Hi,
I have a strange problem with my centos7 file server. I have a large data storage (75TB in RAID6, managed by lvm) and each night I create a snapshot (removing first the previous one). The snapshot is mounted read-only so if a user remove a file accidentally he can restore it in the same day. However, if this snapshot exists, reboot of the server freeze at boot time and I must manually remove this snapshot. Why ? There are no entry in /etc/fstab for this snapshot, it is a cron script that manage this snapshot and mount it.
Patrick
On 8/19/20 1:02 AM, Patrick Bégou wrote:
However, if this snapshot exists, reboot of the server freeze at boot time and I must manually remove this snapshot. Why ?
It's a bug. Update dracut.
https://bugzilla.redhat.com/show_bug.cgi?id=1287940 https://bugzilla.redhat.com/show_bug.cgi?id=1546577
Hi Gordon,
my dracut package is the latest available for Centos7 (this occur just after my "yum update" and reboot). It is dracut-033-568.el7.x86_64 in CentOS Linux release 7.8.2003 (Core) I'm going to rebuild my initrd as suggested with the snapshot setup.
Thanks for the links.
Patrick
Le 19/08/2020 à 17:31, Gordon Messmer a écrit :
On 8/19/20 1:02 AM, Patrick Bégou wrote:
However, if this snapshot exists, reboot of the server freeze at boot time and I must manually remove this snapshot. Why ?
It's a bug. Update dracut.
https://bugzilla.redhat.com/show_bug.cgi?id=1287940 https://bugzilla.redhat.com/show_bug.cgi?id=1546577
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Hi,
I check this morning, dm-snapshot.ko was yet included in initrd as show by lsinitrd.
$ lsinitrd /boot/initramfs-3.10.0-1127.18.2.el7.x86_64.img | grep dm-snapshot.ko -rw-r--r-- 1 root root 20372 Jul 26 17:38 usr/lib/modules/3.10.0-1127.18.2.el7.x86_64/kernel/drivers/md/dm-snapshot.ko.xz
I've rebuilt the image this morning (dracut -fv) with the snapshot "on" and I'll try a reboot next week (I work remotely these next days).
An important thing is that during the kernel update (and initrd build for the new kernel), the snapshot was also available.
$lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert data1lv1 data1vg owi-aos--- 75,00t snapdata data1vg swi-aos--- <2,93t data1lv1 1,23 homevol osvg -wi-ao---- 4,88g optvol osvg -wi-ao---- <97,66g rootvol osvg -wi-ao---- <32,23g swapvol osvg -wi-ao---- 7,81g tmpvol osvg -wi-ao---- <9,77g varvol osvg -wi-ao---- <9,77g
Patrick
Le 19/08/2020 à 18:18, Patrick Bégou a écrit :
Hi Gordon,
my dracut package is the latest available for Centos7 (this occur just after my "yum update" and reboot). It is dracut-033-568.el7.x86_64 in CentOS Linux release 7.8.2003 (Core) I'm going to rebuild my initrd as suggested with the snapshot setup.
Thanks for the links.
Patrick
Le 19/08/2020 à 17:31, Gordon Messmer a écrit :
On 8/19/20 1:02 AM, Patrick Bégou wrote:
However, if this snapshot exists, reboot of the server freeze at boot time and I must manually remove this snapshot. Why ?
It's a bug. Update dracut.
https://bugzilla.redhat.com/show_bug.cgi?id=1287940 https://bugzilla.redhat.com/show_bug.cgi?id=1546577
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
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Gordon Messmer -
Patrick Bégou