Prohibitive sign appears when booting Lion from USB flash and DVD

Hi There
I created both a bootable DVD and a USB drive from the Lion download. However I just tried booting my macbook from the DVD and got the "prohibitive sign - ie the circle with a line through it" it was the same when trying the USB flash drive as well. any idea's gratefully appreciated ! BTW my Macbook is a intel dual core.
I'm currently installing Lion on my Macbook pro from the downloaded image OK so don't think the image is damaged.
rgs
Colin

when you say your MBP is dual core, do you mean core 2duo or core duo?
http://macs.about.com/od/macoperatingsystems/qt/Mac-Os-X-Lion-Preview-Mac-Os-X-L ion-Minimum-Requirements.htm
and
http://www.apple.com/macosx/specs.html

Similar Messages

I bought my 'air' in Australia the keyboard has a dollar sign, is there a way to change the setting so that a pound or a euro sign appears? I am from the UK and currently live in Spain!

I bought my 'air' in Australia the keyboard has a dollar sign, is there a way to change the setting so that a pound or a euro sign appears? I am from the UK and currently live in Spain!

Hi colin the card,
Welcome to Apple Support Communities.
It sounds like you purchased your device in a different country than the one you reside in and want to change the currency symbol typed from the keyboard. The article linked below will provide details about changing your MacBook Airs region and currency format.
OS X Mavericks: Customize formats to display dates, times, and more
http://support.apple.com/kb/PH14227
I hope this helps.
-Jason

How can I boot linux from usb drive and/or dvd drive on a windows 8 laptop please?

Hi all,
Could someone describe how to set my windows 8 laptop to boot linux from usb and or dvd drive step by step please? I have HP laptop. Thank you.

http://www.cisco.com/en/US/prod/collateral/modules/ps6247/prod_qas0900aecd80232483.html
     Q. What sizes of USB Flash sticks are supported?
     A. USB Flash sticks are supported in 64, 128, and 256 MB sizes. No other sizes are supported.
     Q. Can I use any USB memory stick for this application?
     A. No. Only Cisco USB memory sticks are supported.
Q. Can I boot an image directly from the USB Flash module?
A. Yes. USB drivers have been added to rommon, starting with version 12.4(13r)
     Q. Can I format the USB Flash module on the router?
A. Yes. You can format the module on either a router or a PC. You must specify "FAT16 file system" as the file system for the PC format process to use.
If your setup satisfies above conditions you can get the router to boot up with the IOS on the USB flash
If you are in ROMMON mode, use 'dev' to find out the name of the USB Flash (should be usbflash0).
set BOOT=usbflash0:
If you are in the router,
boot system flash usbflash0:

How can i install windows 7 on macbook pro lion from usb?

hello am sorry to disturb you
i would like to know the above question since i have looked almost everywhere and i have received no answer
i have a macbook pro i5 with lion
i have been trying for month to install windows 7 as a secondary boot to my mac
but i haven't been able to
things that i have done
-i had downloaded win7 iso
-using another computer i installed win7 on the usb { win to flash }
-i have used bootcamp assistant but apparently i need a dvd of win7 which i currently don't have
-i have installed Reffit but i always get a flashing screen when try to load windows
please i hope you can reply me back if possible
my thoughts are
is that apple disabled the efi on lion to not be able to boot from usb flash drive
my reasoning to this is that is used to work on leopard but not lion
again am trying to boot from usb not burn a disc
please help att alcidio

Rule #1 that TP missed: ISO have to be burned at SLOWEST 2X burn speed to work.
There is/was a long thread but booting Windows from USB-DVD or flash is hit or miss, it may work. USB-DVDs often do not but it is possible to edit the plist to add the Mac ID string to it.
Boot Camp Assistant -
create a partition (done)
download Windows Support Software (drivers to install after Windows is running) (done)
Start the install and boot process - not really needed or essential
And you can use Paragon, you can use Windows 7 or later DVD and do entire install (but on a dedicated 100% Windows hard drive).
Flash drive: has to be MBR and FAT or NTFS (I think, sounds right) same for putting Apple drivers on flash card for which there is an Apple Tech Article.

