Hi helasz,
Am Donnerstag, den 15.01.2009, 09:40 +0100 schrieb [email protected]:
> Hi All,
>
> My limited contribution to the udev issue sounds like this:
>
> (main source:
> http://git.kernel.org/?p=linux/hotplug/udev.git;a=blob;hb=HEAD;f=README)
>
> In my understanding there are only a couple of requirements the above
> website mentions which are (possibly) not met in T2:
>
> 1) Groups and users
> „The system must have the following group names resolvable at udev
> startup:
> disk, cdrom, floppy, tape, audio, video, lp, tty, dialout, kmem.
> Especially in LDAP setups, it is required, that getgrnam() is able to resolve
> these group names with only the rootfs mounted, and while no network is
> available.”
>
> In my T2 (trunk) installation the following groups are not there:
> cdrom, floppy, tape, lp, dialout,
> I am not sure that groups ’tape’ and ’dialout’ are
> really needed, however in the above README that is explicitely stated.
>
> I have noticed that also group ’uucp’ and user
> ’vcsa’ are claimed to be missing by udev.
This is correct, some group id's expected by udev are missing. We
discussed this already some time ago, and had an issue in our old
bugtracker, but in fact it got never fixed. Changing the id's may break
the upgrade path (Emerge-Pkg) of old installations.
The attached REGISTER file is a proposal about reserved group and user
id's. The sysfiles.diff has the necessary changes for the fixed id's,
the changesets for dynamically registered id's have to be written.
Comments?
> 2) /dev/tmp
> “Very early in the boot process, the /dev/ directory should get a
> 'tmpfs'
> filesystem mounted, which is populated from scratch by udev. Created nodes
> or changed permissions will not survive a reboot, which is
> intentional.”
>
> The only item in /etc/fstab which may seem similar is:
> none /dev/shm tmpfs defaults 0 0
>
> At this point I am not sure where exactly the problem lies. My guess would
> be either /dev/tmp (instead of /dev/shm) is expected by udev or /dev/shm
> is created too late (-> I am also not sure what exactly “very early
> [in the boot process]” menas, I deduce from the context that in any
> case it should be done before udev be loaded.
> [...]
It's not /dev/tmp which has to be tmpfs, it's /dev itself. That is part
of the initrd scripts and therefore a fstab entry is missing. For
reference the generic initrd script is generated from
package/base/mkinitrd/initrdinit.sh
Michael
Reserved User and Group IDs:
----------------------------
- system users: - system groups:
root 0 root 0
toor 0 bin 1
bin 1 daemon 2
daemon 2 shadow 3
games 4
tty 5
disk 6
lp 7
mail 8
kmem 9
wheel 10
log 11 log 11
news 12 news 12
ftp 13 ftp 13
uucp 14 uucp 14
- D-BUS / HAL user - D-BUS / Hal group
haldaemon 15 haldaemon 15
dbus 16 dbus 16
- - hardware access groups:
video 20
audio 21
lp 22
floppy 23
dialout 24
usb 25
cdrom 26
burning 27
tape 28
scanner 29
[ free: 30 .. 38 ]
- mysql users: - mysql groups:
mysql 39 mysql 39
- oracle users: - oracle groups:
oracle 40 oracle 40
dba 41 dba 41
- postgresql users: - postgresql groups:
postgres 42 postgres 42
[ free: 43 .. 44 ]
- memcached user: -memcached group
memcached 45 memcached 45
[ free: 46 .. 52 ]
- cron users: - cron group:
cron 53 crontab 53
- clamav user: - clamav group:
clamav 54 clamav 54
- zeroinstall user: - zeroinstall group:
zeroinst 55 zeroinst 55
- dansguardian user: - dansguardian group:
dansguardian 56 dansguardian 56
