CISCO ACS not booting - Starts up with GRUB mode

Could you please help me to resolve this issue

That is not what I want. I want user "test1" to be able to do this:
C
Username: test1
Enter PASSCODE:
C2960>en
Enter PASSCODE:
C2960#
In other words, test1 user has to type in his/her RSA token password to get
into exec mode. After that, he/she has to use the RSA token password to
get into enable mode. Each user can get into "enable" mode with his/her
RSA token mode.
The way you descripbed, it seemed like anyone in this group can go directly
into enable mode without password. This is not what I have in mind.
Any other ideas? Thanks.

Similar Messages

RSA SecurID and Cisco ACS integration for user(s) with enable mode

I thought I had this problem figured out but I guess not.
I have a Cisco 2621 router with IOS 12.2(15)T17. Behind the
router is a Gentoo linux, RSA SecurID 6.1 and Cisco ACS 3.2.
I use tacacs+ authentication for logging into the Cisco router
such as telnet and ssh. In the ACS I use "external user databases"
for authentication which proxy the request from the ACS over
to the RSA SecurID Server. I installed RSA Agents with
sdconf.rec file on the Cisco ACS server. I renamed "user group 1"
to be "RSA_SecurID" group. In the "External user databases" and
"database configurations" I assign SecurID to this "RSA_SecurID"
group.
Everything is working fine. In the "User Setup" I can see dynamic
user test1, test2,...testn listed in there as "dynamic users". In
other words, I can telnet into the router with my two-factor
SecurID.
The problem is that if test1 wants to go into "enable" mode with
SecurID login, I have to go into "test1" user setting and select
"TACACS+Enable Password" and choose "Use external database password".
After that, test1 can go into enable mode with his/her SecurID
credential.
Well, this works fine if I have a few users. The problem is that
I have about 100 users that I need to do this. The solution is
clearly not scalable. Is there a setting from group level that
I can do this?
Any ACS "experts" want to help me out here? Thanks.

That is not what I want. I want user "test1" to be able to do this:
C
Username: test1
Enter PASSCODE:
C2960>en
Enter PASSCODE:
C2960#
In other words, test1 user has to type in his/her RSA token password to get
into exec mode. After that, he/she has to use the RSA token password to
get into enable mode. Each user can get into "enable" mode with his/her
RSA token mode.
The way you descripbed, it seemed like anyone in this group can go directly
into enable mode without password. This is not what I have in mind.
Any other ideas? Thanks.

Ask the Expert: Cisco UCS Troubleshooting Boot from SAN with FC and iSCSI

Welcome to this Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Cisco UCS Troubleshooting Boot from SAN with FC and iSCSI with Vishal Mehta and Manuel Velasco.
The current industry trend is to use SAN (FC/FCoE/iSCSI) for booting operating systems instead of using local storage.
Boot from SAN offers many benefits, including:
Server without local storage can run cooler and use the extra space for other components.
Redeployment of servers caused by hardware failures becomes easier with boot from SAN servers.
SAN storage allows the administrator to use storage more efficiently.
Boot from SAN offers reliability because the user can access the boot disk through multiple paths, which protects the disk from being a single point of failure.
Cisco UCS takes away much of the complexity with its service profiles and associated boot policies to make boot from SAN deployment an easy task.
Vishal Mehta is a customer support engineer for Cisco’s Data Center Server Virtualization TAC team based in San Jose, California. He has been working in the TAC for the past three years with a primary focus on data center technologies such as Cisco Nexus 5000, Cisco UCS, Cisco Nexus 1000v, and virtualization. He has presented at Cisco Live in Orlando 2013 and will present at Cisco Live Milan 2014 (BRKCOM-3003, BRKDCT-3444, and LABDCT-2333). He holds a master’s degree from Rutgers University in electrical and computer engineering and has CCIE certification (number 37139) in routing and switching and service provider.
Manuel Velasco is a customer support engineer for Cisco’s Data Center Server Virtualization TAC team based in San Jose, California. He has been working in the TAC for the past three years with a primary focus on data center technologies such as Cisco UCS, Cisco Nexus 1000v, and virtualization. Manuel holds a master’s degree in electrical engineering from California Polytechnic State University (Cal Poly) and VMware VCP and CCNA certifications.
Remember to use the rating system to let Vishal and Manuel know if you have received an adequate response.
Because of the volume expected during this event, our experts might not be able to answer every question. Remember that you can continue the conversation in the Data Center community, under subcommunity Unified Computing, shortly after the event. This event lasts through April 25, 2014. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

