resize "/ " under LVM - SOLVED 2005-10-06 - By Collins, Kevin (MindWorks)
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John,
I've got one of my systems which refuses to extend. Every time I
run the resize2fs or e2fsadm command(s), it gives me the message:
Please run 'e2fsck -f /dev/vg00/lvol1' first.
I've run it manually several times, as well as it being run
automatically by e2fsadm... I'm not sure what is going on.
Any ideas?
Thanks,
Kevin
-- --Original Message-- --
From: taroon-list-bounces@(protected)
[mailto:taroon-list-bounces@(protected)] On Behalf Of Collins, Kevin
(MindWorks)
Sent: Wednesday, October 05, 2005 2:06 PM
To: taroon-list@(protected)
Cc: John Haxby
Subject: RE: resize "/" under LVM - SOLVED
John's answer below solved the problem.
Thanks John for all the help - you saved me a day's work! If I ever make
it to your side of the pond, I'll buy you a pint!
Kevin
-- --Original Message-- --
From: John Haxby [mailto:jch@(protected)]
Sent: Wednesday, October 05, 2005 1:23 PM
To: KCollins@(protected)
Subject: Re: resize "/" under LVM
My battery is going flat so I can't go into much detail right now.
Briefly:
1. Don't mount the file system images.
2. vgscan to find the volume groups
3. vgchange -a y /dev/VolGroup00 (or whatever) to acitvate it
4. resize /dev/VolGroup00/LogVol00
Collins, Kevin (MindWorks) wrote:
>John,
>
> I can extend the lvol on-line, but the filesystem still needs to
>be extended. So, I tried booting in rescue mode 2 ways:
>
>1) allowing rescue mode to mount the local filesystems. In this mode, I
>can't get /mnt/sysimage umounted because a kernel process has the
>filesystem busy.
>
>2) skipping the mount, I can then not extend the fileystem because
there
>is no /dev/vg00/lvol1 device :)
>
>Is there something I am not seeing here?
>
>Thanks, it feels like I'm right on the verge of fixing it...
>
>Kevin
>
>-- --Original Message-- --
>From: taroon-list-bounces@(protected)
>[mailto:taroon-list-bounces@(protected)] On Behalf Of John Haxby
>Sent: Wednesday, October 05, 2005 8:56 AM
>To: Discussion of Red Hat Enterprise Linux 3 (Taroon)
>Subject: Re: resize "/" under LVM
>
>Collins, Kevin (MindWorks) wrote:
>
>
>
>>I can't believe nobody has any help to offer on this... Usually, there
>>
>>
>
>
>
>>is a response to everything. Anyone?
>>
>>
>
>Well, I looked at the original message and thought "oh dear, what a
>mess, where to start?"
>
>
>
>> I just used kickstart to install 3 systems with U6. I used the
>>
>>
>
>
>
>>same partition sizes as I had previously used with RH9, and
>>unfortunately I now have about 700 bytes free in "/". Is it possible
>>to extend this filesystem under LVM?
>>
>>
>>
>On RHEL3, I'd do this by booting a rescue disk and extending the
logical
>
>volume and file system off line. In fact, I have done just that at
>least once and it works just fine.
>
>
>
>>I tried creating a new LVOL (lvolslash) that is bigger, copying all
>>the contents of / (lvol1) to it, changing /etc/fstab and
>>/etc/grub.conf to point to the new lvolslash. The system reboots fine,
>>
>>
>
>
>
>>and a "df" shows my new lvol mounted as root. However, the df also
>>shows the size of my original lvol1 and says it is mounted when I try
>>to resize2fs it...
>>
>>
>>
>Did you re-run mkinitrd? (The linuxrc in there contains a line to
>mount the root logical volume as /sysroot.) That *might* fix things
up
>
>and then you can delete the old logical volume. If not, undo what
>you've done so far, delete the new logical volume and go back to doing
>an off-line resize.
>
>
>
>>Can I fix this? Is the ext2online command functional on RHEL 3? I'd
>>prefer not to redo thepost work I have already completed.
>>
>>
>>
>ext2online isn't available (or doesn't work, or both) for RHEL3, you
>need to do file system resizing off line. If it's the root file
system
>
>that means booting off a rescue disk.
>
>jch
>
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>
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