Review ext4 journalctl logs

kernel: EXT4-fs (vdb1): mounted filesystem with ordered data mode. Opts: (null)
kernel: EXT4-fs (vda2): re-mounted. Opts: (null)

EXT4-fs (sda2): initial error at time 1595448557: ext4_journal_check_start:61

kernel: EXT4-fs (sda2): Remounting filesystem read-only

Aug 10 03:23:58 SERVER kernel: EXT4-fs (sda2): INFO: recovery required on readonly filesystem

kernel: EXT4-fs (sda2): warning: mounting fs with errors, running e2fsck is recommended

touch file.txt
touch: cannot touch 'file.txt': Read-only file system

Oct 04 12:11:12 SERVER kernel: EXT4-fs (sdb1): error count since last fsck: 15

Related terms

• fsck
• mount
• Windows Unified Write Filter (UWF)

See also

• ext4 e2fsck, fsck.ext4, superblock, inode, block size, mkfs.ext4 tune2fs, wipefs, resize2fs stat, extents, Review ext4 journalctl logs. Read-only file system, virt-resize, ACL
• File systems: ext4, XFS, ZFS, btrfs, wipefs, findfs, HDFS, overlay, aufs, virt-filesystems, Windows: (FAT, NTFS, ReFS), GPFS, squashfs, Ecryptfs, Encfs, FUSE, VMFS, Comparison of distributed file systems, Userspace filesystem, Resize filesystem size
• systemd-journald: journalctl, /etc/systemd/journald.conf, journalctl logs, journalctl --list-boots, journalctl --disk-usage, journalctl -u kubelet, journalctl -u prometheus, journalctl --help