Hello Evan
Thank you for asking this question. Most common TAC cases that we have seen on Boot-from-SAN failures are due to misconfiguration.
So our methodology is to verify configuration and troubleshoot from server to storage switches to storage array.
Before diving into troubleshooting, make sure there is clear understanding of this topology. This is very vital with any troubleshooting scenario. Know what devices you have and how they are connected, how many paths are connected, Switch/NPV mode and so on.
Always try to troubleshoot one path at a time and verify that the setup is in complaint with the SW/HW interop matrix tested by Cisco.
Step 1: Check at server
a. make sure to have uniform firmware version across all components of UCS
b. Verify if VSAN is created and FC uplinks are configured correctly. VSANs/FCoE-vlan should be unique per fabric
c. Verify at service profile level for configuration of vHBAs - vHBA per Fabric should have unique VSAN number
Note down the WWPN of your vhba. This will be needed in step 2 for zoning on the SAN switch and step 3 for LUN masking on the storage array.
d. verify if Boot Policy of the service profile is configured to Boot From SAN - the Boot Order and its parameters such as Lun ID and WWN are extremely important
e. finally at UCS CLI - verify the flogi of vHBAs (for NPV mode, command is (from nxos) – show npv flogi-table)
Step 2: Check at Storage Switch
a. Verify the mode (by default UCS is in FC end-host mode, so storage switch has to be in NPIV mode; unless UCS is in FC Switch mode)
b. Verify the switch port connecting to UCS is UP as an F-Port and is configured for correct VSAN
c. Check if both the initiator (Server) and the target (Storage) are logged into the fabric switch (command for MDS/N5k - show flogi database vsan X)
d. Once confirmed that initiator and target devices are logged into the fabric, query the name server to see if they have registered themselves correctly. (command - show fcns database vsan X)
e. Most important configuration to check on Storage Switch is the zoning
Zoning is basically access control for our initiator to targets. Most common design is to configure one zone per initiator and target.
Zoning will require you to configure a zone, put that zone into your current zonset, then ACTIVATE it. (command - show zoneset active vsan X)
Step 3: Check at Storage Array
When the Storage array logs into the SAN fabric, it queries the name server to see which devices it can communicate.
LUN masking is crucial step on Storage Array which gives particular host (server) access to specific LUN
Assuming that both the storage and initiator have FLOGI’d into the fabric and the zoning is correct (as per Step 1 & 2)
Following needs to be verified at Storage Array level
a. Are the wwpn of the initiators (vhba of the hosts) visible on the storage array?
b. If above is yes then Is LUN Masking applied?
c. What LUN number is presented to the host - this is the number that we see in Lun ID on the 'Boot Order' of Step 1
Below document has details and troubleshooting outputs:
http://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ucs-b-series-blade-servers/115764-ucs-san-tshoot-00.html
Hope this answers your question.
Thanks,
Vishal

Imac will not boot up, chimes with apple logo and beach ball spin??

imac will not boot up, chimes with apple logo and beach ball spin?? after installing adobe flash and up graded apple softeware

If your iMac came with or is running Lion, startup holding either the Command-R keys or the Option key and select the recovery partition and then use Disk Utility to repair the Macintosh HD.
see > OS X Lion: About Lion Recovery
If your running Snow Leopard or earlier OS X, pop in your Install DVD and startup holding either the Option or C key, then open and use Disk Utility to repair the Macintosh HD.
see > Mac OS X - Using Disk Utility to Repair a Disk

HT4463 I keep getting the message "The application could not be downloaded. The installation could not be started." with a "Retry" and "Cancel" button, I have been re-trying for several hours to no avail. What is the problem?

I keep getting the message "The application could not be downloaded. The installation could not be started." with a "Retry" and "Cancel" button, I have been re-trying for several hours to no avail. What is the problem?

