For some reason there went something wrong mounting the external HD ext3 partition.
It is not listed in the mounted drives by my function dx. Why do I use this function instead of "df -Tm"? For two reasons:
● it displays also a date+time stamp; that is very useful when you need to free disk space and want to compare instances of dx ran in the present and older ran ones; or when you start to run out of disk space - you can easily compare older ran dx with the most recent ran instance of dx.
● it omits some entries that usually I do not want to see: e.g. all mounted squashfs modules, since you have no df ("disk free") in these anyway, you cannot store any data in these since modules are read-only anyway. So listing a bunch of these via df never made any sense to me.
This is the code of the function:
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dx ()
{
echo $(date +%d.%m.%Y\ %H:%M:%S) ____________________________________________________________;
/bin/df -Tm $* | grep -vE 'tmpfs|/mnt/live/run|squashfs'
}
Now, back to my ext3 issue.
Aside from it not being listed with either dx of df, when I address it directly e.g. "dx /mnt/sdb4" it gets listed like so (same is true with the original df, aka listed via "df -Tm"):
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- - 469603 81481 383350 18% /mnt/sdb4
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/dev/sdb4 ext3 469603 81481 383350 18% /mnt/sdb4
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root@porteus:/# df -mT /dev/sdb4
Filesystem Type 1M-blocks Used Available Use% Mounted on
devtmpfs devtmpfs 1936 0 1936 0% /dev
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Error mounting system-managed device /dev/sdb4: Command-line `mount "/mnt/sdb4"' exited with non-zero exit status 32: mount: /mnt/sdb4: /dev/sdb4 already mounted or mount point busy.
Is this a possible danger for the data on that FS?
Or is the ext3 FS handled okay and the journal is working just fine?
While researching this issue I found this entry in the online version of "man mount"
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FILES
/etc/mnttab
Table of mounted file systems.
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guest@porteus:/$ ls -oa /etc/mtab
lrwxrwxrwx 1 root 17 Jan 9 13:29 /etc/mtab -> /proc/self/mounts
guest@porteus:/$ ls -oa /etc/mnttab
/bin/ls: cannot access '/etc/mnttab': No such file or directory
Do some Linux variants now use /etc/mnttab while others still use the older well known /etc/mtab?
"mtab" it not to be found even a single time in the online mount manual.