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Difference between revisions of "Install/Chroot"
(/mnt/funtoo/etc/resolv.conf lol still outside of chroot here. i set it within chroot on my build script.) |
m (fix chroot prompts exactly mirroring behavior that goes on with the prompt, and then forcing ps1 reassignment upon users.) |
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| Line 20: | Line 20: | ||
{{console|body= | {{console|body= | ||
###i## cd /mnt/funtoo | ###i## cd /mnt/funtoo | ||
###i## mount -t proc none proc | /mnt/funtoo ###i## mount -t proc none proc | ||
###i## mount --rbind /sys sys | /mnt/funtoo ###i## mount --rbind /sys sys | ||
###i## mount --rbind /dev dev | /mnt/funtoo ###i## mount --rbind /dev dev | ||
###i## mount --rbind /run run | /mnt/funtoo ###i## mount --rbind /run run | ||
}} | }} | ||
| Line 36: | Line 36: | ||
<!--T:10--> | <!--T:10--> | ||
{{console|body=###i## env -i HOME=/root TERM=$TERM /bin/chroot /mnt/funtoo bash -l | {{console|body= | ||
/mnt/funtoo ###i## env -i HOME=/root TERM=$TERM /bin/chroot /mnt/funtoo bash -l | |||
/ # | |||
/ ###i##export PS1="FUNTOO $PS1" | |||
%chroot% }} | %chroot% }} | ||
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<!--T:12--> | <!--T:12--> | ||
Test internet name resolution from within the chroot: | Test internet name resolution from within the chroot: | ||
{{console|body=%chroot% ##i##ping -c 5 google.com}} | {{console|body=%chroot% ##i##ping -c 5 google.com}} | ||
Revision as of 13:56, December 7, 2020
Install Guide: Chroot into Funtoo
| Install Guide, Chapter 9 | < Prev | Next > |
To install Funtoo Linux, the chroot command is first used. The chroot command will "switch into" the new Funtoo Linux system, so the commands you execute after running "chroot" will run within your newly-extracted Funtoo Linux system.
- if you would like to compile in ram, expand your run tmpfs to be half of your ram:
root # mount -t tmpfs tmpfs /run
Before chrooting, there are a few things that need to be done to set up the chroot environment. You will need to mount /proc, /sys and /dev inside your new system. Use the following commands to do so:
root # cd /mnt/funtoo /mnt/funtoo # mount -t proc none proc /mnt/funtoo # mount --rbind /sys sys /mnt/funtoo # mount --rbind /dev dev /mnt/funtoo # mount --rbind /run run
You'll also want to copy over resolv.conf or insert cloudflares DNS in order to have proper resolution of Internet hostnames from inside the chroot:
root # cp /etc/resolv.conf /mnt/funtoo/etc/ or root # echo "nameserver 1.1.1.1" > /mnt/funtoo/etc/resolv.conf
Now you can chroot into your new system. Use env before chroot to ensure that no environment settings from the installation media are pulled in to your new system:
/mnt/funtoo # env -i HOME=/root TERM=$TERM /bin/chroot /mnt/funtoo bash -l / # / #export PS1="FUNTOO $PS1" chroot #
For users of live CDs with 64-bit kernels installing 32-bit systems: Some software may use uname -r to check whether the system is 32 or 64-bit. You may want to append linux32 to the chroot command as a workaround, but it's generally not needed.
If you receive the error "chroot: failed to run command `/bin/bash': Exec format error", it is most likely because you are running a 32-bit kernel and trying to execute 64-bit code. Make sure that you have selected the proper type of kernel when booting SystemRescueCD.
Test internet name resolution from within the chroot:
chroot # ping -c 5 google.com
If you can't ping, make sure that /etc/resolv.conf specifies a valid IP address for a reachable nameserver in its nameserver setting.
Congratulations! You are now chrooted inside a Funtoo Linux system. Now it's time to get Funtoo Linux properly configured so that Funtoo Linux will start successfully, without any manual assistance, when your system is restarted.
| Install Guide, Chapter 9 | < Prev | Next > |