Re: [arch-releng] Call for test: archiso with dm-snapshot

14 Jun 2011


      On 06/14/2011 05:39 AM, Thomas Bächler wrote:
...
Am 14.06.2011 06:51, schrieb Gerardo Exequiel Pozzi:
...
While in the union mount approach, if "tmpfs" (rw_branch) is full a
ENOSPC is reported, and nothing more. In this case, if in the device
where the "cow" file reside is full, and you write to the dev-mapper,
the system will crash, no ENOSPC is reported. OK?
When a snapshot device becomes full, it "disappears". This means that
reading and writing will fail (probably with EACCESS). As reading fails,
your system crashes.
...
* Directory scheme or core-iso.
??? arch
?   ??? aitab
?   ??? any
?   ?   ??? core-any-pkgs.sfs
?   ?   ??? usr-share.fs.sfs
?   ??? boot
?   ?   ??? i686
?   ?   ?   ??? archiso.img
?   ?   ?   ??? vmlinuz26
?   ?   ??? memtest
?   ?   ??? memtest.COPYING
?   ??? i686
?       ??? core-pkgs.sfs
?       ??? lib-modules.fs.sfs
?       ??? root-image.fs.sfs
??? syslinux
     ??? boot.cat
     ??? *.com
     ??? *.c32
     ??? *.0
     ??? hdt
     ?   ??? modalias.gz
     ?   ??? pciids.gz
     ??? isolinux.bin
     ??? memdisk
     ??? splash.png
     ??? syslinux.cfg
I sent you incomplete work to move everything to /arch once. I want to
include this, but never had the time to finish it.
Basically, everything is moved to /arch/boot/syslinux instead of
/syslinux. The /syslinux folder would only contain boot.cat,
isolinux.bin and a small syslinux.cfg, that only launches
CONFIG /arch/boot/syslinux/syslinux.cfg
APPEND /arch/boot/syslinux/
This 'cd's to /arch/boot/syslinux. This will make it easier to produce
scripts that create a live USB by copying /arch to a flash drive, as
/arch is self-contained and no config files need to be adjusted. Just
copy /arch, adjust archisolabel and install syslinux into
/arch/boot/syslinux/.
If you have any more time for this, I would appreciate if you would take
the work out of my hands.
I know about it, but if you insist I will do it, no problem.

I personally dislike the idea, since it is currently divided in a 
certain logical form(ArchLinux in one place, Syslinux in another), and 
serves the time to put several "Linux's" on the same storage medium, 
sharing the same bootloader

-- 
Gerardo Exequiel Pozzi
\cos^2\alpha + \sin^2\alpha = 1