[gentoo-user] noatime option is ignored for /
Hello, I just found out that 'noatime' mount option is ignored on my system for / (root) partition. In /etc/fstab I have entry for /: /dev/sda6 / ext3 noatime,usrquota,grpquota and 'mount' command shows: /dev/sda6 on / type ext3 (rw,noatime,usrquota,grpquota) but /proc/mounts does not show noatime option: /dev/root / ext3 rw,data=ordered,usrquota,grpquota 0 0 When I do 'cat some_file', 'ls -lu' shows that its access time _is_ modified. However I can do 'mount -o remount /' and filesystem is then remounted correctly (access time is not modified anymore), I want to ask if this is normal behaviour and remounting / after boot is common solution. The root of problem is probably the fact, that /etc/fstab is not available when / is about to mount. But I did not find it mentioned in any ext3 tweaking guide or so. Everywhere is just add noatime option to fstab and you're fine. In Gentoo Handbook is also nothing about it (and noatime option is used for /). I think initrd could solve this problem but I do not want it. Is noatime for / working for you? Robert -- Robert Cernansky E-mail: [EMAIL PROTECTED] Jabber: [EMAIL PROTECTED] -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] noatime option is ignored for /
Am Sonntag 13 Mai 2007 15:48 schrieb Robert Cernansky: Hello, I just found out that 'noatime' mount option is ignored on my system for / (root) partition. In /etc/fstab I have entry for /: /dev/sda6 / ext3 noatime,usrquota,grpquota and 'mount' command shows: /dev/sda6 on / type ext3 (rw,noatime,usrquota,grpquota) but /proc/mounts does not show noatime option: [...] /dev/root / ext3 rw,data=ordered,usrquota,grpquota 0 0 Is noatime for / working for you? Robert less /proc/mounts | grep /dev/root /dev/root / ext3 rw,noatime,data=ordered 0 0 So, it's working for me. pgpEKF9V1wDDt.pgp Description: PGP signature
Re: [gentoo-user] noatime option is ignored for /
Robert Cernansky wrote: and 'mount' command shows: /dev/sda6 on / type ext3 (rw,noatime,usrquota,grpquota) but /proc/mounts does not show noatime option: /dev/root / ext3 rw,data=ordered,usrquota,grpquota 0 0 Hmm, same thing here: # grep / /etc/mtab /dev/hda9 / reiserfs rw,noatime 0 0 # grep / /proc/mounts rootfs / rootfs rw 0 0 /dev/root / reiserfs rw 0 0 # mount -o remount / # grep / /proc/mounts rootfs / rootfs rw 0 0 /dev/root / reiserfs rw,noatime 0 0 During a normal boot an ext2/ext3 root partition gets remounted: first it gets mounted read-only in case it needs to be fschecked, and then remounted read-write. I've changed the bootscripts to skip this double step, with the unintended effect of not getting all options applied. (Fixed now.) Maybe you did too? Benno -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] noatime option is ignored for /
On Sun, 13 May 2007 21:28:41 +0200 Benno Schulenberg [EMAIL PROTECTED] wrote: Robert Cernansky wrote: and 'mount' command shows: /dev/sda6 on / type ext3 (rw,noatime,usrquota,grpquota) but /proc/mounts does not show noatime option: /dev/root / ext3 rw,data=ordered,usrquota,grpquota 0 0 Hmm, same thing here: [...] During a normal boot an ext2/ext3 root partition gets remounted: first it gets mounted read-only in case it needs to be fschecked, and then remounted read-write. I've changed the bootscripts to skip this double step, with the unintended effect of not getting all options applied. (Fixed now.) Maybe you did too? I didn't modified the init scripts. But now I looked what is starting at boot and found out that / is remounted also during quotacheck - and this is the one that causes the problem. I've booted into single user mode and / was mounted correctly. Then ran quotacheck and after that it was mounted without noatime. So it is probably quotacheck bug. For now I added 'mount -o remount /' command to /etc/local.start as a workaround. Thank you all for your replies. Robert -- Robert Cernansky E-mail: [EMAIL PROTECTED] Jabber: [EMAIL PROTECTED] -- [EMAIL PROTECTED] mailing list
