Вывод mount и df покажите для начала.
[andrei@compaq ~]$
mountudevfs on /dev type devtmpfs (rw,relatime,size=5120k,nr_inodes=723851,mode=755)
runfs on /run type tmpfs (rw,relatime,size=5120k,mode=755)
/dev/sda2 on / type ext4 (rw,relatime,data=ordered)
proc on /proc type proc (rw,nosuid,noexec,relatime,gid=19)
sysfs on /sys type sysfs (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 /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
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)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=25,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
runfs on /var/run type tmpfs (rw,relatime,size=5120k,mode=755)
runfs on /var/lock type tmpfs (rw,relatime,size=5120k,mode=755)
/dev/sda5 on /mnt/PUB type ext4 (rw,nosuid,nodev,noexec,relatime,data=ordered)
/dev/sda3 on /home type ext4 (rw,nosuid,relatime,data=ordered)
/dev/sda3 on /tmp type ext4 (rw,nosuid,relatime,data=ordered)
/dev/sr0 on /media/cdrom type iso9660 (ro,nosuid,nodev,noexec,relatime,utf8,user=andrei)
[andrei@compaq ~]$
dfФайловая система Размер Использовано Дост Использовано% Cмонтировано в
udevfs 5,0M 0 5,0M 0% /dev
runfs 5,0M 1012K 4,1M 20% /run
/dev/sda2 42G 6,9G 33G 18% /
tmpfs 2,8G 84K 2,8G 1% /dev/shm
tmpfs 2,8G 0 2,8G 0% /sys/fs/cgroup
runfs 5,0M 1012K 4,1M 20% /var/run
runfs 5,0M 1012K 4,1M 20% /var/lock
/dev/sda5 20G 44M 19G 1% /mnt/PUB
/dev/sda3 157G 139M 149G 1% /tmp
/dev/sr0 4,3G 4,3G 0 100% /media/cdrom
[andrei@compaq ~]$
blkid/dev/sr0: UUID="2013-07-23-15-17-58-00" LABEL="ALT Linux 7.0.0 KDesktop (Cen" TYPE="iso9660" PTTYPE="dos"
[root@compaq ~]# sh
/etc/fstab/etc/fstab: line 1: proc: команда не найдена
/etc/fstab: line 2: devpts: команда не найдена
/etc/fstab: line 4: /: является директорией
/etc/fstab: line 5: /home: является директорией
/etc/fstab: line 6: /mnt/PUB: является директорией
/etc/fstab: line 7: swap: команда не найдена
/etc/fstab: line 8: /dev/sr0: Отказано в доступе
/etc/fstab: line 9: /home/tmp: является директорией
[root@compaq ~]#