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add the ability to umount automounted devices from within the chroot

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Talked to kmixter, and we felt that bindmounting the directory in
which the host os creates mount points for automounted external
devices is the cleanest solution to the inside/outside the chroot problem.
By doing this, image_to_usb can be run from inside the chroot without concern.
That means that (as far as I understand) the factory install flow can all be
done inside the chroot, as well as modding images for test and everything else.

Review URL: http://codereview.chromium.org/1991006
This commit is contained in:
Chris Masone 2010-05-11 09:20:00 -07:00
parent 19197c8ac8
commit 99c6a289f4
2 changed files with 17 additions and 1 deletions
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9
enter_chroot.sh
View File

@ -24,6 +24,8 @@ DEFINE_string build_number "" \
"The build-bot build number (when called by buildbot only)." "b"
DEFINE_string chrome_root "" \
"The root of your chrome browser source. Should contain a 'src' subdir."
DEFINE_string automount_dir "/media" \
"The directory in which your host OS creates mountpoints for external media."
DEFINE_boolean official_build $FLAGS_FALSE \
"Set CHROMEOS_OFFICIAL=1 for release builds."
@ -100,6 +102,13 @@ function setup_env {
die "Could not mount $MOUNTED_PATH"
fi
MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}${FLAGS_automount_dir}")"
if [ -z "$(mount | grep -F "on $MOUNTED_PATH ")" ]
then
sudo mount --bind "${FLAGS_automount_dir}" "$MOUNTED_PATH" || \
die "Could not mount $MOUNTED_PATH"
fi
MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}$CHROOT_TRUNK_DIR")"
if [ -z "$(mount | grep -F "on $MOUNTED_PATH ")" ]
then

9
image_to_usb.sh
View File

@ -232,7 +232,14 @@ then
echo "Attempting to unmount any mounts on the USB device..."
for i in $(mount | grep ^"${FLAGS_to}" | awk '{print $1}')
do
sudo umount "$i"
if sudo umount "$i" 2>&1 >/dev/null | grep "not found"; then
echo
echo "The device you have specified is already mounted at some point "
echo "that is not visible from inside the chroot. Please unmount the "
echo "device manually from outside the chroot and try again."
echo
exit 1
fi
done
sleep 3