Sometimes my Ubuntu laptop malfunctions and the file system goes into read-only mode.
This might mean it’s time to upgrade to a new laptop. Which I will probably do in a few months.
But I want to note how I can get back to normal.
The obvious way is just to reboot. But sometimes the system goes into a initramfs prompt.
To solve the issue, I need the location of my drive in the /dev file system, which I can get by running df -h:
Filesystem Size Used Avail Use% Mounted on
udev 2.9G 0 2.9G 0% /dev
tmpfs 588M 8.9M 579M 2% /run
/dev/mapper/ubuntu--vg-root 453G 407G 23G 95% /
tmpfs 2.9G 344K 2.9G 1% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 2.9G 0 2.9G 0% /sys/fs/cgroup
/dev/sda1 236M 119M 105M 54% /boot
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 588M 52K 588M 1% /run/user/1000
/home/ericm/.Private 453G 407G 23G 95% /home/ericm
The one I want is “/dev/mapper/ubuntu–vg-root”.
So in the initramfs prompt, I run this:
fsck /dev/mapper/ubuntu--vg-root -y
I got this answer from the Ask Ubuntu site (see another answer here). As long as I can access my site from another machine, I should be able to solve this.
I may need to get a new laptop soon because sometimes my laptop does not detect the power chord is plugged in, so it starts using the battery.
You’re welcome.