The system works just fine now. I think there was a disk check or something at boot time which takes 15-20 minutes (I rarely reboot the system once or twice a year), and it made me think that the system does not boot. Thanks for your help. Bunyamin. 2011/9/8 Bünyamin İzzet <bunyamin.izzet at gmail.com> > > > On Thu, Sep 8, 2011 at 8:11 AM, Devin Reade <gdr at gno.org> wrote: > >> Bünyamin Ýzzet <bunyamin.izzet at gmail.com> wrote: >> >> > On Wed, Sep 7, 2011 at 11:38 PM, Devin Reade <gdr at gno.org> wrote: >> > >> [snip] >> >> # grub >> >> grub> device (hd0) /dev/sdb >> >> grub> root (hd0,0) >> >> grub> setup (hd0) >> >> grub> quit >> > >> > It still does not boot. I could not see the error message, because it is >> a >> > dedicated server and I am not sitting at the monitor of the server. So I >> > type the lines in grub.conf manually to see the error (I'm not sure if >> it is >> > the right thing to see the error). >> >> If you mean that you typed the lines I gave above into grub.conf, then >> that was not what was intended (and I doubt that it would work). My >> intent was that you get the system booted and running normally (perhaps >> via the rescue disk), and after that execute 'grub' interactively >> and issue those commands. >> >> Devin >> > > As you said, I booted the system via rescue disk, and execute grub and > issue those commands. Then, I reboot the system, but it does not boot. > > Then I searched on google about logging grub errors, which I could not find > anything useful (meybe I did not look enough). So that, in rescue system, I > execute grub and type commands in grub.conf (results are below) to see which > error occurs. > > > > # grub > Probing devices to guess BIOS drives. This may take a long time. > > > GNU GRUB version 0.97 (640K lower / 3072K upper memory) > > [ Minimal BASH-like line editing is supported. For the first word, TAB > lists possible command completions. Anywhere else TAB lists the possible > completions of a device/filename.] > grub> root (hd1,0) > root (hd1,0) > Filesystem type is ext2fs, partition type 0xfd > grub> kernel /vmlinuz-2.6.18-238.19.1.el5 ro root=/dev/md1 vga=0x317 > > kernel /vmlinuz-2.6.18-238.19.1.el5 ro root=/dev/md1 vga=0x317 > [Linux-bzImage, setup=0x1e00, size=0x1fe01c] > grub> initrd /initrd-2.6.18-238.19.1.el5.img > > initrd /initrd-2.6.18-238.19.1.el5.img > > Error 28: Selected item cannot fit into memory > grub> quit > quit > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110908/9abc93c5/attachment-0005.html>