Tim Tassonis wrote:
Hi Bruce
On 04/18/16 22:24, Bruce Dubbs wrote:
I've been thinking thinking about a new Live CD/Rescue CD based on LFS.
It would be much less ambitious than the old one that included an X
implementation.
What I had in mind is a base LFS system with the following:
dhcpcd
wget
ssh/ssl
which
links
screen
mc
gptfdisk
gpm
LFS HTML
LFS sources tarball
What else? Other possibilities:
unzip
subversion
git
wireless-tools
wpa-supplicant
-- Bruce
I have created such a disk, mainly as a rescue disk.
I also added:
- bind, the client parts for nslookup
- net-tools, as I'm just more used to them
- llvm, mdadm, good if used on a system where lvm/RAID is used
- cpio
- pciutils
- parted
In order to create the cd, I also needed:
- libburn, libisoburn, libisofs
- squashfs
- syslinux/isolinux
My approach was to create a cd with isofs that runs a kernel with an
initramfs. The initramfs stuff is pretty identical to the blfs one.
Also on the CD, there is a squashfs file, containing all the stuff you
want on your live system.
In the initramfs's init, I mount the squashfs combined with an overlayfs,
to get a writable root partition, with the writable parts in a tmpfs. This
looks like this:
mknod /dev/loop0 b 7 0
mkdir /.root
mkdir /mnt
mkdir /mnt/gaia-ro
mkdir /mnt/gaia-rw
mount -t tmpfs tmpfs /mnt/gaia-rw
mkdir /mnt/gaia-rw/work
mkdir /mnt/gaia-rw/upper
mkdir /mnt/gaia
mount /gaiarule.sqf /mnt/gaia-ro -t squashfs -o loop
mount -t overlay overlay
-olowerdir=/mnt/gaia-ro,upperdir=/mnt/gaia-rw/upper,workdir=/mnt/gaia-rw/work
/.root
exec switch_root /.root "$init" "$@"
If you are interested, I can send you my scripts to do all this, but maybe
you already have a better solution for all the booting/root disk stuff in
place.
I've dropped the ball on this and am working on other things right now.
One issue I came across in my earlier review was the problem of writable
partitions from a CD/DVD. It just seems like a kludge. The old iso is
not capable of being loaded on a thumb drive without some modifications
and I haven't figured that out yet.
I then thought how the CD/DVD paradigm is so last decade. I think it
would be much easier to produce an iso that targets a thumb drive only.
Users could then add packages as they see fit.
Comments?
-- Bruce
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