linux-ext4 - Re: Grow ext4 filesystem on mounted device

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Message-ID: <CAG-6nk8LDoPS85gVQ8+KLoPVGVP+PLYtBq5qaW2uMPO+ncL_pQ@mail.gmail.com>
Date:   Fri, 3 Jul 2020 01:09:48 +0530
From:   Alok Jain <jain.alok103@...il.com>
To:     Andreas Dilger <adilger@...ger.ca>
Cc:     linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: Grow ext4 filesystem on mounted device

This is what I found for sdd, looks like growpart didnt grow partition
of mounted device

 grep sdd /proc/partitions
   8       48  180355072 sdd
   8       49  173013999 sdd1

Thanks,
Alok

On Fri, Jul 3, 2020 at 1:04 AM Alok Jain <jain.alok103@...il.com> wrote:
>
> Thanks Andreas,
>
> Device has only one partition, I also ran partprobe post growpart but
> still no luck :(
>
> # grep sdd1 /proc/partitions
>    8       49  173013999 sdd1
>
> Thanks,
> Alok
>
> On Fri, Jul 3, 2020 at 12:59 AM Andreas Dilger <adilger@...ger.ca> wrote:
> >
> > On Jul 2, 2020, at 13:18, Alok Jain <jain.alok103@...il.com> wrote:
> > >
> > > Hi Experts,
> > >
> > > I want to grow the ext4 file system on mounted device by running
> > > resize2fs utility but it fails, same works in case of unmounted FS
> > > with additional invocation of e2fsck utility.
> > >
> > > This is what i am doing
> > >
> > > 1)Rescanning the device
> > > echo "1" | sudo tee /sys/block/sdd/device/rescan
> > > 2) Extending the partition
> > > growpart /dev/sdd 1
> > > 3) resizing the file system
> > > resize2fs /dev/sdd1
> > > resize2fs 1.43-WIP (20-Jun-2013)
> > > The filesystem is already 43253499 blocks long.  Nothing to do!
> >
> > What does "grep sdd1 /proc/partitions" show?  Is the kernel
> > aware of the larger partition size?
> >
> > > parted -s /dev/sdd1 print free
> > > Model: Unknown (unknown)
> > > Disk /dev/sdd1: 177GB
> > > Sector size (logical/physical): 512B/4096B
> > > Partition Table: loop
> > >
> > > Number  Start  End    Size   File system  Flags
> > > 1      0.00B  177GB  177GB  ext4
> > >
> > > Any help?
> > >
> > > Thanks,
> > > Alok