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83657664
n00b
Joined: 16 Mar 2011
Posts: 50
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 Posted: Sat Jul 02, 2016 3:45 pm Post subject: ［SOLVED］/dev/mapper/gentoo-usr is already mounted opertional |
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when system boot,
everything seems ok,when it is mount partion.
only this device :
| Code: | /dev/mapper/gentoo-usr is already mounted
e2fsck can not running,aborting.
error opertional . |
i can't figure why this error happened.
df print
/dev/mapper/gentoo-usr is mounted
it can use mounted files
but can't be unmounted.
| Code: | it's sys target is busy
isof(8) and fuser(1).......... |
i can't remember.
anyone know why?
Last edited by 83657664 on Sat Jul 16, 2016 12:00 am; edited 2 times in total |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54821
Location: 56N 3W
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| Posted: Sat Jul 02, 2016 4:09 pm Post subject: |
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83657664,
After your inappropriate large text, its tempting to just post 'yes' but that would be against the spirit of the Gentoo forum.
I guess that /dev/mapper/gentoo-usr ends up as /usr. The current wisdom is that to support a separate user, you need an initrd to mount it before udev starts.
Your initrd is therefore responsible for checking /dev/mapper/gentoo-usr before its mounted.
Its not an error to mount an already mounted filesystem but you can't check it.
My fstab has
| Code: | # now on ssd
UUID=1c981da8-f0f6-4953-b485-8dbc9e7c6879 /var ext4 noatime,noauto,discard 1 0
UUID=24e36648-f410-40b8-931f-41ad46741a47 /usr ext4 noatime,noauto,discard 1 0 |
because my initrd mounts both /usr and /var and I don't need localmount to try to remount them.
My initrd also does the fsck when its required.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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83657664
n00b
Joined: 16 Mar 2011
Posts: 50
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| Posted: Sat Jul 02, 2016 5:22 pm Post subject: |
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| NeddySeagoon wrote: | 83657664,
After your inappropriate large text, its tempting to just post 'yes' but that would be against the spirit of the Gentoo forum.
I guess that /dev/mapper/gentoo-usr ends up as /usr. The current wisdom is that to support a separate user, you need an initrd to mount it before udev starts.
Your initrd is therefore responsible for checking /dev/mapper/gentoo-usr before its mounted.
Its not an error to mount an already mounted filesystem but you can't check it.
My fstab has
| Code: | # now on ssd
UUID=1c981da8-f0f6-4953-b485-8dbc9e7c6879 /var ext4 noatime,noauto,discard 1 0
UUID=24e36648-f410-40b8-931f-41ad46741a47 /usr ext4 noatime,noauto,discard 1 0 |
because my initrd mounts both /usr and /var and I don't need localmount to try to remount them.
My initrd also does the fsck when its required. |
but how ?
i already had a initrd in /boot
just write a uuid and discard in my fstab,
will you tell me some steps to do?
thanks. |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54821
Location: 56N 3W
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| Posted: Sat Jul 02, 2016 5:48 pm Post subject: |
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83657664,
Thank you for fixing you first post.
You need the noauto option for /usr in /etc/fstab so that localmount does not try to mount the already mounted file system.
Do not be tempted to remove the /usr entry as the initrd may read it to find out where /usr is. Then booting will fail.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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83657664
n00b
Joined: 16 Mar 2011
Posts: 50
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| Posted: Sun Jul 03, 2016 5:57 am Post subject: |
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| NeddySeagoon wrote: | 83657664,
Thank you for fixing you first post.
You need the noauto option for /usr in /etc/fstab so that localmount does not try to mount the already mounted file system.
Do not be tempted to remove the /usr entry as the initrd may read it to find out where /usr is. Then booting will fail. |
add noauto,same error
before openrc start,i notice a msg:
| Quote: | | mount /dev/mapper/gentoo-usr as /usr, mount -etx4 ........ |
NeddySeagoon,
thank you for your help.
i think there is wrong with kernel config.
but where ?
which option can mount /usr before openrc start? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54821
Location: 56N 3W
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| Posted: Sun Jul 03, 2016 8:04 am Post subject: |
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83657664,
Your kernel is OK. If there were a problem there, it would just not work.
The message you see is a warning.
| Quote: | before openrc start,i notice a msg:
| Quote: | | mount /dev/mapper/gentoo-usr as /usr, mount -etx4 ........ |
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That's expected. Its from the initrd mounting /usr before it hands over to the real root filesystem.
