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【原创】3560X IOS 从12.X 升级到15.X 耗时30-40分钟

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发表于 2017-11-29 08:59:10 | 显示全部楼层 |阅读模式
最近升级一台老设备3560X 交换机,原来的IOS  12.2(55) 不支持VRRP ,查文档需要升级IOS 来支持(12.2(58)and later),所以打算升级IOS 到15.X ,升级后重启过程竟然耗时30-40 分钟(正常只需要2 、3分钟),以前升级过,所以知道是正常情况,但是可能很多人没有升级过,出现一堆PSSSSSPSSSSSSSPSSSS 会很担心是不是处问题了,这里分享出来给有需要的朋友,请耐心等待,不要重启断电。

Copy iosSwitch#copy tftp: flash:
Address or name of remote host [192.168.2.100]?
Source filename [c3560e-ipbasek9-mz.150-2.SE8.bin]?
Destination filename [c3560e-ipbasek9-mz.150-2.SE8.bin]?
Accessing tftp://192.168.2.100/c3560e-ipbasek9-mz.150-2.SE8.bin...
Loading c3560e-ipbasek9-mz.150-2.SE8.bin from 192.168.2.100 (via Vlan1): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK – 20305408 bytes]

20305408 bytes copied in 147.833 secs (137354 bytes/sec)
5.4 verify md5 valueSwitch#verify /md5 flash:c3560e-ipbasek9-mz.150-2.SE8.bin
…………………………………………………………………………………………………………………………………….
(Omit)
…………………………………………………………………………………………………………………………………………..Done!
verify /md5 (flash:c3560e-ipbasek9-mz.150-2.SE8.bin) = fea9c868b1fdf8b385d58046786df4b2
5.5 confirm the new ios in the flashSwitch#dir flash:
Directory of flash:/

    2  -rwx        8225  Jan 31 2013 05:46:23 +00:00  config.text.renamed
    3  -rwx         976  Jan 17 2013 07:05:24 +00:00  vlan.dat.renamed
  503  -rwx        1048   Mar 1 1993 00:01:31 +00:00  multiple-fs
    4  -rwx    20305408   Mar 1 1993 00:08:29 +00:00  c3560e-ipbasek9-mz.150-2.SE8.bin
    5  -rwx          24  Jan 31 2013 05:46:23 +00:00  private-config.text.renamed
    6  drwx         512   Mar 1 1993 00:08:34 +00:00  c3560e-universalk9-mz.122-55.SE5

57671680 bytes total (17539072 bytes free)


5.6. Activate new IOS for next bootSwitch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#boot system flash:c3560e-ipbasek9-mz.150-2.SE8.bin
Switch(config)#exit
Switch#wr
Building configuration…
[OK]

Switch#show boot
BOOT path-list      : flash:c3560e-ipbasek9-mz.150-2.SE8.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   :
NVRAM/Config file
      buffer size:   524288
Timeout for Config
          Download:    0 seconds
Config Download
       via DHCP:       disabled (next boot: disabled)

Switch#dir flash:c3560e-universalk9-mz.122-55.SE5
Directory of flash:/c3560e-universalk9-mz.122-55.SE5/

    7  drwx        5632   Mar 1 1993 00:06:20 +00:00  html
  500  -rwx    14581903   Mar 1 1993 00:07:17 +00:00  c3560e-universalk9-mz.122-55.SE5.bin
  501  -rwx     1024000   Mar 1 1993 00:08:29 +00:00  pucode_bundle.dat
  502  -rwx         533   Mar 1 1993 00:08:34 +00:00  info

57671680 bytes total (17533440 bytes free)
5.7 Reboot switchSwitch#reload
Proceed with reload? [confirm]

