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TDA2HG: ps command support in linux based on VSDK 03 05

terence xia
Genius 3105 points
Part Number: TDA2HG


Hello，

We use tda2hg device based on VSDK 03 05.We set it as  Linux + BIOS mode.  It can not support 'ps -ef' command in shell, but 'ps -l' is normal. We need 'ps -ef' command, how do we do? Could you help to have a look?

=====================================================

root@dra7xx-evm:~# ps -ef
ps: invalid option -- 'e'
BusyBox v1.24.1 (2018-09-17 14:56:41 IST) multi-call binary.

Usage: ps
root@dra7xx-evm:~# ps -l
S UID PID PPID VSZ RSS TTY STIME TIME CMD
S 0 1 0 5076 4188 0:0 09:22 00:00:04 {systemd} /sbin/init
S 0 2 0 0 0 0:0 09:22 00:00:00 [kthreadd]
S 0 3 2 0 0 0:0 09:22 00:00:00 [ksoftirqd/0]
S 0 4 2 0 0 0:0 09:22 00:00:02 [kworker/0:0]
S 0 5 2 0 0 0:0 09:22 00:00:00 [kworker/0:0H]
S 0 6 2 0 0 0:0 09:22 00:00:00 [kworker/u4:0]
S 0 7 2 0 0 0:0 09:22 00:00:00 [rcu_preempt]

  • 0
    TI__Mastermind 42515 points

    Hi Terence,

    the ps command is part of BusyBox (which is a community project and not developed by TI) and supports limited number of options. I did some experiments and found that only options '-l' and '-w' are supported.

    On the other hand running 'ps -l' gives more verbose output than 'ps -ef'. Doesn't it work for you?

    Regards,

    Yordan

  • 0 in reply to Yordan Kamenov
    Genius 3105 points

    Hi Yordan,

    Thank you very much.

    For TI VSDK, Can we add or modify the command into BusyBox? where can we config it in the VSDK code?

    Terence

  • 0 in reply to terence xia
    TI__Mastermind 42515 points

    Hi Terence,

    you can check section "3.7 Build Linux Vision SDK file-system" in VisionSDK_Linux_UserGuide.pdf for direction how to use Yocto to add/rebuild components of the rootfs.

    BTW, I see that 'ps' command in PSDKLA's rootfs is not a symlink to busybox, but a standalone program which might be the full version. You can download "tisdk-rootfs-image-dra7xx-evm.tar.xz" from here:

    and copy /bin/ps.procps to your rootfs (in PSDKLA /bin/ps is a symlink to /bin/ps.procps) and check if that works.

    Regards,

    Yordan

  • 0 in reply to Yordan Kamenov
    Genius 3105 points

    Hi Yordan,

    We don't find the chapter 3.7  VisionSDK_Linux_UserGuide.pdf. Because, We use VSDK 03 05. I don't understand that you said "copy /bin/ps.procps to your rootfs (in PSDKLA /bin/ps is a symlink to /bin/ps.procps)".

    Thanks

    Terence