* Re: mount --no-canonical seems broken. [not found] ` <20130520074001.GE16493@x2.net.home> @ 2013-05-20 23:30 ` Linda Walsh 2013-05-21 9:47 ` Karel Zak 0 siblings, 1 reply; 3+ messages in thread From: Linda Walsh @ 2013-05-20 23:30 UTC (permalink / raw) To: Karel Zak; +Cc: util-linux, Linux-Kernel Karel Zak wrote: > > The problem is that "mount" (without options) prints always canonicalized > paths (and in this case --no-canonicalize has no effect, this option > is used for mounting only). It means if you have non-canonical paths > in /etc/mtab then "mount" still prints canonical paths. I can fix it > and make the output sensitive to --no-canonicalize option too. > > Anyway, use findmnt, it provides but complete control on the output. > > Karel > ---- Sure give better control, but not as widely known as "df" or "mount". I might point out that by default, > findmnt / TARGET SOURCE FSTYPE OPTIONS / /dev/root xfs rw,nodiratime,relatime,attr2,inode64,noquota > > l /dev/root ls: cannot access /dev/root: No such file or directory ----- It's not a device in /dev/ nor is it in /proc/devices. Conversely, klogd 1.4.1, log source = ksyslog started. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.9.0-Isht-Van (law@Ishtar) (gcc version 4.7.2 20130205 [gcc-4_7-branch revision 195759] (SUSE Linux) ) #6 SMP PREEMPT Wed May 8 17:28:40 PDT 2013 [ 0.000000] Command line: BOOT_IMAGE=390-Isht-Van rw root=/dev/sdc1 root=/dev/sdc1 showopts console=ttyS0,115200n8 console=tty0 elevator=cfq pcie_aspm=force pcie_ports=native reboot=bios The kernel seems to know the root image at boot (even told twice from this output!) Not to mention, there is some comment in the kernel-related code of using /dev/root because there is no writable storage available... even though the command line shows that root is mounted 'rw'... ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: mount --no-canonical seems broken. 2013-05-20 23:30 ` mount --no-canonical seems broken Linda Walsh @ 2013-05-21 9:47 ` Karel Zak 2013-05-21 19:31 ` Linda Walsh 0 siblings, 1 reply; 3+ messages in thread From: Karel Zak @ 2013-05-21 9:47 UTC (permalink / raw) To: Linda Walsh; +Cc: util-linux, Linux-Kernel On Mon, May 20, 2013 at 04:30:21PM -0700, Linda Walsh wrote: > widely known as "df" or "mount". > > I might point out that by default, > > findmnt / > > TARGET SOURCE FSTYPE OPTIONS > / /dev/root xfs rw,nodiratime,relatime,attr2,inode64,noquota > > > l /dev/root > ls: cannot access /dev/root: No such file or directory util-linux 2.23 ? libmount since this version is able to use the root= kernel command line option to convert /dev/root from the /proc/self/mountinfo file to a real device name. Karel -- Karel Zak <kzak@redhat.com> http://karelzak.blogspot.com ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: mount --no-canonical seems broken. 2013-05-21 9:47 ` Karel Zak @ 2013-05-21 19:31 ` Linda Walsh 0 siblings, 0 replies; 3+ messages in thread From: Linda Walsh @ 2013-05-21 19:31 UTC (permalink / raw) To: Karel Zak; +Cc: util-linux, Linux-Kernel Karel Zak wrote: > On Mon, May 20, 2013 at 04:30:21PM -0700, Linda Walsh wrote: > >> widely known as "df" or "mount". >> >> I might point out that by default, >> >>> findmnt / >>> >> TARGET SOURCE FSTYPE OPTIONS >> / /dev/root xfs rw,nodiratime,relatime,attr2,inode64,noquota >> >>>> l /dev/root >>>> >> ls: cannot access /dev/root: No such file or directory >> > > util-linux 2.23 ? > > libmount since this version is able to use the root= kernel command > line option to convert /dev/root from the /proc/self/mountinfo file > to a real device name. > ---- I'm only at 2.19, will get & try newer version. Thanks! ^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-05-20 23:30 ` mount --no-canonical seems broken Linda Walsh
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2013-05-21 19:31 ` Linda Walsh
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