Issue with orphan inode

I am using a virtual machine on a server I cannot access and I'm having the filesystem mounted in read-only mode: # dmesg .... [2.535658] EXT4-fs (vda): Couldn't remount RDWR because of unprocessed orphan inode list. Please umount/remount instead So I tried to run: # e2fsck -f /dev/vda e2fsck 1.42.9 (28-Dec-2013) /dev/vda has unsupported feature(s): metadata_csum e2fsck: Get a newer version of e2fsck! Output of df: /dev/root 41022688 37964956 944196 98% / devtmpfs 4084008 0 4084008 0% /dev tmpfs 4085752 0 4085752 0% /dev/shm tmpfs 4085752 397012 3688740 10% /run tmpfs 4085752 0 4085752 0% /sys/fs/cgroup tmpfs 817152 0 817152 0% /run/user/0 tmpfs 817152 0 817152 0% /run/user/1000 Output of mount: /dev/vda on / type ext4 (ro,relatime,stripe=8191,data=ordered) devtmpfs on /dev type devtmpfs (rw,relatime,size=4084008k,nr_inodes=1021002,mode=755) sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755) tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd) cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=23,pgrp=1,timeout=300,minproto=5,maxproto=5,direct) configfs on /sys/kernel/config type configfs (rw,relatime) fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime) nfsd on /proc/fs/nfsd type nfsd (rw,relatime) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime) debugfs on /sys/kernel/debug type debugfs (rw,relatime) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M) mqueue on /dev/mqueue type mqueue (rw,relatime) tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=817152k,mode=700) tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=817152k,mode=700,uid=1000,gid=1000) Of course, I cannot update e2fsck, as I have a read-only filesystem. How can I escape the loop?