*Mar  1 00:14:22.986: %SYS-5-RELOAD: Reload requested by console. Reload reason: Reload command
6. New Image Booting Console Output(This is the first reboot.)
Using driver version 1 for media type 2
Base ethernet MAC Address: e4:13:11:c7:99:00
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash…
mifs[2]: 10 files, 1 directories
mifs[2]: Total bytes     :    2097152
mifs[2]: Bytes used      :     612352
mifs[2]: Bytes available :    1484800
mifs[2]: mifs fsck took 2 seconds.
mifs[3]: 0 files, 1 directories
mifs[3]: Total bytes     :    4194304
mifs[3]: Bytes used      :       1024
mifs[3]: Bytes available :    4193280
mifs[3]: mifs fsck took 3 seconds.
mifs[4]: 5 files, 1 directories
mifs[4]: Total bytes     :     524288
mifs[4]: Bytes used      :       9216
mifs[4]: Bytes available :     515072
mifs[4]: mifs fsck took 0 seconds.
mifs[5]: 5 files, 1 directories
mifs[5]: Total bytes     :     524288
mifs[5]: Bytes used      :       9216
mifs[5]: Bytes available :     515072
mifs[5]: mifs fsck took 1 seconds.
mifs[6]: 494 files, 11 directories
mifs[6]: Total bytes     :   57671680
mifs[6]: Bytes used      :   40138240
mifs[6]: Bytes available :   17533440
mifs[6]: mifs fsck took 43 seconds.
…done Initializing Flash.
done.
Loading “flash:c3560e-ipbasek9-mz.150-2.SE8.bin“…@@@@@@@@@@@@@@@@@
(Omit)
@@@@@@@@@@@@@@@@@@@@@
File “flash:c3560e-ipbasek9-mz.150-2.SE8.bin” uncompressed and installed, entry point: 0x3000
executing…

              Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software – Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706


Cisco IOS Software, C3560E Software (C3560E-IPBASEK9-M), Version 15.0(2)SE8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Wed 13-May-15 23:23 by prod_rel_team
HULC:Collect Entropy thread starting on box…
Initializing flashfs…
Using driver version 3 for media type 1
mifs[4]: 0 files, 1 directories
mifs[4]: Total bytes     : 6838272
mifs[4]: Bytes used      : 1024
mifs[4]: Bytes available : 6837248
mifs[4]: mifs fsck took 1 seconds.
mifs[4]: Initialization complete.

Using driver version 3 for media type 2
mifs[7]: 10 files, 1 directories
mifs[7]: Total bytes     : 2097152
mifs[7]: Bytes used      : 612352
mifs[7]: Bytes available : 1484800
mifs[7]: mifs fsck took 0 seconds.
mifs[7]: Initialization complete.

mifs[8]: 0 files, 1 directories
mifs[8]: Total bytes     : 4194304
mifs[8]: Bytes used      : 1024
mifs[8]: Bytes available : 4193280
mifs[8]: mifs fsck took 0 seconds.
mifs[8]: Initialization complete.

mifs[9]: 5 files, 1 directories
mifs[9]: Total bytes     : 524288
mifs[9]: Bytes used      : 9216
mifs[9]: Bytes available : 515072
mifs[9]: mifs fsck took 1 seconds.
mifs[9]: Initialization complete.

mifs[10]: 5 files, 1 directories
mifs[10]: Total bytes     : 524288
mifs[10]: Bytes used      : 9216
mifs[10]: Bytes available : 515072
mifs[10]: mifs fsck took 0 seconds.
mifs[10]: Initialization complete.

mifs[11]: 494 files, 11 directories
mifs[11]: Total bytes     : 57671680
mifs[11]: Bytes used      : 40138240
mifs[11]: Bytes available : 17533440
mifs[11]: mifs fsck took 1 seconds.
mifs[11]: Initialization complete.

…done Initializing flashfs.
Checking for Bootloader upgrade..
Boot Loader upgrade not required (Stage 2)


FIPS: Flash Key Check : Begin
FIPS: Flash Key Check : End, Not Found, FIPS Mode Not Enabled

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: SF ASIC BIST : Begin
POST: SF ASIC BIST : End, Status Passed

POST: Switch Fabric Memory Tests : Begin
POST: Switch Fabric Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed


extracting front_end/front_end_ucode_info (309 bytes)
Software version is different so extracting
the whole bundle

front_end/ (directory)
extracting front_end/fe_type_4 (78520 bytes)
extracting front_end/fe_type_3 (78520 bytes)
extracting front_end/fe_type_2 (78520 bytes)
extracting front_end/fe_type_5_0 (594412 bytes)
extracting front_end/fe_type_5_3 (86370 bytes)
extracting front_end/fe_type_5_2 (25166 bytes)
extracting front_end/fe_type_5_1 (362114 bytes)
extracting front_end/front_end_ucode_info (309 bytes)
extracting ucode_info (77 bytes)

Front-end Microcode IMG MGR: Installed 4 image(s) in cache:

Front-end Microcode IMG MGR: found microcode images for 4 devices.
Image for front-end 0: flash:/front_end_ucode_cache/ucode.3
Image for front-end 0: flash:/front_end_ucode_cache/ucode.4
Image for front-end 0: flash:/front_end_ucode_cache/ucode.5
Image for front-end 0: flash:/front_end_ucode_cache/ucode.6

