Kernel panic on Snow Leopard

I can't boot up my MacBook Pro running Snow Leopard. A "broken folder" icon appears on my screen whenever I start up. However when I use the Single User mode by pressing Cmd-S after pressing the power button, a flood of text appears on a gray screen and ends up with "cannot mount root errno=19." This keeps repeating on screen.

I will not want to reformat my drive, as there is so much important data on it. All I want for now is to at least recover all that data. Although of course it would be best for me to be able to get my MBP booted up like normal again.
Anton TajanlangitAsked:
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strungConnect With a Mentor Commented:
If not, your best bet is DataRescue III:  http://www.prosofteng.com/products/data_rescue.php
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strungCommented:
Will it safe boot by holding down the shift key?
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crasheliteCommented:
first try starting off the install disk by putting it in and holding C and then repairing permissions and the disk. if that does not work depending on what mac book pro you have you could start it in target disk mode and then transfer the data off the main disk.
Also you could install Mac OS X on a external drive and boot off the external drive to save data if the internal disk mounts.
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Anton TajanlangitAuthor Commented:
How do i go into target disk mode?
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crasheliteCommented:
start it up while holding down the T key.
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crasheliteCommented:
http://docs.info.apple.com/article.html?path=Mac/10.6/en/8443.html


if you have a firewire cable you can connect 2 computers together and then it will show up as an external hard drive would.
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Anton TajanlangitAuthor Commented:
I just had to save my data with my only MacBook. I don't have two machines to connect together in target mode.
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