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  • 怎么升级ios11

  • 来源:创业找项目
  • 时间:2018-05-06
  • 移动端:怎么升级ios11
  • 篇一:ios系统真的那么好用吗?苹果iOS10.3.2Beta3出世 优化升级速度暴爽

    苹果iOS10.3.2Beta3出世 优化升级速度暴爽

    最新统计数据显示,2017年3月份,iOS中国市场占有率从22.2%一路下滑9%至13.2%。有分析称这主要跟iPhone 7升级幅度不大,后续销量乏力有关系。目前苹果再次发布了iOS 10.3.2的新版(公测版、内测版齐发),版本号为14F5080a。这次新测试版苹果依然提供32位版本的镜像,这也打破了之前传闻,即苹果要提前放弃iPhone 5等老设备了。

    在iOS 10.3.2的第三个测试版中,并无添加其他功能,主要是Bug修复和改进提升,同时优化系统性能,并没有带来什么重大新功能。

    根据目前得到的消息,Beta3中已修复开机第一次按home键不能一次返回的bug,拨号尾数闪烁问题依然存在,其他情况目前还未知。

    虽然苹果没有在新系统中明说,但他们对老设备在新系统下的性能仍在做最后的优化,以确保体验更流畅。这也让不少老果粉在论坛大呼苹果良心,当然从iOS 11开始,这些老设备将全部给淘汰。如何升级

    iOS10.3.2开发者预览版Beta3可以由运行开发者预览版的iPhone、iPad和iPod touch通过OTA在线升级,没有安装Beta版本设备的需要先首先通过Safari浏览器下载一个描述文件(注:需要点击文章底部分享按钮,选择“Safari打开”该新闻,然后再点击前方链接即可安装描述文件),需要注意的是你要删除之前已经安装过的其它描述文件,然后按照提示安装描述文件并重启手机。

    另外除了通过安装描述文件OTA升级之外,也可以下载相应的固件通过iTunes升级,具体方法是下载固件后在桌面端打开最新版iTunes,同时按下“Shift+更新”选取将要刷入的固件即可。

    篇二:CISCO IOS升级详细步骤

    一、以3750为例:(适用于大部分接入层网络设备,TFTP最好使用tftp32,可以支持大文件)

    1、查看3750IOS信息

    WH-KJY-HJ-B16-3750-01#sh flash

    Directory of flash:/

    2 -rwx 1036Feb 7 2012 13:39:20 +08:00 vlan.dat

    3 -rwx 5 Oct 25 2012 16:11:52 +08:00 private-config.text

    5 -rwx 7691 Oct 25 2012 16:11:52 +08:00 config.text

    6 drwx192Mar 1 1993 08:07:03 +08:00 c3750-ipservices-mz.122-35.SE5 15998976 bytes total (5480960 bytes free)

    2、由于flash空间不够无法导入新版本的IOS,所以只能删除旧的IOS版本

    WH-KJY-HJ-B16-3750-01#cd flash:/c3750-ipservices-mz.122-35.SE5 //进入旧的目录下删除 WH-KJY-HJ-B16-3750-01#dir

    Directory of flash:/c3750-ipservices-mz.122-35.SE5/

    7 -rwx 8054867Mar 1 1993 08:05:34 +08:00 c3750-ipservices-mz.122-35.SE5.bin 8 drwx 4224Mar 1 1993 08:05:57 +08:00 html

    509 -rwx616Mar 1 1993 08:07:03 +08:00 info

    15998976 bytes total (5480960 bytes free)

    #delete flash:/c3750-ipservices-mz.122-35.SE5/c3750-ipservices-mz.122-35.SE5.bin //删除旧IOS版本(注意在操作这步前,将之前的IOS备份一份保存,以便出现问题可以回退) Delete filename [/c3750-ipservices-mz.122-35.SE5/c3750-ipservices-mz.122-35.SE5.bin]? Delete flash:/c3750-ipservices-mz.122-35.SE5/c3750-ipservices-mz.122-35.SE5.bin? [confirm] 删除完成后查看flash信息:

