[Compass-ci] Re: [PATCH v4 lkp-tests] fix: btrfs-progs is not installed when os_mount=initramfs

Let's install btrfs tools instead. Since btrfs supports snapshot and multi-subvolume. It's more handy to use when installing many versions of OS.

Refer to ~/lkp-tests/bin/rsync-rootfs

• 	if has_cmd mkfs.btrfs; then
  

• 		mkfs.btrfs -f $rootfs_partition
  

• 		mount $rootfs_partition $ROOTFS_DIR
  

• 	else
  

• 		has_cmd mkfs.ext4 && {
  

• 			mkfs.ext4 -F $rootfs_partition
  

if/else不对称, 导致多了一层缩进。

Thanks, Fengguang

• 			mount $rootfs_partition $ROOTFS_DIR
  

• 		}
  

• 	fi
  

  } mkdir -p $ROOTFS_DIR/tmp CACHE_DIR=$ROOTFS_DIR/tmp

-- 2.23.0