Skip to content

Support for updating tmpfs size according to Image size #7484

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
qiluo-msft merged 4 commits into from
Jun 21, 2021
Merged

Support for updating tmpfs size according to Image size #7484

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
33bc329
Support for updating tmpfs size according to Image size
lkunjumon Apr 29, 2021
25d32a1
Add support to get actual size of compressed image.
lkunjumon May 17, 2021
3c6c399
Updating tmpfs size according to Image size
lkunjumon May 21, 2021
53e8c97
Updated review comments and added extra 32MB free space for mount size.
lkunjumon Jun 16, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions installer/sharch_body.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -25,13 +25,23 @@ fi

echo " OK."

image_size_in_kb=$((($(sed -e '1,/^exit_marker$/d' "$0" | tar --to-stdout -xf - | wc -c) + 1023 ) / 1024))
# Untar and launch install script in a tmpfs
cur_wd=$(pwd)
export cur_wd
archive_path=$(realpath "$0")
tmp_dir=$(mktemp -d)
if [ "$(id -u)" = "0" ] ; then
mount -t tmpfs tmpfs-installer $tmp_dir || exit 1
mount_size_in_kb=$(df $tmp_dir | tail -1 | tr -s ' ' | cut -d' ' -f4)
#checking extra 100KB space in tmp_dir, after image extraction
padding=102400
if [ "$mount_size_in_kb" -le "$((image_size_in_kb + padding))" ]; then
image_size_in_mb=$(((image_size_in_kb + 1023) / 1024))
#Adding extra 32MB free space for image extraction.
mount_size_in_mb=$((((image_size_in_mb + 31) / 32) * 32))
mount -o remount,size="${mount_size_in_mb}M" -t tmpfs tmpfs-installer $tmp_dir || exit 1
fi
fi
cd $tmp_dir
echo -n "Preparing image archive ..."
Expand Down