Re: Amazing problem of /boot

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finally i have decided to replace the editied /etc/fstab with the original one and then mounting /boot and then again carefully editing /etc/fstab for some speed improvement.

thanks.

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>>---------- Forwarded message ----------
>>From: "W.H. Kalpa Pathum" <callkalpa@xxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 20:42:26 +0530
>>Subject: Re: Amazing problem of /boot

>>Thanks for the explanation.

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Yes, thanks a lot.

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>>---------- Forwarded message ----------
>>From: Tim <ignored_mailbox@xxxxxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sun, 13 Jun 2010 00:37:56 +0930
>>Subject: Re: Amazing problem of /boot

>>fstab holds the mount points for things that will be mounted, they may
>>be, they may not be, but it tables where they will be, and how (unless
>>the mounting function specifies different options).

>>mtab shows the current mount points.

>>--
>>[tim@localhost ~]$ uname -r
>>2.6.27.25-78.2.56.fc9.i686

>>Don't send private replies to my address, the mailbox is ignored.  I
>>read messages from the public lists.

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thanks tim.

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>>---------- Forwarded message ----------
>>From: Gene Heskett <gene.heskett@xxxxxxxxx>
>>To: users@xxxxxxxxxxxxxxxxxxxxxxx
>>Date: Sat, 12 Jun 2010 09:49:05 -0400
>>Subject: Re: Amazing problem of /boot

>>I doubt that, diabetes and cataracts that go with 75 years are slowly doing
>>their thing.

>>As I suspected at any rate.  Sam should be correct.

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75 years??

Yes, sam should be correct.

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>>---------- Forwarded message ----------
>>From: Tom H <tomh0665@xxxxxxxxx>
>>To: users@xxxxxxxxxxxxxxxxxxxxxxx
>>Date: Sat, 12 Jun 2010 08:59:37 -0400
>>Subject: Re: Amazing problem of /boot

>>Thanks for the df output. I should have asked for it too.

>>Unless you need /boot for an administrative task (like generating an
>>initramfs or editing grub.conf), you don't need to have it mounted for
>>your system to run. There are even some sysadmins who unmount it
>>automatically.

>>Is the extra "c" in the fsck_pass field of /boot in your fstab or did
>>you add it by mistake when you posted your fstab? I doubt that this
>>could make /boot unmount, but you never know.

>>What is the output of
>># blkid -c /dev/null -t UUID=a1198e23-8da4-47c4-90f1-
>>d516fef0b796

>>and what is the output of
>># mkdir /mnt/testboot
>># mount -U a1198e23-8da4-47c4-90f1-d516fef0b796 /mnt/testboot
>># ls -l /mnt/testboot

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yes it may be unmounted, but i didn't append any things like, 'c' and that also in 'fstab' file, but i just tried to improve the bandwidth as shown at the page:

http://www.fedoraguide.info/index.php?title=Fedora11#Improving_your_bandwidth

and i never knew that it would cause the automatic unmount of /boot and i see it empty afterwards.

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>>---------- Forwarded message ----------
>>From: Ed Greshko <Ed.Greshko@xxxxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 20:34:32 +0800
>>Subject: Re: Amazing problem of /boot

>>No problem....  I also think you've confused mtab with fstab.

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yes, that seems to be.

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>>---------- Forwarded message ----------
>>From: "W.H. Kalpa Pathum" <callkalpa@xxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 18:01:59 +0530
>>Subject: Re: Amazing problem of /boot

>>OOps I got it all messed up. Pallav has an entry for /boot in fstab. I
>>didn't notice it earlier.

>>Extremely sry.

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Not a problem. Discussing the issues makes it easy.

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>>---------- Forwarded message ----------
>>From: "W.H. Kalpa Pathum" <callkalpa@xxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 17:59:55 +0530

>>My system works fine. I have files inside /boot. And my fstab also
>>doesn't show that /boot is mounted. As I know fstab only shows the
>>mounted partitions. My /home is in a separate partition and it's there
>>in fstab. But I haven't allocated a separate partition for /boot and
>>it's not mentioned in fstab.

>>So not having /boot in fstab doesn't indicate that it is not mounted
>>nor it may be empty or such, isn't it?

