BIOS-level driver to turn any hard disk into an equivalent liveCD/DVD
Unfortunately scripts that come with many distros to convert your cherished hard disk install into an equivalent live CD or DVD,
1. do not always succeed, 2. are often incomplete, and 3. take much too long For those of us who use live CDs and DVDs for security (I use them for secure shopping, with the hard disk disabled in the bios), and we often need to change the contents of the live CD or DVD, a drastic alternative should be possible: A low-level driver that sits between the bios and the operating system and puts all writes to the hard disk into a special memory area instead. So the contents of the disk stay the same, it's like a liveCD, but the operating system thinks it has written to the disk. Something like this already exists for windows, it's called Deepfreeze and is used by some internet cafes. But how can I do the same in linux? |
not sure about the deepfreeze thing
but as for the remastering apps,etc which ones have you tried and why did they not succeed? I use Remastersys(debian/ubuntu) & linux-live-6.3.0_x86/Linux-live-6.3.0x86_64 (ARCH/Slackware) the linux-live is a modified linux-live-scripts (modified by Ritchie at Slax forums for use with squashfs 4.0/4.1-cvs) and its made for the newer kernels, etc with aufs2 I also have modified both Ritchies lls and remasystersys scripts a bit to suit what I want I encourage you to try remastering again; its pretty easy and I can point you to many links with kernel patches,etc |
Thanks, I have used vectorlinux's remaster script, damnsmalllinux's, slitaz's, and some more I do not remember now, including manual instructions for debian and ubuntu-privacy-remix. It's probably what I've got on the hard disk that is the source of problems (vmware workstation, openvz, xen).
But my main problem is this: 3. they take much too long And you shouldn't use the computer during the remaster. And also if you do use it there's a lot of high compressing going on, which means the CPU is running at 100% so the user interface is made almost unusable on my machine, for hours. |
are you doing the remasters only in a vm, not off hdd?
mine take about 20min for debian/ubuntu, about 45min for slack/arch as they use squashfs-lzma my pc's are dedicated testbeds, I dont have windows |
Yes, I'm doing the remasters in vm's. How big is the live disk you're making in 20 mins?
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most of the stuff I make is around 700mb or less
the debian/ubuntu systems using remastersys take about 20-25 min to create a 700mb iso from a roughly 2.5gb install the arch/slackware ones take longer due to lzma compression thus with lzma the iso is much smaller but takes longer to build basically with reg 4.0 squashfs in debian/ubuntu you gotta keep the install to about 2-2.5gb but with the squashfs-lzma in the custom 2.6.35.4 kernels I compiled for arch/slackware I can use about 3.0+gb install to create 700mb iso. all of them are made on a amd athlonxp (K7) with 768mb ram yeah, the vm is your problem, thats why its taking so long I have kernel kits,etc available at my site for arch/slackware though I'm now updating everything to 2.6.35.4 for slackware and kernel26-pf for the arch builds and the debian uses the liquorix kernel while the meerkat builds use ubuntu's 2.6.35-19 kernel so you wanna make a security/penetration distro? from which base distro? |
Quote:
Recently discovered this little known gem called vectorlinux. It outperforms some 30 liveCD's I benchmarked, in terms of one particular video rendering test (HD flash videos on a VM). Many people have good things to say about this distro, it's as user-friendly as ubuntu but without the bloatware, running well in both new and old hardware. The last live disk I made was a 1.3 gig DVD, using the remaster script of vectorlinux std on a 4-5 gig install. Quote:
____ * This one has no standard disk access, it can only read truecrypt volumes. Also it has no networking at all. VMs would have to connect to the internet through the usb cable of an adsl router. |
Like a bare metal vm is what you want.
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I'm not sure what a bare metal vm might be. Bare-metal host o/s like ESX Server may be small but it still includes normal internet access and full hard disk access, I was hoping to have internet access in vm's only.
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