[Buildroot] [Bug 14196] New: when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[Buildroot] [Bug 14196] New: when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14196

            Bug ID: 14196
           Summary: when using raspberrypicm4io_64_defconfig, make fails
                    with mkfs.ext4: No such file or directory while trying
                    to determine filesystem size
           Product: buildroot
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: leon@exquisip.nl
                CC: buildroot@uclibc.org
  Target Milestone: ---

Created attachment 9086
  --> https://bugs.busybox.net/attachment.cgi?id=9086&action=edit
patch fs/ext2/ext2.mk to touch file that'll contain filesystem

After using raspberrypicm4io_64_defconfig, then doing make, the build process
ends as follows:

...
printf '   \n' >>
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/fakeroot
printf '   \n' >>
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/fakeroot
printf '        rm -f /home/ldr/src/buildroot/output/images/rootfs.ext2\n      
/home/ldr/src/buildroot/output/host/sbin/mkfs.ext4 -d
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/target -r 1 -N 0 -m 5 -L
"rootfs" -O ^64bit /home/ldr/src/buildroot/output/images/rootfs.ext2 "120M" ||
{ ret=$?; echo "*** Maybe you need to increase the filesystem size
(BR2_TARGET_ROOTFS_EXT2_SIZE)" 1>&2; exit $ret; }\n' >>
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/fakeroot
chmod a+x /home/ldr/src/buildroot/output/build/buildroot-fs/ext2/fakeroot
PATH="/home/ldr/src/buildroot/output/host/bin:/home/ldr/src/buildroot/output/host/sbin:/home/ldr/.asdf/shims:/opt/asdf-vm/bin:/usr/local/bin:/usr/bin:/var/lib/snapd/snap/bin:/usr/local/sbin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl"
FAKEROOTDONTTRYCHOWN=1 /home/ldr/src/buildroot/output/host/bin/fakeroot --
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/fakeroot
rootdir=/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/target
table='/home/ldr/src/buildroot/output/build/buildroot-fs/full_devices_table.txt'
mke2fs 1.46.3 (27-Jul-2021)
mkfs.ext4: No such file or directory while trying to determine filesystem size
*** Maybe you need to increase the filesystem size
(BR2_TARGET_ROOTFS_EXT2_SIZE)
make: *** [fs/ext2/ext2.mk:63:
/home/ldr/src/buildroot/output/images/rootfs.ext2] Error 1

--

I can reproduce in commandline by just running:

/home/ldr/src/buildroot/output/host/sbin/mkfs.ext4 -d
/home/ldr/src/buildroot/output/build/buildroot-fs/ext2/target -r 1 -N 0 -m 5 -L
"rootfs" -O ^64bit /home/ldr/src/buildroot/output/images/rootfs.ext2 "120M"

--

so the mkfs.ext4 wants the file that will contain the filesystem to already
exist, which it doesnt, becuase it's removed one command earlier.

--

I was able to fix my issue by adding a touch in fs/ext2/ext2.mk.

Please see attachment.

But not sure if this is a correct way to fix my issue.

Hope it helps.

Thanks,

Leon

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[Buildroot] [Bug 14196] when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14196

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned@buildroot.uclibc |yann.morin.1998@free.fr
                   |.org                        |
                 CC|                            |yann.morin.1998@free.fr
             Status|NEW                         |ASSIGNED

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[Buildroot] [Bug 14196] when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14196

--- Comment #1 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Leon, All,

Thanks the report. I can confirm indeed that e2fsprogs 1.46.3 now requirtes
that
the file where to generate the filesystem must pre-exist. This is a regression
in
2fsprogs itself.; indeed, I've tested 1.46.2 and 1.46.4, and both work without
the touch.

And indeed, the e2fsprogs commit53464654bd33 (mke2fs: fix creating a file
system
image w/o a pre-existing file) states:

    By deferring the call to check_plausible() in commit
    942b00cb9d2f ("mke2fs: do not warn about a pre-existing partition
    table when using a non-zero offset") this behaviour was broken.

I'll try to see if we can cook up a backport of that commit for the 2021.08.x
branch. For master, a bump to 1.46.4 will fix the issue.

Regards,
Yann E. MORIN.

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[Buildroot] [Bug 14196] when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14196

--- Comment #2 from Leon de Rooij <leon@exquisip.nl> ---
Hi Yann, thanks for the quick followup! :)

best regards,

Leon

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[Buildroot] [Bug 14196] when using raspberrypicm4io_64_defconfig, make fails with mkfs.ext4: No such file or directory while trying to determine filesystem size

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=14196

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #3 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Leon, All,

Thanks for your report. We believe this issue has now been fixed with commit
https://git.buildroot.org/buildroot/commit/?id=4ad23552c6

Regards,
Yann E. MORIN.

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