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howtos:general_admin:setting_up_a_slackware_chroot [2015/04/09 05:57 (UTC)]
aaditya add link to mkchroot script
howtos:general_admin:setting_up_a_slackware_chroot [2015/10/29 06:44 (UTC)]
dugan Added fstab section.
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-=== Setting up a Slackware chroot ===+==== Setting up a Slackware chroot ​====
-//Goal:// I wanted ​to setup a Slackware chroot ​in order to build 32 bit packages on my 64 bit system.+There are multiple reasons why you might want to set up a Slackware chroot
 +  * building ​32-bit packages on 64-bit multilib system 
 +  * building -stable packages on a -current system 
 +  * building (and testing) packages for SBo on a clean system
-== Obtaining ​Slackware installation of your desired architecture ==+For this guide, we'll create ​chroot at **/​chroot_folder** from **slackware-14.1-install-dvd.iso**.
-For 32 bit chroot I downloaded ​installation ​disks 1 and 2 from http://​www.slackware.com/​getslack/​ via torrent.+=== Obtaining ​Slackware ​installation ​of your desired architecture ===
-== Installing the packages ==+Start with a Slackware installation DVD. Download it from from http://​www.slackware.com/​getslack/​ via torrent.
-Create a folder which will contain ​the chroot.+=== Installing ​the packages ===
-Mount the installation ISO(s). After they have been mounted the packages in them (found under the //​slackware//​ folder) can be installed to the chroot folder with:+== Automatically ==
-''​installpkg --root <chroot-folder> a/*.t?z ap/*.t?z l/*.t?z n/*.t?​z''​+You can create your chroot ​and install Slackware into it using the following elegant script: [[http://dawoodfall.net/files/scripts/​bash/​mkchroot]]
-''​installpkg --root <​chroot-folder>​ d/*.t?z k/*.t?z t/*.t?z tcl/​*.t?​z''​+== Manually ==
-(additional sets can be installed in similar way)+First, create ​folder which will contain the chroot:
-An elegant script for the above: [[http://dawoodfall.net/​files/​scripts/​bash/​mkchroot]]+<code bash>​mkdir ​/chroot_folder<​/code>
-== Chroot ==+Mount the installation ISO:
-After the chroot folder ​has been populated with packages ​we can proceed ​to chroot ​into it ([[howtos:​slackware_admin:​how_to_chroot_from_media#​volume_mounting]]).+<code bash> 
 +mount -o loop slackware-14.1-install-dvd.iso /​mnt/​cdrom 
 +cd /​mnt/​cdrom 
 +After the ISO has been mounted, the packages ​(found under the //​slackware//​ or //​slackware64//​ folder) ​can be installed ​to the chroot ​folder with: 
 +<code bash> 
 +installpkg --root /​chroot-folder */*.t?z 
 +Then unmount the ISO: 
 +<code bash> 
 +umount /​mnt/​cdrom 
 +=== Mounting the Chroot === 
 +To have the chroot mounted permanently,​ add the following to your fstab: 
 +/dev             ​chroot_folder/​dev ​            none bind,auto 
 +/proc            chroot_folder/​proc ​           none bind,auto 
 +/sys             ​chroot_folder/​sys ​            none bind,auto 
 +/​etc/​resolv.conf chroot_folder/​etc/​resolv.conf none bind,auto 
 +If you don't want to reboot at this point, then you can mount the chroot manually: 
 +<code bash> 
 +mount /​chroot_folder 
 +Also, refer to: ([[howtos:​slackware_admin:​how_to_chroot_from_media#​volume_mounting]]). 
 +=== Chrooting into the Chroot === 
 +Now that the chroot is set up, you can chroot into it: 
 +<code bash>​chroot /​chroot_folder /​bin/​bash</​code>​
 === Updating packages === === Updating packages ===
-After that I setup slackpkg and updated ​the packages ([[slackware:​beginners_guide#​configure_a_package_manager]]).+After that, you can run slackpkg and update ​the packages([[slackware:​beginners_guide#​configure_a_package_manager]]).
-=== Mounting partitions ​===+=== Exiting ​===
-I needed to mount the partition which contained the SlackBuilds for which I wanted to make a packageI used the command:+When you're doneexited ​the chroot by pressing //Ctrl+d//.
-''​mount ​-B <​slackware-host-mount-point>​ <​chroot-mount-point>''​+=== One Use: Building 32-bit Packages ===
-(http://​www.thegeekstuff.com/​2013/​01/​mount-umount-examples/​)+== Mounting partitions ==
-Then built the package ​by executing ​the Slackbuild as follows:+use a chroot to build 32-bit packages on a 64-bit system. I needed to mount the partition which contained the SlackBuilds for which I wanted to make a package, As my Slackware host mount point is (in this example) at /​slackware_host_mount_point,​ I used the command:
-''​ARCH=i686 ./<my-package>.SlackBuild''​+<code bash>​mount ​-B /​slackware_host_mount_point /​chroot_folder 
-=== Exit and unmounting ===+(http://​www.thegeekstuff.com/​2013/​01/​mount-umount-examples/​) 
 +Then I built the package by executing the Slackbuild as follows:
-Finally I exited the chroot by pressing ​//Ctrl+d//, and unmounted the mount points I had mounted earlier.+<code bash> 
 +ARCH=i686 ./my_package.SlackBuild<​/code>
-== Links ==+=== Links ===
 http://​www.linuxquestions.org/​questions/​slackware-installation-40/​install-slackware-to-a-folder-using-chroot-825598/#​post4093831 http://​www.linuxquestions.org/​questions/​slackware-installation-40/​install-slackware-to-a-folder-using-chroot-825598/#​post4093831

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