Updating e2fsprogs for ext4 support

Altera_Forum · ‎10-07-2010

I'm wanting to experiment with the performance capabilities of EXT4 on a Compact Flash on my Cyclone II Dev Board .

In the filesystems I have enabled EXT4 and I've got my Compact Flash mounted as EXT4. When I power up and I try and do a:

e2fsck -pv /dev/sda1

It tells me my e2fsck does not support EXT4 and to update.

How do I do that ?

I see the latest version of e2fsprogs is 1.41.12 and the current uClinux-dist has 1.40.9 and e2fsprogs-lib-1.41.0.

Thanks in advance.

Altera_Forum · ‎10-07-2010

You can update an app or library in uClinux-dist something like this:

Find if there are any patches/differences in the uClinux-dist version to the same version from upstream.

Put the new version next to the old version in the directory (i.e. uClinux-dist/user/appname).

Apply any patches to the new version.

Modify the top level Makefile for that app to use the new version.

Hope that it just works. ;)

Altera_Forum · ‎10-07-2010

Thanks - Now could you clarify how to:

Find if there are any patches/differences in the uClinux-dist version to the same version from upstream.

I'm pretty sure I'm able to do the rest.

I've been trying to do a ./update yesterday and today and I keep getting

sopc.et.ntust.edu.tw[0: 140.118.20.145]: errno=Connection timed out

fatal: unable to connect a socket (Connection timed out)

for everything ...

Altera_Forum · ‎10-08-2010

--- Quote Start ---

Thanks - Now could you clarify how to:

Find if there are any patches/differences in the uClinux-dist version to the same version from upstream.

--- Quote End ---

I've just downloaded the upstream version and did a diff. I suppose the information should be in the git history, but that depends on how the code was imported. For example:

git log -p user/portmap/portmap_6.0

shows 2 patches: the initial import of version 6.0, and the uClinux-dist patch that added the NOMMU macro and broke it.

Altera_Forum · ‎10-18-2010

I'm getting an error when I "make"

**************************************

make[5]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12/intl'

make[5]: Entering directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12/intl'

make[5]: Nothing to be done for `install-shlibs'.

make[5]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12/intl'

making install in e2fsck

make[5]: Entering directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12/e2fsck'

CC ../../e2fsprogs-1.41.12/e2fsck/util.c

MKINSTALLDIRS //sbin /usr/share/man/man8

GEN /home/janet/nios2-linux/uClinux-dist/user/busybox/build-busybox/Makefile

Using /home/janet/nios2-linux/uClinux-dist/user/busybox/busybox as source for busybox

LD e2fsck

e2fsck.elf2flt(.text+0x12afc): In function `init_resource_track':

../../e2fsprogs-1.41.12/e2fsck/util.c:293: undefined reference to `sbrk'

e2fsck.elf2flt(.text+0x12c34): In function `print_resource_track':

../../e2fsprogs-1.41.12/e2fsck/util.c:358: undefined reference to `sbrk'

collect2: ld returned 1 exit status

make[5]: *** [e2fsck] Error 1

make[5]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12/e2fsck'

make[4]: *** [install-progs-recursive] Error 1

make[4]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs/build-e2fsprogs-1.41.12'

make[3]: *** [all] Error 2

make[3]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/e2fsprogs'

make[2]: *** [e2fsprogs] Error 2

make[2]: *** Waiting for unfinished jobs....

make[4]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/busybox/build-busybox'

make[3]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user/busybox'

make[2]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user'

make[1]: *** [all] Error 2

make[1]: Leaving directory `/home/janet/nios2-linux/uClinux-dist/user'

make: *** [subdirs] Error 1

[janet@localhost uClinux-dist]$

***********************************************

How can I get "sbrk" linked correctly ?

Thanks in advance

Altera_Forum · ‎10-26-2010

The e2fsprogs-1.41.12 is available in trunk branch which we used for mmu,

Just update the makefile to include fsck.ext4 etc.

uClinux-dist/user/e2fsprogs/Makefile

Altera_Forum · ‎10-26-2010

I still have the error. Here are the steps I took

From uClinux-dist directory

e2fsprogs-1.41.12

1. make clean (to start fresh)

2. put the new folder -- e2fsprogs-1.41.12 under user/e2fsprogs

3. modified the Makefile as instructed.

4. make menuconfig - defaulting everything

5. make vendor_hwselect SYSPTF=my.ptf

6. make

ALL WORKS

7. make menuconfig - (selected to customize Application/Library settings)

under Filesystem Application - EXT2 - selected "e2fsck"

8. make

AND I get the same error posted earlier. So what am I missing ?

Thanks in advance