[SOLVED]Install kernel failed and how can I repair my system.

In order to get suspend function, I try to compile a new kernel, I used the second method in http://wiki.archlinux.org/index.php/Ker … rom_Source with makepkg and pacman. I download 2.6.31 kernel and makepkg is OK, but pacman tell me /lib/***(lots of
files name) can not be overwritten. I'm not very happy, what make matter worse, I reboot my
system, it seems it lost some modules, it do not mount ext4 partition and can not find Ethernet.
I have lots of data in this system, I could not erase the hard disk and  re-install the whole system. Is there a good way to repair my system?
my system have 5 partitions: /,/boot,/usr, /home, /var, I hope these partition can be all reserved as possible.
Thank you in advance.
Last edited by netawater (2013-06-14 00:48:56)

First off - you should _never_ use the default name when rolling your own kernel, _always_ give it a unique name! (this way, you can always go back to your previous, working kernel/modules) - by the way - have you tried booting the fallback kernel?
One safe way of keeping your own data - boot from a live cd/usb stick without involving the current OS at all. Then use an external usb-drive (hey - these days you can buy a 1TB usb drive for less than 100 bucks - it's a no-brainer!) and copy all the data you are concerned about to the usb-drive.
Once that is done you can start experimenting - or just plain and simple reinstall or try to reinstall the original kernel. If some of your partitions wont mount (private data), then remake to ext3 _after_ having backed it all up.
I have not looked at the wiki, but I'm sure there is some warning about kernel naming - at least I _know_ that subject has been discussed in this forum.

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