Debian LiveCD: Difference between revisions
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[[Category:OtherOS]] | |||
=Introduction= | =Introduction= | ||
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=Creating Initial System with debootstrap= | =Creating Initial System with debootstrap= | ||
< | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
apt-get install debootstrap | apt-get install debootstrap | ||
Line 11: | Line 14: | ||
debootstrap --arch powerpc squeeze /root/livecd http://ftp.us.debian.org/debian | debootstrap --arch powerpc squeeze /root/livecd http://ftp.us.debian.org/debian | ||
# Grab a beer and reverse some PS3 stuff in the meantime :) | |||
# Enter chroot environment | |||
mount -t proc none /root/livecd/proc | |||
mount --rbind /dev /root/livecd/dev | |||
LANG=C chroot /root/livecd /bin/bash | |||
export TERM=xterm-color | |||
echo "debian" > /etc/hostname | |||
dpkg-reconfigure tzdata | |||
# Configure network interfaces | |||
cat /etc/network/interfaces | |||
--- | |||
auto lo | |||
iface lo inet loopback | |||
allow-hotplug eth0 | |||
iface eth0 inet dhcp | |||
allow-hotplug wlan0 | |||
iface wlan0 inet dhcp | |||
wpa-ssid ssid | |||
wpa-psk psk | |||
-EOF- | |||
# Configure APT | |||
cat /etc/apt/sources.list | |||
--- | |||
deb http://ftp.us.debian.org/debian squeeze main | |||
deb-src http://ftp.us.debian.org/debian squeeze main | |||
deb http://security.debian.org squeeze/updates main | |||
deb-src http://security.debian.org squeeze/updates main | |||
-EOF- | |||
aptitude update | |||
aptitude install locales | |||
dpkg-reconfigure locales | |||
aptitude install console-data | |||
dpkg-reconfigure console-data | |||
tasksel install standard | |||
aptitude install binutils gcc make git vim openssh-server sudo wireless-tools wpasupplicant libssl-dev libncurses5-dev | |||
aptitude install gcc-spu g++-spu newlib-spu spu-tools | |||
aptitude install parted kpartx cryptsetup libreadline-dev libaio-dev libdevmapper-dev libudev-dev | |||
# Make SSH server start at boot so we could ssh to our LiveCD | |||
update-rc.d ssh defaults | |||
aptitude clean | |||
rm -f /etc/udev/rules.d/70-persistent-net.rules | |||
# exit chroot environment | |||
exit | |||
# Unmount dev and proc | |||
umount /root/livecd/dev/shm | |||
umount /root/livecd/dev/pts | |||
umount /root/livecd/dev | |||
umount /root/livecd/proc | |||
</syntaxhighlight>}} | |||
=Creating Root Filesystem= | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
cd /root/livecd | |||
mksquashfs * ../root.sfs | |||
</syntaxhighlight>}} | |||
=Modifying Root Filesystem= | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
cd /root | |||
unsquashfs root.sfs | |||
cd squashfs-root | |||
# Make your changes | |||
mksquashfs * ../root-changed.sfs | |||
</syntaxhighlight>}} | |||
=Linux 3 Kernel= | |||
* We need a Linux 3 kernel with overlayfs support so we could create a tmpfs over our read-only base filesystem. | |||
* Furthermore, we want to compile PS3 HDD driver as module because in this case we can easily change HDD region flags. | |||
See my GIT repos: | |||
* http://gitorious.ps3dev.net/ps3linux/kernel-configs | |||
* http://gitorious.ps3dev.net/ps3linux/kernel-patches-34 | |||
* http://gitorious.ps3dev.net/ps3linux/kernel-patches-35 | |||
* http://gitorious.ps3dev.net/ps3linux/kernel-patches-36 | |||
* http://gitorious.ps3dev.net/ps3linux/livecd | |||
=Initramfs= | |||
See my GIT repo: http://gitorious.ps3dev.net/ps3linux/livecd | |||
==BusyBox== | |||
* We need a couple of user-space applications to mount filesystems, load kernel modules and so on. | |||
* And make sure you compile BusyBox without any library dependencies. | |||
