[PATCH] Make IDE and DevFS get along

From: A Guy Called Tyketto (tyketto@wizard.com)
Date: Mon Jun 10 2002 - 05:34:15 EST


        A feature/patch from one of the generic IDE patchsets was introduced
into kernels >= 2.5.19 that, when DevFS is used, creates a directory called
/dev/ata, and a symlink to /dev/ata, called /dev/ide. This setup breaks DevFS'
use, as it does not follow the symlink when the IDE driver is initialised.
DevFS uses /dev/ide, which is the published interface, to create the
symlinks to /dev/hd*, which are created after reading /etc/fstab to get the
partitions. When /dev/ata is used, DevFS doesn't know what it is, can't find
/dev/ide/* for the /dev/hd* symlinks to be created, and drops into single user
mode to fix. This will always happen for anyone with their root partition on
an IDE drive, with DevFS used. The following patch fixes this problem.


        P.S. The only other way around this, would be to rewrite /etc/fstab to
find the full patch to the /dev/ata/host*.../part1 partition for / . That
really shouldn't have to be done.

Brad Littlejohn                         | Email:        tyketto@wizard.com
Unix Systems Administrator,             |           tyketto@ozemail.com.au
Web + NewsMaster, BOFH.. Smeghead! :)   |   http://www.wizard.com/~tyketto
  PGP: 1024D/E319F0BF 6980 AAD6 7329 E9E6 D569  F620 C819 199A E319 F0BF

--- linux/drivers/ide/main.c.ata Mon Jun 10 02:47:50 2002 +++ linux/drivers/ide/main.c Mon Jun 10 02:49:03 2002 @@ -1290,8 +1290,7 @@ { printk(KERN_INFO "ATA/ATAPI device driver v" VERSION "\n"); - ide_devfs_handle = devfs_mk_dir(NULL, "ata", NULL); - devfs_mk_symlink(NULL, "ide", DEVFS_FL_DEFAULT, "ata", NULL, NULL); + ide_devfs_handle = devfs_mk_dir(NULL, "ide", NULL); /* * Because most of the ATA adapters represent the timings in unit of - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

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