Hello,
I have an old Alix appliance on a CompactFlash, usually I keep / mounted
read-only to preserve the flash device as longer as possible.
I have installed some packages today, and now I can't mount / read-only
again, usually it was working.
markand@Ananas ~ $ sudo mount -u -r /
mount: /dev/ad0s1a : Device busy
But fstat does not show any file opened for writing in / or else (note
that /var /tmp are memory file systems)
USER CMD PID FD MOUNT INUM MODE SZ|DV R/W
root fstat 27734 root / 2 drwxr-xr-x 512 r
root fstat 27734 wd / 141635 drwxr-xr-x 512 r
root fstat 27734 text / 95191 -r-xr-sr-x 16644 r
root fstat 27734 0 /dev 55 crw--w---- pts/0 rw
root fstat 27734 1 /dev 55 crw--w---- pts/0 rw
root fstat 27734 2 /dev 55 crw--w---- pts/0 rw
root fstat 27734 3 /dev 11 crw-r----- mem r
root fstat 27734 4 /dev 12 crw-r----- kmem r
root fstat 27734 5 / 191672 -rw------- 40960 r
root sudo 27733 root / 2 drwxr-xr-x 512 r
root sudo 27733 wd / 141635 drwxr-xr-x 512 r
root sudo 27733 text / 123603 ---s--x--x 146416 r
root sudo 27733 0 /dev 55 crw--w---- pts/0 rw
root sudo 27733 1 /dev 55 crw--w---- pts/0 rw
root sudo 27733 2 /dev 55 crw--w---- pts/0 rw
root sudo 27733 3* local dgram c22de158
root sudo 27732 root / 2 drwxr-xr-x 512 r
root sudo 27732 wd / 141635 drwxr-xr-x 512 r
root sudo 27732 text / 123603 ---s--x--x 146416 r
root sudo 27732 0 /dev 55 crw--w---- pts/0 rw
root sudo 27732 1 /dev 55 crw--w---- pts/0 rw
root sudo 27732 2 /dev 55 crw--w---- pts/0 rw
root sudo 27732 3* local dgram c22ddd70
root cupsd 27621 root / 2 drwxr-xr-x 512 r
root cupsd 27621 wd / 2 drwxr-xr-x 512 r
root cupsd 27621 text / 167335 -r-x------ 425764 r
root cupsd 27621 0 /dev 23 crw-rw-rw- null r
root cupsd 27621 1 /dev 23 crw-rw-rw- null w
root cupsd 27621 2 /dev 23 crw-rw-rw- null w
root cupsd 27621 4 /var 112 -rw-r--r-- 8657 rw
root cupsd 27621 5 /var 26 -rw-r--r-- 4457 rw
root cupsd 27621 6 /var 113 -rw-r--r-- 78 rw
root cupsd 27621 7* internet stream tcp c239f000
root cupsd 27621 8* local stream c22de764
root cupsd 27621 9* internet dgram udp c222f44c
root cupsd 27621 10* pipe c21c4930 <-> c21c49e8 0 rw
root cupsd 27621 11* pipe c21c49e8 <-> c21c4930 0 rw
markand zsh 27552 root / 2 drwxr-xr-x 512 r
markand zsh 27552 wd / 141635 drwxr-xr-x 512 r
markand zsh 27552 text / 120676 -r-xr-xr-x 539936 r
markand zsh 27552 0 /dev 55 crw--w---- pts/0 rw
markand zsh 27552 1 /dev 55 crw--w---- pts/0 rw
markand zsh 27552 2 /dev 55 crw--w---- pts/0 rw
markand zsh 27552 10 /dev 55 crw--w---- pts/0 rw
markand zsh 27552 12 / 120733 -rw-r--r-- 175256 r
markand zsh 27552 13 / 121399 -rw-r--r-- 127840 r
markand zsh 27552 14 / 120765 -rw-r--r-- 246128 r
markand zsh 27552 15 / 121300 -rw-r--r-- 186416 r