Front-end Microcode IMG MGR: Preparing to program device microcode…
Front-end Microcode IMG MGR: Preparing to program device[0]…594412 bytes.
Front-end Microcode IMG MGR: Programming device 0...rwRrrrrrrwssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssss
(Omit)(This step takes about 12 minutes. I was thinking it must be failed. The switch fan was making huge of noise during who Programming device process)
ssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssss
ssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssp
Front-end Microcode IMG MGR: Preparing to program device[0]…362114 bytes.
Front-end Microcode IMG MGR: Programming device

0…rrrrrrwssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsss
(Omit)(This step takes about 5 minutes.)
sssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssp
Front-end Microcode IMG MGR: Preparing to program device[0]…25166 bytes.
Front-end Microcode IMG MGR: Programming device

(This step takes about 1 minutes.)
0…rrrrrrwssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssss
sspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssss
sssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssss
sssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssssssp
Front-end Microcode IMG MGR: Preparing to program device[0]…86370 bytes.
Front-end Microcode IMG MGR: Programming device

(This step takes about 3 minutes.)
0…rrrrrrwssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssssssssssss
sspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssss
ssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspsssssssss
sssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspssssssssssssssssssspw
% Front-end Microcode IMG MGR: HW image is upgraded. MCU reset causes the switch to reload

(This is the second reboot.)


Cisco IOS Software, C3560E Software (C3560E-IPBASEK9-M), Version 15.0(2)SE8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Wed 13-May-15 23:23 by prod_rel_team
HULC:Collect Entropy thread starting on box…
Initializing flashfs…
Using driver version 3 for media type 1
mifs[4]: 0 files, 1 directories
mifs[4]: Total bytes     : 6838272
mifs[4]: Bytes used      : 1024
mifs[4]: Bytes available : 6837248
mifs[4]: mifs fsck took 1 seconds.
mifs[4]: Initialization complete.

Using driver version 3 for media type 2
mifs[7]: 10 files, 1 directories
mifs[7]: Total bytes     : 2097152
mifs[7]: Bytes used      : 612352
mifs[7]: Bytes used      : 612352
mifs[7]: Bytes available : 1484800
mifs[7]: mifs fsck took 0 seconds.
mifs[7]: Initialization complete.

mifs[8]: 0 files, 1 directories
mifs[8]: Total bytes     : 4194304
mifs[8]: Bytes used      : 1024
mifs[8]: Bytes available : 4193280
mifs[8]: mifs fsck took 0 seconds.
mifs[8]: Initialization complete.

mifs[9]: 5 files, 1 directories
mifs[9]: Total bytes     : 524288
mifs[9]: Bytes used      : 9216
mifs[9]: Bytes available : 515072
mifs[9]: mifs fsck took 1 seconds.
mifs[9]: Initialization complete.

mifs[10]: 5 files, 1 directories
mifs[10]: Total bytes     : 524288
mifs[10]: Bytes used      : 9216
mifs[10]: Bytes available : 515072
mifs[10]: mifs fsck took 0 seconds.
mifs[10]: Initialization complete.

mifs[11]: 494 files, 11 directories
mifs[11]: Total bytes     : 57671680
mifs[11]: Bytes used      : 40138240
mifs[11]: Bytes available : 17533440
mifs[11]: mifs fsck took 1 seconds.
mifs[11]: Initialization complete.

…done Initializing flashfs.
Checking for Bootloader upgrade..
Boot Loader upgrade not required (Stage 2)


FIPS: Flash Key Check : Begin
FIPS: Flash Key Check : End, Not Found, FIPS Mode Not Enabled

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: SF ASIC BIST : Begin
POST: SF ASIC BIST : End, Status Passed

POST: Switch Fabric Memory Tests : Begin
POST: Switch Fabric Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

extracting front_end/front_end_ucode_info (309 bytes)
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

POST: PortASIC Macsec Loopback Tests : Begin
POST: PortASIC Macsec Loopback Tests : End, Status Passed

POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed

Waiting for Port download…Complete


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C3560X-48 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Processor board ID FDOxxxxX0UH
Last reset from power-on
1 Virtual Ethernet interface
1 FastEthernet interface
52 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : E4:13:11:C7:99:00
Motherboard assembly number     : 73-12556-06
Motherboard serial number       : FDOxxxx0G0Q
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3560X-48T-S
Daughterboard assembly number   : 800-32786-02
Daughterboard serial number     : FDOxxxx03QT
System serial number            : FDOxxxxX0UH
Top Assembly Part Number        : 800-31330-03
Top Assembly Revision Number    : B0
Version ID                      : V03
CLEI Code Number                : COMJN00ARC
Hardware Board Revision Number  : 0x04

Switch Ports Model              SW Version            SW Image
—— —– —–              ———-            ———-
*    1 54    WS-C3560X-48       15.0(2)SE8            C3560E-IPBASEK9-M


Press RETURN to get started!