MSI P965 Neo-F (MS-7235) problem booting from USB flash drive

Hi, all!
I was wondering if someone can help me. I am trying to install Windows 7 x64 on my 320GB HDD that is connected to my MSI P965 Neo-F (MS-7235) mobo (The CPU is a Core2Duo 6600 with 6GB of RAM). I created a bootable USB 8GB flash drive using Microsoft's "Windows 7 DVD USB Download Tool" and bootsect.exe (Needed to create a boot sector on the USB drive) from the MS store. I successfully tested the resulting bootable USB drive using freeware MobaLiveCD (Sorry, you'll have to Google "mobalivecd" since this forum doesn't seem to allow external links) running under Windows XP SP3 x86 (32bit). Under MobaLive's QEMU, Windows 7 setup loaded its files and produced an error message basically saying that it could not install Windows 7 x64 under an x86 OS (No surprise there since QEMU is emulating a 32bit processor - The point is that the bootable USB drive I created works).
I then went into my mobo's CMOS and under Advanced BIOS Features -> Boot Sequence -> 1st Boot Device, set the value to "USB-HDD" and rebooted my machine. The USB drive probably was not detected by the mobo under that setting because it proceeded to boot from my HDD which is the 2nd Boot Device. I repeated the same process using each one of the four USB ports in the rear of the mobo (I don't have the optional USB panel that the MSI users manual mentions) to no avail. I also tried setting the 1st Boot Device to "USB-FDD" and repeated the process for each USB port but the mobo still will not boot from the USB drive (It does not recognize it). When I set the 1st Boot Device to "USB-ZIP" and rebooted, the mobo hangs after "Verifying DMI Pool Data ..." which is no surprise since I am not using a USB ZIP drive but a USB flash drive. It appears that under that setting, it recognizes that there is a USB device attached but it is expecting a response (From a USB ZIP drive). I had no idea it would be this frustrating to boot from a USB flash drive! If anyone knows how to make this mobo boot from a USB flash drive, please let me know. Any assistance would be greatly appreciated. Thanks!

Quote from: RemusM on 12-June-14, 17:51:30
The P965 Neo motherboard is 8 years old, so don't expect miracles. .... You need to format the USB stick in the proper way. You may use this utility to do it: hxxp://www.prime-expert.com/flashboot/ Also, it's a good idea to use the first (USB0) connector (controlled by Intel ICH8) for the USB flash drive. Good luck.
Thank You for your fast response, RemusM!
I'm not looking for a miracle. I'm just looking for a mobo that does what it is supposed to do: Allow me to boot from a USB flash drive (I don't think that is too much to ask for even from a board that was made in 2006)!
Thanks for recommending FlashBoot. I see under their "Why FlashBoot" section that it "... does not shift to user the burden of choice between "USB-ZIP" and "USB-HDD" at format time and proper BIOS setup at boot time. ... and every USB disk is formatted in such way that it will work in every environment properly, regardless of current BIOS setting.", so I will give it a try and let you know about the results afterwards.

How to boot from USB flash drive - Portege R500

Hi,
I have a Portege R500 running Windows XP, brought about 2 years ago, and recently contracted a worm virus that has infected some of the start up files as the minute I log in it logs out again, even in safe mode! Quickest way I can think of sorting it is to reformat it with the XP recovery disc and reinstall windows.
Problem!! The CD/DVD drive on the laptop stopped working a while ago, have tried pretty much everything in the thread on this site but had no luck.
So my plan was to boot from a USB flash drive and do it that way. However in the boot settings I only have the options of HDD / FDD / CD-ROM / LAN, neither of these will work. Does anyone know how to boot from USB flash drives?
Any help would be really appreciated

Hi
As far as I know it should be possible to boot from USB FDD
Im not sure if you would be able to boot from USB flash drive but its definitely worth a try
Generally you could try to press F12 button when notebook powers up.
Then a boot menu should appear on the display and you should see all bootable devices.
PS: As far as I know the USB booting was available in ToshibaHWSetup (Toshiba tool which changes the BIOS settings in windows OS.) Therefore I assume booting from USB should be possible.
Greets

