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Old June 25th, 2011, 17:12
frankgrimes97 frankgrimes97 is offline
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Default ELF binary type "0" not known.
Hi all,

I am trying to install a product that ships as RedHat Enterprise Linux 5 certified RPMs. After successfully installing the RPMs and trying to launch binaries, I get the following error:

Code:
ELF binary type "0" not known.
./run: Exec format error. Binary file not executable.
I did some searching online and even tried the following:

brandelf -t Linux run

But then it just complains that type "3" is not known either.

I'm running FreeBSD 8.2-RELEASE and I believe that Linux compatibility is correctly enabled as evidenced by the output of kldstat:
Code:
Id Refs Address            Size     Name
 1   20 0xffffffff80100000 c9fe20   kernel
 2    1 0xffffffff80da0000 202a58   zfs.ko
 3    2 0xffffffff80fa3000 4940     opensolaris.ko
 4    2 0xffffffff81022000 1cecd    linux.ko
 5    1 0xffffffff8103f000 3edb     linprocfs.ko
I also have the linux_base-f10 port installed (tried also with linux_base-fc6 with the same results).

Any help would be much appreciated.

Thanks,

Frank Grimes
Last edited by DutchDaemon; June 25th, 2011 at 21:55. Reason: Proper formatting: http://forums.freebsd.org/showthread.php?t=8816
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Old June 25th, 2011, 19:23
kpedersen kpedersen is offline
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I remember reading in the handbook that you need to rebrand the elf binary.

I don't use Linux compatibility so perhaps someone else could explain this some more.
Last edited by DutchDaemon; June 25th, 2011 at 21:56.
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Old June 25th, 2011, 21:09
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It is some time I've used linux-compat mode. I did make myself some notes so I know how to proceed if I need it in a future. Maybe this helps:

Install rpm:

# rpm --ignoreos --root /usr/compat/linux --dbpath /var/lib/rpm --nodeps --replacepkgs --install <PKG>.RPM

Update libs:

# /usr/compat/linux/sbin/ldconfig

Mark the binary for the correct ABI with brandelf(1):

# brandelf -t linux /path/to/binary
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Old June 26th, 2011, 04:37
frankgrimes97 frankgrimes97 is offline
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As I mentioned, I did try running brandelf -t Linux but it then simply complains that ELF binary type "3" is not known. Is there something I can check that I might have missed in setting up Linux compatibility?

Thanks,

Frank Grimes
Last edited by DutchDaemon; June 26th, 2011 at 19:25.
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Old June 27th, 2011, 05:25
frankgrimes97 frankgrimes97 is offline
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As a simpler test I tried installing a RedHat rpm of Curl (curl-7.15.5-9.el5.x86_64.rpm) and I still get ELF binary type "3" is not known after running brandelf -t Linuxon it.

Can someone else try this on FreeBSD 8.2 with linux_base-f10 and let me know if it works? Maybe then we can more easily track down what's missing in my configuration.

Thanks,

Frank Grimes
Last edited by DutchDaemon; June 27th, 2011 at 13:00. Reason: Proper formatting: http://forums.freebsd.org/showthread.php?t=8816
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Old June 27th, 2011, 05:35
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Do you have Linux compatibility fully set up, including linproc in /etc/fstab?

Otherwise, watching what ftp/linux-f10-curl does during install might be helpful.
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Old June 27th, 2011, 09:23
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Clean the entire Linux enviroment, reinstall Linux base, and try downloading the 32 bit version of the binary you're interested in. The linux(4) compat layer emulates a (partial) 32 bit Linux system ABI and you're installing a 64 bit package (x86_64)

Cheers
Last edited by DutchDaemon; June 27th, 2011 at 13:04.
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Old June 27th, 2011, 17:47
frankgrimes97 frankgrimes97 is offline
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Quote:
Originally Posted by vertexSymphony View Post
Clean the entire Linux enviroment, reinstall Linux base, and try downloading the 32 bit version of the binary you're interested in. The linux(4) compat layer emulates a (partial) 32 bit Linux system ABI and you're installing a 64 bit package (x86_64)

Cheers
I don't know how I missed the fact that Linux compatibility is only 32-bit... I really need 64-bit so I guess I'm out of luck here.
Thanks for taking the time to clarify!

Frank Grimes
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