* I compiled my BusyBox executable on PS3 Linux but you could cross-compile it too but then you need a complete PowerPC toolchain with libc. | |||
<pre> | |||
http://busybox.net/downloads/busybox-1.20.1.tar.bz2 | |||
tar xvjf busybox-1.20.1.tar.bz2 | |||
cd busybox-1.20.1 | |||
make menuconfig | |||
make | |||
</pre> | </pre> | ||
==Creating Image== | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
# Populate initramfs | |||
mkdir initramfs | |||
cd initramfs | |||
mkdir -p bin dev etc lib/modules/3.6.4 mnt proc sbin sys usr/bin usr/sbin | |||
cp ~/busybox-1.20.1/busybox bin/ | |||
cd bin | |||
ln -sf busybox sh | |||
cd .. | |||
echo 'sda.* 0:6 0660' >> etc/mdev.conf | |||
echo 'sr[0-9] 0:6 0660 @ln -sf $MDEV cdrom' >> etc/mdev.conf | |||
cat >etc/modules <<EOF | |||
> fat | |||
> vfat | |||
> isofs | |||
> crc-ccitt | |||
> crc-itu-t | |||
> lzo_compress | |||
> udf | |||
> squashfs | |||
> overlayfs | |||
> ps3_gelic | |||
> ps3stor_lib | |||
> sg | |||
> ps3rom | |||
> usb-common | |||
> usbcore | |||
> ehci-hcd | |||
> ohci-hcd | |||
> usb-storage | |||
> EOF | |||
for mod in fat vfat isofs crc-ccitt crc-itu-t lzo_compress udf squashfs overlayfs \ | |||
ps3_gelic ps3stor_lib sg ps3rom usb-common usbcore ehci-hcd ohci-hcd usb-storage; do | |||
path=`find /home/glevand/linux-3.6.4-build/lib/modules/3.6.4 -name $mod.ko` | |||
cp $path lib/modules/3.6.4/ | |||
done | |||
# Create initramfs | |||
find . | cpio -H newc -o > ../initramfs.cpio | |||
cd .. | |||
cat initramfs.cpio | gzip > initramfs.cpio.gz | |||
# Make changes to initramfs | |||
gunzip initramfs.cpio.gz | |||
mkdir initramfs | |||
cd initramfs | |||
cpio -i -d -H newc --no-absolute-filenames < ../initramfs.cpio | |||
</syntaxhighlight>}} | |||
=Images= | |||
* vmlinux-3.6.4.xz: http://www.multiupload.nl/D0PYT6HGC0 (MD5 4b5fdb2995fde82e0f6817a7a86fca2c) | |||
* root.sfs: http://www.multiupload.nl/MWDSBR4OJZ (MD5 3ee12e2d351e0bbe1cd7818be23d8973) | |||
* Tools available on the root filesystem: gcc, spu-gcc, spuisofs, spuldrfs, ps3vuart-tools, ps3sed and all my other PS3 Linux drivers. Everything you need to compile and test various PS3 stuff. | |||
* In case someone still hasn't figured it out yet, password for root is root and password for glevand is glevand :) | |||
* I enabled DHCP on Ethernet. | |||
* You could use WLAN too but for that you have to modify the root filesystem and configure your SSID and PSK in /etc/network/interfaces. | |||
==USB== | |||
* Your USB drive should be formatted with FAT32 filesystem. | |||
* initramfs-usb.cpio.gz: http://www.multiupload.nl/Y084SCQBL3 (MD5 f94b6aec2e5fbbb26f7d466165071469) | |||
* Create '''debianlive''' directory on your USB drive. | |||
* Put vmlinux-3.6.4 (extract xz archive), initramfs.cpio.gz and root.sfs into this directory. | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
$ ls -l /mnt/usb/debianlive/ | |||
total 257696 | |||
-rwxr-xr-x 1 root root 6746154 Aug 18 17:44 initramfs.cpio.gz | |||
-rwxr-xr-x 1 root root 249835520 Aug 18 17:15 root.sfs | |||
-rwxr-xr-x 1 root root 7288832 Aug 18 17:31 vmlinux-3.6.4 | |||
$ ls -l /mnt/usb/ | |||
-rwxr-xr-x 1 root root 188 Aug 18 17:30 kboot.conf | |||
</syntaxhighlight>}} | |||
* And create kboot.conf in the root directory of your USB drive with this content: | |||
<pre> | |||
debianlive=/debianlive/vmlinux-3.6.4 initrd=/debianlive/initramfs.cpio.gz | |||
</pre> | |||
==CDROM== | |||
(files seem missing) | |||
* initramfs-cdrom.cpio.gz: http://www.multiupload.nl/SA9YK1HFK0 (MD5 f71f8667dc52540136f90a95d7111efc) | |||
* debianlive.iso: http://www.multiupload.nl/TW41UIVAGV (MD5 eeba4fa3428c5d687bada3fd975ea9dd) | |||
* https://www.sendspace.com/file/2negnt (added missing link to debianlive) | |||
