Meu sistema é montado automaticamente como somente leitura e não tenho ideia do motivo.
Saída do fstab:
cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda1 during installation
UUID=28db2489-f60e-456c-9efd-7a961f3e970a / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=106e4470-d734-4cec-98a6-c7859aaedf18 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
Saída da montagem:
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none 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)
Eu pesquisei a noite toda incluindo:
Sistema de arquivos de leitura aleatória frequente SSD do Ubuntu 12.04
Eu não tenho ideia do porquê isso está acontecendo. Fiz o fsck na inicialização e não encontrei erros.
O disco está bem (500GB, usuário 38GB)