You'll need to contact support and have them check your account
https://expresslane.apple.com/GetproductgroupList.action

Installed Yosemite update on MacBook Pro retina late 2013 will not boot flashing folder with ?

I just Installed Yosemite update on MacBook Pro retina late 2013 will not boot flashing folder with ?

dunno, Lynn--maybe Etrecheck. trying running disk utility to verify the status of your hard drive. That may give you a basic idea. Perhaps tech tool pro. As for it running hot, I can't say for sure. try shutting it down and using a vacuum clearner +crevice tool around the back of it. It's been my experience that hard drives usually fail without a lot of warning, luckily you have a backup. Afterwards you can say "Yup, that went bad". I've done a little research and found out that your MacBook Pro doesn't come with a conventional hard drive as such, but an SSD (solid state device) . It's upgradeable (up to 1 TB ) but not cheaply
go here for more info (OWC) :http://eshop.macsales.com. For right now, I'd recommend resetting the SMC/PMU, maybe zapping the pram . to do that, reboot, hold down Apple+Option, P+R keys while rebooting. Hold down for 3 chimes, let go and let it boot. as for the SMC thing....
I'm assuming your battery isn't removeable-shut down computer, plug in MagSafe cable . On built in keyboard, on left side, press Shift-Control-Option and power button at the same time. release all the keys and the power button. press power button again to turn on computer
that is all
John b

My MacBook Core 2 Duo will not boot up. In safe mode I see keychain problems and Mach 1102.

My MacBook Core 2 Duo will not boot up. In safe mode I see keychain problems and Mach 1102 and it keeps circling through the same error. Also the screen is so faint (pressing the F1 and F2 keys don't do anything). I got this from a friend and he didn't have any of the original discs. Any suggestions? From what I've read it's a problem with a recent update. I've never had a Mac so I'm trying to learn and fix it.

I just had an issue like this. I was able to boot up with an external firewire drive, although it was a lot of trouble. I think doing an option boot finally worked; holding down the option key, I eventually got to see the firewire drive was bootable, and booted from it.
I put the thing in verbose boot mode (command - v , I think; but please look it up. I have no Mac books at work to check). In verbose mode, you could see that the hard drive could not mount; the OS tried to do fsck, but it failed around 2/3 of the way, and the CPU was halted.
I was occasionally able to boot normally, but never in safe or single user modes; these do a disk test first, which invariably failed.
I could see from the system and console logs when I managed to get the firewire boot going that there were repeated errors trying to access drive s03, the internal SATA drive. The logs on the SATA drive showed huges numbers of errors. At a wild guess, for some reason a lot of sectors went bad all at once. There had been a some erratic behavior before, but I'd put that down to the single processor G5 problems. (these were non video related, just freezes).
Applecare wanted me to carry the huge thing into the local Apple store, but I persuaded them to just send me a replacment hard drive, which they did. The new one works perfectly.
PowerMac G5 1.8 SP (late 2004), 1.42 mhz 14 iBook Mac OS X (10.4.3) both with 1.5 GB Ram

Macbook Pro will not boot up / circle with line in it

Mid 2012 MacBook Pro bought brand new
OS X Yosemite
Core i7
16Gb memory (upgraded shortly purchase)
500Gb SATA
About a month ago my laptop started running really slow then locked up, I had to hard power down and every since it will not boot up, all I get is a circle with a line through it.
It will not boot to restore DVD
It will not open safe mode
it will not boot to USB
I have removed the memory (2 x 8gb) and tested one at a time did not help
Removed the HDD and tried to boot to DVD did not help
like I was saying above this all happened at once one min it was good then it locked and I have never got the OS to boot up again

I was going to say try single user Command/ S. but you tried that. You say you tried a dvd. What OS was on it. The 2012 Macbook Pro does not come with a bootable dvd, unless you make one . And it has to be an OS that is the same on newer than the year of the Macbook. Will it start to the recovery partition by Holding the option key or Option/ R at start. Also your machine is suppose to be able to boot to internet recovery using Command/Option/ R. Did you try that. Need to find out if it's the hard drive or something else. Having some kind of USB external boot drive would help. There is also internet hardware diagnostics by holding down Option/D at start up.