markand zsh 27552 16 / 120959 -rw-r--r-- 2424816 r
markand zsh 27552 17 / 120748 -rw-r--r-- 46888 r
markand sshd 27551 root / 2 drwxr-xr-x 512 r
markand sshd 27551 wd / 2 drwxr-xr-x 512 r
markand sshd 27551 text / 95137 -r-xr-xr-x 228188 r
markand sshd 27551 0 /dev 23 crw-rw-rw- null rw
markand sshd 27551 1 /dev 23 crw-rw-rw- null rw
markand sshd 27551 2 /dev 23 crw-rw-rw- null rw
markand sshd 27551 3* internet stream tcp c239f768
markand sshd 27551 4* local stream c22dee1c <-> c24bf000
markand sshd 27551 5* pipe c21c47a8 <-> c21c4860 0 rw
markand sshd 27551 6* pipe c21c4860 <-> c21c47a8 0 rw
markand sshd 27551 7* pseudo-terminal master pts/0 rw
markand sshd 27551 9* pseudo-terminal master pts/0 rw
markand sshd 27551 10* pseudo-terminal master pts/0 rw
root sshd 27549 root / 2 drwxr-xr-x 512 r
root sshd 27549 wd / 2 drwxr-xr-x 512 r
root sshd 27549 text / 95137 -r-xr-xr-x 228188 r
root sshd 27549 0 /dev 23 crw-rw-rw- null r
root sshd 27549 1 /dev 23 crw-rw-rw- null rw
root sshd 27549 2 /dev 23 crw-rw-rw- null rw
root sshd 27549 3* internet stream tcp c239f768
root sshd 27549 4* pseudo-terminal master pts/0 rw
root sshd 27549 5* local stream c24bf000 <-> c22dee1c
root zsh 14180 root / 2 drwxr-xr-x 512 r
root zsh 14180 wd / 164865 drwxr-xr-x 512 r
root zsh 14180 text / 120676 -r-xr-xr-x 539936 r
root zsh 14180 0 /dev 28 crw------- ttyu0 rw
root zsh 14180 1 /dev 28 crw------- ttyu0 rw
root zsh 14180 2 /dev 28 crw------- ttyu0 rw
root zsh 14180 10 /dev 28 crw------- ttyu0 rw
root zsh 14180 12 / 120733 -rw-r--r-- 175256 r
root zsh 14180 13 / 121399 -rw-r--r-- 127840 r
root zsh 14180 14 / 120765 -rw-r--r-- 246128 r
root login 14179 root / 2 drwxr-xr-x 512 r
root login 14179 wd / 164865 drwxr-xr-x 512 r
root login 14179 text / 95243 -r-sr-xr-x 19116 r
root login 14179 0 /dev 28 crw------- ttyu0 rw
root login 14179 1 /dev 28 crw------- ttyu0 rw
root login 14179 2 /dev 28 crw------- ttyu0 rw
root login 14179 3* local dgram c22dd560 <-> c22dd2b0
nobody dnsmasq 37448 root / 2 drwxr-xr-x 512 r
nobody dnsmasq 37448 wd / 2 drwxr-xr-x 512 r
nobody dnsmasq 37448 text / 121623 -r-xr-xr-x 148684 r
nobody dnsmasq 37448 0 /dev 23 crw-rw-rw- null rw
nobody dnsmasq 37448 1 /dev 23 crw-rw-rw- null rw
nobody dnsmasq 37448 2 /dev 23 crw-rw-rw- null rw
nobody dnsmasq 37448 3 /var 1109 -rw-r--r-- 69 rw
nobody dnsmasq 37448 4* internet dgram udp c222fe9c
nobody dnsmasq 37448 5* internet raw icmp c23997bc
nobody dnsmasq 37448 6 /dev 25 crw------- bpf rw
nobody dnsmasq 37448 7* internet dgram udp c222f528
nobody dnsmasq 37448 8* internet stream tcp c239e9e0
nobody dnsmasq 37448 9* pipe c21c4ab8 <-> c21c4b70 0 rw
nobody dnsmasq 37448 10* pipe c21c4b70 <-> c21c4ab8 0 rw
