nevím co jsou to "mrtvá data". Já ramdisk nedělal ale nějaké tmpfs tu jsou.
takhle vypadá ten mount a df:
[root@localhost ~]# mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=8029984k,nr_inodes=2007496,mode=755)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,seclabel,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime,seclabel)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,blkio)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,cpu,cpuacct)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,memory)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,net_cls,net_prio)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,rdma)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,freezer)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,perf_event)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,cpuset)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,hugetlb)
none on /sys/kernel/tracing type tracefs (rw,relatime,seclabel)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/mapper/cl-root on / type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
systemd-1 on /mnt/petr type autofs (rw,relatime,fd=28,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=24048)
mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,relatime,seclabel)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=41,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=24094)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/dev/sdd on /mnt/ssd type ext4 (rw,relatime,seclabel)
/dev/sdf1 on /mnt/thin type ext4 (ro,relatime,seclabel,stripe=8191)
/dev/sde1 on /mnt/hgst type ext4 (rw,relatime,seclabel)
/dev/mapper/cl-centos on /home type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
/dev/sdc1 on /boot type ext4 (rw,relatime,seclabel)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,seclabel,size=1609700k,mode=700,uid=1001,gid=1001)
gvfsd-fuse on /run/user/1001/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1001,group_id=1001)
//10.0.0.24/petr on /mnt/petr type cifs (rw,nosuid,nodev,noexec,relatime,vers=1.0,cache=strict,username=admin,uid=1001,forceuid,gid=1001,forcegid,addr=10.0.0.24,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,rsize=61440,wsize=65536,bsize=1048576,echo_interval=60,actimeo=1,x-systemd.automount,_netdev)
/dev/sda1 on /mnt/blue type ext4 (ro,relatime,seclabel,stripe=8191)
/dev/sdb1 on /mnt/blue2 type ext4 (ro,relatime,seclabel,stripe=8191)
/dev/sdg1 on /run/media/surf/Thin type ext4 (rw,nosuid,nodev,relatime,seclabel,stripe=8191,uhelper=udisks2)
/dev/sdg1 on /mnt/thin type ext4 (rw,relatime,seclabel,stripe=8191)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 7.7G 0 7.7G 0% /dev
tmpfs 7.7G 1.3M 7.7G 1% /dev/shm
tmpfs 7.7G 74M 7.7G 1% /run
tmpfs 7.7G 0 7.7G 0% /sys/fs/cgroup
/dev/mapper/cl-root 50G 29G 22G 58% /
/dev/sdd 458G 73M 435G 1% /mnt/ssd
/dev/sdg1 293G 154G 124G 56% /mnt/thin
/dev/sde1 458G 165G 270G 38% /mnt/hgst
/dev/mapper/cl-centos 150G 36G 114G 24% /home
/dev/sdc1 976M 293M 616M 33% /boot
tmpfs 1.6G 6.0M 1.6G 1% /run/user/1001
//10.0.0.24/petr 5.5T 3.8T 1.8T 69% /mnt/petr
/dev/sda1 457G 15G 419G 4% /mnt/blue
/dev/sdb1 457G 19G 415G 5% /mnt/blue2
[root@localhost ~]#
jinak bych tu měl ještě /dev/mapper/cl-swap
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