[NBLUG/talk] Need help with booting Linux system
William Tracy
afishionado at gmail.com
Thu Mar 17 17:44:41 PDT 2011
A different possible approach: Supposedly this command
will forcibly reinstall a package from an rpm file, replacing any
accidentally deleted files:
rpm -U --force <package.rpm>
I found a forum post that suggests that the "yum-utils" package includes a
"package-cleanup" command that will do this without making you manually
track down the rpm files.
YMMV; I'm more of a Debian guy. I happen to have a Red Hat system here at
work where I can pull up man pages, but I don't have root access to test
anything out (or install yum-utils).
William Tracy
Work: wtracy at cisco.com
Play: afishionado at gmail.com
Cell phone: (805) 704-0917
Internet phone: (707) 206-6441
On Thu, Mar 17, 2011 at 12:57 PM, Todd Cary <todd at aristesoftware.com> wrote:
> Scott -
>
> Again thank you for the assistance, and my delays in getting back is due to
> being "in the field" frequently.
>
> I can afford to have the server down for a period of time since it is
> mainly for FTP, testing PHP and displaying images for clients.
>
> Do I include the EL in the symbolic link as in
> vmlinuz -> vmlinuz-2.6.9-100.EL
>
> Todd
>
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this file
> # NOTICE: You have a /boot partition. This means that
> # all kernel and initrd paths are relative to /boot/, eg.
> # root (hd0,0)
> # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
> # initrd /initrd-version.img
> #boot=/dev/hdc
> default=0
> timeout=5
> splashimage=(hd0,0)/grub/splash.xpm.gz
> hiddenmenu
> title CentOS (2.6.9-100.EL)
> root (hd0,0)
> kernel /vmlinuz-2.6.9-100.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet
> initrd /initrd-2.6.9-100.EL.img
>
> Todd
>
>
> On 3/17/2011 12:01 AM, Scott Doty wrote:
>
>> On 03/16/2011 04:58 PM, Todd Cary wrote:
>>
>>> Scott -
>>>
>>> Yup...I was not paying attention to the link syntax - I do know better
>>> :-).
>>>
>>> On the advice of others in the Centos forum, I did the following:
>>>
>>> rpm -Uvh --replacepkgs --replacefiles kernel-2.6.9-100.EL.i686.rpm
>>> redhat-logos-1.1.26-1.centos4.4.noarch.rpm grub-0.95-3.8.i386.rpm
>>>
>>> So now I have the following in the /boot/ directory:
>>>
>>> drwxr-xr-x 5 root root 9216 Mar 9 10:31 .
>>> drwxr-xr-x 24 root root 4096 Jan 24 08:34 ..
>>> -rw-r--r-- 1 root root 51676 Feb 17 22:41 config-2.6.9-100.EL
>>> drwxr-xr-x 2 root root 1024 Mar 9 10:31 grub
>>> -rw-r--r-- 1 root root 444812 May 5 2007 grub-0.95-3.8.i386.rpm
>>> -rw-r--r-- 1 root root 1343054 Mar 9 10:29
>>> initrd-2.6.9-100.EL.img
>>> -rw-r--r-- 1 root root 13409764 Feb 18 06:25
>>> kernel-2.6.9-100.EL.i686.rpm
>>> drwx------ 2 root root 12288 Jan 12 2007 lost+found
>>> -rw-r--r-- 1 root root 9371 Aug 12 2006 message
>>> -rw-r--r-- 1 root root 9371 Aug 12 2006 message.ja
>>> -rw-r--r-- 1 root root 7919724 Aug 13 2006
>>> redhat-logos-1.1.26-1.centos4.4.noarch.rpm
>>> -rw-r--r-- 1 root root 67797 Feb 17 22:41
>>> symvers-2.6.9-100.EL.gz
>>> -rw-r--r-- 1 root root 770652 Feb 17 22:41
>>> System.map-2.6.9-100.EL
>>> drwx------ 2 root root 9216 Mar 9 10:03 .Trash-root
>>> -rw-r--r-- 1 root root 1538264 Feb 17 22:41 vmlinuz-2.6.9-100.EL
>>>
>>> I am not sure of what to have the symbolic link for vmlinuz point to;
>>> vmlinuz-2.6.9-100???
>>>
>>>
>> That looks correct. but check grub.conf to make sure the kernel file
>> you're trying to boot is the correct one.
>>
>> Also, remember that it will look a little funny, if you have a separate
>> /boot partition -- the filenames will be in the "root" directory, like this:
>>
>> title Fedora (2.6.35.10-74.fc14.x86_64)
>> root (hd0,0)
>> kernel /vmlinuz-2.6.35.10-74.fc14.x86_64 ro
>> root=UUID=69effc7d-ef6e-4982-9bdc-2f3bea9e056e rhgb quiet
>> SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us selinux=0
>> initrd /initramfs-2.6.35.10-74.fc14.x86_64.img
>>
>> It's the kernel line I'm referring to, it will be "/vmlinuz-..." instead
>> of "/boot/vmlinuz-..." -- but _only_ if /boot is a separate partition.
>>
>> Quick question -- if it _doesn't_ boot, can you afford for this system to
>> be down until it can be fixed?
>>
>> -Scott
>>
>>
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>>
>>
>>
> --
> Ariste Software
> Petaluma, CA 94952
>
> http://www.aristesoftware.com
>
>
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