Shulou(Shulou.com)05/31 Report--

This article introduces the relevant knowledge of "how to use the Ubuntu DIY operating system". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Export WORK=~/diy_ubuntu

Mkdir-p $WORK

Then we hang the CD image file to / mntsudo mount-t iso9660-o loop dapper-live-i386.iso / mnt cd $WORK

Ubuntu DIY copy files CD-ROM files

Mkdir Ubuntu-livecd

Cp-a / mnt/. Ubuntu-livecd

Chmod-RUBUBW ubuntu-livecd

Sudo umount / mnt

Since the CD contains a lot of free software under windows, let's delete unnecessary files. Of course you can keep it. Rm-rf $WORK/ubuntu-livecd/programs

Hang up the compressed files on the CD so that you can see a complete linux operating system directory in the $WORK/old directory later. Mkdir $WORK/old

Sudo mount-t squashfs-o loop,ro $WORK/ubuntu-livecd/casper/filesystem.squashfs $WORK/old

We set up a 2GB-sized file system, then format the file as a device file, and the system gives a warning, ignore it, and choose yes.

Sudo dd if=/dev/zero of=$WORK/ubuntu-fs.ext2 bs=1M count=2147

Sudo mke2fs $WORK/ubuntu-fs.ext2

Then we hang up the empty file system.

Mkdir $WORK/new

Sudo mount-o loop $WORK/ubuntu-fs.ext2 $WORK/new

Copy files from the linux Ubuntu DIY operating system. Since the linux we got in advance is compressed, we decompressed it. Sudo cp-a $WORK/old/. $WORK/new

Of course, $WORK/old is of no use now. Scrap it sudo umount $WORK/old

Let's first get into the Ubuntu DIY operating system we just got.

Sudo cp / etc/resolv.conf $WORK/new/etc/

Sudo mount-t proc-o bind / proc $WORK/new/proc

Sudo chroot $WORK/new / bin/bash

Now you are in the system, shouting linux for human beings, refining ubuntu, and doing whatever you want.

# vi / etc/apt/sources.list # choose the source that suits you

# apt-get update

# apt-get dist-upgrade

# apt-get install the software you want to install

# apt-get clean

More configuration of Ubuntu DIY

* leave your operating system

# exit

Sudo umount $WORK/new/proc

Sudo rm $WORK/new/etc/resolv.conf

Now you're back to your original state.

Reorganize the manifest.

Sudo chroot $WORK/new dpkg-query-W-- showformat='$ {Package} ${Version}\ n'> $WORK/ubuntu-livecd/casper/filesystem.manifest

Then do a "disk cleanup".

Sudo dd if=/dev/zero of=$WORK/new/dummyfile

Sudo rm $WORK/new/dummyfile

Ubuntu DIY recompression system

Sudo rm $WORK/ubuntu-livecd/casper/filesystem.squashfs

Cd $WORK/new

Sudo mksquashfs. $WORK/ubuntu-livecd/casper/filesystem.squashfs

All your changes have been saved. Now get rid of $WORK/new.

Cd $WORK

Sudo umount $WORK/new

Recalculate the md5 of the file

Cd $WORK/ubuntu-livecd

Sudo find. -type f-print0 | xargs-0 md5sum | sudo tee md5sum.txt

Ubuntu DIY set up a CD mirror, the command is very long, put up with it.

Cd $WORK

Sudo mkisofs-o ubuntu-new.iso-b isolinux/isolinux.bin-c isolinux/boot.cat-no-emul-boot-boot-load-size 4-boot-info-table-r-V "My Cool Ubuntu Live CD"-cache-inodes-J-l ubuntu-livecd

Then you can burn the CD with iso.

This is the end of the content of "how to use the Ubuntu DIY operating system". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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