Check available disk space before starting migration. (#136)

* Add disk space check
This commit is contained in:
Peter Ajamian 2021-12-19 01:53:55 +13:00 committed by GitHub
parent da2de96c9c
commit a208a1ce0b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -172,6 +172,14 @@ stream_always_replace=(
kernel-\*
)
# Directory to required space in MiB
declare -A dir_space_map
dir_space_map=(
[/usr]=250
[/var]=1536
[/boot]=50
)
unset CDPATH
exit_message() {
@ -251,6 +259,38 @@ pre_check () {
'Migration from Uyuni/SUSE Manager-modified systems is not supported by '\
'migrate2rocky. See the README file for details.'
fi
# Get available space to compare to requirements.
# If the stock kernel is not installed we don't require space in /boot
if ! rpm -q --quiet kernel; then
dir_space_map[/boot]=0
fi
local -a errs dirs=("${!dir_space_map[@]}")
local dir mount avail i=0
local -A mount_avail_map dir_mount_map mount_space_map
while read -r mount avail; do
if [[ $mount == 'Filesystem' ]]; then
continue
fi
dir=${dirs[$((i++))]}
dir_mount_map[$dir]=$mount
mount_avail_map[$mount]=${avail%M}
(( mount_space_map[$mount]+=dir_space_map[$dir] ))
done < <(df -BM --output=source,avail "${dirs[@]}")
for mount in "${!mount_space_map[@]}"; do
(( avail = mount_avail_map[$mount]*95/100 ))
if (( avail < mount_space_map[$mount] )); then
errs+=("Not enough space in $mount, ${mount_space_map[$mount]}M required, ${avail}M available.")
fi
done
if (( ${#errs[@]} )); then
IFS=$'\n'
exit_message "${errs[*]}"
fi
}
# All of the binaries used by this script are available in a EL8 minimal install
@ -268,7 +308,7 @@ bin_check() {
local -a missing bins
bins=(
rpm dnf awk column tee tput mkdir cat arch sort uniq rmdir
rpm dnf awk column tee tput mkdir cat arch sort uniq rmdir df
rm head curl sha512sum mktemp systemd-detect-virt sed grep
)
if [[ $update_efi ]]; then