util-linux-fdisk issues regarding auto-remounting of partitions
Hi all!
I'm seeking some help/comments/fix from the community on the following issue:
Case 1:
I'm facing issues while creating partitions using fdisk from util-linux (v2.32.1 from sumo) with regard to auto-mounting of removable/block devices.
After unmounting all the partitions of an attached USB/HDD:
$ umount /dev/sda*
whenever I run fdisk on the USB/HDD to create partitions i.e.:
$ fdisk /dev/sda
the kernel generates remove+change+add events on the /dev/sda* devices (see logs at the end), and this is followed by remounting of all the /dev/sda* devices by udev automount.rules mount.sh.
So, before I could even create any partitions before writing the changes, the existing partitions got auto-remounted.
Case 2:
On the other hand, I have Busybox (v1.27.2 from sumo) version of fdisk that works perfectly fine! I was able to create partitions and write changes just fine!
Has anybody else come across such an issue, or is there any known bug-report/bug-fix for this? If so, we should probably fix it in oe-core as well.
LOGS:
Case 1:
{{{
root@snowyowl:~# opkg list-installed | grep util-linux util-linux - 2.32.1-r0.0 util-linux-agetty - 2.32.1-r0.0 util-linux-blkid - 2.32.1-r0.0 util-linux-cfdisk - 2.32.1-r0.0 util-linux-fdisk - 2.32.1-r0.0 util-linux-fsck - 2.32.1-r0.0 util-linux-ionice - 2.32.1-r0.0 util-linux-losetup - 2.32.1-r0.0 util-linux-lsblk - 2.32.1-r0.0 util-linux-mkfs - 2.32.1-r0.0 util-linux-mount - 2.32.1-r0.0 util-linux-mountpoint - 2.32.1-r0.0 util-linux-prlimit - 2.32.1-r0.0 util-linux-readprofile - 2.32.1-r0.0 util-linux-sfdisk - 2.32.1-r0.0 util-linux-sulogin - 2.32.1-r0.0 util-linux-swaponoff - 2.32.1-r0.0 util-linux-switch-root - 2.32.1-r0.0 util-linux-umount - 2.32.1-r0.0 root@snowyowl:~#
root@snowyowl:~# fdisk --version fdisk from util-linux 2.32.1 root@snowyowl:~#
root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on devtmpfs 16403380 4 16403376 0% /dev /dev/sdb1 785648 776980 8668 99% /media/boot-sdb1 /dev/sda3 10255672 23096 9708288 0% /media/sda3 /dev/sda1 10475504 8 10475496 0% /media/sda1 /dev/sda4 275653124 60448 261520648 0% /media/sda4 /dev/sda2 10321208 23028 9773892 0% /media/sda2 /dev/loop0 693348 661460 0 100% / tmpfs 16410896 0 16410896 0% /dev/shm tmpfs 16410896 9048 16401848 0% /run tmpfs 16410896 0 16410896 0% /sys/fs/cgroup tmpfs 16410896 0 16410896 0% /tmp tmpfs 16410896 156 16410740 0% /var/volatile tmpfs 16410896 0 16410896 0% /srv/nfs root@snowyowl:~# root@snowyowl:~# root@snowyowl:~# umount /dev/sda* umount: /dev/sda: not mounted. root@snowyowl:~# fdisk /dev/sda
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them. Be careful before using the write command.