The warning is generated by the localmount openrc service trying to mount /usr again and attempting to check it in the process.
Please post your /etc/fstab. Either copy and paste it to a post or use wgetpaste to put it onto a pastebin.
We don't want any copy typing errors.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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83657664
n00b
Joined: 16 Mar 2011
Posts: 50
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| Posted: Mon Jul 04, 2016 1:34 am Post subject: |
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NeddySeagoon,
here is my /etc/fstab:
| Code: |
/dev/sdb2 /boot ext4 defaults,noatime 1 2
/dev/mapper/gentoo-root / ext4 noatime 0 1
/dev/mapper/gentoo-usr /usr ext4 noatime 0 2
/dev/mapper/gentoo-opt /opt ext4 noatime 0 2
/dev/mapper/gentoo-var /var ext4 noatime 0 2
/dev/mapper/gentoo-home /home ext4 noatime 0 2
/dev/mapper/gentoo-swap none swap sw 0 0
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add noauto,same error |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54821
Location: 56N 3W
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| Posted: Mon Jul 04, 2016 5:37 pm Post subject: |
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83657664,
You don't have noauto.
| Code: | | /dev/mapper/gentoo-usr /usr ext4 noatime,noauto 0 2 |
Your initrd init script may read the file to determine that /usr is /dev/mapper/gentoo-usr. It will not use the mount options.
When localmount runs, controlled by OpenRC, it will not try to mount /usr again as localmount will obey the noauto.
That's fine as /usr is already mounted.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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83657664
n00b
Joined: 16 Mar 2011
Posts: 50
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| Posted: Sat Jul 09, 2016 11:48 am Post subject: |
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| NeddySeagoon wrote: | 83657664,
You don't have noauto.
| Code: | | /dev/mapper/gentoo-usr /usr ext4 noatime,noauto 0 2 |
Your initrd init script may read the file to determine that /usr is /dev/mapper/gentoo-usr. It will not use the mount options.
When localmount runs, controlled by OpenRC, it will not try to mount /usr again as localmount will obey the noauto.
That's fine as /usr is already mounted. |
NeddySeagoon
it's no help even change to noauto
here is my rc.log:
| Code: | rc shutdown logging started at Sat Jul 9 18:44:28 2016
* Caching service dependencies ...
[ ok ]
* Stopping local ...
[ ok ]
* Saving random seed ...
[ ok ]
* Deactivating additional swap space ...
[ ok ]
* Stopping sshd ...
[ ok ]
/lib64/rc/sh/rc-cgroup.sh: line 91: /sys/fs/cgroup/openrc/keymaps/tasks: No such file or directory
* Stopping DHCP Client Daemon ...
[ ok ]
* Stopping cronie ...
[ ok ]
* Stopping syslog-ng ...
[ ok ]
* Unmounting loop devices
* Unmounting filesystems
* Unmounting /tmp ...
[ ok ]
* Unmounting /opt ...
[ ok ]
* Unmounting /var ...
[ ok ]
* Unmounting /home ...
[ ok ]
* Deactivating swap devices ...
[ ok ]
* Shutting down the Logical Volume Manager
* Shutting Down LVs & VGs ...
Logical volume gentoo/root contains a filesystem in use.
Logical volume gentoo/usr contains a filesystem in use.
* Failed (possibly some LVs still needed for /usr or root)
[ !! ]
* Finished shutting down the Logical Volume Manager
* Stopping lvmetad ...
[ ok ]
* Stopping udev ...
[ ok ]
* Setting hardware clock using the system clock [Local Time] ...
[ ok ]
rc shutdown logging stopped at Sat Jul 9 18:44:30 2016
rc sysinit logging started at Sat Jul 9 18:46:21 2016
OpenRC 0.19.1 is starting up Gentoo Linux (x86_64)
* /proc is already mounted
* Mounting /run ...
* /run/openrc: creating directory
* /run/lock: creating directory
* /run/lock: correcting owner
* Remounting devtmpfs on /dev ...
[ ok ]
* Mounting /dev/mqueue ...
[ ok ]
* Mounting /dev/shm ...
[ ok ]
* Restoring SELinux contexts in /dev ...
[ ok ]
* Creating list of required static device nodes for the current kernel ...
