On 09/07/2013 10:35 PM, Canek Peláez Valdés wrote:
> On Sat, Sep 7, 2013 at 2:30 PM, Alexander Kapshuk
> <alexander.kaps...@gmail.com> wrote:
>> On 09/07/2013 10:25 PM, Canek Peláez Valdés wrote:
>>> On Sat, Sep 7, 2013 at 1:53 PM, Alexander Kapshuk
>>> <alexander.kaps...@gmail.com> wrote:
>>>> On 09/07/2013 09:35 PM, Canek Peláez Valdés wrote:
>>>>> On Sat, Sep 7, 2013 at 1:24 PM, Alexander Kapshuk
>>>>> <alexander.kaps...@gmail.com> wrote:
>>>>>> On 09/07/2013 09:11 PM, Canek Peláez Valdés wrote:
>>>>>>> On Sat, Sep 7, 2013 at 1:06 PM, Alexander Kapshuk
>>>>>>> <alexander.kaps...@gmail.com> wrote:
>>>>>>>> Howdy,
>>>>>>>>
>>>>>>>> Just compiled the new kernel [3.10.7], was about to edit my
>>>>>>>> /boot/grub/grub.conf, and found it missing:
>>>>>>>> box0 boot # pwd
>>>>>>>> /boot
>>>>>>>> box0 boot # ls -a
>>>>>>>> .  ..  kernel-3.10.7-gentoo  kernel-3.8.13-gentoo
>>>>>>>>
>>>>>>>> What did I miss?
>>>>>>> Do you have /boot in a separated partition? Did you mounted it?
>>>>>>>
>>>>>>> Nothing should touch /boot, AFAIK.
>>>>>>>
>>>>>>> Regards.
>>>>>> I do have '/boot' on a separate partition. If I understand it correctly,
>>>>>> '/boot' gets mounted every time at system start-up, based on
>>>>>> '/etc/fstab', does it not?
>>>>> By the contents of your fstab, it should...
>>>>>
>>>>>> box0 boot # cat /etc/fstab
>>>>>> <snip>
>>>>>> /dev/sda1        /boot        ext2        default,noatime    0 2
>>>>>> /dev/sda2        none        swap        sw        0 0
>>>>>> /dev/sda3        /        ext4        noatime        0 1
>>>>>> /dev/sda5        /home        ext4        noatime            0 2
>>>>>> /dev/cdrom        /mnt/cdrom    auto        noauto,ro    0 0
>>>>>>
>>>>>>
>>>>>> box0 boot # mount|grep /dev/sda
>>>>>> /dev/sda3 on / type ext4 (rw,noatime,data=ordered)
>>>>>> /dev/sda5 on /home type ext4 (rw,noatime)
>>>>> ,,,however mount says up there that it's not mounted.
>>>>>
>>>>>> box0 boot # fdisk -l /dev/sda
>>>>>>
>>>>>> Disk /dev/sda: 250.1 GB, 250059350016 bytes, 488397168 sectors
>>>>>> Units = sectors of 1 * 512 = 512 bytes
>>>>>> Sector size (logical/physical): 512 bytes / 512 bytes
>>>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>>>>>> Disk identifier: 0x00000000
>>>>>>
>>>>>>    Device Boot      Start         End      Blocks   Id  System
>>>>>> /dev/sda1   *        2048       67583       32768   83  Linux
>>>>>> /dev/sda2           67584     1116159      524288   82  Linux swap / 
>>>>>> Solaris
>>>>>> /dev/sda3         1116160    43059199    20971520   83  Linux
>>>>>> /dev/sda4        43059200   488397167   222668984    5  Extended
>>>>>> /dev/sda5        43061248   488397167   222667960   83  Linux
>>>>> For some reason your /boot partition didn't get mounted. See the boot
>>>>> logs, and try to mounting by hand. Perhaps the fsck failed or it needs
>>>>> manual intervention.
>>>>>
>>>>> Regards.
>>>> Based on the 'dmesg' output below, EXT2-fs attempted to mount the '/'
>>>> partition instead of the '/boot' one.
>>>>
>>>> box0 ~ # dmesg|grep 'EXT.*fs'
>>>> [    2.444214] EXT2-fs (sda3): error: couldn't mount because of
>>>> unsupported optional features (240)
>>>> [    2.444736] EXT4-fs (sda3): couldn't mount as ext3 due to feature
>>>> incompatibilities
>>>> [    2.481412] EXT4-fs (sda3): mounted filesystem with ordered data
>>>> mode. Opts: (null)
>>>> [    9.448819] EXT4-fs (sda3): re-mounted. Opts: (null)
>>>> [    9.731383] EXT4-fs (sda5): mounted filesystem with ordered data
>>>> mode. Opts: (null)
>>>>
>>>> Would that suggest a corrupted /boot/grub/grub.conf file?
>>> Not necessarily. Can you manually mount /boot and see the contents of
>>> /boot/grub/grub.conf.
>>>
>>>> How did the system boot then?
>>> If grub can see the boot partition (and is correctly configured and
>>> installed on the MBR), it can mount the root system without problems
>>> regardless of fstab. Do you use an initramfs?
>>>
>>> Regards.
>> 'mount /boot' fails:
>> box0 ~ # mount /boot
>> mount: wrong fs type, bad option, bad superblock on /dev/sda1,
>>        missing codepage or helper program, or other error
>>        In some cases useful info is found in syslog - try
>>        dmesg | tail or so
>>
>> No, I do not use 'initfamfs'.
>>
>> What do you suggest doing?
> Mounting it by hand:
>
> mount -t ext2 /dev/sda1 /boot
>
> Regards.
That did the trick. Thanks very much.

Here's my /boot/grub/grub.conf:
box0 linux # cat /boot/grub/grub.conf
# This is a sample grub.conf for use with Genkernel, per the Gentoo handbook
#
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
# If you are not using Genkernel and you need help creating this file, you
# should consult the handbook. Alternatively, consult the
grub.conf.sample that
# is included with the Grub documentation.

default 0
timeout 30
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title Gentoo Linux 3.8.13
root (hd0,0)
kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3
#initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5

title Gentoo Linux 3.8.13 (rescue)
root (hd0,0)
kernel /boot/kernel-3.8.13-gentoo root=/dev/sda3 init=/bin/bb
# vim:ft=conf:

Is there anything that suggests as to why the /boot partition failed to
mount at system start-up?

Thanks.


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