'lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin'
lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sys 100%[===============================================================================================================>] 4.63M 2.22MB/s in 2.1s
2018-02-05 11:16:08 (2.22 MB/s) - 'lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin' saved [4853942/4853942]
root@OpenWrt:/tmp# sysupgrade -v lede-17.01.4-mvebu-linksys-wrt1900acs-squashfs-sysupgrade.bin
Saving config files...
etc/collectd.conf
etc/config/dhcp
etc/config/dropbear
etc/config/firewall
etc/config/luci
etc/config/luci_statistics
etc/config/network
etc/config/openvpn
etc/config/openvpn_recipes
etc/config/pptpd
etc/config/qos
etc/config/rpcd
etc/config/samba
etc/config/system
etc/config/ubootenv
etc/config/ucitrack
etc/config/uhttpd
etc/config/wireless
etc/crontabs/root
etc/dnsmasq.conf
etc/dropbear/dropbear_dss_host_key
etc/dropbear/dropbear_rsa_host_key
etc/firewall.user
etc/fw_env.config
etc/group
etc/hosts
etc/inittab
etc/openvpn/AU Melbourne.ovpn
etc/openvpn/AU Sydney.ovpn
etc/openvpn/Brazil.ovpn
etc/openvpn/CA North York.ovpn
etc/openvpn/CA Toronto.ovpn
etc/openvpn/France.ovpn
etc/openvpn/Germany.ovpn
etc/openvpn/Hong Kong.ovpn
etc/openvpn/Ireland.ovpn
etc/openvpn/Israel.ovpn
etc/openvpn/Italy.ovpn
etc/openvpn/Japan.ovpn
etc/openvpn/Mexico.ovpn
etc/openvpn/Netherlands.ovpn
etc/openvpn/Romania.ovpn
etc/openvpn/Russia.ovpn
etc/openvpn/Singapore.ovpn
etc/openvpn/Sweden.ovpn
etc/openvpn/Switzerland.ovpn
etc/openvpn/Turkey.ovpn
etc/openvpn/UK London.ovpn
etc/openvpn/UK Southampton.ovpn
etc/openvpn/US California.ovpn
etc/openvpn/US East.ovpn
etc/openvpn/US Florida.ovpn
etc/openvpn/US Midwest.ovpn
etc/openvpn/US New York City.ovpn
etc/openvpn/US Seattle.ovpn
etc/openvpn/US Silicon Valley.ovpn
etc/openvpn/US Texas.ovpn
etc/openvpn/US West.ovpn
etc/openvpn/authuser
etc/openvpn/ca.crt
etc/openvpn/crl.pem
etc/openvpn/piageneric.ovpn
etc/opkg.conf
etc/opkg/customfeeds.conf
etc/opkg/keys/53bad1233d4c98c5
etc/passwd
etc/ppp/chap-secrets
etc/ppp/filter
etc/ppp/options
etc/ppp/options.pptpd
etc/pptpd.conf
etc/profile
etc/protocols
etc/rc.local
etc/samba/smb.conf.template
etc/services
etc/shadow
etc/shells
etc/ssl/openssl.cnf
etc/sysctl.conf
etc/sysupgrade.conf
etc/uhttpd.crt
etc/uhttpd.key
etc/uhttpd.key
etc/uhttpd.crt
killall: watchdog: no process killed
Sending TERM to remaining processes ... logd rpcd netifd odhcpd crond uhttpd smbd nmbd collectd ntpd dnsmasq ubusd askfirst
Sending KILL to remaining processes ... askfirst
Switching to ramdisk...
Performing system upgrade...
Unlocking kernel1 ...
Writing from <stdin> to kernel1 ...
ubiattach: error!: cannot attach mtd5
error 22 (Invalid argument)
ubiformat: mtd5 (nand), size 35651584 bytes (34.0 MiB), 272 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 271 -- 100 % complete
ubiformat: 85 eraseblocks are supposedly empty
ubiformat: warning!: 187 of 272 eraseblocks contain non-UBI data
ubiformat: warning!: only 0 of 272 eraseblocks have valid erase counter
ubiformat: erase counter 0 will be used for all eraseblocks
ubiformat: note, arbitrary erase counter value may be specified using -e option
ubiformat: use erase counter 0 for all eraseblocks
ubiformat: formatting eraseblock 271 -- 100 % complete
UBI device number 2, total 272 LEBs (34537472 bytes, 32.9 MiB), available 248 LEBs (31490048 bytes, 30.0 MiB), LEB size 126976 bytes (124.0 KiB)
Volume ID 0, size 22 LEBs (2793472 bytes, 2.7 MiB), LEB size 126976 bytes (124.0 KiB), dynamic, name "rootfs", alignment 1
Set volume size to 28696576
Volume ID 1, size 226 LEBs (28696576 bytes, 27.4 MiB), LEB size 126976 bytes (124.0 KiB), dynamic, name "rootfs_data", alignment 1
sysupgrade successful
重新啟動後顯示升級成功：
_________
/ /\ _ ___ ___ ___
/ LE / \ | | | __| \| __|
/ DE / \ | |__| _|| |) | _|
/________/ LE \ |____|___|___/|___| lede-project.org
\ \ DE /
\ LE \ / -----------------------------------------------------------
\ DE \ / Reboot (17.01.4, r3560-79f57e422d)
\________\/ -----------------------------------------------------------