nobody dnsmasq 37448 11* local dgram c22dda14 <-> c22dd35c
root ntpd 54580 root / 2 drwxr-xr-x 512 r
root ntpd 54580 wd / 2 drwxr-xr-x 512 r
root ntpd 54580 text / 95480 -r-xr-xr-x 345040 r
root ntpd 54580 0 /dev 23 crw-rw-rw- null rw
root ntpd 54580 1 /dev 23 crw-rw-rw- null rw
root ntpd 54580 2 /dev 23 crw-rw-rw- null rw
root ntpd 54580 3* local dgram c22dd158 <-> c22dd2b0
root ntpd 54580 20* internet dgram udp c222fa50
root ntpd 54580 21* internet dgram udp c222f294
root ntpd 54580 22* internet dgram udp c222fc08
root ntpd 54580 23* internet dgram udp c222fce4
root ntpd 54580 24* route raw 0 c222e9a8
root hostapd 1330 root / 2 drwxr-xr-x 512 r
root hostapd 1330 wd / 2 drwxr-xr-x 512 r
root hostapd 1330 text / 95555 -r-xr-xr-x 241828 r
root hostapd 1330 0 /dev 23 crw-rw-rw- null rw
root hostapd 1330 1 /dev 23 crw-rw-rw- null rw
root hostapd 1330 2 /dev 23 crw-rw-rw- null rw
root hostapd 1330 3* internet dgram udp c222f370
root hostapd 1330 4 /dev 25 crw------- bpf rw
root hostapd 1330 5* route raw 0 c23a0b44
root hostapd 1330 6* local dgram c22dd60c <-> c22dd2b0
root hostapd 1330 7* local dgram c22dd6b8
root cron 1286 root / 2 drwxr-xr-x 512 r
root cron 1286 wd /var 2178 drwxr-x--- 512 r
root cron 1286 text / 95401 -r-xr-xr-x 34276 r
root cron 1286 0 /dev 23 crw-rw-rw- null rw
root cron 1286 1 /dev 23 crw-rw-rw- null rw
root cron 1286 2 /dev 23 crw-rw-rw- null rw
root cron 1286 3 /var 1117 -rw------- 4 w
root sshd 1275 root / 2 drwxr-xr-x 512 r
root sshd 1275 wd / 2 drwxr-xr-x 512 r
root sshd 1275 text / 95137 -r-xr-xr-x 228188 r
root sshd 1275 0 /dev 23 crw-rw-rw- null rw
root sshd 1275 1 /dev 23 crw-rw-rw- null rw
root sshd 1275 2 /dev 23 crw-rw-rw- null rw
root sshd 1275 3* internet stream tcp c239e278
nobody darkstat 1245 root / 2 drwxr-xr-x 512 r
nobody darkstat 1245 wd /var 1113 drwxr-xr-x 512 r
nobody darkstat 1245 text / 121785 -r-xr-xr-x 94785 r
nobody darkstat 1245 0 /dev 23 crw-rw-rw- null rw
nobody darkstat 1245 1 /dev 23 crw-rw-rw- null rw
nobody darkstat 1245 2 /dev 23 crw-rw-rw- null rw
nobody darkstat 1245 3* local stream c22dd000 <-> c22dd408
nobody darkstat 1244 root /var 1113 drwxr-xr-x 512 r
nobody darkstat 1244 wd /var 1113 drwxr-xr-x 512 r
nobody darkstat 1244 jail /var 1113 drwxr-xr-x 512 r
nobody darkstat 1244 text / 121785 -r-xr-xr-x 94785 r
nobody darkstat 1244 0 /dev 23 crw-rw-rw- null rw
nobody darkstat 1244 1 /dev 23 crw-rw-rw- null rw
nobody darkstat 1244 2 /dev 23 crw-rw-rw- null rw
nobody darkstat 1244 3 /dev 25 crw------- bpf rw
nobody darkstat 1244 7* local stream c22dd408 <-> c22dd000
nobody darkstat 1244 8* internet stream tcp c239e768
root syslogd 959 root / 2 drwxr-xr-x 512 r
