Read-Only File System

Discussion in 'Huawei Ideos S7' started by TechRemedy, Jan 8, 2011.

  1. TechRemedy

    TechRemedy Member

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    I'm a little concerned about something. After rooting my S7, every time I tried to move a file into /system/bin/ I would get a "Read-only file system" error. I rooted the device using the UniversalAndRoot app. After reading around, I decided to unroot it and uninstall the UniversalAndRoot app. Then I installed z4root and re-rooted the device using z4root. I am still getting the same "Read-only file system" error when I try to do anything that requires write permissions. As far as I can tell, the only place that I can write, even as root, is the sdcard. Has anyone else had this problem? If so, what was the solution?
     
  2. TechRemedy

    TechRemedy Member

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    Okay, I just ran the mount command and it says that /system is mounted as read-only. I know I can probably just re-mount it, but I'm a little nervous. Although, I'm sure that if I mount it as read/write, it will return to read-only after a reboot. Have you guys come across this?
     
  3. ivyvisors

    ivyvisors Senior Member

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    Hi TechRemedy,

    This is actually quite normal, /system/ is mounted read only. you can fix this by running the following command:

    mount -o rw,remount -t yaffs2 /dev/block/mtdblock1 /system

    once done

    mount -o ro,remount -t yaffs2 /dev/block/mtdblock1 /system

    will mount the /system partition back to read only.

    (normally system is read only)

    ~Ivy
     
  4. ivyvisors

    ivyvisors Senior Member

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    TechRemedy,

    Yes a reboot will fix =)

    ~Ivy
     
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  5. TechRemedy

    TechRemedy Member

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    Thanks Ivy!
     
  6. TechRemedy

    TechRemedy Member

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    Gah. Okay, so now /system is indeed mounted as read/write, but when I try to copy a file from the sdcard to /system/bin I get the following error:

    I'm trying to move a compiled binary of wget to the /system/bin folder. I've been using Linux for years and Android is starting to make me feel dumb. :) Any help is always appreciated!
     
  7. TechRemedy

    TechRemedy Member

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    I managed to cheat it by doing the following while my pwd is the folder on my sdcard that has the wget binary:

    I'm rebooting right now to see if it worked...I have my doubts...
     
  8. TechRemedy

    TechRemedy Member

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    holy hell, it worked!
     
  9. ivyvisors

    ivyvisors Senior Member

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    wow it kept the exacutable bit, weird. normally when you copy something this way, you'd need to do chmod 755 /path/to/file.

    ~Ivy
     
  10. TechRemedy

    TechRemedy Member

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    No, I had to chmod it after it created the new file.
     

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