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Old 12-06-2007, 04:49 AM   #1
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Question Symlinks working from "inside" 'chroot' to "outside" ?

Hi all,

I am building a script which will bootstrap a linux installation, and at one point doing a chroot to the target system "root" directory. But since my install scripts are also needed by the target installation, and they are located outside chrooted "root" directory, how can I reach them? I do not want to copy them to some place inside chroot, but i thought of creating a /tmp/install-scripts symlink which will point to a location outside chroot, however i am not sure the filesystem will be able to locate the target of such link?

Simpler put i have a host system with a bash shell running scripts from directory /mnt/my-usb-stick/install/install-script-1, which does a chroot into a, say, /mnt/install-target. Since all installation is scripted, chroot is too, and does a "env -i" environment cleanup which in turn calls another script. THe problem is, that another script already running from chrooted tree, will not be able to locate the /mnt/my-usb-stick/install/* since its a chrooted system..

Hope this makes sense. Thanks in advance.
Old 12-06-2007, 05:28 AM   #2
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You need to use "bind mount" if you want to create a link from inside the chroot to outside. And you need to run the mount command out of chroot..

mount /out/side /chroot/point_to_outside -o bind
Old 12-07-2007, 01:09 AM   #3
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Thanks, i already figured it out. I did exactly as you said

Forgive me for starting a thread without googling first...


automated, chroot, script, symlink

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