[ free: 57 .. 59 ]
- exim users: - exim groups:
exim 60 exim 60
- sendmail users: - sendmail groups:
smmsp 61 smmsp 61
[ free: 62 ]
- postfix users: - postfix groups:
postdrop 63 postfix 64
postfix 64
- nullmailer users: - nullmailer groups:
nullmailer 68 nullmailer 68
- virtual console memory
vcsa 69 vcsa 69
- clockspeed:
Gtaiclock 63
- djbdns user:
Gdnscache 64
Gtinydns 65
- gdm user: - gdm group:
gdm 66 gdm 66
- gopher user: - gopher group:
gopher 70 gopher 70
- sfs user: - sfs group:
sfs 71 sfs 71
[ free: 72 .. 73 ]
- sshd users: - sshd groups:
sshd 74 sshd 74
- callweaver user: - callweaver group:
callweaver 75 callweaver 75
[ free: 76 .. 77 ]
- dovecot user: - dovecot group:
dovecot 78 dovecot 78
- mailman users: - mailman groups:
mailman 79 mailman 79
- httpd user: - httpd group:
http 80 http 80
- partimage users: - partimage groups:
partimag 81 partimag 81
- jabber user: - jabber group:
jabber 83 jabber 83
- qmail users: - qmail groups:
alias 90 nofiles 90
qmaild 91 qmail 91
qmaill 92
qmailp 93
qmailq 94
qmailr 95
qmails 96
- qscanq users: . qscanq groups:
Gqscanq 97 Gqscanq 97
- anonymous user
nobody 99 nobody 99
- regular user group
users 100
- ldap user: - ldap group:
ldap 389 ldap 389
- jboss users: - jboss groups:
jboss 390 jboss 390
- rsbac user: - rsbac group:
secoff 400 rsbac 400
Free IDs: 30-38,46-52,57-62,67-69,72-74,77,84-388,391-399,401-999
Filedescriptor Numbers
----------------------
199 Output plugins unchroot mechanism
200 Package build $builddir/build.pid
201 Target build $build_logs/build_target_$$.log
Licence Names (for package description):
----------------------------------------
Unknown The Licence of this package isn't known
GPL The GNU General Public Licence
LGPL The GNU Library General Public Licence
FDL The GNU Free Documentation License
MPL The Mozilla Public Licence
MIT The MIT License
BSD The BSD Licence
APL The Apache License
QPL The QPL License
APSL Apple Public Source License
CDDL Sun Common Development and Distribution License
IBM-Public-License IBM Open Source License
OpenSource Any other Open Source licence
Free-to-use Any other non Open Source (but free to use) licence
Commercial Any other non Open Source (commercial) licence
Restricted Any other restricted licence
PublicDomain uncopyrighted
Artistic The Artistic License
wxWindows The wxWindows Library Licence
Index: package/base/sysfiles/etc_group.txt
===================================================================
--- package/base/sysfiles/etc_group.txt (Revision 31685)
+++ package/base/sysfiles/etc_group.txt (Arbeitskopie)
@@ -6,11 +6,24 @@
tty:x:5:
disk:x:6:
lp:x:7:
+mail:x:8:
kmem:x:9:
-mail:x:8:
wheel:x:10:
-video:x:16:
-audio:x:17:
+log:x:11:
+news:x:12:
+ftp:x:13:
+uucp:x:14:
+video:x:20:
+audio:x:21:
+lp:x:22:
+floppy:x:23:
+dialout:x:24:
+usb:x:25:
+cdrom:x:26:
+burning:x:27:
+tape:x:28:
+scanner:x:29:
+vcsa:x:69:
users:x:100:
nogroup:x:65534:
nobody:x:65534:
Index: package/base/sysfiles/etc_passwd.txt
===================================================================
--- package/base/sysfiles/etc_passwd.txt (Revision 31685)
+++ package/base/sysfiles/etc_passwd.txt (Arbeitskopie)
@@ -2,4 +2,6 @@
toor:x:0:0:emergency root:/root:/bin/kiss
bin:x:1:1:bin:/bin:/bin/false
daemon:x:2:2:daemon:/sbin:/bin/false
+uucp:x:14:14:uucp:/var/spool/uucp:/bin/false
+vcsa:x:69:69:vcsa:/var/empty:/bin/false
nobody:x:65534:65534:nobody:/var/empty:/bin/false
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