I know this relates to an old version of Knoppix, but after remastering the os and upgrading the kernel to 2.6.31.6 (and compiling aufs as part of that) i'm not able to remount the /ramdisk branch as read-only upon boot. Or after in init 2. If anyone can advise on this, it'd be much appreciated.
When running the script below:
/usr/sbin/knoppix-image /mnt/sda1/knoppix.img
The following line is failing:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=ro /UNIONFS
The following line succeeds fine:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=rw /UNIONFS
I get mount: /UNIONFS is busy error.
I've deleted whiteout files on /ramdisk beforehand with:
find /ramdisk -iname .wh.\*.plnk -exec rm -Rfv {} \;
I've run fuser -m -v /ramdisk and used the -k option to kill processes off.
I've also run lsof /ramdisk and killed associated processes.
Distilling the command down to the following fails:
mount -t tmpfs -o remount,ro /ramdisk /ramdisk
The following command succeeds:
mount -t tmpfs -o remount,rw /ramdisk /ramdisk
In /etc/mtab /ramdisk has mode 755 0 0.
If you can help please advise.
Cisco Catalyst C9300-24UX-A 24 Port 10G/mGig Copper UPOE Network Switch
$499.00
Cisco WS-C2960X-48FPD-L 48 V07 POE+ GE+2 10G SFP+, LAN BASE 740W w/ C2960X-Stack
$140.00
Cisco 2900 Series CISCO2901/K9 v06 Integrated Services Router
$39.99
NEW Cisco C9300-NM-2Y Dual-Port SFP 25G Network Module / NEW -
$544.99
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$30.99
Cisco C3850-NM-4-10G 4 Port Network Exp.Module for 3850
$124.90
CISCO SFP-10G-LR SFP TRANSCEIVER MODULE GBIC 10G 10GB SFP - 1 Year Warranty
$39.99
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
Cisco Nexus N9K-C93108TC-EX 48-Port 10G RJ-45 6x100G QSFP Network Switch W/Ears
$499.99
Cisco WS-C3750X-48PF-S 48 Port PoE Gigabit Switch w/ C3KX-NM-10G & Dual 1100WAC
$121.88