Thread: Read only File system

my whole file system has become read in past 30 minutes or so. recreation of post accidentally put in apple users forum. have tried mounting. have tried sudo mounting few options. whole system cant access files. wrong?

btw, gen when mount:

code:

/dev/sda1 on / type ext4 (rw,errors=remount-ro,user_xattr,commit=0)  proc on /proc type proc (rw,noexec,nosuid,nodev)  sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)  fusectl on /sys/fs/fuse/connections type fusectl (rw)  none on /sys/kernel/debug type debugfs (rw)  none on /sys/kernel/security type securityfs (rw)  udev on /dev type devtmpfs (rw,mode=0755)  devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)  tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)  none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)  none on /run/shm type tmpfs (rw,nosuid,nodev)  binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)  gvfs-fuse-daemon on /home/josiah/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=josiah)    mount: warning: /etc/mtab not writable (e.g. read-only filesystem).         it's possible information reported mount(8) not         date. actual information system mount points         check /proc/mounts file.

linux won't mount writable ext filesystem contains errors. you'll need boot cd or usb stick , run command "fsck /dev/sda1", or force disk check on boot follows:

code:

sudo mount -n -o remount,rw / sudo touch /forcefsck sudo reboot

the first command forces os mount file system writable can create /forcefsck file touch command.

option use -f parameter shutdown command this:

code:

sudo shutdown -rf now

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