No way to boot on 2.6.23.12-52.fc7

Dr P Dupre pd520 at york.ac.uk
Mon Jan 7 01:16:27 UTC 2008


On Sat, 5 Jan 2008, Tim wrote:

> pd520 at york.ac.uk:
>>>> This is my grub.conf:
>>>> boot=/dev/sda
>>>> default=0
>>>> timeout=10
>>>> splashimage=(hd0,7)/boot/grub/splash.xpm.gz
>>>> hiddenmenu
>>>> title Fedora (2.6.23.12-52.fc7)
>>>>          root (hd0,7)
>>>> #        kernel /boot/vmlinuz-2.6.23.12-52.fc7 ro root=LABEL=/ rhgb quiet selinux=0
>>>>          kernel /boot/vmlinuz-2.6.23.12-52.fc7 ro root=/dev/sda8 rhgb quiet selinux=0
>>>>          initrd /boot/initrd-2.6.23.12-52.fc7.img
>>>>
>>>>
>>>> title Fedora (2.6.21-1.3194.fc7)
>>>>          root (hd0,7)
>>>>          kernel /boot/vmlinuz-2.6.21-1.3194.fc7 ro root=/dev/sda8 rhgb quiet selinux=0
>>>>          initrd /boot/initrd-2.6.21-1.3194.fc7.img
>>>>
>>>>
>>>> I have not problem to boot on: 2.6.21-1.3194.fc7
>
> Tim:
>>> Using the above grub.conf stanza for that kernel?  Your sample grub.conf
>>> is an exact copy of the file?  There's no typing errors in the copy you
>>> e-mailed?
>
> Dr P Dupre:
>> Like what ? I do not see any typo.
>> I already work around. I cannot see what is wrong. The kernel
>> 2.6.21-1.3194 is absolutely fine, but not the new ones. Same syntax.
>
> Just wanted to be sure that we're seeing *exactly* what you're actually
> using.  Sometimes people make mistakes when they post a copy of their
> files.
>
>
>>> By the way:  CHANGE YOUR PASSWORD, NOW!  You've just shown the world the
>>> hashsum for it, and that may be enough to crack it.
>
>> Is it the password of grub ?
>
> Whatever password you set to lock grub options out.  If it's the same
> actual password as something else, as well, change that, too.
>
>
>>>> With the new kernel, if I put:
>>>> kernel /boot/vmlinuz-2.6.23.12-52.fc7 ro root=LABEL=/ rhgb quiet selinux=0
>>>>
>>>> if fails because it try to boot on a /dev/sdb,
>
>>> *Why* does using LABEL=/ cause it to use /dev/sdb?  Do you have two
>>> drives, is "/" the right label?
>
>> The first time that I installed a FC7 I had a problem with the
>> root=LABEL=/ because I guess that I had 2 partitions on 2 different
>> drive with the same lable like /. So since that time, I avoid to use the
>> LABEL.
>
> You can't refer to partitions by labels if they're not unique.  Change
> one of them, at least.
>
> 1.  Use e2label to change the label actually used on the partition
> 2.  Alter any, and *all*, configuration files to suit.
>
> You might call one label "internal" and the other "external", just as
> long as you can tell which is which, easily.  The label doesn't have to
> be "/", it's just a name, not the mount point.
>
> Of course, using device names *should* work, but if something else also
> refers to a partition by a label, such as an fstab file, you're in for
> trouble.
>
>> Yes /dev/sda8 has a label /, as well as /dev/sdb5 which I only mount in
>> read-only.
>
> There's your problem (or one problem, at least).

I do not know if you are right but, how do you explain that I can boot
fine with an older kernel ?

Regards
-- 
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Patrick Dupré                                             pd520 at york.ac.uk
University of York                                 Department of Chemistry
Heslington, York              YO10 5DD                      United Kingdom
Phone: +44-(0)-1904-434384                        Fax: +44-(0)-1904-432516
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