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while installing the fedora 11, i didn't creat any partitions, just installed automatically, so that created a confusion. and still it is.

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>>---------- Forwarded message ----------
>>From: Ed Greshko <Ed.Greshko@xxxxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 20:29:23 +0800

>>It points out that your eyesight is better than mine.

>>And, as Sam pointed out, would explain why /boot isn't mounted.

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editing /etc/fstab may cause this but i am not sure.

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>>---------- Forwarded message ----------
>>From: Sam Sharpe <lists.redhat@xxxxxxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 13:16:46 +0100
>>Subject: Re: Amazing problem of /boot

>>The fstab man page says:

    >>  The fifth field, (fs_freq),  is  used  for  these  filesystems  by  the
>>      dump(8)  command  to determine which filesystems need to be dumped.  If
>>      the fifth field is not present, a value of zero is  returned  and  dump
>>      will assume that the filesystem does not need to be dumped.

>>      The  sixth field, (fs_passno), is used by the fsck(8) program to deter-
    >>  mine the order in which filesystem checks are done at reboot time.  The
>>      root  filesystem  should  be specified with a fs_passno of 1, and other
    >>  filesystems should have a fs_passno of 2.  Filesystems within  a  drive
>>      will  be checked sequentially, but filesystems on different drives will
    >>  be checked at the same time to utilize  parallelism  available  in  the
>>      hardware.   If  the sixth field is not present or zero, a value of zero
    >>  is returned and fsck will assume that the filesystem does not  need  to
>>      be checked.

>>So I believe that you've diagnosed the problem. "2c" isn't a valid
>>option and may be throwing whatever parses the mount options at boot
>>off. This might cause /boot not to mount, which isn't a big problem as
>>it's only necessary to mount it when installing new kernels or editing
>>grub.conf. Pallav should try removing the "c" from the end of that
>>line and see if that corrects the problem.


>>--
>>Sam

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yes, i would remove that 'c' but i don't know why it is there, only i added was swappiness and the noatime and nodiratime.

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>>---------- Forwarded message ----------
>>From: Gene Heskett <gene.heskett@xxxxxxxxx>
>>To: users@xxxxxxxxxxxxxxxxxxxxxxx
>>Date: Sat, 12 Jun 2010 08:11:19 -0400
>>Subject: Re: Amazing problem of /boot

>>And what precisely does this '1 2c' do?

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i also don't know why it is there and how it came?

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>>---------- Forwarded message ----------
>>From: Ed Greshko <Ed.Greshko@xxxxxxxxxxx>
>>To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
>>Date: Sat, 12 Jun 2010 19:47:52 +0800
>>Subject: Re: Amazing problem of /boot

>>This shows that /boot has been "unmounted".

>>So, really, everything is OK.  All you have to do is to type "mount
>>/boot" as root.

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yes, but mounting it also gives some errors becuase may be fstab edited in wrong ways.

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>>---------- Forwarded message ----------
>>From: Pallav Jain <b330bkn@xxxxxxxxx>
>>To: users@xxxxxxxxxxxxxxxxxxxxxxx
>>Date: Sat, 12 Jun 2010 16:47:26 +0530
>>Subject: Re: Amazing problem of /boot
>>today i am amazed to see that my /boot folder is empty and i am unable to decide and generate the reason(s) for it, why suddenly is it happening, i my self not able to understand >>though i have installed fedora core 11 and updated all the packages via GUI, irrespective of the fact that whether the package could be of any utility or not for my usage.

>>till yesterday everything was there okay and today /boot contents are missing only the empty directory /boot is there??

>>The changes i did today:

>>1. Disabled the root login by uncommenting the second lines of the files:

>>/etc/pam.d/gdm
>>/etc/pam.d/gdm-password

>>2. Tried to improve the bandwidth, as per:

>> http://www.fedoraguide.info/index.php?title=Fedora11#Improving_your_bandwidth

>>/etc/sysctl.conf edited, swappiness edited, noatime and nodiratime added in /etc/fstab

>>3. installed preload and implemented the improvements via tmpfs.

>>I am amazed to see this THOUGH I AM ABLE TO LOGIN.

>>The output of the file /etc/fstab is:

..............
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