* https://mega.nz/#!k1sTXI4a!ANmRDBVYmEdaToauoePNSKvoDl7GXGw0ORNN9ZM0Tfo | |||
* https://www.sendspace.com/file/f8wnpe | |||
* http://uploaded.net/file/vdxmzopu | |||
<!-- https://www.sendspace.com/file/a3bsty --> | |||
{{Keyboard|content=<syntaxhighlight lang="bash"> | |||
mkdir -p iso/debianlive | |||
cp root.sfs initramfs.cpio.gz vmlinux-3.6.4 iso/debianlive | |||
echo "debianlive=/debianlive/vmlinux-3.6.4 initrd=/debianlive/initramfs.cpio.gz" > iso/kboot.conf | |||
cd iso | |||
mkisofs -R -J -l -o ../debianlive.iso . | |||
cd .. | |||
sudo cdrecord -v dev=/dev/sr0 blank=fast | |||
sudo cdrecord -v dev=/dev/sr0 debianlive.iso | |||
</syntaxhighlight>}} | |||
=Links= | =Links= | ||
* http://securityfocus.eu/?p=149 | |||
{{Linux}}<noinclude>[[Category:Main]]</noinclude> |
Revision as of 18:00, 2 December 2017
Introduction
- Sometimes we need to boot Linux without HDD e.g. if you want to experiment with HDD encryption, enable/disable it without causing damage to your data. For such cases we need a LiveCD which doesn't mount HDD at boot.
Creating Initial System with debootstrap
apt-get install debootstrap mkdir livecd debootstrap --arch powerpc squeeze /root/livecd http://ftp.us.debian.org/debian # Grab a beer and reverse some PS3 stuff in the meantime :) # Enter chroot environment mount -t proc none /root/livecd/proc mount --rbind /dev /root/livecd/dev LANG=C chroot /root/livecd /bin/bash export TERM=xterm-color echo "debian" > /etc/hostname dpkg-reconfigure tzdata # Configure network interfaces cat /etc/network/interfaces --- auto lo iface lo inet loopback allow-hotplug eth0 iface eth0 inet dhcp allow-hotplug wlan0 iface wlan0 inet dhcp wpa-ssid ssid wpa-psk psk -EOF- # Configure APT cat /etc/apt/sources.list --- deb http://ftp.us.debian.org/debian squeeze main deb-src http://ftp.us.debian.org/debian squeeze main deb http://security.debian.org squeeze/updates main deb-src http://security.debian.org squeeze/updates main -EOF- aptitude update aptitude install locales dpkg-reconfigure locales aptitude install console-data dpkg-reconfigure console-data tasksel install standard aptitude install binutils gcc make git vim openssh-server sudo wireless-tools wpasupplicant libssl-dev libncurses5-dev aptitude install gcc-spu g++-spu newlib-spu spu-tools aptitude install parted kpartx cryptsetup libreadline-dev libaio-dev libdevmapper-dev libudev-dev # Make SSH server start at boot so we could ssh to our LiveCD update-rc.d ssh defaults aptitude clean rm -f /etc/udev/rules.d/70-persistent-net.rules # exit chroot environment exit # Unmount dev and proc umount /root/livecd/dev/shm umount /root/livecd/dev/pts umount /root/livecd/dev umount /root/livecd/proc
Creating Root Filesystem
cd /root/livecd mksquashfs * ../root.sfs
Modifying Root Filesystem
cd /root unsquashfs root.sfs cd squashfs-root # Make your changes mksquashfs * ../root-changed.sfs
Linux 3 Kernel
- We need a Linux 3 kernel with overlayfs support so we could create a tmpfs over our read-only base filesystem.
- Furthermore, we want to compile PS3 HDD driver as module because in this case we can easily change HDD region flags.
See my GIT repos:
- http://gitorious.ps3dev.net/ps3linux/kernel-configs
- http://gitorious.ps3dev.net/ps3linux/kernel-patches-34
- http://gitorious.ps3dev.net/ps3linux/kernel-patches-35
- http://gitorious.ps3dev.net/ps3linux/kernel-patches-36
- http://gitorious.ps3dev.net/ps3linux/livecd
Initramfs
See my GIT repo: http://gitorious.ps3dev.net/ps3linux/livecd
BusyBox
- We need a couple of user-space applications to mount filesystems, load kernel modules and so on.
- And make sure you compile BusyBox without any library dependencies.