Need to boot Linux from USB

I have been trying to get this to work for a while now but it appears with the current firmware it is just not possible to boot a Linux OS from a usb drive.
Is this true? or is there a way it can be done?
Basically I work in a forensic computing lab and as our portable forensic machines we have a total of 16 MacBook Pro's all the same spec set up to dual boot WinXP and Leopard.
So far they've been excellent giving us the benefits of both OS's to run the different forensic tools on.
My problem is i need to boot a linux distro from a portable drive (USB or Firewire is fine but USB would be better) for a particular purpose.
As you can imagine, our system gets filled with loads of rubbish and we need to clean them regularly so i have created an install from a wiped drive containing everything we need on the drive. I have then created some scripts in Linux that use dcfldd to create an image of the entire drive and compress it to about 13GB.
I also created another script that puts the image back on the internal drive.
This basically allows me to put clean "forensically" secure images back on the laptops within about an hour. i can also then update any software etc before creating a new up to date image.
Currently I have to use a Linux boot CD to start the laptop with an external drive attached holding the scripts and image. i would like to just have a bootable thumb drive that holds everything and be able to start from it by holding the option key, put the image on the internal drive and reboot. its very quick except from the booting and running from CD whereas a small puppy linux build or similar would be very quick. And because we sometimes have to do this onsite speed is a major issue.
Am i correct in thinking that the firmware just doesn't allow it or has anyone managed to get this to work?
If it is the firmware, does anyone know if there is an update on the horizon that will remedy this problem?
I should state i have tried many linux builds (using MBR and GPT options etc) and refit and nothing allows the drive to boot with refit stating the firmware has limited support for legacy systems on USB.
I also know that I CAN (and have tried) using a Mac OS installed on the USB drive but it appears to have its own problems. it is fine when the internal drive is empty but because in my case it has an OS on it the system actually seems to use some of the components of the internal drive so when trying to image over it i get conflicts. The Mac OS also takes a lot of room on the drive when i just want a stream lined OS for this job.
The main reason i don't want to use Mac OS though is that i plan to later add images for our doing our lab machines which are PCs and would therefore not boot the Mac OS.
If anyone can help with this I would be grateful.
Cheers
Chris

Most Linux distros will not boot from USB devices as is. I believe you're in luck with Ubuntu because there are some methods of running it from USB flash drives that just may do the trick for you. I ran across this when looking into putting Ubuntu on my MSI Wind.
Boot and run Linux from a USB flash memory stick | USB Pen Drive Linux.webloc;
On the Ubuntu site look for information in the documentation for installing on pendrives.
I'm pretty sure that the methods for booting from USB flash drives will apply to any USB drive. From what I learned Linux simply isn't set up to boot from a flash drive or USB drive without some effort on the part of the installer. I've never done this myself so I can't tell you what to do only some pointers to where you may find how to do it.
After my experience using Ubuntu on my Wind I decided it wasn't worth the effort involved. OS X is simply much better than Linux in every respect. I just wasn't interested in becoming any geekier than I already am. I had enough of that 20 years ago!

Cisco 3825 router boot ios from usb

HI All
I got a Cisco 3825 Router CF card failure, can I boot IOS from USB?
Physically I found 2 usb ports but nothing I can see in ROMMON mode, may I know how to boot from USB?
rommon 1 > dev
Devices in device table:
id name
flash: compact flash
bootflash: boot flash
eprom: eprom
rommon 2 >
Hugo

Hi Hugo,
The only time you can get an ISR G1 (except 870) to boot from USB is when you have upgraded the bootstrap to 12.4(13r)T15.
The command to boot from USB is a hidden command. From ROMmon the command is "boot usbflash0:IOS_filename.bin".

Slow Wifi speed when transfering data from USB drive?

Hello guys,
Am I the only one to get slow WiFi speed when transfering data from USB disks or keys?
This is the new Mac Mini July 2011 (Macmini5,2)
Intel Core i7, 2.7 Ghz
8 Go 1333 MHz DDR3
Mac OS X Lion 10.7 (11A2061)
Thanks
Nicolas.

Hello again,
I'm also having this issue when using a Bluetooth Magic Mouse when downloading file. Is it a problem with the firmware or the BUS?
Anyone have the same issue?
Thanks
Nicolas.

HT1600 I have an Apple TV 2nd Gen, iPad 2 and can't get the icon to appear when i swipe from left to right. What am I missing? I am able to get the 'Home sharing' 'user and password on my Mac.

