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Old 09-24-2009, 06:40 PM   #1
miteshpant
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Smile my bash file is deleted , trying to restore from kernel arguments

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hi,
i have deleted my bash file
and thus the system is not letting me to bash shell
now i have a kernel panic situation
i want to log in using ksh shell passing arguments from kernel
lets begin..
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Old 09-24-2009, 06:43 PM   #2
chrism01
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Please tell us which distro & version you have, and give more details.
Which 'bash' file?

1. /bin/bash - the actual shell itself
2. .bashrc
3. .bash_profile
4. other
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Old 09-24-2009, 06:52 PM   #3
miteshpant
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Original Poster
yeah you got it right
its the /bin/bash file
i am using RHEL5
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Old 09-24-2009, 06:55 PM   #4
chrism01
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I'd use the installation DVD in rescue mode ie at the first text prompt type

linux rescue


then it will run from the DVD & mount your HDD as another disk. You can fix your login to use /bin/ksh or whatever so you can at least get in.
You should then be able to use yum to re-install bash.
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Old 09-24-2009, 07:02 PM   #5
custangro
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Quote:
Originally Posted by miteshpant View Post
yeah you got it right
its the /bin/bash file
i am using RHEL5
boot into "linux rescue" mode from the installation disc

Then you can do 1 of 2 things...

Reinstall bash

Copy bash from the rescue mode

-C
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Old 09-25-2009, 04:44 AM   #6
miteshpant
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the point is i don't want to use the dvd , or linux rescue mode... i want to fx it by passing arguments from the kernel to get into the computer using ksh shell
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Old 09-25-2009, 04:52 AM   #7
lutusp
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Quote:
Originally Posted by miteshpant View Post
the point is i don't want to use the dvd , or linux rescue mode... i want to fx it by passing arguments from the kernel to get into the computer using ksh shell
So this is homework. If I were in your shoes I would use the simplest, most reliable way to recover from such a disaster (e.g. copy bash from a rescue disk to the affected installation). But you don't want to do that. Ergo, homework.

Be truthful.
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Old 09-25-2009, 11:47 AM   #8
custangro
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Quote:
Originally Posted by miteshpant View Post
the point is i don't want to use the dvd , or linux rescue mode... i want to fx it by passing arguments from the kernel to get into the computer using ksh shell
Do you mean passing options to the kernel using grub?

-C
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Old 09-25-2009, 12:28 PM   #9
miteshpant
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correct
i think something like
init=/bin/ksh should work
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Old 09-25-2009, 01:19 PM   #10
custangro
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Quote:
Originally Posted by miteshpant View Post
correct
i think something like
init=/bin/ksh should work
It might...try it out and let us know if it worked.

-C
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