    WH-KJY-HJ-B16-3750-01#sh flash

    Directory of flash:/c3750-ipservices-mz.122-35.SE5/

    8 drwx 4224Mar 1 1993 08:05:57 +08:00 html

    509 -rwx616Mar 1 1993 08:07:03 +08:00 info

    15998976 bytes total (13536256 bytes free)

    3、导入新的IOS

    #copy tftp: c3750-ipservicesk9-mz.122-40.SE.bin flash: c3750-ipservicesk9-mz.122-40.SE.bin

    4、查看新的IOS导入后flash信息

    WH-KJY-HJ-B16-3750-01#sh flash

    Directory of flash:/

    2 -rwx 1036Feb 7 2012 13:39:20 +08:00 vlan.dat

    3 -rwx 5 Oct 25 2012 16:11:52 +08:00 private-config.text

    4 -rwx 9975530Mar 5 2013 17:59:01 +08:00 c3750-ipservicesk9-mz.122-40.SE.bin5 -rwx 7691 Oct 25 2012 16:11:52 +08:00 config.text

    6 drwx128Mar 5 2013 17:53:23 +08:00 c3750-ipservices-mz.122-35.SE5 //不带bin后缀这种事目录)

    15998976 bytes total (3560448 bytes free)

    WH-KJY-HJ-B16-3750-01#sh boot

    BOOT path-list

    flash:c3750-ipservices-mz.122-35.SE5/c3750-ipservices-mz.122-35.SE5.bin

    Config file: flash:/config.text

    Private Config file : flash:/private-config.text

    Enable Break : no

    Manual Boot: no

    HELPER path-list :

    Auto upgrade : yes

    Auto upgrade path:

    5、更改设备IOS启动顺序,并保存

    WH-KJY-HJ-B16-3750-0(config)#boot sys flash:/c3750-ipservicesk9-mz.122-40.SE.bin

    WH-KJY-HJ-B16-3750-0(config)#end

    WH-KJY-HJ-B16-3750-01#wr

    Building configuration...

    [OK]

    6、查看设备IOS启动项是否是新升级的ios名称

    WH-KJY-HJ-B16-3750-01#sh boot

    BOOT path-list: flash:/c3750-ipservicesk9-mz.122-40.SE.bin

    Config file: flash:/config.text

    Private Config file : flash:/private-config.text

    Enable Break : no

    Manual Boot: no

    HELPER path-list :

    Auto upgrade : yes

    Auto upgrade path:

    7、启动项正常后,重启网络设备

    WH-KJY-HJ-B16-3750-01#reload

    :

    二、堆叠设备的IOS升级(以C3750为例)

    1、相关配置信息

    WH-KJY-HJ-B14-3750-01#sh ver

    Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

    Copyright (c) 1986-2007 by Cisco Systems, Inc.

    Compiled Thu 19-Jul-07 19:15 by nachen

    Image text-base: 0x00003000, data-base: 0x01080000

    ROM: Bootstrap program is C3750 boot loader

    BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEE3, RELEASE SOFTWARE (fc1)

    WH-KJY-HJ-B14-3750-01 uptime is 51 weeks, 6 days, 7 hours, 13 minutes

    System returned to ROM by power-on

    System restarted at 10:23:38 beijing Wed Mar 7 2012

    System image file is "flash:c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin"

    cisco WS-C3750G-12S (PowerPC405) processor (revision W0) with 118784K/12280K bytes of memory.

    Processor board ID FDO1334Y12V

    Last reset from power-on

    2 Virtual Ethernet interfaces

    24 Gigabit Ethernet interfaces

    The password-recovery mechanism is enabled.

    512K bytes of flash-simulated non-volatile configuration memory.

