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Simba7
l33t
Joined: 22 Jan 2007
Posts: 708
Location: Billings, MT, USA
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 Posted: Sat Mar 13, 2010 3:37 pm Post subject: rootfs & /dev/root? |
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I know this topic probably has been covered here.. somewhere.. But here it goes..
I recently rebuilt all my boxes with the latest ~x86 build. They all work perfectly, but I noticed something I've never seen before.
I went to do a "df" and seen this:
| Code: | rootfs 56355776 716448 55639328 2% /
/dev/root 56355776 716448 55639328 2% / |
Is this normal? I checked with my ol' Portage Server (P233MMX w/kernel 2.6.29) and it's on there, too. |
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Rexilion
Veteran
Joined: 17 Mar 2009
Posts: 1044
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| Posted: Sat Mar 13, 2010 4:04 pm Post subject: |
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Mine looks like this:
| Quote: | ronald@Charlie ~ $ df
Bestandssysteem 1K-blokken Gebruikt Beschikbr Geb% Aangekoppeld op
/dev/sda1 15615196 6204312 8617680 42% /
udev 10240 148 10092 2% /dev
/dev/mapper/securehome
59296700 12895224 43389340 23% /home/secure
tmpfs 480284 12 480272 1% /tmp
svcdir 2048 208 1840 11% /var/lib/init.d |
How do you boot your kernel? With or without an init? If yes, please show me your init  . |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7470
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| Posted: Sat Mar 13, 2010 4:33 pm Post subject: |
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| Rexilion wrote: | Mine looks like this:
tmpfs 480284 12 480272 1% /tmp
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lmao, yours looks bork 
| fstab wrote: | # glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
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| /usr/src/linux/Documentation/filesystems/ramfs-rootfs-initramfs.txt wrote: | Rootfs is a special instance of ramfs (or tmpfs, if that's enabled), which is always present in 2.6 systems.
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so except if your glibc < 2.2 and kernel < 2.6 you have something wrong
(on a more serious note i suppose just mounting your tmpfs to /dev/shm will correct that) |
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Rexilion
Veteran
Joined: 17 Mar 2009
Posts: 1044
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| Posted: Sat Mar 13, 2010 5:22 pm Post subject: |
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| krinn wrote: | | lmao, yours looks bork |
 you are right, but I thought it was always silently mounted if not specified by /etc/fstab. I added it now, but I can tell you I never had any problems that seem to be fixed by this |
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Xevious
n00b
Joined: 25 Dec 2004
Posts: 10
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| Posted: Tue Jul 13, 2010 10:27 am Post subject: |
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I have the same problem.
I recently updated some packages (udev,baselayout,sysvinit,openrc, etc...) and it changed the behavior. Here is some example DF output:
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root@gentoo: 12:37 AM :~# df -H
Filesystem Size Used Avail Use% Mounted on
rootfs 129G 57G 73G 44% /
/dev/root 129G 57G 73G 44% /
rc-svcdir 1.1M 197k 852k 19% /lib/rc/init.d
udev 11M 181k 11M 2% /dev
tmpfs 13G 0 13G 0% /dev/shm
/dev/sdd1 36T 17T 20T 46% /data
osol:/data 18T 15T 2.8T 84% /osol
myth:/tv 3.5T 3.4T 142G 96% /myth
myth:/tv/video 750G 730G 20G 98% /myth/video
myth:/tv/video/750 750G 729G 21G 98% /myth/video/750
box:/data 8.9T 7.9T 1.1T 89% /colo
root@gentoo: 12:37 AM :~# ls -lsah /dev/root
0 lrwxrwxrwx 1 root root 4 2010-07-12 17:09 /dev/root -> sdc1
root@gentoo: 12:37 AM :~#
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Anyone know how to get the old behavior back?
I am not using an initramfs. |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7470
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| Posted: Tue Jul 13, 2010 12:42 pm Post subject: |
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it's normal and nothing is wrong there in case you didn't catch it yet.
and if you really don't want that "name change" you already know the solve.
| Quote: | | updated some packages (udev,baselayout,sysvinit,openrc, etc...) and it changed the behavior |
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Xevious
n00b
Joined: 25 Dec 2004
Posts: 10
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| Posted: Tue Jul 13, 2010 9:14 pm Post subject: |
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| krinn wrote: | it's normal and nothing is wrong there in case you didn't catch it yet.
and if you really don't want that "name change" you already know the solve.
| Quote: | | updated some packages (udev,baselayout,sysvinit,openrc, etc...) and it changed the behavior |
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Well more than anything is the problem that root is listed twice and the scripts I have for calculating disk usage over all mounted file-systems are now not accurate and I will have to modify the scripts which is quite annoying.
Unfortunately downgrading the packages isn't really an option. They were no longer in portage and even rsyncing some of the portage dirs from an old comp that did not have an emerge --sync ran on it in a long time and re-installing the old packages caused my machine to no longer boot.
There has to be some way to get rid of this behavior? Does anyone know what specific package caused this change? |
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