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 WS-C3850-48P-L 48-Port Gigabit 3850 PoE Switch w/ 715W+ C3850-NM-4-1G Mod
$83.00
Cisco C9300-48UN-A 48-port Network Advantage Switch w /C9300-NM-8+PWR-C1-1100WAC
$1194.00
Cisco N9K-C9332C ACI Spine switch 32 ports 40/100G QSFP28 + 2p 10G SFP
$5550.00
Cisco Systems NCS2K-20-SMRFS-L optical multiplexor CISCO EXCESS
$3599.00
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$38.99
Cisco Catalyst WS-C2960-48TT-L V02 48 Port Fast Ethernet Switch
$34.00
Cisco WS-C4948-10GE-S 4948-10GE 48 Port Gigabit +10GB Switch w single AC 15.0 OS
$99.99
Cisco CBS350-24FP-4G 28 Port PoE Managed Ethernet Switch
$319.99
Cisco C9300-48 48 Port Switch Dual PSU W/C9300-NM-8X P/N: C9300-48U-A Tested
$799.99
Cisco Catalyst 3650 48-Port Managed PoE+ Gigabit Switch WS-C3650-48FS-E
$55.99