I have an Apple TV 2nd Gen, iPad 2 and can't get the icon to appear when i swipe from left to right. What am I missing?
I am able to get the 'Home sharing' 'user and password on my Mac.
Also using IPad 2 I am able to get the ITunes to accept the user name and same password as the Mac.
However, the only way I can see the 'Home sharing; icon is in Music on the Ipad. When I tap on the Icon it asks for a password.
When I give the same password, it is rejected.
Help!!!!
Jaxxdiggs

Personally I think the iOS devices are poor at reconnecting - Airplay establishes that a link is available but when the iPhone/iPad has been away from the house and rejoins the network i think AppleTV already thinks it's connected with a different IP address and fails to recognise it has joined the network again with new credentials.
Something along those lines anyway.
I find that a combination of restarting AppleTV, router and iOS device tends to fix it, but not for everyone.
AC

When booting up, the bluetooth connects and then disconnects with my trackpad 3 or 4 times then i get a gray cover over the desktop that drops from top to bottom then a window that tells me to use the power button to do a forced shutdown.

when booting up, the bluetooth connects and disconnects with my trackpad 3 to 4 times and then i get a gray sheet that drops down from the top to bottom of the desktop then a box in the center that tells me to use the power button to do a forced shutdown. wireless keyboard connects with no problem. went to the apple store and they replaced the bluetooth card. still have the same problem. removed the batteries from the trackpad, strted up and no problem connecting with wireless mouse and keyboard. anyone else experience this?

This could be a software/state problem or a hardware problem. Here are steps to resolve the former.
http://support.apple.com/kb/TS2570
https://discussions.apple.com/docs/DOC-5282

Re: Can i boot Satellite L10-102 from USB flash disk?

hello everybody, i wonder whether it's possible or not to boot my good-old laptop via usb flash disk? do you think my laptop's bios support this feature?
lol... sorry i forgot feedback part... well people are looking at what i asked, but no one writes back.
I think it would be better at least admins direct members to the sources where they can find some info.
Message was edited by: inbigtrouble

Hi
I doubt you could boot from USB flash disk
As I remember the older notebook series support the booting from HDD, ODD, LAN and USB FDD drive (diskette). The booting from USB flash disk is not supported.
Greets

Does KT880 boot from USB Flash Disk?

Does KT880 boot from USB Flash Disk?
Your real experience?

I would like to buy this board.
So that is why I am searching for proved experience.

NB100 - How can I reinstall OS from USB flash drive

My TOSHIBA NB 100 notebook does not have CD-DVD drive.
OS is Windows XP Home SP2.
OS is not booting.
Notebook won't start at all so I cannot run any sort of test when i turn it on.
The we apologize screen come on it says run safe mode, safe mode networking, safe mode comand prompt or start windows normally. But no matter which I chose it won't start it only goes to Windows and seems like its starting but then shows the blue Windows screen & stays there.
So I want to reload Windows from my USB flash drive.
The BIOS boot sequence is HDD - FDD - FD - CD - USB Memory.
What are the steps for loading Windows from USB flash drive?
If this does not work then I want to connect another laptop with Windows CD in its CD-DVD drive to the Notebook.
Will this work? Will the Notebook use the Windows CD in the laptop drive to load the OS?
How to do this connection?

Hi
Usually you would need an external USB CD/DVD drive in order to boot from the Windows XP disk or Toshiba recovery disk.
But there is a method which allows you to install the Win XP using 2GB USB flash drive.
This is possible because the BIOS of NB100 support the booting from USB memory stick.
Pease check this internet page:
+Installing Windows XP Using A USB Flash Drive+
http://www.pctipsbox.com/installing-windows-xp-using-a-usb-flash-drive/
Hope it could be helpful.

Error message an error occurred while signing in " when I worked with Create PDF and at the signed

Error message "an error occurred while signing in " when I worked with Create PDF and at the signed in status. Please help so that I can continu my work.

Hi Stacy,
Thank you for your attention.
I have been working with Create PFD under normal procedures including
sign-in and several documents had been finished. However, when continued
creating another document the computer took a long time to pprocess and
finally a mesage appeared: "An error occurred while signing in" and stopped
there. I clicked the OK button and start creating again and the same
message appeared once more. I tried to log off and log in again in no
avail. So I went to the help site and called for help.
Later, I decided to reboot the computer and tried once more. This time it
worked and I continued creating. Thanks.
laozhao39

Prohibitive sign appears when booting Lion from USB flash and DVD

Similar Messages

Maybe you are looking for