    Base ethernet MAC Address : 00:26:CA:A5:9A:00

    Motherboard assembly number : 73-9678-11

    Power supply part number : 341-0048-03

    Motherboard serial number : FDO13340G0J

    Power supply serial number: DTN1330301J

    Model revision number : W0

    Motherboard revision number : A0

    Model number : WS-C3750G-12S-S

    System serial number: FDO1334Y12V

    Top Assembly Part Number : 800-25856-09

    Top Assembly Revision Number : A0

    Version ID : V11

    CLEI Code Number : COMX310ARA

    Hardware Board Revision Number : 0x06

    SwitchPorts Model SW Version SW Image ----------- ----- ---------- ----------

    * 112 WS-C3750G-12S12.2(35)SE5 C3750-IPBASE-M212 WS-C3750G-12S12.2(35)SE5 C3750-IPBASE-M

    Switch 02

    ---------

    Switch Uptime : 51 weeks, 6 days, 7 hours, 11 minutes

    Base ethernet MAC Address : 00:26:CB:75:22:00

    Motherboard assembly number : 73-9678-11

    Power supply part number : 341-0048-03

    Motherboard serial number : FDO13340J4S

    Power supply serial number: LIT133203Y3

    Model revision number : W0

    Motherboard revision number : A0

    Model number : WS-C3750G-12S-S

    System serial number: FDO1334Y16U

    Top assembly part number : 800-25856-09

    Top assembly revision number : A0

    Version ID : V11

    CLEI Code Number : COMX310ARA

    Configuration register is 0xF

    WH-KJY-HJ-B14-3750-01#sh boot

    BOOT path-list: flash:c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin Config file: flash:/config.text

    Private Config file : flash:/private-config.text

    Enable Break : no

    Manual Boot: no

    HELPER path-list :

    Auto upgrade : yes

    Auto upgrade path:

    -------------------

    Switch 2

    -------------------

    BOOT path-list: flash:c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin Config file: flash:/config.text

    Private Config file : flash:/private-config.text

    Enable Break : no

    Manual Boot: no

    HELPER path-list :

    Auto upgrade : no

    Auto upgrade path:

    WH-KJY-HJ-B14-3750-01#dir

    Directory of flash:/

    2 -rwx856Mar 1 1993 08:01:03 +08:00 vlan.dat

    4 -rwx 6287 Oct 25 2012 16:07:34 +08:00 config.text

    5 -rwx 5 Oct 25 2012 16:07:34 +08:00 private-config.text

    510 drwx192Mar 1 1993 08:09:18 +08:00 c3750-ipbase-mz.122-35.SE5

    15998976 bytes total (6363136 bytes free)

    2、删除旧的IOS

    #delete flash1:/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin

    Delete filename [/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin]?

    Delete flash:/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin? [confirm] #delete flash2:/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin

    Delete filename [/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin]?

    Delete flash2:/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin? [confirm]

    3、拷贝新的IOS到flash中

    #copy tftp: c3750-ipservicesk9-mz.122-40.SE.bin flash1: c3750-ipservicesk9-mz.122-40.SE.bin

    4、查看导入新的IOS后flash信息

    WH-KJY-HJ-B14-3750-01#sh flash

    Directory of flash:/

    2 -rwx856Mar 1 1993 08:01:03 +08:00 vlan.dat

    3 -rwx 9975530Mar 5 2013 17:41:13 +08:00 c3750-ipservicesk9-mz.122-40.SE.bin4 -rwx 6287 Oct 25 2012 16:07:34 +08:00 config.text

    5 -rwx 5 Oct 25 2012 16:07:34 +08:00 private-config.text

    510 drwx128Mar 5 2013 17:36:02 +08:00 c3750-ipbase-mz.122-35.SE5

    15998976 bytes total (3562496 bytes free)

    WH-KJY-HJ-B14-3750-01#sh flash1

    Directory of flash:/

    2 -rwx856Mar 1 1993 08:01:03 +08:00 vlan.dat

    3 -rwx 9975530Mar 5 2013 17:41:13 +08:00 c3750-ipservicesk9-mz.122-40.SE.bin4 -rwx 6287 Oct 25 2012 16:07:34 +08:00 config.text

    5 -rwx 5 Oct 25 2012 16:07:34 +08:00 private-config.text

    510 drwx128Mar 5 2013 17:36:02 +08:00 c3750-ipbase-mz.122-35.SE5

    15998976 bytes total (3562496 bytes free)