sda: sda1 sda2 sda3 sda4
Command (m for help): EXT4-fs (sda3): mounting ext3 file system using the ext4 subsystem EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null) EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem
EXT4-fs (sda2): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (sda2): mounted filesystem without journal. Opts: (null)
FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
Command (m for help): q
root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on devtmpfs 16403380 4 16403376 0% /dev /dev/sdb1 785648 776980 8668 99% /media/boot-sdb1 /dev/loop0 693348 661460 0 100% / tmpfs 16410896 0 16410896 0% /dev/shm tmpfs 16410896 9056 16401840 0% /run tmpfs 16410896 0 16410896 0% /sys/fs/cgroup tmpfs 16410896 0 16410896 0% /tmp tmpfs 16410896 160 16410736 0% /var/volatile tmpfs 16410896 0 16410896 0% /srv/nfs /dev/sda3 10255672 23096 9708288 0% /run/media/sda3 /dev/sda2 10321208 23028 9773892 0% /run/media/sda2 /dev/sda1 10475504 8 10475496 0% /run/media/sda1 /dev/sda4 275653124 60448 261520648 0% /run/media/sda4 root@snowyowl:~# root@snowyowl:~# root@snowyowl:~# root@snowyowl:~# fdisk /dev/sda
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them. Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 298.1 GiB, 320072933376 bytes, 625142448 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt
Disk identifier: EB25BC79-F9F4-5B4C-B3B5-C5D820D2041A
Device Start End Sectors Size Type
/dev/sda1 2048 20973567 20971520 10G Linux filesystem /dev/sda2 20973568 41945087 20971520 10G Linux filesystem /dev/sda3 41945088 62916607 20971520 10G Linux filesystem
/dev/sda4 62916608 625142414 562225807 268.1G Linux filesystem
Command (m for help): q
root@snowyowl:~#
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umount
/dev/sda*
root@snowyowl:~# udevadm monitor calling: monitor monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent
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fdisk started
KERNEL[447.164696] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[447.164756] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[447.164803] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[447.164840] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) KERNEL[447.169275] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[447.169346] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[447.169777] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[447.169873] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[447.169962] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) UDEV [447.185874] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) UDEV [447.187145] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) UDEV [447.187303] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) UDEV [447.188680] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) UDEV [447.319973] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) UDEV [448.594787] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) UDEV [448.758076] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) UDEV [449.014413] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) UDEV [449.040579] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block)
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fdisk closed
KERNEL[453.116231] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[453.116441] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[453.116594] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[453.116781] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[453.116968] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) UDEV [453.124438] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) UDEV [453.434036] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) UDEV [453.484742] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) UDEV [453.670409] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) UDEV [453.682091] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block)
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fdisk started
fdisk closed
KERNEL[491.540790] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[491.540877] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[491.540930] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[491.540994] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[491.541049] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) UDEV [491.547813] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) UDEV [491.549508] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) UDEV [491.551876] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) UDEV [491.552411] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) UDEV [491.552619] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block)
}}}
Case 2:
{{{
root@snowyowl:~# fdisk --version fdisk: unrecognized option '--version' BusyBox v1.27.2 (2018-11-30 17:33:13 UTC) multi-call binary.
Usage: fdisk [-ul] [-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK root@snowyowl:~#
root@snowyowl:~#
root@snowyowl:~# uname -a Linux snowyowl 4.14.71-yocto-standard #1 SMP PREEMPT Sun Dec 23 12:44:13 UTC 2018 x86_64 GNU/Linux root@snowyowl:~# root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on none 16403532 4 16403528 0% /dev /dev/sda3 10255672 23096 9708288 0% /media/sda3 /dev/sda2 10321208 23028 9773892 0% /media/sda2 /dev/sda1 10475504 8 10475496 0% /media/sda1 /dev/sda4 275653124 60448 261520648 0% /media/sda4 /dev/sdb1 417640 407656 9984 98% /media/realroot /dev/loop0 367315 300955 42876 88% / tmpfs 16410988 0 16410988 0% /dev/shm tmpfs 16410988 9088 16401900 0% /run tmpfs 16410988 0 16410988 0% /sys/fs/cgroup tmpfs 16410988 0 16410988 0% /tmp tmpfs 16410988 20 16410968 0% /var/volatile root@snowyowl:~# root@snowyowl:~# umount /dev/sda* umount: /dev/sda: not mounted. root@snowyowl:~# root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on none 16403532 4 16403528 0% /dev /dev/sdb1 417640 407656 9984 98% /media/realroot /dev/loop0 367315 300955 42876 88% / tmpfs 16410988 0 16410988 0% /dev/shm tmpfs 16410988 9088 16401900 0% /run tmpfs 16410988 0 16410988 0% /sys/fs/cgroup tmpfs 16410988 0 16410988 0% /tmp tmpfs 16410988 20 16410968 0% /var/volatile root@snowyowl:~# root@snowyowl:~# fdisk /dev/sda Found valid GPT with protective MBR; using GPT
