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

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Message-ID: <CAG-6nk8vnj_tJzhjqLYRexrbJoGiVzP_wjam8ucm=_DB_Yx75w@mail.gmail.com>
Date:   Fri, 3 Jul 2020 01:04:33 +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

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