    WH-KJY-HJ-B14-3750-01#sh flash2

    Directory of flash2:/

    2 -rwx856Mar 1 1993 08:01:06 +08:00 vlan.dat

    3 -rwx 6287 Oct 25 2012 16:07:34 +08:00 config.text

    4 -rwx 5 Oct 25 2012 16:07:34 +08:00 private-config.text

    6 drwx128Mar 5 2013 17:36:37 +08:00 c3750-ipbase-mz.122-35.SE5

    篇三:CISCO路由器IOS升级方法总结(比较精典)

    前不久,朋友在对一台带语音模快的CISCO2610进行IOS升级时,由于路由器的内存(flash)为8M,IOS软件为7M多,升级后路由器无法正常启动。启动后到rommon 1 >状态,请求帮助。由于本人长期从事计算机网络管理工作,在对CISCO路由器的长期日常维护和管理实践中积累了一定的经验。现总结归纳出CISCO路由器IOS映像升级的几种方法,供广大网络爱好者或同仁参考。在介绍CISCO路由器IOS升级方法前,有必要对Cisco路由器的存储器的相关知识作以简单介绍。路由器与计算机相似,它也有内存和操作系统。在Cisco路由器中,其操作系统叫做互连网操作系统(Internetwork Operating System),常简称为IOS.路由器的存储器主要有:

    ROM:只读存储器包含路由器正在使用的IOS的一份副本;

    RAM:IOS将随机访问存储器分成共享和主存。主要用来存储运行中的路由器配置和与路由协议有关的IOS数据结构;

    FLASH (闪存):用来存储IOS软件映像文件,闪存是可以擦除内存,它能够用IOS的新版本覆写,IOS升级主要是闪存中的IOS映像文件进行更换。

    NVRAM:非易失性随机访问存储器,用来存储系统的配置文件。

    IOS升级方法一

    在对能够正常启动的CISCO路由器的IOS进行升级时,比较简单。具体步骤如下:

    1、寻找一种TFTP服务器软件(有CISCO公司的TFTPServer或3COM公司的3Cserver等,在升级较大IOS映象文件时,建议用3Cserver),安装在一台计算机上,将要升级的IOS映象文件拷贝到相关的目录中(例:D:\),并运行TFTP服务器软件,通过菜单设置Root目录为拷贝IOS映象文件所在目录(如D:\)。假设该计算机的IP地址为10.32.10.1;

    2、连接路由器的console口与PC机的COM1,使用PC的超级终端软件访问路由器,将路由器的地址设为10.32.10.32(与计算机的IP地址同网段即可)。建议在进行IOS升级前将原有IOS文件备份下来,防止待升级的IOS文件存在问题不可用;

    QUOTE:Router# dir flash: (查看目前IOS映象文件名,也可用Router#Show version)

    Directory of flash:/

    1 -rw- 5998292 C2600-I-MZ.122-11.BIN

    8388608 bytes total (2390252 bytes free)

    Router#copy flash tftp(备份IOS文件)

    Source filename []?c2600-i-mz.122-11.bin

    Address or name of remote host []? 10.32.10.1 (TFTP服务器地址)

    Destination filename [c2600-i-mz.122-11.bin]?

    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    5998292 bytes copied in 324.071 secs (18509 bytes/sec)

    Router# 3、对路由器进行IOS升级;

    QUOTE:Router#copy tftp flash

    Address or name of remote host []? 10.32.10.1 (TFTP服务器地址)

    Source filename []? c2600-i-mz.122-11.bin(需升级的新IOS映象文件名)

    Destination filename [c2600-i-mz.122-11.bin]?

    Do you want to over write? [confirm]

    Accessing tftp://10.32.10.1/c2600-i-mz.122-11.bin……

    Erase flash: before copying? [confirm]

    Erasing the flash filesystem will remove all files! Continue? [confirm]

    Erasing device…… eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ……erasedee

    Erase of flash: complete

    Loading c2600-i-mz.122-11.bin from 10.32.10.1 (via Ethernet0/0): !!!!!!!!!!!!!!

