Reset Password Brocade 8/24 sanswitch: HP B-Series 8/24c Blade Switch Modul

Reset Password Brocade 8/24 sanswitch: HP B-Series 8/24c Blade Switch Modul

Reset Password Brocade 8/24 sanswitch: HP B-Series 8/24c Blade Switch Modul – HP B-Series 8/24c Blade Switch – Cannot Enter BIOS to Reset Passwords

Issue

Bacaan Lainnya

To reset the passwords on B-series switches, you need to reboot the switch and hit <ESC> during startup. The 8/24c switches do not accept the input of the <ESC> and continue to boot normally, so the passwords cannot be reset.

Solution

Brocade engineering has reproduced the issue; they state that the problem is that the 8/24c switch does not support flow control. They issued the following procedure as a workaround:

1.      In an OA CLI session, enter connect interconnect x to connect to the serial screen for interconnect x.

2.      Ctrl + Shift + _

3.      Select Change settings .

4.      Select Remote Port .

5.      Select None for Flow Control.

6.      In a separate CLI session, reset the interconnect. Resetting should also be possible via the Reset virtual button in the OA GUI.

7.      In the first CLI session, hitting <ESC> during interconnect boot will now enter single-user mode.

At this point, you should be able to continue with the normal password reset procedure.

user

user ; admin

Pass=password*1

Post options

‎04-19-2010 08:10 AM

The exact procedure is the following

Reset Password Brocade 8/24 sanswitch: HP B-Series 8/24c Blade Switch Modul
Reset Password Brocade 8/24 sanswitch: HP B-Series 8/24c Blade Switch Modul

Details

On 8Gb Brocade switches, if the Boot PROM password is not set(or it is set and known) and need to recover root password (in case it was set previously and forgotten), then follow the below procedure to set all the passwords to factory default (Factory defined user IDs: root, factory, admin and user, Default password: password):

1. Connect the serial console to the SAN switch (or director). (Default serial console settings: Baud rate â 9600, Data bits â 8, Parity â none, Stop bits -1, Flow control â none).

2. Reboot the switch

3. Press ESC at the message â Hit ESC to stop autoboot: â , the Boot PROM menu displays with the following options:

1) Start system.

2) Recover password.

3) Enter command shell.

Option?

4. Type â 3â to Enter Command shell.

1) Start system.

2) Recover password.

3) Enter command shell.

Option? 3

Boot PROM password has not been set.

=>

5. Run the â printenvâ command to check the environment variables (This step is optional).

Sample output of â printenvâ from a Brocade 8Gb switch:

=> printenv

AutoLoad=yes

BootromVerbose=no

InitTest=MEM()

LoadIdentifiers=Fabric Operating System;Fabric Operating System

OSLoadOptions=quiet

OSLoader=ATA()0x8c047;ATA()0x14e978

OSRootPartition=hda1;hda2

SkipWatchdog=yes

baudrate=9600

bootcmd=setenv bootargs mem=${mem} ${OSLoadOptions};ataboot;bootm 0x400000

bootdelay=20

ethact=ppc_4xx_eth0

ethaddr=00:05:1E:5B:4D:C3

hostname=sequoia

initrd_high=0x20000000

mem=520192k

preboot=echo;echo Type “run flash_nfs” to mount root filesystem over NFS;echo

netdev=eth0

consoledev=ttyS1

ramdiskaddr=400000

ramdiskfile=your.ramdisk.u-boot

stderr=serial

stdin=serial

stdout=serial

ver=U-Boot 1.1.3 (Apr 15 2008 – 19:19:34)

Environment size: 631/4080 bytes

Sample output of â printenvâ from a Brocade 4Gb switch:

> printenv

AutoLoad=yes

ENET_MAC=00051E0343E3

InitTest=MEM()

LoadIdentifiers=Fabric Operating System;Fabric Operating System

OSLoadOptions=quiet;quiet

OSLoader=ATA()0x3c020;ATA()0x6b348

OSRootPartition=hda1;hda2

SkipWatchdog=yes

6. Set the environment variable â OSLoadOptionsâ to single (or â s)

=> setenv OSLoadOptions single

(Note: On 4Gb switches, the setenv requires â =â as well:

setenv OSLoadOptions=single )

7. Run â printenvâ command to verifyt the new value of â OSLoadOptionsâ :

=> printenv

AutoLoad=yes

BootromVerbose=no

InitTest=MEM()

LoadIdentifiers=Fabric Operating System;Fabric Operating System

OSLoadOptions=single

OSLoader=ATA()0x8c047;ATA()0x14e978

OSRootPartition=hda1;hda2

SkipWatchdog=yes

baudrate=9600

bootcmd=setenv bootargs mem=${mem} ${OSLoadOptions};ataboot;bootm 0x400000

bootdelay=20

ethact=ppc_4xx_eth0

ethaddr=00:05:1E:5B:4D:C3

hostname=sequoia

initrd_high=0x20000000

mem=520192k

preboot=echo;echo Type “run flash_nfs” to mount root filesystem over NFS;echo

netdev=eth0

consoledev=ttyS1

ramdiskaddr=400000

ramdiskfile=your.ramdisk.u-boot

stderr=serial

stdin=serial

stdout=serial

ver=U-Boot 1.1.3 (Apr 15 2008 – 19:19:34)

Environment size: 652/4080 bytes

8. Run the command â bootâ ( on 4 Gb switches, run the command â autoâ )

=> boot

Note: The rest of the steps are same for all switches with Linux based FOS (ver 4.1 and above).

9. After the switch boot in single user mode, remount the / partition as read/write:

sh-2.04# mount -o remount,rw,noatime /

10. Mount the second partition to /mnt (this will get from the value of â OSRootPartitionâ variable in â printenvâ output â usually it will be â hda2â , that is, /dev/hda2)

sh-2.04# mount /dev/hda2 /mnt

11. Verify the mounted file systems by running the â mountâ command:

sh-2.04# mount

/dev/root on / type unknown (rw,noatime)

none on /proc type proc (rw)

none on /dev/pts type devpts (rw,mode=620)

none on /tmp type ramfs (rw)

/dev/hda2 on /mnt type ext3 (rw)

12. Run the â passwddefaultâ command as follows:

sh-2.04# /sbin/passwddefault

13. Reboot the switch.

sh-2.04# reboot â f

After reboot, login to the switch using username â adminâ , password â passwordâ and set the new passwords for root, factory, admin and user accounts.

For details about the other password recovery methods on Brocade SAN switches (and Directors) with Linux based FOS (FOS 4.1 and above), refer the engineering advisory: http://h41302.www4.hp.com/km/saw/view.do?docId=emr_na-c01227153-2 .

For all types of password recovery methods on Brocade switches and Directors(except Boot PROM password recovery on 8Gb switches), refer the â Fabric OS Password Recovery Notesâ from Brocade. Authorized users can download this manual from GCC SAN sharepoint portal (refer the SAW article: http://h41302.www4.hp.com/km/saw/view.do?docId=emr_na-c00861444-5 ).

Pos terkait

Tinggalkan Balasan

Alamat email Anda tidak akan dipublikasikan. Ruas yang wajib ditandai *