Cisco 891 not getting IP address with DHCP with latest IOS

Hi,
I have a few Cisco 891 routers that are configured as DHCP clients on the WAN interface.
For some reason when I boot the router with a late IOS, the router is not receiving an address.
It works just as expected with the older IOSes.
Any ideas of what changed?
This is how the interface is configured:
interface FastEthernet8
ip address dhcp
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
no cdp enable
This IOS does not work:
c890-universalk9-mz.154-3.M2.bin
While these do work:
c890-universalk9-mz.150-1.M7.bin
c890-universalk9-mz.151-2.T2.bin
c890-universalk9-mz.152-1.T1.bin
Doing a "show ip interface brief" shows that FastEthernet8 is unassigned with the affected IOS.
With the older IOSes there is an IP address.
I had to downgrade two routers due to this issue, and did not have plenty of time to troubleshoot.
Both of the routers are connected to DSL from the same ISP...
Anyone seen anything like this before?

Add another one to the list.
I have a MacBookPro3,1 that connects to WIFI no problem. It used to connect to ethernet when I originally bought it, however I've been using WIFI exclusively for the past 2 years.
Recently I had a need to connect via ethernet and it wouldn't work at home (apple airport router). I next tried connecting via ethernet at a friends house using a linksys WRT54G, no dice either. I have the computer in the lab today (University Network) and I get the same error. 3 different locations, 3 different routers, all same problem. It used to connect to home and university networks ethernet right away.
IP address assigned is 169.xxx.xxx.xxx - subnet - 255.255.0.0
no other info. It's showing up as connecting to the network, but unable to communicate with DHCP. It does work if I enter all of the information in manually.
At first I thought I had messed something up in networking preferences as I tend to play around with things alot. However I did a complete system format, and fresh install of OSX Lion and I still have the same problem, without any of my meddling around to confuse things.
What gives?

IMac with 10.6.6 will not boot from external with 10.4.11

My MacBook Pro with 10.6.6 will boot from that same external with 10.4.11 but the iMac does not. Why not?
1. When the iMac is starting up with the Option key depressed, the bootable 10.4.11 appears normally and can be selected. But when I click on the circle below the bootable icon, the computer freezes.
2. When I have the iMac running and try to change the startup volume via the Preferences, the bootable icons are present but are not active.
Is there a setting on the iMac I need to reset? Or, is it not possible to boot from the 10.4.11 external?
Specs:
MacBook Pro Processor - 2.16 GHz Intel Core Duo, Memory - 2 GB 667 MHz DDR2 SDRAM
iMac Processor - 3.06 GHz Intel Core i3, Memory - 4 GB 1333 MHz DDR3

The answer is dependent upon what version of OS your machines came with (and the install disks are machine/build specific) - no Mac can boot from a system older than what was supplied with the machine. So, if your MBP originally came with 10.4.x and you upgraded it since, it can still be booted from the earlier version. If your iMac came with 10.6.3 for instance, it can only be booted with 10.6.3 or later.

Powermac G4 will not boot from CD with OS10 install BUT will boot with OS 9

I have a Powermac G4 which had been running OS 10.38 or 39. The system on start up would sound the tones, the grey screen with Apple logo displays and the rotating clock at the bottom of the screen ultimately freezes and nothing more happens.
I presume that the hard drive is either smoked or corrupted so I buy a replacement drive and Tiger, and go through the following steps:
I disconnect the old drive and try to boot my g4 with Tiger install disks. The start up freezes in the same way as with old disk.
I find my old Panther install disks and the system freezes in the same way.
I then use my 9.2 install disk and the system boots and I get cannot see my new drive.
I disconnect my new drive, reconnect my old drive and re-boot with 9.2 and find my old drive mounts. Big Smile but...
here is the question:
Since I apparently have a still functional drive, why won't my install CD for Panther or DVD for Tiger not boot this system???? I do have a panasonic DVD/CD writer which is aftermarket if that might be the issue. If so would re-installing the apple CD player make a difference?
(I have also zapped the PRAM)
I am on the way out to try and find a copy of disk warrior to try and salvage my old drive. All help would be appreciated.
PowerMac G4 Mac OS X (10.3.9)