    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    [OK - 5998292 bytes]

    Verifying checksum…… OK (0xA0C0)

    5998292 bytes copied in 318.282 secs (18846 bytes/sec)

    Router# IOS升级方法二

    由于升级失败后或者路由器的config-register寄存器值为0x2101时,开启路由器时、或者在开启(某些型号)Cisco路由器的电源开关后30秒内按下Ctrl+break键,中断路由器的正常启动,路由器都会进入rom监视模式,即Router(boot)>,在这种情形下,对路由器的IOS进行升级,也比较简单。首先进入特权模式下,即

    QUOTE:Router(boot)>en

    Router(boot)#其他升级步骤同方法一,即:执行copy tftp flash命令,对IOS进行升级。升级完成后,不要忘了修改config-register寄存器值为0x2102(恢复正常值)。

    QUOTE:Router(boot)# t

    Router(boot)( config)# config-register 0x2102

    Router(boot)( config)#exit

    Router(boot)#wr

    Router(boot)#reload重启即可。

    [page]

    IOS升级方法三

    由于不小心使用了命令erase flash或升级失败后或在开启(某些型号)Cisco路由器的电源开关后30秒内按下Ctrl+break键,中断路由器的正常启动,路由器都会进入rom监视模式,即 rommon 1>,在这种情形下,对路由器的IOS进行升级,情况要稍微复杂一点。在rommon 1>状态下,可键?请求帮助。(1为命令行序号,每执行1条命令自动加1)

    QUOTE:rommon 1 > ?

    aliasset and display aliases command

    boot boot up an external process

    breakset/show/clear the breakpoint

    confreg configuration register utility

    cont continue executing a downloaded image

    context display the context of a loaded image

    cookie display contents of cookie PROM in hex

    dev list the device table

    dir list files in file system

    dis display instruction stream

    dnld serial download a program module

    frameprint out a selected stack frame

    help monitor builtin command help

    history monitor command history

    meminfo main memory information

    repeat repeat a monitor command

    resetsystem reset

    set display the monitor variables

    stackproduce a stack trace

    sync write monitor environment to NVRAM

    sysret print out info from last system return

    tftpdnldtftp image download

    unalias unset an alias

    unsetunset a monitor variable

    xmodem x/ymodem image download

    rommon 2 >在rommon 1>状态下有两种升级IOS方法。

    (一)、通过Xmodem命令(注:Xmodem与实际的modem没有任何联系 只是一个传输协

    议 数据是通过终端的串口和路由器的Console口灌进去的)升级IOS,具体步骤如下:

    1、用Cisco原配的线缆连接路由器的console口与PC机的COM1,使用PC机的超级终端软件访问路由器,这时不需要对PC和路由器配置任何地址。

    2、在这个模式下,输入Xmodem命令,即:

    QUOTE:rommon 2 > xmodem -c c2600-i-mz.122-11.bin

    (-c是带校验,c2600-i-mz.122-11.bin为存放在PC机上的IOS映像文件)

    WARNING: All existing data in bootflash will be lost!

    Invoke this application only for disaster recovery.

    Do you wish to continue? y/n [n]: y Ready to receive file c2600-i-mz.122-11.bin ……(此时在超级终端的传送栏目=> 选择发送文件选项 => 再选择Xmodem 并指明IOS映像文件所在的路径,按发送即开始上传IOS,等待时间很长,视IOS的大小和传输速度。)

    QUOTE:Erasing flash at 0x607c0000

    program flash location 0x605b0000

    Download Complete!

    传完以后,对整个系统初始化 显示如下:

    QUOTE:program load complete, entry point: 0x80008000, size: 0x5b85e0

    Self decompressing the image :

    [OK]

    Smart Init is disabled. IOMEM set to: 10

    Using iomem percentage: 10

    Restricted Rights Legend

    Use, duplication, or disclosure by the Government is

    subject to restrictions as set forth in subparagraph


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