Editing Debian LiveCD
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[[Category: | [[Category:Linux]] | ||
=Introduction= | =Introduction= | ||
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=Creating Initial System with debootstrap= | =Creating Initial System with debootstrap= | ||
<pre> | |||
apt-get install debootstrap | apt-get install debootstrap | ||
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tasksel install standard | tasksel install standard | ||
aptitude install binutils gcc make git vim openssh-server sudo | aptitude install binutils gcc make git vim openssh-server sudo wpasupplicant libssl-dev | ||
aptitude install gcc-spu g++-spu newlib-spu spu-tools | aptitude install gcc-spu g++-spu newlib-spu spu-tools | ||
# Make SSH server start at boot so we could ssh to our LiveCD | # Make SSH server start at boot so we could ssh to our LiveCD | ||
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aptitude clean | aptitude clean | ||
</pre> | |||
=Creating Root Filesystem= | |||
<pre> | |||
< | |||
cd /root/livecd | cd /root/livecd | ||
mksquashfs * ../root.sfs | mksquashfs * ../root.sfs | ||
</ | </pre> | ||
=Modifying Root Filesystem= | =Modifying Root Filesystem= | ||
<pre> | |||
cd /root | cd /root | ||
unsquashfs root.sfs | unsquashfs root.sfs | ||
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mksquashfs * ../root-changed.sfs | mksquashfs * ../root-changed.sfs | ||
</ | </pre> | ||
=Linux 3 Kernel= | =Linux 3 Kernel= | ||
* We need a Linux 3 kernel with overlayfs support so we could create a tmpfs over our read-only base filesystem. | * We need a Linux 3 kernel with overlayfs support so we could create a tmpfs over our read-only base filesystem. | ||
* At the moment overlayfs is not supported on Linux 3.5 so it leaves us with Linux 3.4 which doesn't really matter because all my Linux 3 drivers are supported on Linux 3.4 just fine. | |||
* Furthermore, we want to compile PS3 HDD driver as module because in this case we can easily change HDD region flags. | * Furthermore, we want to compile PS3 HDD driver as module because in this case we can easily change HDD region flags. | ||
=Initramfs= | =Initramfs= | ||
<pre> | <pre> | ||
# Populate initramfs | # Populate initramfs | ||
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mkdir initramfs | mkdir initramfs | ||
cd initramfs | cd initramfs | ||
mkdir -p bin dev etc lib/modules/3. | mkdir -p bin dev etc lib/modules/3.4.9 mnt proc sbin sys usr | ||
for mod in fat vfat isofs crc-ccitt crc-itu-t lzo_compress udf squashfs overlayfs \ | 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 | ps3_gelic ps3stor_lib sg ps3rom usb-common usbcore ehci-hcd ohci-hcd usb-storage; do | ||
path=`find /home/glevand/linux-3. | path=`find /home/glevand/linux-3.4.9-build/lib/modules/3.4.9 -name $mod.ko` | ||
cp $path lib/modules/3. | cp $path lib/modules/3.4.9/ | ||
done | done | ||
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cd .. | cd .. | ||
cat initramfs.cpio | gzip > initramfs.cpio.gz | cat initramfs.cpio | gzip > initramfs.cpio.gz | ||
</pre> | |||
=Images= | =Images= | ||
* vmlinux-3. | * vmlinux-3.4.9.xz: http://www.multiupload.nl/9C1XVAB3RU (MD5 c15903c28b4eaff3524f3c32f491e25e) | ||
* root.sfs: http://www.multiupload.nl/ | * root.sfs: http://www.multiupload.nl/NERXNME3JJ (MD5 e2ed20d27092105961507de5d7b49ed3) | ||
* 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. | * 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. | ||
==USB== | ==USB== | ||
* initramfs.cpio.gz: http://www.multiupload.nl/KROXJ799N6 (MD5 8da82022b1c2541dc419619e710a0a3f) | |||
* initramfs | |||
* Create '''debianlive''' directory on your USB drive. | * Create '''debianlive''' directory on your USB drive. | ||
* Put vmlinux-3. | * Put vmlinux-3.4.9 (extract xz archive), initramfs.cpio.gz and root.sfs into this directory. | ||
<pre> | |||
$ ls -l /mnt/usb/debianlive/ | $ ls -l /mnt/usb/debianlive/ | ||
total 257696 | total 257696 | ||
-rwxr-xr-x 1 root root 6746154 Aug 18 17:44 initramfs.cpio.gz | -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 249835520 Aug 18 17:15 root.sfs | ||
-rwxr-xr-x 1 root root 7288832 Aug 18 17:31 vmlinux-3. | -rwxr-xr-x 1 root root 7288832 Aug 18 17:31 vmlinux-3.4.9 | ||
$ ls -l /mnt/usb/ | $ ls -l /mnt/usb/ | ||
-rwxr-xr-x 1 root root 188 Aug 18 17:30 kboot.conf | -rwxr-xr-x 1 root root 188 Aug 18 17:30 kboot.conf | ||
</ | </pre> | ||
* And create kboot.conf in the root directory of your USB drive with this content: | * And create kboot.conf in the root directory of your USB drive with this content: | ||
<pre> | <pre> | ||
debianlive=/debianlive/vmlinux-3. | debianlive=/debianlive/vmlinux-3.4.9 initrd=/debianlive/initramfs.cpio.gz | ||
</pre> | </pre> | ||
==CDROM== | ==CDROM== | ||
<pre> | |||
< | |||
mkdir -p iso/debianlive | mkdir -p iso/debianlive | ||
cp root.sfs initramfs.cpio.gz vmlinux-3. | cp root.sfs initramfs.cpio.gz vmlinux-3.4.9 iso/debianlive | ||
echo "debianlive=/debianlive/vmlinux-3. | echo "debianlive=/debianlive/vmlinux-3.4.9 initrd=/debianlive/initramfs.cpio.gz" > iso/kboot.conf | ||
cd iso | cd iso | ||
mkisofs -R -J -l -o ../debianlive.iso . | mkisofs -R -J -l -o ../debianlive.iso . | ||
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sudo cdrecord -v dev=/dev/sr0 blank=fast | sudo cdrecord -v dev=/dev/sr0 blank=fast | ||
sudo cdrecord -v dev=/dev/sr0 debianlive.iso | sudo cdrecord -v dev=/dev/sr0 debianlive.iso | ||
</ | </pre> | ||
=Links= | =Links= | ||
* http://securityfocus.eu/?p=149 | * http://securityfocus.eu/?p=149 | ||