new debian-live, /live/cow and /lib/live/mount/overlay
Hi everyone,
I have been a happy debian-live user for a few years and with the last
release I was wondering how one is supposed to deal with the new overlay
mechanism.
I'm using both debian-live for nfsboot of thin clients, and for running
routers in ramdisk with flash storage.
The case that interest me here is the router with flash storage. I have
about 6 dozens of them running debian-live on squeeze. On those squeeze
setups, when I wanted to commit a change on the flash, I just mounted rw
the /live/image flash device, run a "find /live/cow" to look at which
file I changed and just move them over from cow to /live/image.
Now on wheezy I am wondering where is gone my /live/cow... I guess I am
not doing things the proper way with the new mechanism, but google
didn't helped me on that one...
Thanks for you input and for that great project (I couldn't go back at
preparing live system by hand!)
Cheers,
Denis
Here is my kernel args :
# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-486 root=/dev/sda1 ro console=tty0
console=ttyS0,38400n1 fb=false reboot=bios boot=live plainroot
live-noconfig noprompt ip=frommedia
And here is my /proc/mounts
# cat /proc/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=10240k,nr_inodes=30397,mode=755 0 0
devpts /dev/pts devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=25500k,mode=755 0 0
/dev/sda1 /lib/live/mount/rootfs/filesystem ext4
ro,noatime,user_xattr,acl,barrier=1,data=ordered 0 0
/dev/sda1 /lib/live/mount/medium ext4
rw,noatime,user_xattr,acl,barrier=1,data=ordered 0 0
tmpfs /lib/live/mount/overlay tmpfs rw,relatime 0 0
tmpfs /lib/live/mount/overlay tmpfs rw,noatime,mode=755 0 0
aufs / aufs rw,noatime,si=51910e85,noxino 0 0
tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
tmpfs /run/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=50980k 0 0
--
Denis Cardon
Tranquil IT Systems
Les Espaces Jules Verne, bâtiment A
12 avenue Jules Verne
44230 Saint Sébastien sur Loire
tel : +33 (0) 2.40.97.57.55
http://www.tranquil-it-systems.fr
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