Gentoo Archives: gentoo-user

From: Peter Humphrey <peter@××××××××××××.uk>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Mysteriously dismounting partition
Date: Mon, 26 Oct 2015 14:47:52
Message-Id: 8360594.28HCHUHxfk@wstn
1 Hello list,
3 I have a small rescue system in this box, using /dev/sda3 and /dev/sdb3 in a
4 traditional partition layout. The disks are (supposedly) identical SSDs. All
5 goes well when I boot the system, but by the time I come to write to sdb3 it's
6 dismounted itself. It even dismounted itself once in the middle of syncing
7 portage. Here's a snippet from fstab:
9 LABEL=RescueSys / ext4 relatime 1 1
10 LABEL=RescUsrBits /usr-bits ext4 relatime 1 2
12 I keep the portage tree under /usr-bits.
14 # dmesg | grep sdb3
15 [ 1.753508] sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 >
16 [ 4.833460] EXT4-fs (sdb3): mounted filesystem with ordered data mode. Opts:
17 (null)
18 [ 107.205918] EXT4-fs (sdb3): mounted filesystem with ordered data mode. Opts:
19 (null)
21 You can see the successful mount at 4.8 s; the entry at 107 s is me mounting
22 it again manually.
24 I've rewritten the partition label, and I've run a smartctl test which
25 reported no faults found. I've also just reduced the speed of the chipset,
26 which has three settings: good performance, better performance and turbo. It
27 adopts the turbo setting by default and I've now set it to "better". It's too
28 early yet to see if that will help.
30 What else can I try?
32 --
33 Rgds
34 Peter


Subject Author
Re: [gentoo-user] Mysteriously dismounting partition "Stefan G. Weichinger" <lists@×××××.at>