[arch-releng] isohybrid -offset 1, can't mount partitions inside live env
Gerardo Exequiel Pozzi
vmlinuz386 at yahoo.com.ar
Mon Mar 15 16:41:47 CET 2010
Hello,
There is another issue with offset 1. This does not happen with offset 0.
My scenario:
* 2G USB key
* isohybrid -offset 1
* another primary partition created (also is the same issue happens with a logical part instead)
# mount /dev/sdc2 /home/hola
mount: /dev/sdc2 already mounted or /home/hola busy
** strace shows:
mount("/dev/sdc2", "/home/hola/", "ext2", MS_MGC_VAL, NULL) = -1 EBUSY (Device or resource busy)
# mkfs.ext2 /dev/sdc2
mke2fs 1.41.10 (10-Feb-2009)
/dev/sdc2 is apparently in use by the system; will not make a filesystem here!
** strace shows:
open("/dev/sdc2", O_RDONLY|O_EXCL) = -1 EBUSY (Device or resource busy)
My conclusion is, isohybrid mode is a great hack!. But of course, carries some inevitable issues.
The big dichotomy:
* offset 1:
+ allows some partitions programs works without issues. (at least I know about parted issue)
- Can not use extra partitions created in the medium.
- Can not use /dev/disk/by-label/ skip archiso_early.
* offset 0:
- Cause issues with some partitions programs.
+ Can use extra partitions.
+ Can use "by-label" (under condition that all partitions must have a LABEL)
Good luck!
--
Gerardo Exequiel Pozzi ( djgera )
http://www.djgera.com.ar
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