- I compiled my BusyBox executable on PS3 Linux but you could cross-compile it too but then you need a complete PowerPC toolchain with libc.
http://busybox.net/downloads/busybox-1.20.1.tar.bz2 tar xvjf busybox-1.20.1.tar.bz2 cd busybox-1.20.1 make menuconfig make
Creating Image
# Populate initramfs mkdir initramfs cd initramfs mkdir -p bin dev etc lib/modules/3.6.4 mnt proc sbin sys usr/bin usr/sbin cp ~/busybox-1.20.1/busybox bin/ cd bin ln -sf busybox sh cd .. echo 'sda.* 0:6 0660' >> etc/mdev.conf echo 'sr[0-9] 0:6 0660 @ln -sf $MDEV cdrom' >> etc/mdev.conf cat >etc/modules <<EOF > fat > vfat > isofs > crc-ccitt > crc-itu-t > lzo_compress > udf > squashfs > overlayfs > ps3_gelic > ps3stor_lib > sg > ps3rom > usb-common > usbcore > ehci-hcd > ohci-hcd > usb-storage > EOF for mod in fat vfat isofs crc-ccitt crc-itu-t lzo_compress udf squashfs overlayfs \ ps3_gelic ps3stor_lib sg ps3rom usb-common usbcore ehci-hcd ohci-hcd usb-storage; do path=`find /home/glevand/linux-3.6.4-build/lib/modules/3.6.4 -name $mod.ko` cp $path lib/modules/3.6.4/ done # Create initramfs find . | cpio -H newc -o > ../initramfs.cpio cd .. cat initramfs.cpio | gzip > initramfs.cpio.gz # Make changes to initramfs gunzip initramfs.cpio.gz mkdir initramfs cd initramfs cpio -i -d -H newc --no-absolute-filenames < ../initramfs.cpio
Images
- vmlinux-3.6.4.xz: http://www.multiupload.nl/D0PYT6HGC0 (MD5 4b5fdb2995fde82e0f6817a7a86fca2c)
- root.sfs: http://www.multiupload.nl/MWDSBR4OJZ (MD5 3ee12e2d351e0bbe1cd7818be23d8973)
- Tools available on the root filesystem: gcc, spu-gcc, spuisofs, spuldrfs, ps3vuart-tools, ps3sed and all my other PS3 Linux drivers. Everything you need to compile and test various PS3 stuff.
- In case someone still hasn't figured it out yet, password for root is root and password for glevand is glevand :)
- I enabled DHCP on Ethernet.
- You could use WLAN too but for that you have to modify the root filesystem and configure your SSID and PSK in /etc/network/interfaces.
USB
- Your USB drive should be formatted with FAT32 filesystem.
- initramfs-usb.cpio.gz: http://www.multiupload.nl/Y084SCQBL3 (MD5 f94b6aec2e5fbbb26f7d466165071469)
- Create debianlive directory on your USB drive.
- Put vmlinux-3.6.4 (extract xz archive), initramfs.cpio.gz and root.sfs into this directory.
$ ls -l /mnt/usb/debianlive/ total 257696 -rwxr-xr-x 1 root root 6746154 Aug 18 17:44 initramfs.cpio.gz -rwxr-xr-x 1 root root 249835520 Aug 18 17:15 root.sfs -rwxr-xr-x 1 root root 7288832 Aug 18 17:31 vmlinux-3.6.4 $ ls -l /mnt/usb/ -rwxr-xr-x 1 root root 188 Aug 18 17:30 kboot.conf
- And create kboot.conf in the root directory of your USB drive with this content:
debianlive=/debianlive/vmlinux-3.6.4 initrd=/debianlive/initramfs.cpio.gz
CDROM
(files seem missing)
- initramfs-cdrom.cpio.gz: http://www.multiupload.nl/SA9YK1HFK0 (MD5 f71f8667dc52540136f90a95d7111efc)
- debianlive.iso: http://www.multiupload.nl/TW41UIVAGV (MD5 eeba4fa3428c5d687bada3fd975ea9dd)
- https://www.sendspace.com/file/2negnt (added missing link to debianlive)
- https://mega.nz/#!k1sTXI4a!ANmRDBVYmEdaToauoePNSKvoDl7GXGw0ORNN9ZM0Tfo
- https://www.sendspace.com/file/f8wnpe
- http://uploaded.net/file/vdxmzopu
mkdir -p iso/debianlive cp root.sfs initramfs.cpio.gz vmlinux-3.6.4 iso/debianlive echo "debianlive=/debianlive/vmlinux-3.6.4 initrd=/debianlive/initramfs.cpio.gz" > iso/kboot.conf cd iso mkisofs -R -J -l -o ../debianlive.iso . cd .. sudo cdrecord -v dev=/dev/sr0 blank=fast sudo cdrecord -v dev=/dev/sr0 debianlive.iso
Links