Comments (6)
Check with squashmount list
whether really the same tools are used. For overlay or overlayfs, a possibility might be that the underlying FS does not support extended attributes.
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Addendum: extended attributes are not a property of the filesystem type but of the kernel configuration for it and perhaps of mount and/or /etc/fstab options.
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The problem is that I cannot see any differences -- neither in squashmount list
output nor in kernel options nor mount
output, etc.
As for kernel config, XATTR and JFS never meet. So I suppose xattr are always on. I checked even hidden (unconfigurable) config options.
I checked deleted files on both systems -- both are character special 0, 0. Looks like a kernel bug in overlay_fs. Will try to upgrade a kernel to see.
BTW -- how can I undo the squashmount and restore the original file tree? I found no command description -- neither here nor on help text provided -- only options. Without that the system is nearly unusable.
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I don't know whether JFS supports XATTR.
both are character special 0, 0
Yes, and some XATTR entries mean that it is deleted.
how can I undo the squashmount and restore the original file tree
unsquash squashfile
(in the corresponding directory). This is not worth writing a wrapper.
from squashmount.
I don't know whether JFS supports XATTR.
Well, it does. Theoretically. Because there is
CONFIG_JFS_POSIX_ACL
CONFIG_JFS_SECURITY
that have to use xattr. And I suspect that xattr are there only if at least one of these options is set. Also, as far as I built new kernel, I may see fs/jfs/xattr.o
in there.
However is still doesn't work! My last idea is that xattr probably has to be there at the time the FS is created... otherwise I can't explain what's going on... at least I haven't found anything relevant.
So I gave up for now. Maybe I'll find some time to fiddle with it some more.
This is not worth writing a wrapper.
Fair enough.
unsquash squashfile
Not exactly so
unsquashfs squashfile
creates extra level, namely squashfs_root
directory, so you have etier to lift up all its content and delete it, or, from the upper directory rmdir
the target then
unsquashfs -d target target.mount/target.sfs
Please add this to the docs.
Closing so far. Will let you know if I find the solution.
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Changed / to EXT4, all my mystique issues are gone now. Sorry I took your time.
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Related Issues (12)
- Check for squashfs support before deleting source dir HOT 2
- emerge --sync error after resquashing HOT 4
- Failure to mount rw overlay with built-in modules HOT 2
- fuse: unknown option(s): `-o nonempty' HOT 3
- `SRC_URI` doesnโt use HTTPS HOT 5
- Perl errors after first mount in 7.3 HOT 2
- [/etc/squashmount.pl] comments minor modifications HOT 1
- Is there any way to use this without root? HOT 3
- running squashmount in a cron script HOT 3
- MemoryDenyWriteExecute option not met HOT 12
- Conflicts of squashmount and qt5 directory? HOT 3
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