Bug#715186: live-boot: Fails when looo-mounted ISO on same partition as persistence file
Package: live-boot
Version: 3.0.1-1
Severity: important
Tags: upstream
Dear Maintainer,
persistence apparently failes when the persistence file is located on same ext4 partition as is the live ISO which is booted with GRUB2.
Allowing to put both ISO files and persistence files onto the same partition would be a tremendous enhancement, since it would allow one to put many OSes and their persistent state on a system without having to repartition.
# I boot from an ISO that is loop-mounted with GRUB2 like this:
root@debian:/home/user# cat /lib/live/mount/findiso/boot/grub/grub.cfg
# (...)
menuentry "binary.hybrid.iso" {
insmod ext2
iso_path="/boot/binary.hybrid.iso"
export iso_path
args="findiso=${iso_path} live-config.keyboard-layouts=de live-config.locales=de_DE.UTF-8 live-config.timezone=Europe/Berlin boot=live config quiet splash"
export args
loopback loop ${iso_path}
linux (loop)/live/vmlinuz $args
initrd (loop)/live/initrd.img
}
# (...)
# When I boot without the "persistence" boot option:
# ==================================================
root@debian:/home/user# cat /etc/*release
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)"
NAME="Debian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
ID=debian
ANSI_COLOR="1;31"
HOME_URL="http://www.debian.org/";
SUPPORT_URL="http://www.debian.org/support/";
BUG_REPORT_URL="http://bugs.debian.org/";
root@debian:/home/user# cat /lib/live/mount/medium/.disk/info
Debian GNU/Linux 7.0.0 "Wheezy" - Official Snapshot i386 LIVE Binary 20130705-09:20
root@debian:/home/user# dpkg-query -W -f '${status} ${package} ${version}\n' | sed -n 's/^install ok installed //p' | grep live
live-boot 3.0.1-1
live-boot-doc 3.0.1-1
live-boot-initramfs-tools 3.0.1-1
live-config 3.0.23-1
live-config-doc 3.0.23-1
live-config-sysvinit 3.0.23-1
live-manual 1:3.0.2-1
live-manual-epub 1:3.0.2-1
live-manual-html 1:3.0.2-1
live-manual-odf 1:3.0.2-1
live-manual-pdf 1:3.0.2-1
live-manual-txt 1:3.0.2-1
live-tools 3.0.20-1
# This is my persistence file. It is located in the root directory of the ext4 partition
root@debian:/home/user# ls /lib/live/mount/findiso/persistence
/lib/live/mount/findiso/persistence
root@debian:/home/user# mount /lib/live/mount/findiso/persistence /mnt/ -oloop,ro
root@debian:/home/user# cat /mnt/persistence.conf
/etc
/root/persistent
# During boot, I get an error
root@debian:/home/user# cat /var/log/live/boot.log
umount: can't umount /live/overlay: Device or resource busy
# This is what is mounted
root@debian:/home/user# mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,relatime,size=10240k,nr_inodes=215958,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=350408k,mode=755)
/dev/sda1 on /lib/live/mount/findiso type ext4 (ro,noatime,user_xattr,barrier=1,data=ordered)
/dev/loop0 on /lib/live/mount/medium type iso9660 (ro,noatime)
/dev/loop1 on /lib/live/mount/rootfs/filesystem.squashfs type squashfs (ro,noatime)
tmpfs on /lib/live/mount/overlay type tmpfs (rw,relatime)
tmpfs on /lib/live/mount/overlay type tmpfs (rw,noatime,mode=755)
aufs on / type aufs (rw,relatime,si=6b210e2a,noxino)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=700800k)
# When I boot with the "persistence" boot option:
# ==================================================
root@debian:/home/user# ls /lib/live/mount/findiso/persistence
ls: cannot access /lib/live/mount/findiso/persistence: No such file or directory
root@debian:/home/user# cat /var/log/live/boot.log
mount: mounting /dev/sda2 on /live/persistence/sda2 failed: No such device
mount: mounting /dev/sda5 on /live/persistence/sda5 failed: No such device
mount: mounting /dev/sda on /live/persistence/sda failed: No such device
mount: mounting /dev/sr0 on /live/persistence/sr0 failed: No such device
cp: can't create directory '/live/persistence/loop2/etc': Read-only file system
mount: mounting /live/persistence/loop2/etc on /root/etc failed: No such file or directory
mkdir: can't create directory '/live/persistence/loop2/root': Read-only file system
cp: can't create directory '/live/persistence/loop2/root/persistent': No such file or directory
mount: mounting /live/persistence/loop2/root/persistent on /root/root/persistent failed: No such file or directory
umount: can't umount /live/overlay: Device or resource busy
root@debian:/home/user# mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,relatime,size=10240k,nr_inodes=215958,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=350408k,mode=755)
/dev/sda1 on /lib/live/mount/persistence/sda1 type ext4 (ro,noatime,user_xattr,barrier=1,data=ordered)
/dev/loop0 on /lib/live/mount/medium type iso9660 (ro,noatime)
/dev/loop1 on /lib/live/mount/rootfs/filesystem.squashfs type squashfs (ro,noatime)
tmpfs on /lib/live/mount/overlay type tmpfs (rw,relatime)
tmpfs on /lib/live/mount/overlay type tmpfs (rw,noatime,mode=755)
aufs on / type aufs (rw,relatime,si=c3e74db7,noxino)
/dev/loop2 on /lib/live/mount/persistence/loop2 type ext4 (ro,noatime,user_xattr,barrier=1,data=ordered)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=700800k)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
-- Package-specific info:
-- System Information:
Debian Release: 7.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 3.2.0-4-486
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages live-boot depends on:
ii live-boot-initramfs-tools [live-boot-backend] 3.0.1-1
Versions of packages live-boot recommends:
ii live-boot-doc 3.0.1-1
ii live-tools 3.0.20-1
ii rsync 3.0.9-4
ii uuid-runtime 2.20.1-5.3
Versions of packages live-boot suggests:
pn cryptsetup <none>
pn curlftpfs <none>
pn httpfs2 <none>
pn unionfs-fuse <none>
ii wget 1.13.4-3
-- no debconf information
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