[solved/workaround]Using partition map labels to mount?

Cenrim · Last edited by Cenrim on Thu Nov 17, 2005 8:44 pm; edited 1 time in total

Hi guys!

do you know a way, to use the labels set when partitioning the disk of your mac with mac-fdisk for mount?
the partitions numbers are resorted every time you changed something, split a parttition or something... I did this on a few times in a row the last days and it's pretty confusing..
yesterday evening I forgot at least 3 times to update the root-entry in yaboot.conf or run ybin, just to realize after this. that I still didn't update my fstab :roll:

I searched the forums (probably with the wrong keywords ^^), the mount and the mac-fdisk manpage and googled but didn't find anything about mount using the partition map's labels...

so, nothing important, but maybe someone knows it

c yas!

zeekec · Posted: Mon Oct 10, 2005 1:47 pm Post subject:

I think the command you're looking for is "e2label." It will allow you to use labels in fstab instead of device entries. It won't help with yaboot, but you won't have to keep updating you're fstab.

Erik
_________________
Against stupidity the very gods
Themselves contend in vain.
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Cenrim · Posted: Wed Oct 12, 2005 10:37 pm Post subject:

no, didn't mean filesystem labels
I can label ext3, but not HFS+
what I mean is what is displayed the name column of mac-fdisk:

zeekec · Posted: Thu Oct 13, 2005 1:27 pm Post subject:

Sorry, no clue how to use those names.

Erik
_________________
Against stupidity the very gods
Themselves contend in vain.
-Johann Christoph Friedrich von Schiller (1801)

echo6 · Guru Joined: 04 Jan 2003 Posts: 587

Mount doesn't use partition map labels, it uses the LABEL information in the superblock on ext2/3 filesystems. Is that what you are trying to do?

Cenrim · Posted: Thu Nov 17, 2005 8:42 pm Post subject:

echo6: exactly, I wanted to use the labels from the partition map, cause half of my partitions are HFS+ (OS X, Darwin, data)

well, 'accidently' I found a directory /dev/disk/by-label full of symlinks while playing with the freshly ported hfsplus-tools and guess what, udev found the labels in the HFS+ partitions that only showed up in OS X and Darwin but not in gentoo's mount ^^
and mount /dev/disk/bylabel/data /mnt/data works!

well.. mount still has no clue about those labels, but as long as I can use them :roll:

*add [solved/workaround]*

EDIT1:
hmm.. I'm just thinking.. does udev create those symlinks?
then there could be a problem with using them in a early phase of init..
I only used them to mount my firewire disk and didn't change my fstab...

EDIT2:
well, since udev is one of the first services and checkroot is the next it's no problem
I changed my fstab and it works fine

but still I'm a liitle bit confused, because the label of the hfsplus on my panther partition is "OS X" , the label in the partition map is OS_X and.. wait...
*tests something*

EDIT3:
OK, udev replaces whitespaces in filesystem labels with "_", explains why the link is named "OS_X"

well, almost all filesystems (and both I'm using) support disklabels and together with udev's by-label directory this will work to ^^
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