I had a really weird problem that might be something like you're experiencing. I was trying to get Tiger onto a "Yikes" PCI G4, and it would not boot up with the Tiger disk.I did everything I could come up with, and no luck. I spent a good bit of time here and over at macosx.com, and no one could figure it out. I finally just re-installed 10.2.8 on a partition, and for some unknown reason, the computer booted with the Tiger disk, and I was able to install. I let the people on the boards know it, but didn't go back to tell them what happened the next day. When I tried to restart, it would only boot into OS9. If I tried to force Tiger (like by choosing it as start-up) it would go to a black screen. Anyway, it ended up no go. If you'd like to go through all the things I did, here's the link to that thread:
http://macosx.com/forums/mac-os-x-system-mac-software/272035-cant-install-tiger- g4-pci-yikes.html
I would still like to know if there's some reason some "Yikes" models just can't deal with Tiger.
iMac IC2D 2.16GHz. TiBook 1Ghz, Sawtooth w/1.2 GHz owc upgr Mac OS X (10.4.6) 60GB Video iPod, 1GB ipod Shuffle

[SOLVED] Can not boot after mishap with clonezilla

Hi
I was trying to back up my computer with Clonezilla. It kept telling me that the drive I was trying to back up (the only hard drive in my laptop and only has Arch Linux installed on it) had a GPT and MBR partition table. I thought that this was odd so booted back into Arch Linux and loaded up gparted and it said that the drive was MBR. So I ran clonezilla again and it said about a command to run to remove the GPT if you are sure that you are using MBR so I went ahead (stupidly) and ran it thinking that everything would be ok and now I can not boot back into my Arch Linux. I just get a black screen with GRUB and a flashing cursor. I think the command that I ran was either:
gdisk -z /dev/sda
or
sdisk -z /dev/sda
I'm not too sure and I should have written it down or researched it first. (That will teach me.) I have booted the computer from a Knoppix DVD and can see all the partitions on the drive (root, swap and home) and also read all the data. I have tried to reinstall grub (install-grub /dev/sda deom the Arch install cd) but this has not worked. I hope that as will most things Linux I can fix this. Please can you point me in direction I need to go to fix this?
Thanks
Robert
Last edited by toca180 (2012-02-25 17:20:11)

Hi
I have fixed it. I ran testdisk from Knoppix and let it write out the partition table again as MBR then reinstalled grub from the Arch Linux install CD by doing the following from with in grub:
root (hd0,0)
setup (hd0)
Lesson learnt. I'll read and research before just blindly running commands again. Thank you all for reading.
Thanks
Robert

IMac Slow Boot/Start up with firewire disk connected

I have recently purchased a a WD FreeAgent 1Tb external disk, to use as a Time Machine drive.
Since connecting this drive, the boot time has increased from less than a minute to nearly 5 mins.
I presume my iMac is doing some kind of check of this drive, and because its 1TB it is taking an age. Is there anyway to get my computer to ignore this disk on start up?
Is this a problem with Leopard? IS it resolved in snow leopard.
I have read some posts that suggest unplugging the drive on each start up, is this really what i have to do?, as its a bit of a pain.

It is not a general problem with Leopard. I have a 750GB drive that is used for Time Machine (via USB 2.0), a FireWire external drive, up to three iPods (FireWire and USB), and sometimes a smaller emergency/maintenance startup external drive connected during startup, and the startup time is not noticeably affected based on what is or is not connected.
Can you explain which part of the startup sequence is being delayed. Is the screen still grey? Has the Apple logo appeared with the spinning wheel? Has the screen turned blue? Is it that last part, when the Desktop is being assembled on the screen?
Have you reset PRAM?
http://support.apple.com/kb/HT1379
Have you run Disk Utility and used +Repair Disk Permissions+ on your startup volume recently.
Since the issue seems to be related to this 1TB drive, have you run Disk Utility and used +Repair Disk+ on that drive, to check for disk directory or disk data corruption errors? Time Machine does some complex file management, so such errors are quite possible, and that may be the cause of the delay during startup.

