Hi, i was preparing my Leap 15.0 opensuse distribution for upgrade to 15.1 release.
So i cleaned the space on root file system using the snapper delete command.
Now "snapper list" reports
linux-2wjj:/.snapshots # snapper list
Type | # | Pre # | Date | User | Cleanup | Description | Userdata
-------+---+-------+--------------------------+------+---------+-----------------------+---------
single | 0 | | | root | | current |
single | 1 | | Fri Jan 29 19:28:27 2016 | root | | first root filesystem |
However if i go into the /.snapshots directory i found a snapshot directory "425" that is not listed in snapper list output :
linux-2wjj:/.snapshots # ls -l
total 4
drwxr-xr-x 1 root root 32 Jan 29 2016 1
drwxr-xr-x 1 root root 16 Sep 21 13:37 425
-rw-r----- 1 root root 184 Sep 21 01:32 grub-snapshot.cfg
linux-2wjj:/.snapshots #
I am unable to clean the 425 using "rm -rf 425" snapshot because the system reports to be "read-only"
but this is not the case because the /proc/mounts does not shows any read only mount point.
linux-2wjj:/.snapshots/425 # cat /proc/mounts
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
devtmpfs /dev devtmpfs rw,nosuid,size=1988544k,nr_inodes=497136,mode=755 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup /sys/fs/cgroup/unified cgroup2 rw,nosuid,nodev,noexec,relatime 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,name=systemd 0 0
pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0
cgroup /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_cls,net_prio 0 0
cgroup /sys/fs/cgroup/rdma cgroup rw,nosuid,nodev,noexec,relatime,rdma 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
/dev/sda2 / btrfs rw,relatime,space_cache,subvolid=259,subvol=/@/.snapshots/1/snapshot 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13214 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
mqueue /dev/mqueue mqueue rw,relatime 0 0
hugetlbfs /dev/hugepages hugetlbfs rw,relatime 0 0
/dev/sda2 /var/opt btrfs rw,relatime,space_cache,subvolid=274,subvol=/@/var/opt 0 0
/dev/sda2 /opt btrfs rw,relatime,space_cache,subvolid=262,subvol=/@/opt 0 0
/dev/sda2 /srv btrfs rw,relatime,space_cache,subvolid=263,subvol=/@/srv 0 0
/dev/sda2 /var/lib/mariadb btrfs rw,relatime,space_cache,subvolid=269,subvol=/@/var/lib/mariadb 0 0
/dev/sda2 /var/tmp btrfs rw,relatime,space_cache,subvolid=276,subvol=/@/var/tmp 0 0
/dev/sda2 /boot/grub2/x86_64-efi btrfs rw,relatime,space_cache,subvolid=261,subvol=/@/boot/grub2/x86_64-efi 0 0
/dev/sda2 /var/lib/mailman btrfs rw,relatime,space_cache,subvolid=268,subvol=/@/var/lib/mailman 0 0
/dev/sda2 /var/lib/named btrfs rw,relatime,space_cache,subvolid=271,subvol=/@/var/lib/named 0 0
/dev/sda2 /var/spool btrfs rw,relatime,space_cache,subvolid=275,subvol=/@/var/spool 0 0
/dev/sda2 /var/log btrfs rw,relatime,space_cache,subvolid=273,subvol=/@/var/log 0 0
/dev/sda2 /var/lib/mysql btrfs rw,relatime,space_cache,subvolid=270,subvol=/@/var/lib/mysql 0 0
/dev/sda2 /var/lib/pgsql btrfs rw,relatime,space_cache,subvolid=272,subvol=/@/var/lib/pgsql 0 0
/dev/sda2 /tmp btrfs rw,relatime,space_cache,subvolid=264,subvol=/@/tmp 0 0
/dev/sda2 /var/crash btrfs rw,relatime,space_cache,subvolid=266,subvol=/@/var/crash 0 0
/dev/sda2 /var/lib/machines btrfs rw,relatime,space_cache,subvolid=533,subvol=/@/var/lib/machines 0 0
/dev/sda2 /.snapshots btrfs rw,relatime,space_cache,subvolid=258,subvol=/@/.snapshots 0 0
/dev/sda2 /usr/local btrfs rw,relatime,space_cache,subvolid=265,subvol=/@/usr/local 0 0
/dev/sda2 /boot/grub2/i386-pc btrfs rw,relatime,space_cache,subvolid=260,subvol=/@/boot/grub2/i386-pc 0 0
/dev/sda2 /var/lib/libvirt/images btrfs rw,relatime,space_cache,subvolid=267,subvol=/@/var/lib/libvirt/images 0 0
/dev/sda3 /home xfs rw,relatime,attr2,inode64,noquota 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0
Downloads /media/sf_Downloads vboxsf rw,nodev,relatime,iocharset=utf8,uid=0,gid=479,dmode=0770,fmode=0770,tag=VBoxAutomounter 0 0
tmpfs /run/user/1000 tmpfs rw,nosuid,nodev,relatime,size=399352k,mode=700,uid=1000,gid=100 0 0
tracefs /sys/kernel/debug/tracing tracefs rw,relatime 0 0
gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=100 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
linux-2wjj:/.snapshots/425 #
I also checked the file system for errors but found any
linux-2wjj:~ # btrfs check --force /dev/sda2
WARNING: filesystem mounted, continuing because of --force
Checking filesystem on /dev/sda2
UUID: a8c4e732-824a-4e49-a599-7cfc3c561adc
checking extents
checking free space cache
checking fs roots
checking csums
checking root refs
found 53646729216 bytes used, no error found
total csum bytes: 50354064
total tree bytes: 1114816512
total fs tree bytes: 999653376
total extent tree bytes: 53526528
btree space waste bytes: 183687393
file data blocks allocated: 128831205376
referenced 72687431680
linux-2wjj:~ #
I need help ... Any hint to delete 425 snapshot directory ?
Tnx, Fabio,
