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Operating Systems Linux Red Hat Kernel can not boot after upgrade on Fedora OS 15. Post 302577075 by getrue on Monday 28th of November 2011 06:55:31 AM
Old 11-28-2011
You must boot your machine with rescue mode.
1- boot with fedora cd.
2- write "linux rescue"
3- run "chroot /mnt /sysimage "
After than you can control your kernel command with
Code:
#cat /boot/grub/grub.conf

I wish you didn't use update command If you used only install command you can see old and new kernel version. I think you have only one kernel version.
at grub.conf file "default" parameter is your currently running kernel version.

You try to run ssh or telnet command. If your ssh or telnet is running and if you know your old kernel version. You download your kernel rpm file and copy it to your machine by another linux machine with scp command. Install your kernel using with
Code:
#rpm -ivh kernelxxxxx.rpm

After installation you can see installed kernel into the /boot/grub/grub.conf
You can set as default new kernel using default parameter 0 or 1.
If you delete # character near of the hiddenmenu. You can see all kernel and you can choose desired kernel.
 

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GRUB-INSTALL(8) 							FSF							   GRUB-INSTALL(8)

NAME
grub-install - install GRUB on your drive SYNOPSIS
grub-install [OPTION] install_device DESCRIPTION
Install GRUB on your drive. -h, --help print this message and exit -v, --version print the version information and exit --root-directory=DIR install GRUB images under the directory DIR instead of the root directory --grub-shell=FILE use FILE as the grub shell --no-floppy do not probe any floppy drive --force-lba force GRUB to use LBA mode even for a buggy BIOS --recheck probe a device map even if it already exists INSTALL_DEVICE can be a GRUB device name or a system device filename. grub-install copies GRUB images into the DIR/boot directory specfied by --root-directory, and uses the grub shell to install grub into the boot sector. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
grub(8), update-grub(8). The full documentation for grub-install is maintained as a Texinfo manual in the grub-legacy-doc package. If the info and grub-install programs are properly installed at your site, the command info grub-install should give you access to the complete manual. grub-install (GNU GRUB 0.97) January 2013 GRUB-INSTALL(8)
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