[ ok ]
* Mounting debug filesystem ...
[ ok ]
* Mounting fuse control filesystem ...
[ ok ]
* Mounting SELinux filesystem ...
[ ok ]
* Mounting cgroup filesystem ...
[ ok ]
* Restoring SELinux contexts in /sys ...
[ ok ]
* Setting up tmpfiles.d entries for /dev ...
[ ok ]
* Starting udev ...
starting version 225
[ ok ]
* Generating a rule to create a /dev/root symlink ...
[ ok ]
* Populating /dev with existing devices through uevents ...
[ ok ]
* Waiting for uevents to be processed ...
[ ok ]
rc sysinit logging stopped at Sat Jul 9 18:46:21 2016
rc boot logging started at Sat Jul 9 18:46:21 2016
* Setting system clock using the hardware clock [Local Time] ...
[ ok ]
* Autoloaded 0 module(s)
[ ok ]
* /run/lvm: creating directory
* Starting lvmetad ...
[ ok ]
* Setting up the Logical Volume Manager ...
[ ok ]
* Checking local filesystems ...
/dev/mapper/gentoo-root: clean, 3717/983040 files, 234046/3932160 blocks
/dev/mapper/gentoo-home: clean, 12/32768000 files, 2107224/131072000 blocks
/dev/mapper/gentoo-usr is mounted.
e2fsck: Cannot continue, aborting.
/dev/mapper/gentoo-var: clean, 17867/6553600 files, 526216/26214400 blocks
/dev/mapper/gentoo-opt: clean, 286/3276800 files, 274769/13107200 blocks
/dev/mapper/gentoo-tmp: clean, 13/814400 files, 91836/3253248 blocks
/dev/sdb2: clean, 359/24384 files, 28720/97280 blocks
* Operational error
[ !! ]
* Remounting root filesystem read/write ...
[ ok ]
* Remounting filesystems ...
[ ok ]
* Updating /etc/mtab ...
* Creating mtab symbolic link
[ ok ]
/lib64/rc/sh/rc-cgroup.sh: line 91: /sys/fs/cgroup/openrc/swap/tasks: No such file or directory
* Activating swap devices ...
[ ok ]
* Mounting local filesystems ...
[ ok ]
* Mounting misc binary format filesystem ...
[ ok ]
* Loading custom binary format handlers ...
[ ok ]
/lib64/rc/sh/rc-cgroup.sh: line 91: /sys/fs/cgroup/openrc/sysctl/tasks: No such file or directory
* Configuring kernel parameters ...
[ ok ]
* Creating user login records ...
[ ok ]
* Wiping /tmp directory ...
[ ok ]
* Setting hostname to claymore ...
[ ok ]
* Setting terminal encoding [UTF-8] ...
[ ok ]
* Setting keyboard mode [UTF-8] ...
[ ok ]
* Loading key mappings [us] ...
[ ok ]
* Bringing up network interface lo ...
[ ok ]
* Activating additional swap space ...
[ ok ]
* Setting up tmpfiles.d entries ...
[ ok ]
* Initializing random number generator ...
[ ok ]
rc boot logging stopped at Sat Jul 9 18:46:26 2016
rc default logging started at Sat Jul 9 18:46:26 2016
* Checking your configfile (/etc/syslog-ng/syslog-ng.conf) ...
[ ok ]
* Starting syslog-ng ...
[ ok ]
/lib64/rc/sh/rc-cgroup.sh: line 91: /sys/fs/cgroup/openrc/cronie/tasks: No such file or directory
* Starting cronie ...
[ ok ]
* Starting DHCP Client Daemon ...
[ ok ]
/lib64/rc/sh/rc-cgroup.sh: line 91: /sys/fs/cgroup/openrc/net.eth0/tasks: No such file or directory
* Bringing up interface eth0
* dhcp ...
* Running dhcpcd ...
sending commands to master dhcpcd process
[ ok ]
* received address
[ ok ]
* Mounting network filesystems ...
[ ok ]
* Starting sshd ...
[ ok ]
* Starting local ...
[ ok ]
rc default logging stopped at Sat Jul 9 18:46:28 2016
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that's before rc start,
there is line :mout /dev/mapper/gentoo-usr as new /usr
it's pop up so quick,
i can't remember |
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83657664
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Joined: 16 Mar 2011
Posts: 50
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