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Old 08-25-2017, 04:48 AM   #1
zaoqi
github.com/zaoqi
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device is busy!

Code:
# chroot.sh
......
# fuser /dev
# exit
umount: /mnt/base-us/root/dev: device is busy
umount: /mnt/base-us/root/dev: device is busy
umount: /mnt/base-us/root: device is busy
umount: /mnt/base-us/root: device is busy
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Old 08-25-2017, 07:48 AM   #2
knc1
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Do you have a question?
lsof or ps is the answer.
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Old 08-26-2017, 01:07 AM   #3
nasser
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Like his device, the guy is so busy, he can't take the time to frame a proper question/request...

Just keeps dumping his error logs here as individual posts...

Oh well, it takes all kinds...
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Old 08-26-2017, 07:46 AM   #4
knc1
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Quote:
Originally Posted by nasser View Post
Like his device, the guy is so busy, he can't take the time to frame a proper question/request...

Just keeps dumping his error logs here as individual posts...

Oh well, it takes all kinds...
https://github.com/ryanhanwu/How-To-...-The-Smart-Way
Specifically:
https://github.com/ryanhanwu/How-To-...A0%B8%E4%BA%86
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Old 08-28-2017, 04:11 PM   #5
theol0403
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Quote:
Originally Posted by zaoqi View Post
Code:
# chroot.sh
......
# fuser /dev
# exit
umount: /mnt/base-us/root/dev: device is busy
umount: /mnt/base-us/root/dev: device is busy
umount: /mnt/base-us/root: device is busy
umount: /mnt/base-us/root: device is busy
Again I answer you with a response you dont deserve. Device is busy means that you have:

Either a program running inside the chroot that you have not terminated - "ps aux" will show you which ones, I find it is often dbus. Terminate that program by typing "kill <PID of process>".

Or there is another sub-folder that linux has mounted within your chroot without you knowing. Typing "mount" will show you what. I find usually /dev/pts is the culprit. Than "umount <location>" (or whatever fuse is) to unmount your folder step by step backing up each time.
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Old 08-28-2017, 04:39 PM   #6
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Quote:
Originally Posted by theol0403 View Post
Again I answer you with a response you dont deserve. Device is busy means that you have:

Either a program running inside the chroot that you have not terminated - "ps aux" will show you which ones, I find it is often dbus. Terminate that program by typing "kill <PID of process>".

Or there is another sub-folder that linux has mounted within your chroot without you knowing. Typing "mount" will show you what. I find usually /dev/pts is the culprit. Than "umount <location>" (or whatever fuse is) to unmount your folder step by step backing up each time.
Even with telling him to RTFM (in Chinese) hasn't gotten him to learn about:
umount -l

Last edited by knc1; 08-28-2017 at 11:36 PM.
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Old 09-01-2017, 10:14 AM   #7
zaoqi
github.com/zaoqi
zaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beauty
 
Posts: 50
Karma: 32020
Join Date: Mar 2017
Location: Hangzhou Zhejiang China
Device: KT3,Kobo Aurd HD
Quote:
Originally Posted by nasser View Post
Like his device, the guy is so busy, he can't take the time to frame a proper question/request...

Just keeps dumping his error logs here as individual posts...

Oh well, it takes all kinds...
Because of the Chinese exam
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Old 09-01-2017, 10:15 AM   #8
zaoqi
github.com/zaoqi
zaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beautyzaoqi does all things with Zen-like beauty
 
Posts: 50
Karma: 32020
Join Date: Mar 2017
Location: Hangzhou Zhejiang China
Device: KT3,Kobo Aurd HD
Quote:
Originally Posted by knc1 View Post
Even with telling him to RTFM (in Chinese) hasn't gotten him to learn about:
umount -l
What's RTFM?
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Old 09-01-2017, 10:18 AM   #9
knc1
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Quote:
Originally Posted by zaoqi View Post
What's RTFM?
https://github.com/ryanhanwu/How-To-...A0%B8%E4%BA%86
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