Strange noise on start-up followed by no entry sign

My Macbook Pro (pre black keyboard) started making a strange noise on start up - a very loud grating noise.
Now I get a 'no entry' sign on start up. I cannot progress any further than this sign.
Any ideas on a fix, please?
Thank you.

Karl:
Sounds like you are due for a HDD replacement. Try booting from the install disk, launch Disk Utility in the Utilities menu and see if the HDD appears in the sidebar. You can also boot from the Apple Hardware Test and run the extended test. However, from your description it sounds very much like the HDD. Hopefully you have an up to date backup.
Please post back with an update or further questions/comments. Also include detail or your computer (processor speed, RAM, etc.) in your profile and/or response.
cornelius
Message was edited by: cornelius

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Macbook Pro Does Not Start Up - Stuck at "No Entry" Sign

Hello,
I've been dealing with this hours, so at last I decided to get help from the community.
Let me explain the issue first.
I have checked Software Update, and there was two updates. First one was Java and the other one was EFI Update 2.7. I don't remember the Java update version. After I applied the update, the MBP rebooted itself as it should do; bu the problem occured at that reboot. OSX tried to start up three times, like as it was failing to install the updates after reboot. And at the fourth time, after a few minutes the Apple logo turned into a "No Entry Sign". And it stuck like that. Now, the MBP cannot boot normally, I can only run it on safe mode.
I have reset PRAM.
As far as I read about the issue over the boards, the problem occurs to be an HDD problem. Yet I can run the OSX in safe mode, which bugs me. So I downloaded SMART Utility to check the HDD. It says there is 1 Pending Bad Sector, and 1 Removed Bad Sector.
What do I do now, any solutions you can offer?
This is the log export from SMART Utility if you wish to check it.
location: /dev/disk0
partition count: 1
partitions: Caprica HQ,
SMART Support: Supported
Last SMART Error: *not set*
Model Family: Seagate Momentus 5400.6
Model: ST9500325ASG
Serial Number: 5VELJHP6
Firmware Version: 0009APM1
Capacity: 500 GB
ATA Version: 8
ATA Standard: ATA-8-ACS revision 4
Health: Failing
Overall Health: PASSED
Offline Data Status: 0
Self Test Status: 0
Offline Data Collection Time: 0
Data Collection Capabilities: 73
SMART Capabilities: 3
Error Logging Capabilities: 1
Short Self Test Time: 1
Long Self Test Time: 139
Conveyance Self Test Time: 2
Attribute Log Revision: 10
Attribute Count: 22
Attributes:
ID#   ATTRIBUTE NAME                         FLAG       VALUE   WORST   THRESH TYPE         UPDATED     FAILED    RAW VALUE
1     Raw Read Error Rate                    0x000E     117     099     006     Old age      Always      Never     141585185
3     Spin Up Time                           0x0003     100     100     000     Pre-fail     Always      Never     0
4     Start/Stop Count                       0x0032     100     100     020     Old age      Always      Never     18
5     Reallocated Sector Count               0x0033     100     100     036     Pre-fail     Always      Never     0
7     Seek Error Rate                        0x000F     100     253     030     Pre-fail     Always      Never     595148
9     Power On Hours                         0x0032     100     100     000     Old age      Always      Never     622
10    Spin Retry Count                       0x0013     100     100     097     Pre-fail     Always      Never     0
12    Power Cycle Count                      0x0032     100     100     020     Old age      Always      Never     366
184   End-to-End Errors                      0x0032     100     100     099     Old age      Always      Never     0
187   Reported Uncorrectable Errors          0x0032     090     090     000     Old age      Always      Never     10
188   Command Timeout                        0x0032     100     100     000     Old age      Always      Never     0
189   High Fly Writes                        0x003A     100     100     000     Old age      Always      Never     0
190   Airflow Temperature Celsius            0x0022     071     061     045     Old age      Always      Never     29
191   G-Sense Error Rate                     0x0032     100     100     000     Old age      Always      Never     99
192   Power Off Retract Count                0x0032     100     100     000     Old age      Always      Never     85
193   Load Cycle Count                       0x0032     083     083     000     Old age      Always      Never     34546
194   Temperature Celsius                    0x0022     029     040     000     Old age      Always      Never     29
195   Hardware ECC Recovered                 0x001A     051     043     000     Old age      Always      Never     141585185
197   Current Pending Sector Count           0x0012     100     100     000     Old age      Always      Never     1
198   Offline Uncorrectable Sector Count     0x0010     100     100     000     Old age      Offline     Never     1
199   UDMA CRC Error Count                   0x003E     200     200     000     Old age      Always      Never     0
254   Free Fall Sensor                       0x0032     001     001     000     Old age      Always      Never     63
Error Log Version: 1
Error Count: 9
Error Log:
Error 9 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:42:05.257 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:03.023 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:00.832 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
Error 8 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:42:03.023 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:00.832 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
Error 7 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
60 00 38 68 BE 3A 40 00      01:41:56.375 READ FPDMA QUEUED
60 00 10 08 0E 27 40 00      01:41:56.371 READ FPDMA QUEUED
Error 6 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
60 00 38 68 BE 3A 40 00      01:41:56.375 READ FPDMA QUEUED
60 00 10 08 0E 27 40 00      01:41:56.371 READ FPDMA QUEUED
60 00 08 FF FF FF 4F 00      01:41:56.319 READ FPDMA QUEUED
60 00 10 E8 F1 06 40 00      01:41:56.318 READ FPDMA QUEUED
Error 5 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:41:53.979 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:51.778 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.575 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.550 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.477 READ DMA EXT
Self Test Log Revision: 1
Self Test Log Count: 0
Self Test Log:
No self tests logged.