Command (m for help): p
Disk /dev/sda: 625142448 sectors, 2141M
Logical sector size: 512
Disk identifier (GUID): eb25bc79-f9f4-5b4c-b3b5-c5d820d2041a Partition table holds up to 128 entries
First usable sector is 2048, last usable sector is 625142414
Number Start (sector) End (sector) Size Name
1 2048 20973567 10.0G
2 20973568 41945087 10.0G
3 41945088 62916607 10.0G
4 62916608 625142414 268GCommand (m for help): q
root@snowyowl:~# sda: sda1 sda2 sda3 sda4 EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem EXT4-fs (sda3): mounting ext3 file system using the ext4 subsystem EXT4-fs (sda2): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (sda2): mounted filesystem without journal. Opts: (null) EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null) FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on none 16403532 4 16403528 0% /dev /dev/sdb1 417640 407656 9984 98% /media/realroot /dev/loop0 367315 300955 42876 88% / tmpfs 16410988 0 16410988 0% /dev/shm tmpfs 16410988 9096 16401892 0% /run tmpfs 16410988 0 16410988 0% /sys/fs/cgroup tmpfs 16410988 0 16410988 0% /tmp tmpfs 16410988 24 16410964 0% /var/volatile /dev/sda2 10321208 23028 9773892 0% /run/media/sda2 /dev/sda3 10255672 23096 9708288 0% /run/media/sda3 /dev/sda1 10475504 8 10475496 0% /run/media/sda1 /dev/sda4 275653124 60448 261520648 0% /run/media/sda4 root@snowyowl:~# root@snowyowl:~# umount /dev/sda* umount: /dev/sda: not mounted. root@snowyowl:~# root@snowyowl:~# fdisk /dev/sda Found valid GPT with protective MBR; using GPT
Command (m for help): p
Disk /dev/sda: 625142448 sectors, 2141M
Logical sector size: 512
Disk identifier (GUID): eb25bc79-f9f4-5b4c-b3b5-c5d820d2041a Partition table holds up to 128 entries
First usable sector is 2048, last usable sector is 625142414
Number Start (sector) End (sector) Size Name
1 2048 20973567 10.0G
2 20973568 41945087 10.0G
3 41945088 62916607 10.0G
4 62916608 625142414 268GCommand (m for help):
Command (m for help): q
root@snowyowl:~# sda: sda1 sda2 sda3 sda4 EXT4-fs (sda2): mounting ext2 file system using the ext4 subsystem EXT4-fs (sda3): mounting ext3 file system using the ext4 subsystem EXT4-fs (sda2): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (sda2): mounted filesystem without journal. Opts: (null) EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null) FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. EXT4-fs (sda4): mounted filesystem with ordered data mode. Opts: (null)
root@snowyowl:~# df Filesystem 1K-blocks Used Available Use% Mounted on none 16403532 4 16403528 0% /dev /dev/sdb1 417640 407656 9984 98% /media/realroot /dev/loop0 367315 300955 42876 88% / tmpfs 16410988 0 16410988 0% /dev/shm tmpfs 16410988 9096 16401892 0% /run tmpfs 16410988 0 16410988 0% /sys/fs/cgroup tmpfs 16410988 0 16410988 0% /tmp tmpfs 16410988 24 16410964 0% /var/volatile /dev/sda3 10255672 23096 9708288 0% /run/media/sda3 /dev/sda2 10321208 23028 9773892 0% /run/media/sda2 /dev/sda1 10475504 8 10475496 0% /run/media/sda1 /dev/sda4 275653124 60448 261520648 0% /run/media/sda4 root@snowyowl:~# root@snowyowl:~# fdisk /dev/sda Found valid GPT with protective MBR; using GPT
Command (m for help): p
Disk /dev/sda: 625142448 sectors, 2141M
Logical sector size: 512
Disk identifier (GUID): eb25bc79-f9f4-5b4c-b3b5-c5d820d2041a Partition table holds up to 128 entries
First usable sector is 2048, last usable sector is 625142414
Number Start (sector) End (sector) Size Name
1 2048 20973567 10.0G
2 20973568 41945087 10.0G
3 41945088 62916607 10.0G
4 62916608 625142414 268GCommand (m for help): q
root@snowyowl:~#
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umount
/dev/sda*
root@snowyowl:~# udevadm monitor -k monitor will print the received events for: KERNEL - the kernel uevent
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fdisk started
fdisk closed
KERNEL[307.038078] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[307.038134] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[307.038178] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[307.038223] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) KERNEL[307.073028] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[307.073608] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[307.073691] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[307.073734] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[307.073784] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block)
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umount
/dev/sda*
fdisk started
fdisk closed
KERNEL[344.850456] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[344.850509] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[344.850547] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[344.850662] remove /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block) KERNEL[344.885418] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[344.885518] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[344.885577] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[344.885632] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[344.885692] add /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block)
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fdisk started
fdisk closed
KERNEL[362.515656] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda (block) KERNEL[362.515852] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda1 (block) KERNEL[362.515916] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda2 (block) KERNEL[362.515970] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda3 (block) KERNEL[362.516030] change /devices/pci0000:00/0000:00:08.1/0000:03:00.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/sda4 (block)
}}}
Thanks
-
Arsalan