*Mar  1 00:00:06.601: Read env variable – LICENSE_BOOT_LEVEL =
*Jan  2 00:00:00.713: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c3560x Next reboot level = ipbase and License = ipbase
*Jan  2 00:01:34.237: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Jan  2 00:01:34.246: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Jan  2 00:01:37.895: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Jan  2 00:01:38.943: %DC-4-FILE_OPEN_WARNING: Not able to open flash:/dc_profile_dir/dc_default_profiles.txt
*Jan  2 00:01:38.943: %DC-6-DEFAULT_INIT_INFO: Default Profiles DB not loaded.
*Jan  2 00:01:39.740: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 inserted
*Jan  2 00:01:39.740: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 2 inserted
*Jan  2 00:01:39.740: %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding
*Jan  2 00:01:41.904: %SYS-5-CONFIG_I: Configured from memory by console
*Jan  2 00:01:43.834: %SYS-5-RESTART: System restarted —
Cisco IOS Software, C3560E Software (C3560E-IPBASEK9-M), Version 15.0(2)SE8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Wed 13-May-15 23:23 by prod_rel_team
*Jan  2 00:01:45.830: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to down
*Jan  2 00:01:46.837: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Jan  2 00:01:46.862: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
*Jan  2 00:01:48.582: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Jan  2 00:01:49.588: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up

Switch>en% Generating 1024 bit RSA keys, keys will be non-exportable…

Switch#
[OK] (elapsed time was 3 seconds)

*Jan  2 00:02:01.408: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Jan  2 00:02:01.718: %PKI-6-AUTOSAVE: Running configuration saved to NVRAM[OK]

Switch#
Switch#show ver
Cisco IOS Software, C3560E Software (C3560E-IPBASEK9-M), Version 15.0(2)SE8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Wed 13-May-15 23:23 by prod_rel_team

ROM: Bootstrap program is C3560E boot loader
BOOTLDR: C3560E Boot Loader (C3560X-HBOOT-M) Version 12.2(53r)SE2, RELEASE SOFTWARE (fc1)

Switch uptime is 2 minutes
System returned to ROM by power-on
System image file is “flash:c3560e-ipbasek9-mz.150-2.SE8.bin”


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

License Level: ipbase
License Type: Permanent
Next reload license Level: ipbase

cisco WS-C3560X-48 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Processor board ID FDOxxxxX0UH
Last reset from power-on
1 Virtual Ethernet interface
1 FastEthernet interface
52 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : E4:13:11:C7:99:00
–More–
*Jan  2 00:02:16.625: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed sMotherboard assembly number     : 73-12556-06
Motherboard serial number       : FDOxxxx0G0Q
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3560X-48T-S
Daughterboard assembly number   : 800-32786-02
Daughterboard serial number     : FDOxxx03QT
System serial number            : FDOxxxxX0UH
Top Assembly Part Number        : 800-31330-03
Top Assembly Revision Number    : B0
Version ID                      : V03
CLEI Code Number                : COMJN00ARC
Hardware Board Revision Number  : 0x04


Switch Ports Model              SW Version            SW Image
—— —– —–              ———-            ———-
*    1 54    WS-C3560X-48       15.0(2)SE8            C3560E-IPBASEK9-M


Configuration register is 0xF

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平均得分5 (2 评价)
发表于 2017-11-29 10:33:17 | 显示全部楼层
我这上次3850升级还有客户那边升级也有遇到一堆 sssssssssspssssssssssssssssssspsssssssssssssssssss的也在问,持续的时间也挺长的。不过出去喝杯水,聊聊天回来看看就好了。
只要升级的步骤对,IOS 校验没问题,就没问题。
有人知道这个阶段,是在进行什么内容的自检么?
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发表于 2017-11-30 15:34:17 | 显示全部楼层
出现一堆PSSSSSPSSSSSSSPSSSS
那是升级微代码,只要换了IOS版本,系统自动升级或者降级代码,与IOS进行匹配,属于正常现象。
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