As I'm sure you are already aware, that HDD has failed to the point it cannot find a bootable volume.
If you have a backup, no worries.
If you do not have a backup, you could try to reinstall the operating system and get the disk to a state in which it will at least mount. Then, copy whatever information remains intact to another disk. I would be inclined to replace the drive now, install the failed one in an external enclosure, and attempt to extract whatever information you need from it.

HELP: MacBook Pro won't start. MachKernel/slow/no entry sign/erratic

(having major issues figuring out which forum to post this question... In error, I posted this last night to the Mac Pro forum, then this morning to the OSX Leopard Forum. I think it goes here.)
MacBook has been running slow the past couple of days. Yesterday, it wouldn't start-up, and after resetting the PRAM, I got the no-entry sign (barred circle).
Restarting with V: I got a mach kernel error. Found a help sheet on that, but when trying to restart with X, got only as far as the blue screen.
This morning, miraculously, it started up, very slow. I then tried to backup my files, with no success. Tried to burn to a dvd, but that was unsuccessful. (Later at the Apple Store where I was able to backup a few essential files realized that the Burn DVD folder was empty.
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For a while, it would startup, but aside from the hard drive icon, the file (pdf, doc, and jpg) icons on my desktop wouldn't change from generic to specific and the rainbow wheel just kept spinning and spinning. I finally forced quit.
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I've goggled just about everything and I can't seem to fix this problem.
You shouldn't!
You are still under warranty. Call Apple Care. Make sure you get a case number as all repairs have an additional 90 days of warranty.
#1 - You have 14 days from the date of purchase to return your computer with no questions asked.
#2 - You have 90 days of FREE phone tech support.
#3 - You have the standard one year Apple warranty.
#4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years. You can obtain AppleCare anytime up to the first year of the purchase of your computer.
Take FULL advantage of your warranty. Posting on a message board should be done as a last resort and if you are out of warranty or Apple Care has expired.

21in. imac running Mountain Lion will not start just get grey no entry sign

21in. imac running Mountain Lion will not start just get grey no entry sign

David,
Please carefuly read what Apple says in how to troubleshoot this issue. Also PLEASE complete your profile,we don't even know what iMac you have or the version of OS X it is running.
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Hi!
I've found a youtube movie of a Macbook Superdrive loading a disk: http://www.youtube.com/watch?v=OjdXPOy8Ocw&feature=related
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Strange noise on start-up followed by no entry sign

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