root syslogd 959 wd / 2 drwxr-xr-x 512 r
root syslogd 959 text / 95529 -r-xr-xr-x 35916 r
root syslogd 959 0 /dev 23 crw-rw-rw- null rw
root syslogd 959 1 /dev 23 crw-rw-rw- null rw
root syslogd 959 2 /dev 23 crw-rw-rw- null rw
root syslogd 959 3 /var 1104 -rw------- 3 w
root syslogd 959 4* local dgram c22dd35c
root syslogd 959 5* local dgram c22dd2b0
root syslogd 959 6* internet dgram udp c222f604
root syslogd 959 7 /dev 10 crw------- klog r
root syslogd 959 9 /dev 5 crw------- console w
root syslogd 959 10 /var 19 -rw-r--r-- 80408 w
root syslogd 959 11 /var 21 -rw------- 61 w
root syslogd 959 12 /var 13 -rw------- 15574 w
root syslogd 959 13 /var 141 -rw-r----- 225 w
root syslogd 959 14 /var 17 -rw-r--r-- 119 w
root syslogd 959 15 /var 22 -rw------- 61 w
root syslogd 959 16 /var 12 -rw------- 78785 w
root syslogd 959 17 /var 49 -rw------- 81367 w
root syslogd 959 18 /var 20 -rw-r----- 61 w
root devd 704 root / 2 drwxr-xr-x 512 r
root devd 704 wd / 2 drwxr-xr-x 512 r
root devd 704 text / 47150 -r-xr-xr-x 379540 r
root devd 704 0 /dev 23 crw-rw-rw- null rw
root devd 704 1 /dev 23 crw-rw-rw- null rw
root devd 704 2 /dev 23 crw-rw-rw- null rw
root devd 704 3 / 188420 drwxr-xr-x 512 r
root devd 704 4 /dev 4 crw------- devctl r
root devd 704 5* local stream c22dd968
root devd 704 6 /var 1103 -rw------- 3 w
_pflogd pflogd 576 root /var 4 dr-xr-xr-x 512 r
_pflogd pflogd 576 wd /var 4 dr-xr-xr-x 512 r
_pflogd pflogd 576 jail /var 4 dr-xr-xr-x 512 r
_pflogd pflogd 576 text / 47238 -r-xr-xr-x 18812 r
_pflogd pflogd 576 0 /dev 23 crw-rw-rw- null rw
_pflogd pflogd 576 1 /dev 23 crw-rw-rw- null rw
_pflogd pflogd 576 2 /dev 23 crw-rw-rw- null rw
_pflogd pflogd 576 3 /dev 25 crw------- bpf rw
_pflogd pflogd 576 4 /var 32 -rw------- 14006 rw
_pflogd pflogd 576 5* local stream c22ddb6c <-> c22ddc18
root pflogd 573 root / 2 drwxr-xr-x 512 r
root pflogd 573 wd / 2 drwxr-xr-x 512 r
root pflogd 573 text / 47238 -r-xr-xr-x 18812 r
root pflogd 573 0 /dev 23 crw-rw-rw- null rw
root pflogd 573 1 /dev 23 crw-rw-rw- null rw
root pflogd 573 2 /dev 23 crw-rw-rw- null rw
root pflogd 573 3 /dev 25 crw------- bpf rw
root pflogd 573 4* local stream c22ddc18 <-> c22ddb6c
root pflogd 573 5* local dgram c22dd0ac <-> c22dd2b0
root md1 87 root / 2 drwxr-xr-x 512 r
root md1 87 wd / 2 drwxr-xr-x 512 r
root md0 82 root / 2 drwxr-xr-x 512 r
root md0 82 wd / 2 drwxr-xr-x 512 r
root init 1 root / 2 drwxr-xr-x 512 r
root init 1 wd / 2 drwxr-xr-x 512 r
root init 1 text / 47225 -r-xr-xr-x 534608 r
root kernel 0 root / 2 drwxr-xr-x 512 r
root kernel 0 wd / 2 drwxr-xr-x 512 r
Do you have any ideas?
Cheers,
--
David Demelier
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