salut,
voilà les infos demandées =>
jaja@quadcore:~$ cat /etc/fstab | grep -iA 40 dump ; echo ; uname -mrs
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb1 during installation
UUID=6917c492-98d5-4ac0-9d05-a4ee26785dd9 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda5 during installation
#UUID=3db7e20a-faa6-4312-afcd-41e0a8889408 /home ext4 defaults 0 2
/dev/sdb1 /home ext4 defaults 0 2
#UUID=a1125ecd-2d91-4091-9a22-1396a66a62c7 /home ext4 defaults 0 2
tmpfs /tmp tmpfs defaults,size=4g 0 0
#tmpfs /var/log tmpfs defaults,nosuid,nodev,noatime,mode=0755,size=30% 0 0
tmpfs /var/cache/apt/archives tmpfs defaults,size=6g 0 0
Linux 4.15.0-34-generic x86_64
jaja@quadcore:~$ mount -l | grep ...
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=3020436k,nr_inodes=755109,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=610144k,mode=755)
/dev/sda1 on / type ext4 (rw,relatime,block_validity,delalloc,barrier,user_xattr,acl,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
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=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=12551)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw,relatime,size=4194304k)
tmpfs on /var/cache/apt/archives type tmpfs (rw,relatime,size=6291456k)
/dev/sdb1 on /home type ext4 (rw,relatime,stripe=32745,data=ordered)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=610140k,mode=700,uid=1000,gid=1000)
/dev/sdc1 on /media/jaja/2C1D-9F8F type vfat (rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2)
ma clé usb est en dernier.
la commande "dmesg | grep ..." me renvoyé que ma clé n'était pas propre. je l'ai vérifié avec gparted et depuis :
[15592.044072] usb 2-2: new high-speed USB device number 5 using ehci-pci
[15592.202356] usb 2-2: New USB device found, idVendor=0c76, idProduct=0005
[15592.202360] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15592.202363] usb 2-2: Product: RunDisk
[15592.202365] usb 2-2: Manufacturer: USBDisk
[15592.202368] usb 2-2: SerialNumber: 0710290042012
[15592.264212] usb-storage 2-2:1.0: USB Mass Storage device detected
[15592.265038] scsi host6: usb-storage 2-2:1.0
[15592.265190] usbcore: registered new interface driver usb-storage
[15592.268204] usbcore: registered new interface driver uas
[15593.277144] scsi 6:0:0:0: Direct-Access USBDisk RunDisk 1.00 PQ: 0 ANSI: 2
[15593.277627] sd 6:0:0:0: Attached scsi generic sg3 type 0
[15593.280193] sd 6:0:0:0: [sdc] 8020000 512-byte logical blocks: (4.11 GB/3.82 GiB)
[15593.280875] sd 6:0:0:0: [sdc] Write Protect is off
[15593.280878] sd 6:0:0:0: [sdc] Mode Sense: 0b 00 00 08
[15593.281621] sd 6:0:0:0: [sdc] No Caching mode page found
[15593.281627] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[15593.372670] sdc: sdc1
[15593.375628] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[15596.490538] FAT-fs (sdc1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[15820.361956] sdc: sdc1
[15825.705823] sdc: sdc1
[15830.478914] usb 2-2: USB disconnect, device number 5
[15836.464063] usb 2-2: new high-speed USB device number 6 using ehci-pci
[15836.626292] usb 2-2: New USB device found, idVendor=0c76, idProduct=0005
[15836.626296] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15836.626299] usb 2-2: Product: RunDisk
[15836.626302] usb 2-2: Manufacturer: USBDisk
[15836.626304] usb 2-2: SerialNumber: 0710290042012
[15836.626720] usb-storage 2-2:1.0: USB Mass Storage device detected
[15836.630810] scsi host6: usb-storage 2-2:1.0
[15837.661093] scsi 6:0:0:0: Direct-Access USBDisk RunDisk 1.00 PQ: 0 ANSI: 2
[15837.661588] sd 6:0:0:0: Attached scsi generic sg3 type 0
[15837.662822] sd 6:0:0:0: [sdc] 8020000 512-byte logical blocks: (4.11 GB/3.82 GiB)
[15837.663710] sd 6:0:0:0: [sdc] Write Protect is off
[15837.663714] sd 6:0:0:0: [sdc] Mode Sense: 0b 00 00 08
[15837.666348] sd 6:0:0:0: [sdc] No Caching mode page found
[15837.666355] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[15837.756362] sdc: sdc1
[15837.759040] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[15851.906258] usb 2-2: USB disconnect, device number 6
[15854.452033] usb 2-2: new high-speed USB device number 7 using ehci-pci
[15854.610084] usb 2-2: New USB device found, idVendor=0c76, idProduct=0005
[15854.610087] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15854.610089] usb 2-2: Product: RunDisk
[15854.610091] usb 2-2: Manufacturer: USBDisk
[15854.610093] usb 2-2: SerialNumber: 0710290042012
[15854.610519] usb-storage 2-2:1.0: USB Mass Storage device detected
[15854.615363] scsi host6: usb-storage 2-2:1.0
[15855.645062] scsi 6:0:0:0: Direct-Access USBDisk RunDisk 1.00 PQ: 0 ANSI: 2
[15855.645576] sd 6:0:0:0: Attached scsi generic sg3 type 0
[15855.646886] sd 6:0:0:0: [sdc] 8020000 512-byte logical blocks: (4.11 GB/3.82 GiB)
[15855.647479] sd 6:0:0:0: [sdc] Write Protect is off
[15855.647483] sd 6:0:0:0: [sdc] Mode Sense: 0b 00 00 08
[15855.648311] sd 6:0:0:0: [sdc] No Caching mode page found
[15855.648317] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[15855.737835] sdc: sdc1
[15855.740607] sd 6:0:0:0: [sdc] Attached SCSI removable disk
mais démontage impossible encore.
jaja@quadcore:~$ sudo lsblk -o name,fstype,size,label,mountpoint
[sudo] Mot de passe de jaja :
NAME FSTYPE SIZE LABEL MOUNTPOINT
sda 37,3G
└─sda1 ext4 37,3G /
sdb 1,8T
└─sdb1 ext4 1,8T /home
sdc 3,8G
└─sdc1 vfat 3,8G /media/jaja/2C1D-9F8F
sr0 1024M
pour le test, j'utilise une clé USB de 4 Gb. je la branche. lance dolphin via le "notification de pérphérique". je ferme dolphin (sans ouvrir de fichier) et j'essaie de démonter ma clé comme pour lancer dolphin =>