HD not booting. Circle with a cross through it

Hi Everyone.
I was getting an issue with system prefs and opted to restart my MBP.
After the start up sound, for a split second it showed the Apple logo followed by a circle with a cross through it.
Then it proceeded to boot up on my BootCamp windows partition. So I know the HD is working.
So, I started up the MBP with an external firewire drive that had an older complete copy of my drive from my OEM 500GB HD before my upgrade to a new 1TB drive. Then I ran Disk Utilities, verified that the Drive was OK, ran repair disk permissions and then did a Directory reconstruction with DiskWarrior. I hoped that all of the above would fix the problem. Alas, it is still not booting up from the 1TB drive.
With the external boot, I can see everything on the internal drive ok. I thought it may have been a resource fork, but I don't know now.
Anyone have any suggestions of what else I should look for?
My last resort will be to wipe the drive and rebuild from Time Machine, but a month has passed since my last back up ( so some stuff may be missed out).

If you want to see if you can recover data, see my FAQ*:
http://www.macmaps.com/backup.html#RECOVER
The fact that Disk Warrior can't fix the system folder, means there is serious file corruption, which may be as a result of all the issues with your System Preferences.
If you were using any other system optimization software, any that clean system caches should be avoided. They can make System Preferences and the rest of the system misbehave because corrupted system cache files can make applications have a hard time starting up.

Cisco 2811 not booting

Hi,
A client has 2x2811 acting as Voice Gateway and backup Voice Gateway and both, after some undisclosed circumstances, are not booting.
After some troubleshooting a faulty memory DIMM was detected on the primary Voice Gateway. Still, DIMM replaced, it continued failing to boot. Tried the other router and the symptom was the same:
Cabvg010
Expected a checksum of 0xC117781E
*** System received a Software forced crash ***
signal= 0x17, code= 0x5, context= 0x80026fa0
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803
c2811 platform with 524288 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled
Upgrade ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0x3edeb34
Error : compressed image checksum is incorrect 0x8543774D
        Expected a checksum of 0xC117781E
*** System received a Software forced crash ***
signal= 0x17, code= 0x5, context= 0x80026fa0
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803
c2811 platform with 524288 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled
Upgrade ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0x3edeb34
Error : compressed image checksum is incorrect 0x256A274E
        Expected a checksum of 0xC117781E
*** System received a Software forced crash ***
signal= 0x17, code= 0x5, context= 0x80026fa0
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803
c2811 platform with 524288 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled
Upgrade ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80
System Bootstrap, Version 12.4(13r)T11, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2009 by cisco Systems, Inc.
Initializing memory for ECC
Cabvg000
Bad RAM at location 0xA0000004: wrote 0xA0000004, read 0x00000004
Cabvg010
monitor: command "dir" not found
rommon 6 > dir flash:
program load complete, entry point: 0x8000f000, size: 0xcb80
Directory of flash:
24563    65924348 -rw-     c2800nm-advipservicesk9-mz.151-4.M6.bin
9400    2900      -rw-     cpconfig-2811.cfg
9401    2324992   -rw-     cpexpress.tar
9969    1038      -rw-     home.shtml
9970    115712    -rw-     home.tar
9999    527849    -rw-     128MB.sdf
10128    1697952   -rw-     securedesktop-ios-3.1.1.45-k9.pkg
10543    415956    -rw-     sslclient-win-1.1.4.176.pkg
10645    57005524 -rw-     c2800nm-advipservicesk9-mz.124-22.YB5.bin
rommon 7 >
I tried changing the boot sequence, uploading a new version via tftpdnld,15.1(4)M8 (verifying that the checksum on the file was the same as on Cisco CCO), formatting the flash. All failed.
As of now, I have no more solutions to turn on to.
Has anyone faced a similar problem able to provide some help?
TIA,
Pedro Miguel Marques

Read this: Field Notice: FN - 63405 - CISCO18XX & CISCO28XX Might Fail to Boot After a Power Cycle - Fix on Failure
I strongly recommend you get the chassis replaced. If you don't have a valid maintenance contract, don't despair, you still got some home. Contact your nearest Cisco AM/SE and show them the document above. Initially, they might feign ignorance but they are to honor all complaints.

CISCO ACS not booting - Starts up with GRUB mode

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